Merge development

158 files changed, 8753 insertions, 142 deletions

diff --git a/python-packages/cmd_pkgs_in_dep_order.py b/python-packages/cmd_pkgs_in_dep_order.py
new file mode 100755
index 000000000..ec739adc0
--- /dev/null
+++ b/python-packages/cmd_pkgs_in_dep_order.py
@@ -0,0 +1,25 @@
+#!/usr/bin/env python
+
+"""Run a command in every package, in order of increasing dependency."""
+
+import os
+import subprocess
+import sys
+
+
+PACKAGE_DEPENDENCY_LIST = [
+    # Order matters!  Packages must be handled in dependency order (most
+    # independent first) in order for them to resolve properly.
+    "contract_addresses",
+    "contract_artifacts",
+    "json_schemas",
+    "sra_client",
+    "order_utils",
+    "contract_demo"
+]
+
+for package in PACKAGE_DEPENDENCY_LIST:
+    print(f"Running command `{sys.argv[1:]}` in package {package}")
+    os.chdir(package)
+    subprocess.check_call(sys.argv[1:])
+    os.chdir("..")
diff --git a/python-packages/contract_addresses/.discharge.json b/python-packages/contract_addresses/.discharge.json
new file mode 100644
index 000000000..d6c90a20f
--- /dev/null
+++ b/python-packages/contract_addresses/.discharge.json
@@ -0,0 +1,13 @@
+{
+    "domain": "0x-contract-addresses-py",
+    "build_command": "python setup.py build_sphinx",
+    "upload_directory": "build/docs/html",
+    "index_key": "index.html",
+    "error_key": "index.html",
+    "trailing_slashes": true,
+    "cache": 3600,
+    "aws_profile": "default",
+    "aws_region": "us-east-1",
+    "cdn": false,
+    "dns_configured": true
+}
diff --git a/python-packages/contract_addresses/README.md b/python-packages/contract_addresses/README.md
new file mode 100644
index 000000000..d5e098deb
--- /dev/null
+++ b/python-packages/contract_addresses/README.md
@@ -0,0 +1,39 @@
+## 0x-contract-addresses
+
+Addresses at which the 0x smart contracts have been deployed.
+
+Read the [documentation](http://0x-contract-addresses-py.s3-website-us-east-1.amazonaws.com/)
+
+## Installing
+
+```bash
+pip install 0x-contract-addresses
+```
+
+## Contributing
+
+We welcome improvements and fixes from the wider community! To report bugs within this package, please create an issue in this repository.
+
+Please read our [contribution guidelines](../../CONTRIBUTING.md) before getting started.
+
+### Install Code and Dependencies
+
+```bash
+pip install -e .[dev]
+```
+
+### Clean
+
+`./setup.py clean --all`
+
+### Lint
+
+`./setup.py lint`
+
+### Build Documentation
+
+`./setup.py build_sphinx`
+
+### More
+
+See `./setup.py --help-commands` for more info.
diff --git a/python-packages/contract_addresses/setup.py b/python-packages/contract_addresses/setup.py
new file mode 100755
index 000000000..9ddafbeea
--- /dev/null
+++ b/python-packages/contract_addresses/setup.py
@@ -0,0 +1,181 @@
+#!/usr/bin/env python
+
+"""setuptools module for contract_addresses package."""
+
+import subprocess  # nosec
+from shutil import rmtree
+from os import environ, path
+from sys import argv
+
+from distutils.command.clean import clean
+import distutils.command.build_py
+from setuptools import find_packages, setup
+
+
+class LintCommand(distutils.command.build_py.build_py):
+    """Custom setuptools command class for running linters."""
+
+    description = "Run linters"
+
+    def run(self):
+        """Run linter shell commands."""
+        lint_commands = [
+            # formatter:
+            "black --line-length 79 --check --diff src setup.py".split(),
+            # style guide checker (formerly pep8):
+            "pycodestyle --show-source --show-pep8 src setup.py".split(),
+            # docstring style checker:
+            "pydocstyle src setup.py".split(),
+            # static type checker:
+            "mypy src setup.py".split(),
+            # security issue checker:
+            "bandit -r src ./setup.py".split(),
+            # run doctests:
+            "pytest --doctest-modules".split(),
+            # general linter:
+            "pylint src setup.py".split(),
+            # pylint takes relatively long to run, so it runs last, to enable
+            # fast failures.
+        ]
+
+        # tell mypy where to find interface stubs for 3rd party libs
+        environ["MYPYPATH"] = path.join(
+            path.dirname(path.realpath(argv[0])), "stubs"
+        )
+
+        for lint_command in lint_commands:
+            print(
+                "Running lint command `", " ".join(lint_command).strip(), "`"
+            )
+            subprocess.check_call(lint_command)  # nosec
+
+
+class CleanCommandExtension(clean):
+    """Custom command to do custom cleanup."""
+
+    def run(self):
+        """Run the regular clean, followed by our custom commands."""
+        super().run()
+        rmtree("dist", ignore_errors=True)
+        rmtree(".mypy_cache", ignore_errors=True)
+        rmtree(".tox", ignore_errors=True)
+        rmtree(".pytest_cache", ignore_errors=True)
+        rmtree("src/0x_contract_addresses.egg-info", ignore_errors=True)
+
+
+class TestPublishCommand(distutils.command.build_py.build_py):
+    """Custom command to publish to test.pypi.org."""
+
+    description = (
+        "Publish dist/* to test.pypi.org. Run sdist & bdist_wheel first."
+    )
+
+    def run(self):
+        """Run twine to upload to test.pypi.org."""
+        subprocess.check_call(  # nosec
+            (
+                "twine upload --repository-url https://test.pypi.org/legacy/"
+                + " --verbose dist/*"
+            ).split()
+        )
+
+
+class PublishCommand(distutils.command.build_py.build_py):
+    """Custom command to publish to pypi.org."""
+
+    description = "Publish dist/* to pypi.org. Run sdist & bdist_wheel first."
+
+    def run(self):
+        """Run twine to upload to pypi.org."""
+        subprocess.check_call("twine upload dist/*".split())  # nosec
+
+
+class PublishDocsCommand(distutils.command.build_py.build_py):
+    """Custom command to publish docs to S3."""
+
+    description = (
+        "Publish docs to "
+        + "http://0x-contract-addresses-py.s3-website-us-east-1.amazonaws.com/"
+    )
+
+    def run(self):
+        """Run npm package `discharge` to build & upload docs."""
+        subprocess.check_call("discharge deploy".split())  # nosec
+
+
+with open("README.md", "r") as file_handle:
+    README_MD = file_handle.read()
+
+
+setup(
+    name="0x-contract-addresses",
+    version="2.0.0",
+    description="Addresses at which the 0x smart contracts have been deployed",
+    long_description=README_MD,
+    long_description_content_type="text/markdown",
+    url=(
+        "https://github.com/0xproject/0x-monorepo/tree/development"
+        + "/python-packages/contract_addresses"
+    ),
+    author="F. Eugene Aumson",
+    author_email="feuGeneA@users.noreply.github.com",
+    cmdclass={
+        "clean": CleanCommandExtension,
+        "lint": LintCommand,
+        "test_publish": TestPublishCommand,
+        "publish": PublishCommand,
+        "publish_docs": PublishDocsCommand,
+    },
+    install_requires=["mypy_extensions"],
+    extras_require={
+        "dev": [
+            "bandit",
+            "black",
+            "coverage",
+            "coveralls",
+            "mypy",
+            "mypy_extensions",
+            "pycodestyle",
+            "pydocstyle",
+            "pylint",
+            "pytest",
+            "sphinx",
+            "tox",
+            "twine",
+        ]
+    },
+    python_requires=">=3.6, <4",
+    package_data={"zero_ex.contract_addresses": ["py.typed"]},
+    package_dir={"": "src"},
+    license="Apache 2.0",
+    keywords=(
+        "ethereum cryptocurrency 0x decentralized blockchain dex exchange"
+    ),
+    namespace_packages=["zero_ex"],
+    packages=find_packages("src"),
+    classifiers=[
+        "Development Status :: 5 - Production/Stable",
+        "Intended Audience :: Developers",
+        "Intended Audience :: Financial and Insurance Industry",
+        "License :: OSI Approved :: Apache Software License",
+        "Natural Language :: English",
+        "Operating System :: OS Independent",
+        "Programming Language :: Python",
+        "Programming Language :: Python :: 3 :: Only",
+        "Programming Language :: Python :: 3.6",
+        "Programming Language :: Python :: 3.7",
+        "Topic :: Internet :: WWW/HTTP",
+        "Topic :: Office/Business :: Financial",
+        "Topic :: Other/Nonlisted Topic",
+        "Topic :: Security :: Cryptography",
+        "Topic :: Software Development :: Libraries",
+        "Topic :: Utilities",
+    ],
+    zip_safe=False,  # required per mypy
+    command_options={
+        "build_sphinx": {
+            "source_dir": ("setup.py", "src"),
+            "build_dir": ("setup.py", "build/docs"),
+        }
+    },
+)
diff --git a/python-packages/contract_addresses/src/conf.py b/python-packages/contract_addresses/src/conf.py
new file mode 100644
index 000000000..a0f372bc5
--- /dev/null
+++ b/python-packages/contract_addresses/src/conf.py
@@ -0,0 +1,54 @@
+"""Configuration file for the Sphinx documentation builder."""
+
+# Reference: http://www.sphinx-doc.org/en/master/config
+
+from typing import List
+import pkg_resources
+
+
+# pylint: disable=invalid-name
+# because these variables are not named in upper case, as globals should be.
+
+project = "0x-contract-addresses"
+# pylint: disable=redefined-builtin
+copyright = "2018, ZeroEx, Intl."
+author = "F. Eugene Aumson"
+version = pkg_resources.get_distribution("0x-contract-addresses").version
+release = ""  # The full version, including alpha/beta/rc tags
+
+extensions = [
+    "sphinx.ext.autodoc",
+    "sphinx.ext.doctest",
+    "sphinx.ext.intersphinx",
+    "sphinx.ext.coverage",
+    "sphinx.ext.viewcode",
+]
+
+templates_path = ["doc_templates"]
+
+source_suffix = ".rst"
+# eg: source_suffix = [".rst", ".md"]
+
+master_doc = "index"  # The master toctree document.
+
+language = None
+
+exclude_patterns: List[str] = []
+
+# The name of the Pygments (syntax highlighting) style to use.
+pygments_style = None
+
+html_theme = "alabaster"
+
+html_static_path = ["doc_static"]
+# Add any paths that contain custom static files (such as style sheets) here,
+# relative to this directory. They are copied after the builtin static files,
+# so a file named "default.css" will overwrite the builtin "default.css".
+
+# Output file base name for HTML help builder.
+htmlhelp_basename = "contract_addressespydoc"
+
+# -- Extension configuration:
+
+# Example configuration for intersphinx: refer to the Python standard library.
+intersphinx_mapping = {"https://docs.python.org/": None}
diff --git a/python-packages/order_utils/stubs/jsonschema/exceptions.pyi b/python-packages/contract_addresses/src/doc_static/.gitkeep
index e69de29bb..e69de29bb 100644
--- a/python-packages/order_utils/stubs/jsonschema/exceptions.pyi
+++ b/python-packages/contract_addresses/src/doc_static/.gitkeep
diff --git a/python-packages/contract_addresses/src/index.rst b/python-packages/contract_addresses/src/index.rst
new file mode 100644
index 000000000..7ac329ce2
--- /dev/null
+++ b/python-packages/contract_addresses/src/index.rst
@@ -0,0 +1,25 @@
+.. source for the sphinx-generated build/docs/web/index.html
+
+Python zero_ex.contract_addresses
+=================================
+
+.. toctree::
+   :maxdepth: 2
+   :caption: Contents:
+
+.. autoclass:: zero_ex.contract_addresses.NetworkId
+
+   See source for enum members.
+
+.. autoclass:: zero_ex.contract_addresses.ContractAddresses
+   :members:
+
+.. autodata:: zero_ex.contract_addresses.NETWORK_TO_ADDRESSES
+   :annotation:
+
+Indices and tables
+==================
+
+* :ref:`genindex`
+* :ref:`modindex`
+* :ref:`search`
diff --git a/python-packages/contract_addresses/src/zero_ex/__init__.py b/python-packages/contract_addresses/src/zero_ex/__init__.py
new file mode 100644
index 000000000..e90d833db
--- /dev/null
+++ b/python-packages/contract_addresses/src/zero_ex/__init__.py
@@ -0,0 +1,2 @@
+"""0x Python API."""
+__import__("pkg_resources").declare_namespace(__name__)
diff --git a/python-packages/contract_addresses/src/zero_ex/contract_addresses/__init__.py b/python-packages/contract_addresses/src/zero_ex/contract_addresses/__init__.py
new file mode 100644
index 000000000..a4bfc3f4c
--- /dev/null
+++ b/python-packages/contract_addresses/src/zero_ex/contract_addresses/__init__.py
@@ -0,0 +1,93 @@
+"""Addresses at which the 0x smart contracts have been deployed."""
+
+from enum import Enum
+from typing import Dict, NamedTuple
+
+
+class ContractAddresses(NamedTuple):  # noqa
+    """An abstract record listing all the contracts that have addresses."""
+
+    erc20_proxy: str
+    erc721_proxy: str
+    zrx_token: str
+    ether_token: str
+    exchange: str
+    asset_proxy_owner: str
+    forwarder: str
+    order_validator: str
+
+
+class NetworkId(Enum):
+    """Network names correlated to their network identification numbers.
+
+    >>> NetworkId.MAINNET
+    <NetworkId.MAINNET: 1>
+    """
+
+    MAINNET = 1
+    ROPSTEN = 3
+    RINKEBY = 4
+    KOVAN = 42
+    GANACHE = 50
+
+
+NETWORK_TO_ADDRESSES: Dict[NetworkId, ContractAddresses] = {
+    NetworkId.MAINNET: ContractAddresses(
+        erc20_proxy="0x2240dab907db71e64d3e0dba4800c83b5c502d4e",
+        erc721_proxy="0x208e41fb445f1bb1b6780d58356e81405f3e6127",
+        zrx_token="0xe41d2489571d322189246dafa5ebde1f4699f498",
+        ether_token="0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
+        exchange="0x4f833a24e1f95d70f028921e27040ca56e09ab0b",
+        asset_proxy_owner="0x17992e4ffb22730138e4b62aaa6367fa9d3699a6",
+        forwarder="0x5468a1dc173652ee28d249c271fa9933144746b1",
+        order_validator="0x9463e518dea6810309563c81d5266c1b1d149138",
+    ),
+    NetworkId.ROPSTEN: ContractAddresses(
+        erc20_proxy="0xb1408f4c245a23c31b98d2c626777d4c0d766caa",
+        erc721_proxy="0xe654aac058bfbf9f83fcaee7793311dd82f6ddb4",
+        zrx_token="0xff67881f8d12f372d91baae9752eb3631ff0ed00",
+        ether_token="0xc778417e063141139fce010982780140aa0cd5ab",
+        exchange="0x4530c0483a1633c7a1c97d2c53721caff2caaaaf",
+        asset_proxy_owner="0xf5fa5b5fed2727a0e44ac67f6772e97977aa358b",
+        forwarder="0x2240dab907db71e64d3e0dba4800c83b5c502d4e",
+        order_validator="0x90431a90516ab49af23a0530e04e8c7836e7122f",
+    ),
+    NetworkId.RINKEBY: ContractAddresses(
+        exchange="0xbce0b5f6eb618c565c3e5f5cd69652bbc279f44e",
+        erc20_proxy="0x2f5ae4f6106e89b4147651688a92256885c5f410",
+        erc721_proxy="0x7656d773e11ff7383a14dcf09a9c50990481cd10",
+        zrx_token="0x8080c7e4b81ecf23aa6f877cfbfd9b0c228c6ffa",
+        ether_token="0xc778417e063141139fce010982780140aa0cd5ab",
+        asset_proxy_owner="0xe1703da878afcebff5b7624a826902af475b9c03",
+        forwarder="0x2d40589abbdee84961f3a7656b9af7adb0ee5ab4",
+        order_validator="0x0c5173a51e26b29d6126c686756fb9fbef71f762",
+    ),
+    NetworkId.KOVAN: ContractAddresses(
+        erc20_proxy="0xf1ec01d6236d3cd881a0bf0130ea25fe4234003e",
+        erc721_proxy="0x2a9127c745688a165106c11cd4d647d2220af821",
+        zrx_token="0x2002d3812f58e35f0ea1ffbf80a75a38c32175fa",
+        ether_token="0xd0a1e359811322d97991e03f863a0c30c2cf029c",
+        exchange="0x35dd2932454449b14cee11a94d3674a936d5d7b2",
+        asset_proxy_owner="0x2c824d2882baa668e0d5202b1e7f2922278703f8",
+        forwarder="0x17992e4ffb22730138e4b62aaa6367fa9d3699a6",
+        order_validator="0xb389da3d204b412df2f75c6afb3d0a7ce0bc283d",
+    ),
+    NetworkId.GANACHE: ContractAddresses(
+        exchange="0x48bacb9266a570d521063ef5dd96e61686dbe788",
+        erc20_proxy="0x1dc4c1cefef38a777b15aa20260a54e584b16c48",
+        erc721_proxy="0x1d7022f5b17d2f8b695918fb48fa1089c9f85401",
+        zrx_token="0x871dd7c2b4b25e1aa18728e9d5f2af4c4e431f5c",
+        ether_token="0x0b1ba0af832d7c05fd64161e0db78e85978e8082",
+        asset_proxy_owner="0x34d402f14d58e001d8efbe6585051bf9706aa064",
+        forwarder="0xb69e673309512a9d726f87304c6984054f87a93b",
+        order_validator="0xe86bb98fcf9bff3512c74589b78fb168200cc546",
+    ),
+}
+"""A mapping from instances of NetworkId to instances of ContractAddresses.
+
+Addresses under NetworkId.Ganache are from our Ganache snapshot generated from
+migrations.
+
+>>> NETWORK_TO_ADDRESSES[NetworkId.MAINNET].exchange
+0x4f833a24e1f95d70f028921e27040ca56e09ab0b
+"""
diff --git a/python-packages/contract_addresses/src/zero_ex/contract_addresses/py.typed b/python-packages/contract_addresses/src/zero_ex/contract_addresses/py.typed
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/python-packages/contract_addresses/src/zero_ex/contract_addresses/py.typed
diff --git a/python-packages/contract_addresses/stubs/distutils/__init__.pyi b/python-packages/contract_addresses/stubs/distutils/__init__.pyi
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/python-packages/contract_addresses/stubs/distutils/__init__.pyi
diff --git a/python-packages/contract_addresses/stubs/distutils/command/__init__.pyi b/python-packages/contract_addresses/stubs/distutils/command/__init__.pyi
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/python-packages/contract_addresses/stubs/distutils/command/__init__.pyi
diff --git a/python-packages/contract_addresses/stubs/distutils/command/clean.pyi b/python-packages/contract_addresses/stubs/distutils/command/clean.pyi
new file mode 100644
index 000000000..46a42ddb1
--- /dev/null
+++ b/python-packages/contract_addresses/stubs/distutils/command/clean.pyi
@@ -0,0 +1,7 @@
+from distutils.core import Command
+
+class clean(Command):
+    def initialize_options(self: clean) -> None: ...
+    def finalize_options(self: clean) -> None: ...
+    def run(self: clean) -> None: ...
+    ...
diff --git a/python-packages/contract_addresses/stubs/setuptools/__init__.pyi b/python-packages/contract_addresses/stubs/setuptools/__init__.pyi
new file mode 100644
index 000000000..8ea8d32b7
--- /dev/null
+++ b/python-packages/contract_addresses/stubs/setuptools/__init__.pyi
@@ -0,0 +1,8 @@
+from distutils.dist import Distribution
+from typing import Any, List
+
+def setup(**attrs: Any) -> Distribution: ...
+
+class Command: ...
+
+def find_packages(where: str) -> List[str]: ...
diff --git a/python-packages/contract_addresses/stubs/setuptools/command/__init__.pyi b/python-packages/contract_addresses/stubs/setuptools/command/__init__.pyi
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/python-packages/contract_addresses/stubs/setuptools/command/__init__.pyi
diff --git a/python-packages/contract_addresses/stubs/setuptools/command/test.pyi b/python-packages/contract_addresses/stubs/setuptools/command/test.pyi
new file mode 100644
index 000000000..c5ec770ad
--- /dev/null
+++ b/python-packages/contract_addresses/stubs/setuptools/command/test.pyi
@@ -0,0 +1,3 @@
+from setuptools import Command
+
+class test(Command): ...
diff --git a/python-packages/contract_addresses/tox.ini b/python-packages/contract_addresses/tox.ini
new file mode 100644
index 000000000..aa1037ed7
--- /dev/null
+++ b/python-packages/contract_addresses/tox.ini
@@ -0,0 +1,12 @@
+# tox (https://tox.readthedocs.io/) is a tool for running tests
+# in multiple virtualenvs. This configuration file will run the
+# test suite on all supported python versions. To use it, "pip install tox"
+# and then run "tox" from this directory.
+
+[tox]
+envlist = py37
+
+[testenv]
+commands =
+    pip install -e .[dev]
+    python setup.py lint
diff --git a/python-packages/contract_artifacts/.discharge.json b/python-packages/contract_artifacts/.discharge.json
new file mode 100644
index 000000000..d9cb2a37b
--- /dev/null
+++ b/python-packages/contract_artifacts/.discharge.json
@@ -0,0 +1,13 @@
+{
+    "domain": "0x-contract-artifacts-py",
+    "build_command": "python setup.py build_sphinx",
+    "upload_directory": "build/docs/html",
+    "index_key": "index.html",
+    "error_key": "index.html",
+    "trailing_slashes": true,
+    "cache": 3600,
+    "aws_profile": "default",
+    "aws_region": "us-east-1",
+    "cdn": false,
+    "dns_configured": true
+}
diff --git a/python-packages/contract_artifacts/.pylintrc b/python-packages/contract_artifacts/.pylintrc
new file mode 100644
index 000000000..937bc6313
--- /dev/null
+++ b/python-packages/contract_artifacts/.pylintrc
@@ -0,0 +1,3 @@
+[MESSAGES CONTROL]
+disable=C0330,line-too-long,fixme,too-few-public-methods,too-many-ancestors
+# C0330 is "bad hanging indent". we use indents per `black`.
diff --git a/python-packages/contract_artifacts/README.md b/python-packages/contract_artifacts/README.md
new file mode 100644
index 000000000..caa6b5df4
--- /dev/null
+++ b/python-packages/contract_artifacts/README.md
@@ -0,0 +1,39 @@
+## 0x-contract-artifacts
+
+0x smart contract compilation artifacts
+
+Read the [documentation](http://0x-contract-artifacts-py.s3-website-us-east-1.amazonaws.com/)
+
+## Installing
+
+```bash
+pip install 0x-contract-artifacts
+```
+
+## Contributing
+
+We welcome improvements and fixes from the wider community! To report bugs within this package, please create an issue in this repository.
+
+Please read our [contribution guidelines](../../CONTRIBUTING.md) before getting started.
+
+### Install Code and Dependencies
+
+```bash
+pip install -e .[dev]
+```
+
+### Clean
+
+`./setup.py clean --all`
+
+### Lint
+
+`./setup.py lint`
+
+### Build Documentation
+
+`./setup.py build_sphinx`
+
+### More
+
+See `./setup.py --help-commands` for more info.
diff --git a/python-packages/contract_artifacts/setup.py b/python-packages/contract_artifacts/setup.py
new file mode 100755
index 000000000..8d93fc3fa
--- /dev/null
+++ b/python-packages/contract_artifacts/setup.py
@@ -0,0 +1,188 @@
+#!/usr/bin/env python
+
+"""setuptools module for contract_artifacts package."""
+
+import subprocess  # nosec
+from shutil import rmtree
+from os import environ, path
+from sys import argv
+
+from distutils.command.clean import clean
+import distutils.command.build_py
+from setuptools import find_packages, setup
+
+
+class LintCommand(distutils.command.build_py.build_py):
+    """Custom setuptools command class for running linters."""
+
+    description = "Run linters"
+
+    def run(self):
+        """Run linter shell commands."""
+        lint_commands = [
+            # formatter:
+            "black --line-length 79 --check --diff src setup.py".split(),
+            # style guide checker (formerly pep8):
+            "pycodestyle --show-source --show-pep8 src setup.py".split(),
+            # docstring style checker:
+            "pydocstyle src setup.py".split(),
+            # static type checker:
+            "mypy src setup.py".split(),
+            # security issue checker:
+            "bandit -r src ./setup.py".split(),
+            # HACK: ensure contract artifacts match the authoritative copies:
+            # this is a hack.  ideally we would symlink to the authoritative
+            # copies, but a problem with setuptools is preventing it from
+            # following symlinks when gathering package_data.  see
+            # https://github.com/pypa/setuptools/issues/415.
+            (
+                "diff src/zero_ex/contract_artifacts/artifacts"
+                + " ../../packages/contract-artifacts/artifacts"
+            ).split(),
+            # general linter:
+            "pylint src setup.py".split(),
+            # pylint takes relatively long to run, so it runs last, to enable
+            # fast failures.
+        ]
+
+        # tell mypy where to find interface stubs for 3rd party libs
+        environ["MYPYPATH"] = path.join(
+            path.dirname(path.realpath(argv[0])), "stubs"
+        )
+
+        for lint_command in lint_commands:
+            print(
+                "Running lint command `", " ".join(lint_command).strip(), "`"
+            )
+            subprocess.check_call(lint_command)  # nosec
+
+
+class CleanCommandExtension(clean):
+    """Custom command to do custom cleanup."""
+
+    def run(self):
+        """Run the regular clean, followed by our custom commands."""
+        super().run()
+        rmtree("dist", ignore_errors=True)
+        rmtree(".mypy_cache", ignore_errors=True)
+        rmtree(".tox", ignore_errors=True)
+        rmtree(".pytest_cache", ignore_errors=True)
+        rmtree("src/0x_contract_artifacts.egg-info", ignore_errors=True)
+
+
+class TestPublishCommand(distutils.command.build_py.build_py):
+    """Custom command to publish to test.pypi.org."""
+
+    description = (
+        "Publish dist/* to test.pypi.org. Run sdist & bdist_wheel first."
+    )
+
+    def run(self):
+        """Run twine to upload to test.pypi.org."""
+        subprocess.check_call(  # nosec
+            (
+                "twine upload --repository-url https://test.pypi.org/legacy/"
+                + " --verbose dist/*"
+            ).split()
+        )
+
+
+class PublishCommand(distutils.command.build_py.build_py):
+    """Custom command to publish to pypi.org."""
+
+    description = "Publish dist/* to pypi.org. Run sdist & bdist_wheel first."
+
+    def run(self):
+        """Run twine to upload to pypi.org."""
+        subprocess.check_call("twine upload dist/*".split())  # nosec
+
+
+class PublishDocsCommand(distutils.command.build_py.build_py):
+    """Custom command to publish docs to S3."""
+
+    description = (
+        "Publish docs to "
+        + "http://0x-contract-artifacts-py.s3-website-us-east-1.amazonaws.com/"
+    )
+
+    def run(self):
+        """Run npm package `discharge` to build & upload docs."""
+        subprocess.check_call("discharge deploy".split())  # nosec
+
+
+with open("README.md", "r") as file_handle:
+    README_MD = file_handle.read()
+
+
+setup(
+    name="0x-contract-artifacts",
+    version="2.0.0",
+    description="0x smart contract compilation artifacts",
+    long_description=README_MD,
+    long_description_content_type="text/markdown",
+    url=(
+        "https://github.com/0xproject/0x-monorepo/tree/development"
+        + "/python-packages/contract_artifacts"
+    ),
+    author="F. Eugene Aumson",
+    author_email="feuGeneA@users.noreply.github.com",
+    cmdclass={
+        "clean": CleanCommandExtension,
+        "lint": LintCommand,
+        "test_publish": TestPublishCommand,
+        "publish": PublishCommand,
+        "publish_docs": PublishDocsCommand,
+    },
+    install_requires=["mypy_extensions"],
+    extras_require={
+        "dev": [
+            "bandit",
+            "black",
+            "coverage",
+            "coveralls",
+            "mypy",
+            "mypy_extensions",
+            "pycodestyle",
+            "pydocstyle",
+            "pylint",
+            "pytest",
+            "sphinx",
+            "tox",
+            "twine",
+        ]
+    },
+    python_requires=">=3.6, <4",
+    package_data={"zero_ex.contract_artifacts": ["py.typed", "artifacts/*"]},
+    package_dir={"": "src"},
+    license="Apache 2.0",
+    keywords=(
+        "ethereum cryptocurrency 0x decentralized blockchain dex exchange"
+    ),
+    namespace_packages=["zero_ex"],
+    packages=find_packages("src"),
+    classifiers=[
+        "Development Status :: 5 - Production/Stable",
+        "Intended Audience :: Developers",
+        "Intended Audience :: Financial and Insurance Industry",
+        "License :: OSI Approved :: Apache Software License",
+        "Natural Language :: English",
+        "Operating System :: OS Independent",
+        "Programming Language :: Python",
+        "Programming Language :: Python :: 3 :: Only",
+        "Programming Language :: Python :: 3.6",
+        "Programming Language :: Python :: 3.7",
+        "Topic :: Internet :: WWW/HTTP",
+        "Topic :: Office/Business :: Financial",
+        "Topic :: Other/Nonlisted Topic",
+        "Topic :: Security :: Cryptography",
+        "Topic :: Software Development :: Libraries",
+        "Topic :: Utilities",
+    ],
+    zip_safe=False,  # required per mypy
+    command_options={
+        "build_sphinx": {
+            "source_dir": ("setup.py", "src"),
+            "build_dir": ("setup.py", "build/docs"),
+        }
+    },
+)
diff --git a/python-packages/contract_artifacts/src/conf.py b/python-packages/contract_artifacts/src/conf.py
new file mode 100644
index 000000000..2b0a97116
--- /dev/null
+++ b/python-packages/contract_artifacts/src/conf.py
@@ -0,0 +1,54 @@
+"""Configuration file for the Sphinx documentation builder."""
+
+# Reference: http://www.sphinx-doc.org/en/master/config
+
+from typing import List
+import pkg_resources
+
+
+# pylint: disable=invalid-name
+# because these variables are not named in upper case, as globals should be.
+
+project = "0x-contract-artifacts"
+# pylint: disable=redefined-builtin
+copyright = "2018, ZeroEx, Intl."
+author = "F. Eugene Aumson"
+version = pkg_resources.get_distribution("0x-contract-artifacts").version
+release = ""  # The full version, including alpha/beta/rc tags
+
+extensions = [
+    "sphinx.ext.autodoc",
+    "sphinx.ext.doctest",
+    "sphinx.ext.intersphinx",
+    "sphinx.ext.coverage",
+    "sphinx.ext.viewcode",
+]
+
+templates_path = ["doc_templates"]
+
+source_suffix = ".rst"
+# eg: source_suffix = [".rst", ".md"]
+
+master_doc = "index"  # The master toctree document.
+
+language = None
+
+exclude_patterns: List[str] = []
+
+# The name of the Pygments (syntax highlighting) style to use.
+pygments_style = None
+
+html_theme = "alabaster"
+
+html_static_path = ["doc_static"]
+# Add any paths that contain custom static files (such as style sheets) here,
+# relative to this directory. They are copied after the builtin static files,
+# so a file named "default.css" will overwrite the builtin "default.css".
+
+# Output file base name for HTML help builder.
+htmlhelp_basename = "contract_artifactspydoc"
+
+# -- Extension configuration:
+
+# Example configuration for intersphinx: refer to the Python standard library.
+intersphinx_mapping = {"https://docs.python.org/": None}
diff --git a/python-packages/contract_artifacts/src/doc_static/.gitkeep b/python-packages/contract_artifacts/src/doc_static/.gitkeep
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/python-packages/contract_artifacts/src/doc_static/.gitkeep
diff --git a/python-packages/contract_artifacts/src/index.rst b/python-packages/contract_artifacts/src/index.rst
new file mode 100644
index 000000000..d086ad288
--- /dev/null
+++ b/python-packages/contract_artifacts/src/index.rst
@@ -0,0 +1,18 @@
+.. source for the sphinx-generated build/docs/web/index.html
+
+Python zero_ex.contract_artifacts
+=================================
+
+.. toctree::
+   :maxdepth: 2
+   :caption: Contents:
+
+.. automodule:: zero_ex.contract_artifacts
+   :members:
+
+Indices and tables
+==================
+
+* :ref:`genindex`
+* :ref:`modindex`
+* :ref:`search`
diff --git a/python-packages/contract_artifacts/src/zero_ex/__init__.py b/python-packages/contract_artifacts/src/zero_ex/__init__.py
new file mode 100644
index 000000000..e90d833db
--- /dev/null
+++ b/python-packages/contract_artifacts/src/zero_ex/__init__.py
@@ -0,0 +1,2 @@
+"""0x Python API."""
+__import__("pkg_resources").declare_namespace(__name__)
diff --git a/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/__init__.py b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/__init__.py
new file mode 100644
index 000000000..18947ee3b
--- /dev/null
+++ b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/__init__.py
@@ -0,0 +1,35 @@
+"""0x smart contract compilation artifacts."""
+
+import json
+from typing import Dict
+from pkg_resources import resource_string
+
+
+class _ArtifactCache:
+    """A cache to facilitate lazy & singular loading of contract artifacts."""
+
+    _contract_name_to_abi: Dict[str, Dict] = {}  # class data, not instance
+
+    @classmethod
+    def contract_name_to_abi(cls, contract_name: str) -> Dict:
+        """Return the ABI for the given contract name.
+
+        First tries to get data from the class level storage
+        `_contract_name_to_abi`.  If it's not there, loads it from disk, stores
+        it in the class data (for the next caller), and then returns it.
+        """
+        try:
+            return cls._contract_name_to_abi[contract_name]
+        except KeyError:
+            cls._contract_name_to_abi[contract_name] = json.loads(
+                resource_string(
+                    "zero_ex.contract_artifacts",
+                    f"artifacts/{contract_name}.json",
+                )
+            )["compilerOutput"]["abi"]
+            return cls._contract_name_to_abi[contract_name]
+
+
+def abi_by_name(contract_name: str) -> Dict:
+    """Return the ABI for the named contract."""
+    return _ArtifactCache.contract_name_to_abi(contract_name)
diff --git a/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/AssetProxyOwner.json b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/AssetProxyOwner.json
new file mode 100644
index 000000000..e5fad3aef
--- /dev/null
+++ b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/AssetProxyOwner.json
@@ -0,0 +1,699 @@
+{
+    "schemaVersion": "2.0.0",
+    "contractName": "AssetProxyOwner",
+    "compilerOutput": {
+        "abi": [
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "owners",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "owner",
+                        "type": "address"
+                    }
+                ],
+                "name": "removeOwner",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "transactionId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "revokeConfirmation",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "name": "isOwner",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "name": "confirmations",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "transactionId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "executeRemoveAuthorizedAddressAtIndex",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "secondsTimeLocked",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "pending",
+                        "type": "bool"
+                    },
+                    {
+                        "name": "executed",
+                        "type": "bool"
+                    }
+                ],
+                "name": "getTransactionCount",
+                "outputs": [
+                    {
+                        "name": "count",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "assetProxyContract",
+                        "type": "address"
+                    },
+                    {
+                        "name": "isRegistered",
+                        "type": "bool"
+                    }
+                ],
+                "name": "registerAssetProxy",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "owner",
+                        "type": "address"
+                    }
+                ],
+                "name": "addOwner",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "transactionId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "isConfirmed",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_secondsTimeLocked",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "changeTimeLock",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "name": "isAssetProxyRegistered",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "transactionId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "getConfirmationCount",
+                "outputs": [
+                    {
+                        "name": "count",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "transactions",
+                "outputs": [
+                    {
+                        "name": "destination",
+                        "type": "address"
+                    },
+                    {
+                        "name": "value",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "data",
+                        "type": "bytes"
+                    },
+                    {
+                        "name": "executed",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "getOwners",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address[]"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "from",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "to",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "pending",
+                        "type": "bool"
+                    },
+                    {
+                        "name": "executed",
+                        "type": "bool"
+                    }
+                ],
+                "name": "getTransactionIds",
+                "outputs": [
+                    {
+                        "name": "_transactionIds",
+                        "type": "uint256[]"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "transactionId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "getConfirmations",
+                "outputs": [
+                    {
+                        "name": "_confirmations",
+                        "type": "address[]"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "transactionCount",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_required",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "changeRequirement",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "transactionId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "confirmTransaction",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "destination",
+                        "type": "address"
+                    },
+                    {
+                        "name": "value",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "data",
+                        "type": "bytes"
+                    }
+                ],
+                "name": "submitTransaction",
+                "outputs": [
+                    {
+                        "name": "transactionId",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "confirmationTimes",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "MAX_OWNER_COUNT",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "required",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "owner",
+                        "type": "address"
+                    },
+                    {
+                        "name": "newOwner",
+                        "type": "address"
+                    }
+                ],
+                "name": "replaceOwner",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "transactionId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "executeTransaction",
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+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "inputs": [
+                    {
+                        "name": "_owners",
+                        "type": "address[]"
+                    },
+                    {
+                        "name": "_assetProxyContracts",
+                        "type": "address[]"
+                    },
+                    {
+                        "name": "_required",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "_secondsTimeLocked",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "constructor"
+            },
+            {
+                "payable": true,
+                "stateMutability": "payable",
+                "type": "fallback"
+            },
+            {
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+                "inputs": [
+                    {
+                        "indexed": false,
+                        "name": "assetProxyContract",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "isRegistered",
+                        "type": "bool"
+                    }
+                ],
+                "name": "AssetProxyRegistration",
+                "type": "event"
+            },
+            {
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+                "inputs": [
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+                        "indexed": true,
+                        "name": "transactionId",
+                        "type": "uint256"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "confirmationTime",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "ConfirmationTimeSet",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
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+                        "indexed": false,
+                        "name": "secondsTimeLocked",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "TimeLockChange",
+                "type": "event"
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+            {
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+                        "name": "sender",
+                        "type": "address"
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+                    {
+                        "indexed": true,
+                        "name": "transactionId",
+                        "type": "uint256"
+                    }
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+                "name": "Confirmation",
+                "type": "event"
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+            {
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+                        "name": "sender",
+                        "type": "address"
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+                    {
+                        "indexed": true,
+                        "name": "transactionId",
+                        "type": "uint256"
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+                ],
+                "name": "Revocation",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "transactionId",
+                        "type": "uint256"
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+                "name": "Submission",
+                "type": "event"
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+                "inputs": [
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+                        "name": "transactionId",
+                        "type": "uint256"
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+                "name": "Execution",
+                "type": "event"
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+                        "name": "transactionId",
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+                ],
+                "name": "ExecutionFailure",
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+                        "name": "sender",
+                        "type": "address"
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+                    {
+                        "indexed": false,
+                        "name": "value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "Deposit",
+                "type": "event"
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+                "inputs": [
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+                        "indexed": true,
+                        "name": "owner",
+                        "type": "address"
+                    }
+                ],
+                "name": "OwnerAddition",
+                "type": "event"
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+                        "indexed": true,
+                        "name": "owner",
+                        "type": "address"
+                    }
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+                "name": "OwnerRemoval",
+                "type": "event"
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+                        "name": "required",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "RequirementChange",
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+            }
+        }
+    },
+    "networks": {}
+}
diff --git a/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/DummyERC20Token.json b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/DummyERC20Token.json
new file mode 100644
index 000000000..7b8e7c3a8
--- /dev/null
+++ b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/DummyERC20Token.json
@@ -0,0 +1,328 @@
+{
+    "schemaVersion": "2.0.0",
+    "contractName": "DummyERC20Token",
+    "compilerOutput": {
+        "abi": [
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "name",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "string"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_spender",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "approve",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "totalSupply",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "transferFrom",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "decimals",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_owner",
+                        "type": "address"
+                    }
+                ],
+                "name": "balanceOf",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "owner",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "symbol",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "string"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "mint",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "transfer",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_spender",
+                        "type": "address"
+                    }
+                ],
+                "name": "allowance",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_target",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "setBalance",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "newOwner",
+                        "type": "address"
+                    }
+                ],
+                "name": "transferOwnership",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "MAX_MINT_AMOUNT",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "inputs": [
+                    {
+                        "name": "_name",
+                        "type": "string"
+                    },
+                    {
+                        "name": "_symbol",
+                        "type": "string"
+                    },
+                    {
+                        "name": "_decimals",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "_totalSupply",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "constructor"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "Transfer",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_spender",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "Approval",
+                "type": "event"
+            }
+        ],
+        "evm": {
+            "bytecode": {
+                "linkReferences": {},
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+            }
+        }
+    },
+    "networks": {}
+}
diff --git a/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/DummyERC721Token.json b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/DummyERC721Token.json
new file mode 100644
index 000000000..7472a5a03
--- /dev/null
+++ b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/DummyERC721Token.json
@@ -0,0 +1,375 @@
+{
+    "schemaVersion": "2.0.0",
+    "contractName": "DummyERC721Token",
+    "compilerOutput": {
+        "abi": [
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "name",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "string"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "getApproved",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_approved",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "approve",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "transferFrom",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "mint",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "safeTransferFrom",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "ownerOf",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_owner",
+                        "type": "address"
+                    }
+                ],
+                "name": "balanceOf",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "owner",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "symbol",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "string"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "burn",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_operator",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_approved",
+                        "type": "bool"
+                    }
+                ],
+                "name": "setApprovalForAll",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "_data",
+                        "type": "bytes"
+                    }
+                ],
+                "name": "safeTransferFrom",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_operator",
+                        "type": "address"
+                    }
+                ],
+                "name": "isApprovedForAll",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "newOwner",
+                        "type": "address"
+                    }
+                ],
+                "name": "transferOwnership",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "inputs": [
+                    {
+                        "name": "_name",
+                        "type": "string"
+                    },
+                    {
+                        "name": "_symbol",
+                        "type": "string"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "constructor"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "Transfer",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_approved",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "Approval",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_operator",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "_approved",
+                        "type": "bool"
+                    }
+                ],
+                "name": "ApprovalForAll",
+                "type": "event"
+            }
+        ],
+        "evm": {
+            "bytecode": {
+                "linkReferences": {},
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+            }
+        }
+    },
+    "networks": {}
+}
diff --git a/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/DutchAuction.json b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/DutchAuction.json
new file mode 100644
index 000000000..3c1cb8c4c
--- /dev/null
+++ b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/DutchAuction.json
@@ -0,0 +1,310 @@
+{
+	"schemaVersion": "2.0.0",
+	"contractName": "DutchAuction",
+	"compilerOutput": {
+		"abi": [
+			{
+				"constant": false,
+				"inputs": [
+					{
+						"components": [
+							{
+								"name": "makerAddress",
+								"type": "address"
+							},
+							{
+								"name": "takerAddress",
+								"type": "address"
+							},
+							{
+								"name": "feeRecipientAddress",
+								"type": "address"
+							},
+							{
+								"name": "senderAddress",
+								"type": "address"
+							},
+							{
+								"name": "makerAssetAmount",
+								"type": "uint256"
+							},
+							{
+								"name": "takerAssetAmount",
+								"type": "uint256"
+							},
+							{
+								"name": "makerFee",
+								"type": "uint256"
+							},
+							{
+								"name": "takerFee",
+								"type": "uint256"
+							},
+							{
+								"name": "expirationTimeSeconds",
+								"type": "uint256"
+							},
+							{
+								"name": "salt",
+								"type": "uint256"
+							},
+							{
+								"name": "makerAssetData",
+								"type": "bytes"
+							},
+							{
+								"name": "takerAssetData",
+								"type": "bytes"
+							}
+						],
+						"name": "order",
+						"type": "tuple"
+					}
+				],
+				"name": "getAuctionDetails",
+				"outputs": [
+					{
+						"components": [
+							{
+								"name": "beginTimeSeconds",
+								"type": "uint256"
+							},
+							{
+								"name": "endTimeSeconds",
+								"type": "uint256"
+							},
+							{
+								"name": "beginAmount",
+								"type": "uint256"
+							},
+							{
+								"name": "endAmount",
+								"type": "uint256"
+							},
+							{
+								"name": "currentAmount",
+								"type": "uint256"
+							},
+							{
+								"name": "currentTimeSeconds",
+								"type": "uint256"
+							}
+						],
+						"name": "auctionDetails",
+						"type": "tuple"
+					}
+				],
+				"payable": false,
+				"stateMutability": "nonpayable",
+				"type": "function"
+			},
+			{
+				"constant": false,
+				"inputs": [
+					{
+						"components": [
+							{
+								"name": "makerAddress",
+								"type": "address"
+							},
+							{
+								"name": "takerAddress",
+								"type": "address"
+							},
+							{
+								"name": "feeRecipientAddress",
+								"type": "address"
+							},
+							{
+								"name": "senderAddress",
+								"type": "address"
+							},
+							{
+								"name": "makerAssetAmount",
+								"type": "uint256"
+							},
+							{
+								"name": "takerAssetAmount",
+								"type": "uint256"
+							},
+							{
+								"name": "makerFee",
+								"type": "uint256"
+							},
+							{
+								"name": "takerFee",
+								"type": "uint256"
+							},
+							{
+								"name": "expirationTimeSeconds",
+								"type": "uint256"
+							},
+							{
+								"name": "salt",
+								"type": "uint256"
+							},
+							{
+								"name": "makerAssetData",
+								"type": "bytes"
+							},
+							{
+								"name": "takerAssetData",
+								"type": "bytes"
+							}
+						],
+						"name": "buyOrder",
+						"type": "tuple"
+					},
+					{
+						"components": [
+							{
+								"name": "makerAddress",
+								"type": "address"
+							},
+							{
+								"name": "takerAddress",
+								"type": "address"
+							},
+							{
+								"name": "feeRecipientAddress",
+								"type": "address"
+							},
+							{
+								"name": "senderAddress",
+								"type": "address"
+							},
+							{
+								"name": "makerAssetAmount",
+								"type": "uint256"
+							},
+							{
+								"name": "takerAssetAmount",
+								"type": "uint256"
+							},
+							{
+								"name": "makerFee",
+								"type": "uint256"
+							},
+							{
+								"name": "takerFee",
+								"type": "uint256"
+							},
+							{
+								"name": "expirationTimeSeconds",
+								"type": "uint256"
+							},
+							{
+								"name": "salt",
+								"type": "uint256"
+							},
+							{
+								"name": "makerAssetData",
+								"type": "bytes"
+							},
+							{
+								"name": "takerAssetData",
+								"type": "bytes"
+							}
+						],
+						"name": "sellOrder",
+						"type": "tuple"
+					},
+					{
+						"name": "buySignature",
+						"type": "bytes"
+					},
+					{
+						"name": "sellSignature",
+						"type": "bytes"
+					}
+				],
+				"name": "matchOrders",
+				"outputs": [
+					{
+						"components": [
+							{
+								"components": [
+									{
+										"name": "makerAssetFilledAmount",
+										"type": "uint256"
+									},
+									{
+										"name": "takerAssetFilledAmount",
+										"type": "uint256"
+									},
+									{
+										"name": "makerFeePaid",
+										"type": "uint256"
+									},
+									{
+										"name": "takerFeePaid",
+										"type": "uint256"
+									}
+								],
+								"name": "left",
+								"type": "tuple"
+							},
+							{
+								"components": [
+									{
+										"name": "makerAssetFilledAmount",
+										"type": "uint256"
+									},
+									{
+										"name": "takerAssetFilledAmount",
+										"type": "uint256"
+									},
+									{
+										"name": "makerFeePaid",
+										"type": "uint256"
+									},
+									{
+										"name": "takerFeePaid",
+										"type": "uint256"
+									}
+								],
+								"name": "right",
+								"type": "tuple"
+							},
+							{
+								"name": "leftMakerAssetSpreadAmount",
+								"type": "uint256"
+							}
+						],
+						"name": "matchedFillResults",
+						"type": "tuple"
+					}
+				],
+				"payable": false,
+				"stateMutability": "nonpayable",
+				"type": "function"
+			},
+			{
+				"inputs": [
+					{
+						"name": "_exchange",
+						"type": "address"
+					}
+				],
+				"payable": false,
+				"stateMutability": "nonpayable",
+				"type": "constructor"
+			}
+		],
+		"evm": {
+			"bytecode": {
+				"linkReferences": {},
+				"object": 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0x100000000000000000000000000000000000000000000000000000000 PUSH1 0x0 CALLDATALOAD DIV AND PUSH4 0x2E9CD033 DUP2 EQ PUSH2 0x50 JUMPI DUP1 PUSH4 0x3C28D861 EQ PUSH2 0x86 JUMPI JUMPDEST PUSH1 0x0 DUP1 REVERT JUMPDEST CALLVALUE DUP1 ISZERO PUSH2 0x5C JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST POP PUSH2 0x70 PUSH2 0x6B CALLDATASIZE PUSH1 0x4 PUSH2 0xB25 JUMP JUMPDEST PUSH2 0xB3 JUMP JUMPDEST PUSH1 0x40 MLOAD PUSH2 0x7D SWAP2 SWAP1 PUSH2 0x110A JUMP JUMPDEST PUSH1 0x40 MLOAD DUP1 SWAP2 SUB SWAP1 RETURN JUMPDEST CALLVALUE DUP1 ISZERO PUSH2 0x92 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST POP PUSH2 0xA6 PUSH2 0xA1 CALLDATASIZE PUSH1 0x4 PUSH2 0xB5A JUMP JUMPDEST PUSH2 0x29C JUMP JUMPDEST PUSH1 0x40 MLOAD PUSH2 0x7D SWAP2 SWAP1 PUSH2 0x1118 JUMP JUMPDEST PUSH2 0xBB PUSH2 0x7B1 JUMP JUMPDEST PUSH2 0x140 DUP3 ADD MLOAD MLOAD PUSH1 0x0 DUP1 DUP1 DUP1 DUP1 DUP1 DUP1 PUSH1 0x64 DUP9 LT ISZERO PUSH2 0x10E JUMPI PUSH1 0x40 MLOAD PUSH32 0x8C379A000000000000000000000000000000000000000000000000000000000 DUP2 MSTORE PUSH1 0x4 ADD PUSH2 0x105 SWAP1 PUSH2 0x10AA JUMP JUMPDEST PUSH1 0x40 MLOAD DUP1 SWAP2 SUB SWAP1 REVERT JUMPDEST PUSH2 0x140 DUP11 ADD MLOAD PUSH2 0x146 SWAP1 PUSH32 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFC0 DUP11 ADD PUSH4 0xFFFFFFFF PUSH2 0x5F2 AND JUMP JUMPDEST PUSH2 0x140 DUP12 ADD MLOAD SWAP1 SWAP8 POP PUSH2 0x181 SWAP1 PUSH32 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE0 DUP11 ADD PUSH4 0xFFFFFFFF PUSH2 0x5F2 AND JUMP JUMPDEST SWAP6 POP DUP7 DUP11 PUSH2 0x100 ADD MLOAD GT ISZERO ISZERO PUSH2 0x1C3 JUMPI PUSH1 0x40 MLOAD PUSH32 0x8C379A000000000000000000000000000000000000000000000000000000000 DUP2 MSTORE PUSH1 0x4 ADD PUSH2 0x105 SWAP1 PUSH2 0x10BA JUMP JUMPDEST DUP7 DUP11 PUSH2 0x100 ADD MLOAD SUB SWAP5 POP DUP10 PUSH1 0xA0 ADD MLOAD SWAP4 POP DUP4 DUP7 GT ISZERO ISZERO PUSH2 0x20F JUMPI PUSH1 0x40 MLOAD PUSH32 0x8C379A000000000000000000000000000000000000000000000000000000000 DUP2 MSTORE PUSH1 0x4 ADD PUSH2 0x105 SWAP1 PUSH2 0x10FA JUMP JUMPDEST POP POP POP DUP4 DUP7 MSTORE PUSH2 0x100 DUP8 ADD DUP1 MLOAD PUSH1 0x20 DUP9 ADD MSTORE PUSH1 0x40 DUP8 ADD DUP5 SWAP1 MSTORE PUSH1 0x60 DUP8 ADD DUP3 SWAP1 MSTORE TIMESTAMP PUSH1 0xA0 DUP9 ADD DUP2 SWAP1 MSTORE SWAP1 MLOAD DUP3 DUP6 SUB SWAP2 SWAP1 DUP2 SWAP1 SUB DUP7 DUP3 LT ISZERO PUSH2 0x255 JUMPI PUSH1 0x80 DUP10 ADD DUP7 SWAP1 MSTORE PUSH2 0x28F JUMP JUMPDEST PUSH2 0x100 DUP11 ADD MLOAD DUP3 LT PUSH2 0x26D JUMPI PUSH1 0x80 DUP10 ADD DUP5 SWAP1 MSTORE PUSH2 0x28F JUMP JUMPDEST PUSH2 0x289 DUP5 PUSH2 0x284 PUSH2 0x27E DUP5 DUP8 PUSH2 0x607 JUMP JUMPDEST DUP9 PUSH2 0x66D JUMP JUMPDEST PUSH2 0x684 JUMP JUMPDEST PUSH1 0x80 DUP11 ADD MSTORE JUMPDEST POP POP POP POP POP POP POP POP SWAP2 SWAP1 POP JUMP JUMPDEST PUSH2 0x2A4 PUSH2 0x7E8 JUMP JUMPDEST PUSH2 0x2AC PUSH2 0x7B1 JUMP JUMPDEST PUSH1 0x0 PUSH1 0x60 PUSH1 0x0 DUP1 PUSH1 0x0 PUSH2 0x2BE DUP11 PUSH2 0xB3 JUMP JUMPDEST DUP1 MLOAD PUSH1 0xA0 DUP3 ADD MLOAD SWAP2 SWAP8 POP GT ISZERO PUSH2 0x300 JUMPI PUSH1 0x40 MLOAD PUSH32 0x8C379A000000000000000000000000000000000000000000000000000000000 DUP2 MSTORE PUSH1 0x4 ADD PUSH2 0x105 SWAP1 PUSH2 0x10EA JUMP JUMPDEST PUSH1 0xA0 DUP7 ADD MLOAD PUSH2 0x100 DUP12 ADD MLOAD GT PUSH2 0x342 JUMPI PUSH1 0x40 MLOAD PUSH32 0x8C379A000000000000000000000000000000000000000000000000000000000 DUP2 MSTORE PUSH1 0x4 ADD PUSH2 0x105 SWAP1 PUSH2 0x10CA JUMP JUMPDEST PUSH1 0x80 DUP1 DUP8 ADD MLOAD SWAP1 DUP13 ADD MLOAD LT ISZERO PUSH2 0x384 JUMPI PUSH1 0x40 MLOAD PUSH32 0x8C379A000000000000000000000000000000000000000000000000000000000 DUP2 MSTORE PUSH1 0x4 ADD PUSH2 0x105 SWAP1 PUSH2 0x10FA JUMP JUMPDEST PUSH1 0x0 SLOAD PUSH1 0x40 MLOAD PUSH32 0x3C28D86100000000000000000000000000000000000000000000000000000000 DUP2 MSTORE PUSH20 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF SWAP1 SWAP2 AND SWAP1 PUSH4 0x3C28D861 SWAP1 PUSH2 0x3E0 SWAP1 DUP15 SWAP1 DUP15 SWAP1 DUP15 SWAP1 DUP15 SWAP1 PUSH1 0x4 ADD PUSH2 0x1127 JUMP JUMPDEST PUSH2 0x120 PUSH1 0x40 MLOAD DUP1 DUP4 SUB DUP2 PUSH1 0x0 DUP8 DUP1 EXTCODESIZE ISZERO DUP1 ISZERO PUSH2 0x3FB JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST POP GAS CALL ISZERO DUP1 ISZERO PUSH2 0x40F JUMPI RETURNDATASIZE PUSH1 0x0 DUP1 RETURNDATACOPY RETURNDATASIZE PUSH1 0x0 REVERT JUMPDEST POP POP POP POP PUSH1 0x40 MLOAD RETURNDATASIZE PUSH1 0x1F NOT PUSH1 0x1F DUP3 ADD AND DUP3 ADD DUP1 PUSH1 0x40 MSTORE POP PUSH2 0x433 SWAP2 SWAP1 DUP2 ADD SWAP1 PUSH2 0xB06 JUMP JUMPDEST SWAP7 POP DUP7 PUSH1 0x40 ADD MLOAD SWAP5 POP PUSH1 0x0 DUP6 GT ISZERO PUSH2 0x5E4 JUMPI PUSH2 0x160 DUP11 ADD MLOAD SWAP4 POP PUSH2 0x45E DUP5 PUSH1 0x10 PUSH4 0xFFFFFFFF PUSH2 0x6C3 AND JUMP JUMPDEST SWAP3 POP PUSH2 0x472 DUP12 PUSH1 0x80 ADD MLOAD DUP8 PUSH1 0x80 ADD MLOAD PUSH2 0x724 JUMP JUMPDEST SWAP2 POP PUSH2 0x47E DUP6 DUP4 PUSH2 0x724 JUMP JUMPDEST SWAP1 POP PUSH1 0x0 DUP2 GT ISZERO PUSH2 0x532 JUMPI DUP10 MLOAD PUSH1 0x40 MLOAD PUSH32 0xA9059CBB00000000000000000000000000000000000000000000000000000000 DUP2 MSTORE PUSH20 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF DUP6 AND SWAP2 PUSH4 0xA9059CBB SWAP2 PUSH2 0x4DE SWAP2 SWAP1 DUP6 SWAP1 PUSH1 0x4 ADD PUSH2 0x105F JUMP JUMPDEST PUSH1 0x20 PUSH1 0x40 MLOAD DUP1 DUP4 SUB DUP2 PUSH1 0x0 DUP8 DUP1 EXTCODESIZE ISZERO DUP1 ISZERO PUSH2 0x4F8 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST POP GAS CALL ISZERO DUP1 ISZERO PUSH2 0x50C JUMPI RETURNDATASIZE PUSH1 0x0 DUP1 RETURNDATACOPY RETURNDATASIZE PUSH1 0x0 REVERT JUMPDEST POP POP POP POP PUSH1 0x40 MLOAD RETURNDATASIZE PUSH1 0x1F NOT PUSH1 0x1F DUP3 ADD AND DUP3 ADD DUP1 PUSH1 0x40 MSTORE POP PUSH2 0x530 SWAP2 SWAP1 DUP2 ADD SWAP1 PUSH2 0xAE0 JUMP JUMPDEST POP JUMPDEST PUSH1 0x0 DUP3 GT ISZERO PUSH2 0x5E4 JUMPI DUP11 MLOAD PUSH1 0x40 MLOAD PUSH32 0xA9059CBB00000000000000000000000000000000000000000000000000000000 DUP2 MSTORE PUSH20 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF DUP6 AND SWAP2 PUSH4 0xA9059CBB SWAP2 PUSH2 0x590 SWAP2 SWAP1 DUP7 SWAP1 PUSH1 0x4 ADD PUSH2 0x105F JUMP JUMPDEST PUSH1 0x20 PUSH1 0x40 MLOAD DUP1 DUP4 SUB DUP2 PUSH1 0x0 DUP8 DUP1 EXTCODESIZE ISZERO DUP1 ISZERO PUSH2 0x5AA JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST POP GAS CALL ISZERO DUP1 ISZERO PUSH2 0x5BE JUMPI RETURNDATASIZE PUSH1 0x0 DUP1 RETURNDATACOPY RETURNDATASIZE PUSH1 0x0 REVERT JUMPDEST POP POP POP POP PUSH1 0x40 MLOAD RETURNDATASIZE PUSH1 0x1F NOT PUSH1 0x1F DUP3 ADD AND DUP3 ADD DUP1 PUSH1 0x40 MSTORE POP PUSH2 0x5E2 SWAP2 SWAP1 DUP2 ADD SWAP1 PUSH2 0xAE0 JUMP JUMPDEST POP JUMPDEST POP POP POP POP POP POP SWAP5 SWAP4 POP POP POP POP JUMP JUMPDEST PUSH1 0x0 PUSH2 0x5FE DUP4 DUP4 PUSH2 0x766 JUMP JUMPDEST SWAP1 POP JUMPDEST SWAP3 SWAP2 POP POP JUMP JUMPDEST PUSH1 0x0 DUP1 DUP4 ISZERO ISZERO PUSH2 0x61A JUMPI PUSH1 0x0 SWAP2 POP PUSH2 0x666 JUMP JUMPDEST POP DUP3 DUP3 MUL DUP3 DUP5 DUP3 DUP2 ISZERO ISZERO PUSH2 0x62A JUMPI INVALID JUMPDEST DIV EQ PUSH2 0x662 JUMPI PUSH1 0x40 MLOAD PUSH32 0x8C379A000000000000000000000000000000000000000000000000000000000 DUP2 MSTORE PUSH1 0x4 ADD PUSH2 0x105 SWAP1 PUSH2 0x109A JUMP JUMPDEST DUP1 SWAP2 POP JUMPDEST POP SWAP3 SWAP2 POP POP JUMP JUMPDEST PUSH1 0x0 DUP1 DUP3 DUP5 DUP2 ISZERO ISZERO PUSH2 0x67B JUMPI INVALID JUMPDEST DIV SWAP5 SWAP4 POP POP POP POP JUMP JUMPDEST PUSH1 0x0 DUP3 DUP3 ADD DUP4 DUP2 LT ISZERO PUSH2 0x662 JUMPI PUSH1 0x40 MLOAD PUSH32 0x8C379A000000000000000000000000000000000000000000000000000000000 DUP2 MSTORE PUSH1 0x4 ADD PUSH2 0x105 SWAP1 PUSH2 0x109A JUMP JUMPDEST PUSH1 0x0 DUP2 PUSH1 0x14 ADD DUP4 MLOAD LT ISZERO ISZERO ISZERO PUSH2 0x705 JUMPI PUSH1 0x40 MLOAD PUSH32 0x8C379A000000000000000000000000000000000000000000000000000000000 DUP2 MSTORE PUSH1 0x4 ADD PUSH2 0x105 SWAP1 PUSH2 0x10DA JUMP JUMPDEST POP ADD PUSH1 0x14 ADD MLOAD PUSH20 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF AND SWAP1 JUMP JUMPDEST PUSH1 0x0 DUP3 DUP3 GT ISZERO PUSH2 0x760 JUMPI PUSH1 0x40 MLOAD PUSH32 0x8C379A000000000000000000000000000000000000000000000000000000000 DUP2 MSTORE PUSH1 0x4 ADD PUSH2 0x105 SWAP1 PUSH2 0x107A JUMP JUMPDEST POP SWAP1 SUB SWAP1 JUMP JUMPDEST PUSH1 0x0 DUP2 PUSH1 0x20 ADD DUP4 MLOAD LT ISZERO ISZERO ISZERO PUSH2 0x7A8 JUMPI PUSH1 0x40 MLOAD PUSH32 0x8C379A000000000000000000000000000000000000000000000000000000000 DUP2 MSTORE PUSH1 0x4 ADD PUSH2 0x105 SWAP1 PUSH2 0x108A JUMP JUMPDEST POP ADD PUSH1 0x20 ADD MLOAD SWAP1 JUMP JUMPDEST PUSH1 0xC0 PUSH1 0x40 MLOAD SWAP1 DUP2 ADD PUSH1 0x40 MSTORE DUP1 PUSH1 0x0 DUP2 MSTORE PUSH1 0x20 ADD PUSH1 0x0 DUP2 MSTORE PUSH1 0x20 ADD PUSH1 0x0 DUP2 MSTORE PUSH1 0x20 ADD PUSH1 0x0 DUP2 MSTORE PUSH1 0x20 ADD PUSH1 0x0 DUP2 MSTORE PUSH1 0x20 ADD PUSH1 0x0 DUP2 MSTORE POP SWAP1 JUMP JUMPDEST PUSH2 0x120 PUSH1 0x40 MLOAD SWAP1 DUP2 ADD PUSH1 0x40 MSTORE DUP1 PUSH2 0x7FD PUSH2 0x817 JUMP JUMPDEST DUP2 MSTORE PUSH1 0x20 ADD PUSH2 0x80A PUSH2 0x817 JUMP JUMPDEST DUP2 MSTORE PUSH1 0x20 ADD PUSH1 0x0 DUP2 MSTORE POP SWAP1 JUMP JUMPDEST PUSH1 0x80 PUSH1 0x40 MLOAD SWAP1 DUP2 ADD PUSH1 0x40 MSTORE DUP1 PUSH1 0x0 DUP2 MSTORE PUSH1 0x20 ADD PUSH1 0x0 DUP2 MSTORE PUSH1 0x20 ADD PUSH1 0x0 DUP2 MSTORE PUSH1 0x20 ADD PUSH1 0x0 DUP2 MSTORE POP SWAP1 JUMP JUMPDEST PUSH1 0x0 PUSH2 0x84C DUP3 CALLDATALOAD PUSH2 0x11EF JUMP JUMPDEST SWAP4 SWAP3 POP POP POP JUMP JUMPDEST PUSH1 0x0 PUSH2 0x84C DUP3 MLOAD PUSH2 0x120B JUMP JUMPDEST PUSH1 0x0 PUSH1 0x1F DUP3 ADD DUP4 SGT PUSH2 0x870 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST DUP2 CALLDATALOAD PUSH2 0x883 PUSH2 0x87E DUP3 PUSH2 0x11A5 JUMP JUMPDEST PUSH2 0x117E JUMP JUMPDEST SWAP2 POP DUP1 DUP3 MSTORE PUSH1 0x20 DUP4 ADD PUSH1 0x20 DUP4 ADD DUP6 DUP4 DUP4 ADD GT ISZERO PUSH2 0x89F JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH2 0x8AA DUP4 DUP3 DUP5 PUSH2 0x1210 JUMP JUMPDEST POP POP POP SWAP3 SWAP2 POP POP JUMP JUMPDEST PUSH1 0x0 PUSH1 0x80 DUP3 DUP5 SUB SLT ISZERO PUSH2 0x8C5 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH2 0x8CF PUSH1 0x80 PUSH2 0x117E JUMP JUMPDEST SWAP1 POP PUSH1 0x0 PUSH2 0x8DD DUP5 DUP5 PUSH2 0xAD4 JUMP JUMPDEST DUP3 MSTORE POP PUSH1 0x20 PUSH2 0x8EE DUP5 DUP5 DUP4 ADD PUSH2 0xAD4 JUMP JUMPDEST PUSH1 0x20 DUP4 ADD MSTORE POP PUSH1 0x40 PUSH2 0x902 DUP5 DUP3 DUP6 ADD PUSH2 0xAD4 JUMP JUMPDEST PUSH1 0x40 DUP4 ADD MSTORE POP PUSH1 0x60 PUSH2 0x916 DUP5 DUP3 DUP6 ADD PUSH2 0xAD4 JUMP JUMPDEST PUSH1 0x60 DUP4 ADD MSTORE POP SWAP3 SWAP2 POP POP JUMP JUMPDEST PUSH1 0x0 PUSH2 0x120 DUP3 DUP5 SUB SLT ISZERO PUSH2 0x935 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH2 0x93F PUSH1 0x60 PUSH2 0x117E JUMP JUMPDEST SWAP1 POP PUSH1 0x0 PUSH2 0x94D DUP5 DUP5 PUSH2 0x8B3 JUMP JUMPDEST DUP3 MSTORE POP PUSH1 0x80 PUSH2 0x95E DUP5 DUP5 DUP4 ADD PUSH2 0x8B3 JUMP JUMPDEST PUSH1 0x20 DUP4 ADD MSTORE POP PUSH2 0x100 PUSH2 0x973 DUP5 DUP3 DUP6 ADD PUSH2 0xAD4 JUMP JUMPDEST PUSH1 0x40 DUP4 ADD MSTORE POP SWAP3 SWAP2 POP POP JUMP JUMPDEST PUSH1 0x0 PUSH2 0x180 DUP3 DUP5 SUB SLT ISZERO PUSH2 0x992 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH2 0x99D PUSH2 0x180 PUSH2 0x117E JUMP JUMPDEST SWAP1 POP PUSH1 0x0 PUSH2 0x9AB DUP5 DUP5 PUSH2 0x840 JUMP JUMPDEST DUP3 MSTORE POP PUSH1 0x20 PUSH2 0x9BC DUP5 DUP5 DUP4 ADD PUSH2 0x840 JUMP JUMPDEST PUSH1 0x20 DUP4 ADD MSTORE POP PUSH1 0x40 PUSH2 0x9D0 DUP5 DUP3 DUP6 ADD PUSH2 0x840 JUMP JUMPDEST PUSH1 0x40 DUP4 ADD MSTORE POP PUSH1 0x60 PUSH2 0x9E4 DUP5 DUP3 DUP6 ADD PUSH2 0x840 JUMP JUMPDEST PUSH1 0x60 DUP4 ADD MSTORE POP PUSH1 0x80 PUSH2 0x9F8 DUP5 DUP3 DUP6 ADD PUSH2 0xAC8 JUMP JUMPDEST PUSH1 0x80 DUP4 ADD MSTORE POP PUSH1 0xA0 PUSH2 0xA0C DUP5 DUP3 DUP6 ADD PUSH2 0xAC8 JUMP JUMPDEST PUSH1 0xA0 DUP4 ADD MSTORE POP PUSH1 0xC0 PUSH2 0xA20 DUP5 DUP3 DUP6 ADD PUSH2 0xAC8 JUMP JUMPDEST PUSH1 0xC0 DUP4 ADD MSTORE POP PUSH1 0xE0 PUSH2 0xA34 DUP5 DUP3 DUP6 ADD PUSH2 0xAC8 JUMP JUMPDEST PUSH1 0xE0 DUP4 ADD MSTORE POP PUSH2 0x100 PUSH2 0xA49 DUP5 DUP3 DUP6 ADD PUSH2 0xAC8 JUMP JUMPDEST PUSH2 0x100 DUP4 ADD MSTORE POP PUSH2 0x120 PUSH2 0xA5F DUP5 DUP3 DUP6 ADD PUSH2 0xAC8 JUMP JUMPDEST PUSH2 0x120 DUP4 ADD MSTORE POP PUSH2 0x140 DUP3 ADD CALLDATALOAD PUSH8 0xFFFFFFFFFFFFFFFF DUP2 GT ISZERO PUSH2 0xA81 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH2 0xA8D DUP5 DUP3 DUP6 ADD PUSH2 0x85F JUMP JUMPDEST PUSH2 0x140 DUP4 ADD MSTORE POP PUSH2 0x160 DUP3 ADD CALLDATALOAD PUSH8 0xFFFFFFFFFFFFFFFF DUP2 GT ISZERO PUSH2 0xAAF JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH2 0xABB DUP5 DUP3 DUP6 ADD PUSH2 0x85F JUMP JUMPDEST PUSH2 0x160 DUP4 ADD MSTORE POP SWAP3 SWAP2 POP POP JUMP JUMPDEST PUSH1 0x0 PUSH2 0x84C DUP3 CALLDATALOAD PUSH2 0x1208 JUMP JUMPDEST PUSH1 0x0 PUSH2 0x84C DUP3 MLOAD PUSH2 0x1208 JUMP JUMPDEST PUSH1 0x0 PUSH1 0x20 DUP3 DUP5 SUB SLT ISZERO PUSH2 0xAF2 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH1 0x0 PUSH2 0xAFE DUP5 DUP5 PUSH2 0x853 JUMP JUMPDEST SWAP5 SWAP4 POP POP POP POP JUMP JUMPDEST PUSH1 0x0 PUSH2 0x120 DUP3 DUP5 SUB SLT ISZERO PUSH2 0xB19 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH1 0x0 PUSH2 0xAFE DUP5 DUP5 PUSH2 0x922 JUMP JUMPDEST PUSH1 0x0 PUSH1 0x20 DUP3 DUP5 SUB SLT ISZERO PUSH2 0xB37 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST DUP2 CALLDATALOAD PUSH8 0xFFFFFFFFFFFFFFFF DUP2 GT ISZERO PUSH2 0xB4E JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH2 0xAFE DUP5 DUP3 DUP6 ADD PUSH2 0x97F JUMP JUMPDEST PUSH1 0x0 DUP1 PUSH1 0x0 DUP1 PUSH1 0x80 DUP6 DUP8 SUB SLT ISZERO PUSH2 0xB70 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST DUP5 CALLDATALOAD PUSH8 0xFFFFFFFFFFFFFFFF DUP2 GT ISZERO PUSH2 0xB87 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH2 0xB93 DUP8 DUP3 DUP9 ADD PUSH2 0x97F JUMP JUMPDEST SWAP5 POP POP PUSH1 0x20 DUP6 ADD CALLDATALOAD PUSH8 0xFFFFFFFFFFFFFFFF DUP2 GT ISZERO PUSH2 0xBB0 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH2 0xBBC DUP8 DUP3 DUP9 ADD PUSH2 0x97F JUMP JUMPDEST SWAP4 POP POP PUSH1 0x40 DUP6 ADD CALLDATALOAD PUSH8 0xFFFFFFFFFFFFFFFF DUP2 GT ISZERO PUSH2 0xBD9 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH2 0xBE5 DUP8 DUP3 DUP9 ADD PUSH2 0x85F JUMP JUMPDEST SWAP3 POP POP PUSH1 0x60 DUP6 ADD CALLDATALOAD PUSH8 0xFFFFFFFFFFFFFFFF DUP2 GT ISZERO PUSH2 0xC02 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH2 0xC0E DUP8 DUP3 DUP9 ADD PUSH2 0x85F JUMP JUMPDEST SWAP2 POP POP SWAP3 SWAP6 SWAP2 SWAP5 POP SWAP3 POP JUMP JUMPDEST PUSH2 0xC23 DUP2 PUSH2 0x11EF JUMP JUMPDEST DUP3 MSTORE POP POP JUMP JUMPDEST PUSH1 0x0 PUSH2 0xC34 DUP3 PUSH2 0x11EB JUMP JUMPDEST DUP1 DUP5 MSTORE PUSH2 0xC48 DUP2 PUSH1 0x20 DUP7 ADD PUSH1 0x20 DUP7 ADD PUSH2 0x121C JUMP JUMPDEST PUSH2 0xC51 DUP2 PUSH2 0x1248 JUMP JUMPDEST SWAP1 SWAP4 ADD PUSH1 0x20 ADD SWAP4 SWAP3 POP POP POP JUMP JUMPDEST PUSH1 0x11 DUP2 MSTORE PUSH32 0x55494E543235365F554E444552464C4F57000000000000000000000000000000 PUSH1 0x20 DUP3 ADD MSTORE PUSH1 0x40 ADD SWAP1 JUMP JUMPDEST PUSH1 0x26 DUP2 MSTORE PUSH32 0x475245415445525F4F525F455155414C5F544F5F33325F4C454E4754485F5245 PUSH1 0x20 DUP3 ADD MSTORE PUSH32 0x5155495245440000000000000000000000000000000000000000000000000000 PUSH1 0x40 DUP3 ADD MSTORE PUSH1 0x60 ADD SWAP1 JUMP JUMPDEST PUSH1 0x10 DUP2 MSTORE PUSH32 0x55494E543235365F4F564552464C4F5700000000000000000000000000000000 PUSH1 0x20 DUP3 ADD MSTORE PUSH1 0x40 ADD SWAP1 JUMP JUMPDEST PUSH1 0x12 DUP2 MSTORE PUSH32 0x494E56414C49445F41535345545F444154410000000000000000000000000000 PUSH1 0x20 DUP3 ADD MSTORE PUSH1 0x40 ADD SWAP1 JUMP JUMPDEST PUSH1 0x12 DUP2 MSTORE PUSH32 0x494E56414C49445F424547494E5F54494D450000000000000000000000000000 PUSH1 0x20 DUP3 ADD MSTORE PUSH1 0x40 ADD SWAP1 JUMP JUMPDEST PUSH1 0xF DUP2 MSTORE PUSH32 0x41554354494F4E5F455850495245440000000000000000000000000000000000 PUSH1 0x20 DUP3 ADD MSTORE PUSH1 0x40 ADD SWAP1 JUMP JUMPDEST PUSH1 0x26 DUP2 MSTORE PUSH32 0x475245415445525F4F525F455155414C5F544F5F32305F4C454E4754485F5245 PUSH1 0x20 DUP3 ADD MSTORE PUSH32 0x5155495245440000000000000000000000000000000000000000000000000000 PUSH1 0x40 DUP3 ADD MSTORE PUSH1 0x60 ADD SWAP1 JUMP JUMPDEST PUSH1 0x13 DUP2 MSTORE PUSH32 0x41554354494F4E5F4E4F545F5354415254454400000000000000000000000000 PUSH1 0x20 DUP3 ADD MSTORE PUSH1 0x40 ADD SWAP1 JUMP JUMPDEST PUSH1 0xE DUP2 MSTORE PUSH32 0x494E56414C49445F414D4F554E54000000000000000000000000000000000000 PUSH1 0x20 DUP3 ADD MSTORE PUSH1 0x40 ADD SWAP1 JUMP JUMPDEST DUP1 MLOAD PUSH1 0xC0 DUP4 ADD SWAP1 PUSH2 0xE6B DUP5 DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH1 0x20 DUP3 ADD MLOAD PUSH2 0xE7E PUSH1 0x20 DUP6 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH1 0x40 DUP3 ADD MLOAD PUSH2 0xE91 PUSH1 0x40 DUP6 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH1 0x60 DUP3 ADD MLOAD PUSH2 0xEA4 PUSH1 0x60 DUP6 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH1 0x80 DUP3 ADD MLOAD PUSH2 0xEB7 PUSH1 0x80 DUP6 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH1 0xA0 DUP3 ADD MLOAD PUSH2 0xECA PUSH1 0xA0 DUP6 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST POP POP POP POP JUMP JUMPDEST DUP1 MLOAD PUSH1 0x80 DUP4 ADD SWAP1 PUSH2 0xEE1 DUP5 DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH1 0x20 DUP3 ADD MLOAD PUSH2 0xEF4 PUSH1 0x20 DUP6 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH1 0x40 DUP3 ADD MLOAD PUSH2 0xF07 PUSH1 0x40 DUP6 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH1 0x60 DUP3 ADD MLOAD PUSH2 0xECA PUSH1 0x60 DUP6 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST DUP1 MLOAD PUSH2 0x120 DUP4 ADD SWAP1 PUSH2 0xF2C DUP5 DUP3 PUSH2 0xED0 JUMP JUMPDEST POP PUSH1 0x20 DUP3 ADD MLOAD PUSH2 0xF3F PUSH1 0x80 DUP6 ADD DUP3 PUSH2 0xED0 JUMP JUMPDEST POP PUSH1 0x40 DUP3 ADD MLOAD PUSH2 0xECA PUSH2 0x100 DUP6 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST DUP1 MLOAD PUSH1 0x0 SWAP1 PUSH2 0x180 DUP5 ADD SWAP1 PUSH2 0xF68 DUP6 DUP3 PUSH2 0xC1A JUMP JUMPDEST POP PUSH1 0x20 DUP4 ADD MLOAD PUSH2 0xF7B PUSH1 0x20 DUP7 ADD DUP3 PUSH2 0xC1A JUMP JUMPDEST POP PUSH1 0x40 DUP4 ADD MLOAD PUSH2 0xF8E PUSH1 0x40 DUP7 ADD DUP3 PUSH2 0xC1A JUMP JUMPDEST POP PUSH1 0x60 DUP4 ADD MLOAD PUSH2 0xFA1 PUSH1 0x60 DUP7 ADD DUP3 PUSH2 0xC1A JUMP JUMPDEST POP PUSH1 0x80 DUP4 ADD MLOAD PUSH2 0xFB4 PUSH1 0x80 DUP7 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH1 0xA0 DUP4 ADD MLOAD PUSH2 0xFC7 PUSH1 0xA0 DUP7 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH1 0xC0 DUP4 ADD MLOAD PUSH2 0xFDA PUSH1 0xC0 DUP7 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH1 0xE0 DUP4 ADD MLOAD PUSH2 0xFED PUSH1 0xE0 DUP7 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH2 0x100 DUP4 ADD MLOAD PUSH2 0x1002 PUSH2 0x100 DUP7 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH2 0x120 DUP4 ADD MLOAD PUSH2 0x1017 PUSH2 0x120 DUP7 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH2 0x140 DUP4 ADD MLOAD DUP5 DUP3 SUB PUSH2 0x140 DUP7 ADD MSTORE PUSH2 0x1031 DUP3 DUP3 PUSH2 0xC29 JUMP JUMPDEST SWAP2 POP POP PUSH2 0x160 DUP4 ADD MLOAD DUP5 DUP3 SUB PUSH2 0x160 DUP7 ADD MSTORE PUSH2 0x104D DUP3 DUP3 PUSH2 0xC29 JUMP JUMPDEST SWAP6 SWAP5 POP POP POP POP POP JUMP JUMPDEST PUSH2 0xC23 DUP2 PUSH2 0x1208 JUMP JUMPDEST PUSH1 0x40 DUP2 ADD PUSH2 0x106D DUP3 DUP6 PUSH2 0xC1A JUMP JUMPDEST PUSH2 0x84C PUSH1 0x20 DUP4 ADD DUP5 PUSH2 0x1056 JUMP JUMPDEST PUSH1 0x20 DUP1 DUP3 MSTORE DUP2 ADD PUSH2 0x601 DUP2 PUSH2 0xC5E JUMP JUMPDEST PUSH1 0x20 DUP1 DUP3 MSTORE DUP2 ADD PUSH2 0x601 DUP2 PUSH2 0xC8E JUMP JUMPDEST PUSH1 0x20 DUP1 DUP3 MSTORE DUP2 ADD PUSH2 0x601 DUP2 PUSH2 0xCE4 JUMP JUMPDEST PUSH1 0x20 DUP1 DUP3 MSTORE DUP2 ADD PUSH2 0x601 DUP2 PUSH2 0xD14 JUMP JUMPDEST PUSH1 0x20 DUP1 DUP3 MSTORE DUP2 ADD PUSH2 0x601 DUP2 PUSH2 0xD44 JUMP JUMPDEST PUSH1 0x20 DUP1 DUP3 MSTORE DUP2 ADD PUSH2 0x601 DUP2 PUSH2 0xD74 JUMP JUMPDEST PUSH1 0x20 DUP1 DUP3 MSTORE DUP2 ADD PUSH2 0x601 DUP2 PUSH2 0xDA4 JUMP JUMPDEST PUSH1 0x20 DUP1 DUP3 MSTORE DUP2 ADD PUSH2 0x601 DUP2 PUSH2 0xDFA JUMP JUMPDEST PUSH1 0x20 DUP1 DUP3 MSTORE DUP2 ADD PUSH2 0x601 DUP2 PUSH2 0xE2A JUMP JUMPDEST PUSH1 0xC0 DUP2 ADD PUSH2 0x601 DUP3 DUP5 PUSH2 0xE5A JUMP JUMPDEST PUSH2 0x120 DUP2 ADD PUSH2 0x601 DUP3 DUP5 PUSH2 0xF1A JUMP JUMPDEST PUSH1 0x80 DUP1 DUP3 MSTORE DUP2 ADD PUSH2 0x1138 DUP2 DUP8 PUSH2 0xF53 JUMP JUMPDEST SWAP1 POP DUP2 DUP2 SUB PUSH1 0x20 DUP4 ADD MSTORE PUSH2 0x114C DUP2 DUP7 PUSH2 0xF53 JUMP JUMPDEST SWAP1 POP DUP2 DUP2 SUB PUSH1 0x40 DUP4 ADD MSTORE PUSH2 0x1160 DUP2 DUP6 PUSH2 0xC29 JUMP JUMPDEST SWAP1 POP DUP2 DUP2 SUB PUSH1 0x60 DUP4 ADD MSTORE PUSH2 0x1174 DUP2 DUP5 PUSH2 0xC29 JUMP JUMPDEST SWAP7 SWAP6 POP POP POP POP POP POP JUMP JUMPDEST PUSH1 0x40 MLOAD DUP2 DUP2 ADD PUSH8 0xFFFFFFFFFFFFFFFF DUP2 GT DUP3 DUP3 LT OR ISZERO PUSH2 0x119D JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH1 0x40 MSTORE SWAP2 SWAP1 POP JUMP JUMPDEST PUSH1 0x0 PUSH8 0xFFFFFFFFFFFFFFFF DUP3 GT ISZERO PUSH2 0x11BC JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST POP PUSH1 0x20 PUSH1 0x1F SWAP2 SWAP1 SWAP2 ADD PUSH32 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE0 AND ADD SWAP1 JUMP JUMPDEST MLOAD SWAP1 JUMP JUMPDEST PUSH20 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF AND SWAP1 JUMP JUMPDEST SWAP1 JUMP JUMPDEST ISZERO ISZERO SWAP1 JUMP JUMPDEST DUP3 DUP2 DUP4 CALLDATACOPY POP PUSH1 0x0 SWAP2 ADD MSTORE JUMP JUMPDEST PUSH1 0x0 JUMPDEST DUP4 DUP2 LT ISZERO PUSH2 0x1237 JUMPI DUP2 DUP2 ADD MLOAD DUP4 DUP3 ADD MSTORE PUSH1 0x20 ADD PUSH2 0x121F JUMP JUMPDEST DUP4 DUP2 GT ISZERO PUSH2 0xECA JUMPI POP POP PUSH1 0x0 SWAP2 ADD MSTORE JUMP JUMPDEST PUSH1 0x1F ADD PUSH32 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE0 AND SWAP1 JUMP STOP LOG2 PUSH6 0x627A7A723058 KECCAK256 SWAP13 0xf7 SIGNEXTEND DIV 0xb7 0x5f 0xc2 RETURNDATACOPY PUSH8 0x62AE4C6C8F25CCAD 0x25 0xdf 0xcb CODECOPY 0xcf SAR 0xd3 SWAP7 PUSH15 0xB27CE513DE036C6578706572696D65 PUSH15 0x74616CF50037000000000000000000 ",
+				"sourceMap": "986:9378:28:-;;;1673:99;8:9:-1;5:2;;;30:1;27;20:12;5:2;1673:99:28;;;;;;;;;;;;;;;;;;;;;;1734:8;:31;;-1:-1:-1;;;;;;1734:31:28;-1:-1:-1;;;;;1734:31:28;;;;;;;;;;986:9378;;5:122:-1;;83:39;114:6;108:13;83:39;;;74:48;68:59;-1:-1;;;68:59;134:263;;249:2;237:9;228:7;224:23;220:32;217:2;;;265:1;262;255:12;217:2;300:1;317:64;373:7;353:9;317:64;;;307:74;211:186;-1:-1;;;;211:186;404:128;-1:-1;;;;;473:54;;456:76;;986:9378:28;;;;;;"
+			},
+			"deployedBytecode": {
+				"linkReferences": {},
+				"object": 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0x8C379A000000000000000000000000000000000000000000000000000000000 DUP2 MSTORE PUSH1 0x4 ADD PUSH2 0x105 SWAP1 PUSH2 0x10FA JUMP JUMPDEST POP POP POP DUP4 DUP7 MSTORE PUSH2 0x100 DUP8 ADD DUP1 MLOAD PUSH1 0x20 DUP9 ADD MSTORE PUSH1 0x40 DUP8 ADD DUP5 SWAP1 MSTORE PUSH1 0x60 DUP8 ADD DUP3 SWAP1 MSTORE TIMESTAMP PUSH1 0xA0 DUP9 ADD DUP2 SWAP1 MSTORE SWAP1 MLOAD DUP3 DUP6 SUB SWAP2 SWAP1 DUP2 SWAP1 SUB DUP7 DUP3 LT ISZERO PUSH2 0x255 JUMPI PUSH1 0x80 DUP10 ADD DUP7 SWAP1 MSTORE PUSH2 0x28F JUMP JUMPDEST PUSH2 0x100 DUP11 ADD MLOAD DUP3 LT PUSH2 0x26D JUMPI PUSH1 0x80 DUP10 ADD DUP5 SWAP1 MSTORE PUSH2 0x28F JUMP JUMPDEST PUSH2 0x289 DUP5 PUSH2 0x284 PUSH2 0x27E DUP5 DUP8 PUSH2 0x607 JUMP JUMPDEST DUP9 PUSH2 0x66D JUMP JUMPDEST PUSH2 0x684 JUMP JUMPDEST PUSH1 0x80 DUP11 ADD MSTORE JUMPDEST POP POP POP POP POP POP POP POP SWAP2 SWAP1 POP JUMP JUMPDEST PUSH2 0x2A4 PUSH2 0x7E8 JUMP JUMPDEST PUSH2 0x2AC PUSH2 0x7B1 JUMP JUMPDEST PUSH1 0x0 PUSH1 0x60 PUSH1 0x0 DUP1 PUSH1 0x0 PUSH2 0x2BE DUP11 PUSH2 0xB3 JUMP JUMPDEST DUP1 MLOAD PUSH1 0xA0 DUP3 ADD MLOAD SWAP2 SWAP8 POP GT ISZERO PUSH2 0x300 JUMPI PUSH1 0x40 MLOAD PUSH32 0x8C379A000000000000000000000000000000000000000000000000000000000 DUP2 MSTORE PUSH1 0x4 ADD PUSH2 0x105 SWAP1 PUSH2 0x10EA JUMP JUMPDEST PUSH1 0xA0 DUP7 ADD MLOAD PUSH2 0x100 DUP12 ADD MLOAD GT PUSH2 0x342 JUMPI PUSH1 0x40 MLOAD PUSH32 0x8C379A000000000000000000000000000000000000000000000000000000000 DUP2 MSTORE PUSH1 0x4 ADD PUSH2 0x105 SWAP1 PUSH2 0x10CA JUMP JUMPDEST PUSH1 0x80 DUP1 DUP8 ADD MLOAD SWAP1 DUP13 ADD MLOAD LT ISZERO PUSH2 0x384 JUMPI PUSH1 0x40 MLOAD PUSH32 0x8C379A000000000000000000000000000000000000000000000000000000000 DUP2 MSTORE PUSH1 0x4 ADD PUSH2 0x105 SWAP1 PUSH2 0x10FA JUMP JUMPDEST PUSH1 0x0 SLOAD PUSH1 0x40 MLOAD PUSH32 0x3C28D86100000000000000000000000000000000000000000000000000000000 DUP2 MSTORE PUSH20 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF SWAP1 SWAP2 AND SWAP1 PUSH4 0x3C28D861 SWAP1 PUSH2 0x3E0 SWAP1 DUP15 SWAP1 DUP15 SWAP1 DUP15 SWAP1 DUP15 SWAP1 PUSH1 0x4 ADD PUSH2 0x1127 JUMP JUMPDEST PUSH2 0x120 PUSH1 0x40 MLOAD DUP1 DUP4 SUB DUP2 PUSH1 0x0 DUP8 DUP1 EXTCODESIZE ISZERO DUP1 ISZERO PUSH2 0x3FB JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST POP GAS CALL ISZERO DUP1 ISZERO PUSH2 0x40F JUMPI RETURNDATASIZE PUSH1 0x0 DUP1 RETURNDATACOPY RETURNDATASIZE PUSH1 0x0 REVERT JUMPDEST POP POP POP POP PUSH1 0x40 MLOAD RETURNDATASIZE PUSH1 0x1F NOT PUSH1 0x1F DUP3 ADD AND DUP3 ADD DUP1 PUSH1 0x40 MSTORE POP PUSH2 0x433 SWAP2 SWAP1 DUP2 ADD SWAP1 PUSH2 0xB06 JUMP JUMPDEST SWAP7 POP DUP7 PUSH1 0x40 ADD MLOAD SWAP5 POP PUSH1 0x0 DUP6 GT ISZERO PUSH2 0x5E4 JUMPI PUSH2 0x160 DUP11 ADD MLOAD SWAP4 POP PUSH2 0x45E DUP5 PUSH1 0x10 PUSH4 0xFFFFFFFF PUSH2 0x6C3 AND JUMP JUMPDEST SWAP3 POP PUSH2 0x472 DUP12 PUSH1 0x80 ADD MLOAD DUP8 PUSH1 0x80 ADD MLOAD PUSH2 0x724 JUMP JUMPDEST SWAP2 POP PUSH2 0x47E DUP6 DUP4 PUSH2 0x724 JUMP JUMPDEST SWAP1 POP PUSH1 0x0 DUP2 GT ISZERO PUSH2 0x532 JUMPI DUP10 MLOAD PUSH1 0x40 MLOAD PUSH32 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DUP7 SWAP1 PUSH1 0x4 ADD PUSH2 0x105F JUMP JUMPDEST PUSH1 0x20 PUSH1 0x40 MLOAD DUP1 DUP4 SUB DUP2 PUSH1 0x0 DUP8 DUP1 EXTCODESIZE ISZERO DUP1 ISZERO PUSH2 0x5AA JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST POP GAS CALL ISZERO DUP1 ISZERO PUSH2 0x5BE JUMPI RETURNDATASIZE PUSH1 0x0 DUP1 RETURNDATACOPY RETURNDATASIZE PUSH1 0x0 REVERT JUMPDEST POP POP POP POP PUSH1 0x40 MLOAD RETURNDATASIZE PUSH1 0x1F NOT PUSH1 0x1F DUP3 ADD AND DUP3 ADD DUP1 PUSH1 0x40 MSTORE POP PUSH2 0x5E2 SWAP2 SWAP1 DUP2 ADD SWAP1 PUSH2 0xAE0 JUMP JUMPDEST POP JUMPDEST POP POP POP POP POP POP SWAP5 SWAP4 POP POP POP POP JUMP JUMPDEST PUSH1 0x0 PUSH2 0x5FE DUP4 DUP4 PUSH2 0x766 JUMP JUMPDEST SWAP1 POP JUMPDEST SWAP3 SWAP2 POP POP JUMP JUMPDEST PUSH1 0x0 DUP1 DUP4 ISZERO ISZERO PUSH2 0x61A JUMPI PUSH1 0x0 SWAP2 POP PUSH2 0x666 JUMP JUMPDEST POP DUP3 DUP3 MUL DUP3 DUP5 DUP3 DUP2 ISZERO ISZERO PUSH2 0x62A JUMPI INVALID JUMPDEST DIV EQ PUSH2 0x662 JUMPI PUSH1 0x40 MLOAD PUSH32 0x8C379A000000000000000000000000000000000000000000000000000000000 DUP2 MSTORE PUSH1 0x4 ADD PUSH2 0x105 SWAP1 PUSH2 0x109A JUMP JUMPDEST DUP1 SWAP2 POP JUMPDEST POP SWAP3 SWAP2 POP POP JUMP JUMPDEST PUSH1 0x0 DUP1 DUP3 DUP5 DUP2 ISZERO ISZERO PUSH2 0x67B JUMPI INVALID JUMPDEST DIV SWAP5 SWAP4 POP POP POP POP JUMP JUMPDEST PUSH1 0x0 DUP3 DUP3 ADD DUP4 DUP2 LT ISZERO PUSH2 0x662 JUMPI PUSH1 0x40 MLOAD PUSH32 0x8C379A000000000000000000000000000000000000000000000000000000000 DUP2 MSTORE PUSH1 0x4 ADD PUSH2 0x105 SWAP1 PUSH2 0x109A JUMP JUMPDEST PUSH1 0x0 DUP2 PUSH1 0x14 ADD DUP4 MLOAD LT ISZERO ISZERO ISZERO PUSH2 0x705 JUMPI PUSH1 0x40 MLOAD PUSH32 0x8C379A000000000000000000000000000000000000000000000000000000000 DUP2 MSTORE PUSH1 0x4 ADD PUSH2 0x105 SWAP1 PUSH2 0x10DA JUMP JUMPDEST POP ADD PUSH1 0x14 ADD MLOAD PUSH20 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF AND SWAP1 JUMP JUMPDEST PUSH1 0x0 DUP3 DUP3 GT ISZERO PUSH2 0x760 JUMPI PUSH1 0x40 MLOAD PUSH32 0x8C379A000000000000000000000000000000000000000000000000000000000 DUP2 MSTORE PUSH1 0x4 ADD PUSH2 0x105 SWAP1 PUSH2 0x107A JUMP JUMPDEST POP SWAP1 SUB SWAP1 JUMP JUMPDEST PUSH1 0x0 DUP2 PUSH1 0x20 ADD DUP4 MLOAD LT ISZERO ISZERO ISZERO PUSH2 0x7A8 JUMPI PUSH1 0x40 MLOAD PUSH32 0x8C379A000000000000000000000000000000000000000000000000000000000 DUP2 MSTORE PUSH1 0x4 ADD PUSH2 0x105 SWAP1 PUSH2 0x108A JUMP JUMPDEST POP ADD PUSH1 0x20 ADD MLOAD SWAP1 JUMP JUMPDEST PUSH1 0xC0 PUSH1 0x40 MLOAD SWAP1 DUP2 ADD PUSH1 0x40 MSTORE DUP1 PUSH1 0x0 DUP2 MSTORE PUSH1 0x20 ADD PUSH1 0x0 DUP2 MSTORE PUSH1 0x20 ADD PUSH1 0x0 DUP2 MSTORE PUSH1 0x20 ADD PUSH1 0x0 DUP2 MSTORE PUSH1 0x20 ADD PUSH1 0x0 DUP2 MSTORE PUSH1 0x20 ADD PUSH1 0x0 DUP2 MSTORE POP SWAP1 JUMP JUMPDEST PUSH2 0x120 PUSH1 0x40 MLOAD SWAP1 DUP2 ADD PUSH1 0x40 MSTORE DUP1 PUSH2 0x7FD PUSH2 0x817 JUMP JUMPDEST DUP2 MSTORE PUSH1 0x20 ADD PUSH2 0x80A PUSH2 0x817 JUMP JUMPDEST DUP2 MSTORE PUSH1 0x20 ADD PUSH1 0x0 DUP2 MSTORE POP SWAP1 JUMP JUMPDEST PUSH1 0x80 PUSH1 0x40 MLOAD SWAP1 DUP2 ADD PUSH1 0x40 MSTORE DUP1 PUSH1 0x0 DUP2 MSTORE PUSH1 0x20 ADD PUSH1 0x0 DUP2 MSTORE PUSH1 0x20 ADD PUSH1 0x0 DUP2 MSTORE PUSH1 0x20 ADD PUSH1 0x0 DUP2 MSTORE POP SWAP1 JUMP JUMPDEST PUSH1 0x0 PUSH2 0x84C DUP3 CALLDATALOAD PUSH2 0x11EF JUMP JUMPDEST SWAP4 SWAP3 POP POP POP JUMP JUMPDEST PUSH1 0x0 PUSH2 0x84C DUP3 MLOAD PUSH2 0x120B JUMP JUMPDEST PUSH1 0x0 PUSH1 0x1F DUP3 ADD DUP4 SGT PUSH2 0x870 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST DUP2 CALLDATALOAD PUSH2 0x883 PUSH2 0x87E DUP3 PUSH2 0x11A5 JUMP JUMPDEST PUSH2 0x117E JUMP JUMPDEST SWAP2 POP DUP1 DUP3 MSTORE PUSH1 0x20 DUP4 ADD PUSH1 0x20 DUP4 ADD DUP6 DUP4 DUP4 ADD GT ISZERO PUSH2 0x89F JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH2 0x8AA DUP4 DUP3 DUP5 PUSH2 0x1210 JUMP JUMPDEST POP POP POP SWAP3 SWAP2 POP POP JUMP JUMPDEST PUSH1 0x0 PUSH1 0x80 DUP3 DUP5 SUB SLT ISZERO PUSH2 0x8C5 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH2 0x8CF PUSH1 0x80 PUSH2 0x117E JUMP JUMPDEST SWAP1 POP PUSH1 0x0 PUSH2 0x8DD DUP5 DUP5 PUSH2 0xAD4 JUMP JUMPDEST DUP3 MSTORE POP PUSH1 0x20 PUSH2 0x8EE DUP5 DUP5 DUP4 ADD PUSH2 0xAD4 JUMP JUMPDEST PUSH1 0x20 DUP4 ADD MSTORE POP PUSH1 0x40 PUSH2 0x902 DUP5 DUP3 DUP6 ADD PUSH2 0xAD4 JUMP JUMPDEST PUSH1 0x40 DUP4 ADD MSTORE POP PUSH1 0x60 PUSH2 0x916 DUP5 DUP3 DUP6 ADD PUSH2 0xAD4 JUMP JUMPDEST PUSH1 0x60 DUP4 ADD MSTORE POP SWAP3 SWAP2 POP POP JUMP JUMPDEST PUSH1 0x0 PUSH2 0x120 DUP3 DUP5 SUB SLT ISZERO PUSH2 0x935 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH2 0x93F PUSH1 0x60 PUSH2 0x117E JUMP JUMPDEST SWAP1 POP PUSH1 0x0 PUSH2 0x94D DUP5 DUP5 PUSH2 0x8B3 JUMP JUMPDEST DUP3 MSTORE POP PUSH1 0x80 PUSH2 0x95E DUP5 DUP5 DUP4 ADD PUSH2 0x8B3 JUMP JUMPDEST PUSH1 0x20 DUP4 ADD MSTORE POP PUSH2 0x100 PUSH2 0x973 DUP5 DUP3 DUP6 ADD PUSH2 0xAD4 JUMP JUMPDEST PUSH1 0x40 DUP4 ADD MSTORE POP SWAP3 SWAP2 POP POP JUMP JUMPDEST PUSH1 0x0 PUSH2 0x180 DUP3 DUP5 SUB SLT ISZERO PUSH2 0x992 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH2 0x99D PUSH2 0x180 PUSH2 0x117E JUMP JUMPDEST SWAP1 POP PUSH1 0x0 PUSH2 0x9AB DUP5 DUP5 PUSH2 0x840 JUMP JUMPDEST DUP3 MSTORE POP PUSH1 0x20 PUSH2 0x9BC DUP5 DUP5 DUP4 ADD PUSH2 0x840 JUMP JUMPDEST PUSH1 0x20 DUP4 ADD MSTORE POP PUSH1 0x40 PUSH2 0x9D0 DUP5 DUP3 DUP6 ADD PUSH2 0x840 JUMP JUMPDEST PUSH1 0x40 DUP4 ADD MSTORE POP PUSH1 0x60 PUSH2 0x9E4 DUP5 DUP3 DUP6 ADD PUSH2 0x840 JUMP JUMPDEST PUSH1 0x60 DUP4 ADD MSTORE POP PUSH1 0x80 PUSH2 0x9F8 DUP5 DUP3 DUP6 ADD PUSH2 0xAC8 JUMP JUMPDEST PUSH1 0x80 DUP4 ADD MSTORE POP PUSH1 0xA0 PUSH2 0xA0C DUP5 DUP3 DUP6 ADD PUSH2 0xAC8 JUMP JUMPDEST PUSH1 0xA0 DUP4 ADD MSTORE POP PUSH1 0xC0 PUSH2 0xA20 DUP5 DUP3 DUP6 ADD PUSH2 0xAC8 JUMP JUMPDEST PUSH1 0xC0 DUP4 ADD MSTORE POP PUSH1 0xE0 PUSH2 0xA34 DUP5 DUP3 DUP6 ADD PUSH2 0xAC8 JUMP JUMPDEST PUSH1 0xE0 DUP4 ADD MSTORE POP PUSH2 0x100 PUSH2 0xA49 DUP5 DUP3 DUP6 ADD PUSH2 0xAC8 JUMP JUMPDEST PUSH2 0x100 DUP4 ADD MSTORE POP PUSH2 0x120 PUSH2 0xA5F DUP5 DUP3 DUP6 ADD PUSH2 0xAC8 JUMP JUMPDEST PUSH2 0x120 DUP4 ADD MSTORE POP PUSH2 0x140 DUP3 ADD CALLDATALOAD PUSH8 0xFFFFFFFFFFFFFFFF DUP2 GT ISZERO PUSH2 0xA81 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH2 0xA8D DUP5 DUP3 DUP6 ADD PUSH2 0x85F JUMP JUMPDEST PUSH2 0x140 DUP4 ADD MSTORE POP PUSH2 0x160 DUP3 ADD CALLDATALOAD PUSH8 0xFFFFFFFFFFFFFFFF DUP2 GT ISZERO PUSH2 0xAAF JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH2 0xABB DUP5 DUP3 DUP6 ADD PUSH2 0x85F JUMP JUMPDEST PUSH2 0x160 DUP4 ADD MSTORE POP SWAP3 SWAP2 POP POP JUMP JUMPDEST PUSH1 0x0 PUSH2 0x84C DUP3 CALLDATALOAD PUSH2 0x1208 JUMP JUMPDEST PUSH1 0x0 PUSH2 0x84C DUP3 MLOAD PUSH2 0x1208 JUMP JUMPDEST PUSH1 0x0 PUSH1 0x20 DUP3 DUP5 SUB SLT ISZERO PUSH2 0xAF2 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH1 0x0 PUSH2 0xAFE DUP5 DUP5 PUSH2 0x853 JUMP JUMPDEST SWAP5 SWAP4 POP POP POP POP JUMP JUMPDEST PUSH1 0x0 PUSH2 0x120 DUP3 DUP5 SUB SLT ISZERO PUSH2 0xB19 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH1 0x0 PUSH2 0xAFE DUP5 DUP5 PUSH2 0x922 JUMP JUMPDEST PUSH1 0x0 PUSH1 0x20 DUP3 DUP5 SUB SLT ISZERO PUSH2 0xB37 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST DUP2 CALLDATALOAD PUSH8 0xFFFFFFFFFFFFFFFF DUP2 GT ISZERO PUSH2 0xB4E JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH2 0xAFE DUP5 DUP3 DUP6 ADD PUSH2 0x97F JUMP JUMPDEST PUSH1 0x0 DUP1 PUSH1 0x0 DUP1 PUSH1 0x80 DUP6 DUP8 SUB SLT ISZERO PUSH2 0xB70 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST DUP5 CALLDATALOAD PUSH8 0xFFFFFFFFFFFFFFFF DUP2 GT ISZERO PUSH2 0xB87 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH2 0xB93 DUP8 DUP3 DUP9 ADD PUSH2 0x97F JUMP JUMPDEST SWAP5 POP POP PUSH1 0x20 DUP6 ADD CALLDATALOAD PUSH8 0xFFFFFFFFFFFFFFFF DUP2 GT ISZERO PUSH2 0xBB0 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH2 0xBBC DUP8 DUP3 DUP9 ADD PUSH2 0x97F JUMP JUMPDEST SWAP4 POP POP PUSH1 0x40 DUP6 ADD CALLDATALOAD PUSH8 0xFFFFFFFFFFFFFFFF DUP2 GT ISZERO PUSH2 0xBD9 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH2 0xBE5 DUP8 DUP3 DUP9 ADD PUSH2 0x85F JUMP JUMPDEST SWAP3 POP POP PUSH1 0x60 DUP6 ADD CALLDATALOAD PUSH8 0xFFFFFFFFFFFFFFFF DUP2 GT ISZERO PUSH2 0xC02 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH2 0xC0E DUP8 DUP3 DUP9 ADD PUSH2 0x85F JUMP JUMPDEST SWAP2 POP POP SWAP3 SWAP6 SWAP2 SWAP5 POP SWAP3 POP JUMP JUMPDEST PUSH2 0xC23 DUP2 PUSH2 0x11EF JUMP JUMPDEST DUP3 MSTORE POP POP JUMP JUMPDEST PUSH1 0x0 PUSH2 0xC34 DUP3 PUSH2 0x11EB JUMP JUMPDEST DUP1 DUP5 MSTORE PUSH2 0xC48 DUP2 PUSH1 0x20 DUP7 ADD PUSH1 0x20 DUP7 ADD PUSH2 0x121C JUMP JUMPDEST PUSH2 0xC51 DUP2 PUSH2 0x1248 JUMP JUMPDEST SWAP1 SWAP4 ADD PUSH1 0x20 ADD SWAP4 SWAP3 POP POP POP JUMP JUMPDEST PUSH1 0x11 DUP2 MSTORE PUSH32 0x55494E543235365F554E444552464C4F57000000000000000000000000000000 PUSH1 0x20 DUP3 ADD MSTORE PUSH1 0x40 ADD SWAP1 JUMP JUMPDEST PUSH1 0x26 DUP2 MSTORE PUSH32 0x475245415445525F4F525F455155414C5F544F5F33325F4C454E4754485F5245 PUSH1 0x20 DUP3 ADD MSTORE PUSH32 0x5155495245440000000000000000000000000000000000000000000000000000 PUSH1 0x40 DUP3 ADD MSTORE PUSH1 0x60 ADD SWAP1 JUMP JUMPDEST PUSH1 0x10 DUP2 MSTORE PUSH32 0x55494E543235365F4F564552464C4F5700000000000000000000000000000000 PUSH1 0x20 DUP3 ADD MSTORE PUSH1 0x40 ADD SWAP1 JUMP JUMPDEST PUSH1 0x12 DUP2 MSTORE PUSH32 0x494E56414C49445F41535345545F444154410000000000000000000000000000 PUSH1 0x20 DUP3 ADD MSTORE PUSH1 0x40 ADD SWAP1 JUMP JUMPDEST PUSH1 0x12 DUP2 MSTORE PUSH32 0x494E56414C49445F424547494E5F54494D450000000000000000000000000000 PUSH1 0x20 DUP3 ADD MSTORE PUSH1 0x40 ADD SWAP1 JUMP JUMPDEST PUSH1 0xF DUP2 MSTORE PUSH32 0x41554354494F4E5F455850495245440000000000000000000000000000000000 PUSH1 0x20 DUP3 ADD MSTORE PUSH1 0x40 ADD SWAP1 JUMP JUMPDEST PUSH1 0x26 DUP2 MSTORE PUSH32 0x475245415445525F4F525F455155414C5F544F5F32305F4C454E4754485F5245 PUSH1 0x20 DUP3 ADD MSTORE PUSH32 0x5155495245440000000000000000000000000000000000000000000000000000 PUSH1 0x40 DUP3 ADD MSTORE PUSH1 0x60 ADD SWAP1 JUMP JUMPDEST PUSH1 0x13 DUP2 MSTORE PUSH32 0x41554354494F4E5F4E4F545F5354415254454400000000000000000000000000 PUSH1 0x20 DUP3 ADD MSTORE PUSH1 0x40 ADD SWAP1 JUMP JUMPDEST PUSH1 0xE DUP2 MSTORE PUSH32 0x494E56414C49445F414D4F554E54000000000000000000000000000000000000 PUSH1 0x20 DUP3 ADD MSTORE PUSH1 0x40 ADD SWAP1 JUMP JUMPDEST DUP1 MLOAD PUSH1 0xC0 DUP4 ADD SWAP1 PUSH2 0xE6B DUP5 DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH1 0x20 DUP3 ADD MLOAD PUSH2 0xE7E PUSH1 0x20 DUP6 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH1 0x40 DUP3 ADD MLOAD PUSH2 0xE91 PUSH1 0x40 DUP6 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH1 0x60 DUP3 ADD MLOAD PUSH2 0xEA4 PUSH1 0x60 DUP6 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH1 0x80 DUP3 ADD MLOAD PUSH2 0xEB7 PUSH1 0x80 DUP6 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH1 0xA0 DUP3 ADD MLOAD PUSH2 0xECA PUSH1 0xA0 DUP6 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST POP POP POP POP JUMP JUMPDEST DUP1 MLOAD PUSH1 0x80 DUP4 ADD SWAP1 PUSH2 0xEE1 DUP5 DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH1 0x20 DUP3 ADD MLOAD PUSH2 0xEF4 PUSH1 0x20 DUP6 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH1 0x40 DUP3 ADD MLOAD PUSH2 0xF07 PUSH1 0x40 DUP6 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH1 0x60 DUP3 ADD MLOAD PUSH2 0xECA PUSH1 0x60 DUP6 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST DUP1 MLOAD PUSH2 0x120 DUP4 ADD SWAP1 PUSH2 0xF2C DUP5 DUP3 PUSH2 0xED0 JUMP JUMPDEST POP PUSH1 0x20 DUP3 ADD MLOAD PUSH2 0xF3F PUSH1 0x80 DUP6 ADD DUP3 PUSH2 0xED0 JUMP JUMPDEST POP PUSH1 0x40 DUP3 ADD MLOAD PUSH2 0xECA PUSH2 0x100 DUP6 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST DUP1 MLOAD PUSH1 0x0 SWAP1 PUSH2 0x180 DUP5 ADD SWAP1 PUSH2 0xF68 DUP6 DUP3 PUSH2 0xC1A JUMP JUMPDEST POP PUSH1 0x20 DUP4 ADD MLOAD PUSH2 0xF7B PUSH1 0x20 DUP7 ADD DUP3 PUSH2 0xC1A JUMP JUMPDEST POP PUSH1 0x40 DUP4 ADD MLOAD PUSH2 0xF8E PUSH1 0x40 DUP7 ADD DUP3 PUSH2 0xC1A JUMP JUMPDEST POP PUSH1 0x60 DUP4 ADD MLOAD PUSH2 0xFA1 PUSH1 0x60 DUP7 ADD DUP3 PUSH2 0xC1A JUMP JUMPDEST POP PUSH1 0x80 DUP4 ADD MLOAD PUSH2 0xFB4 PUSH1 0x80 DUP7 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH1 0xA0 DUP4 ADD MLOAD PUSH2 0xFC7 PUSH1 0xA0 DUP7 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH1 0xC0 DUP4 ADD MLOAD PUSH2 0xFDA PUSH1 0xC0 DUP7 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH1 0xE0 DUP4 ADD MLOAD PUSH2 0xFED PUSH1 0xE0 DUP7 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH2 0x100 DUP4 ADD MLOAD PUSH2 0x1002 PUSH2 0x100 DUP7 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH2 0x120 DUP4 ADD MLOAD PUSH2 0x1017 PUSH2 0x120 DUP7 ADD DUP3 PUSH2 0x1056 JUMP JUMPDEST POP PUSH2 0x140 DUP4 ADD MLOAD DUP5 DUP3 SUB PUSH2 0x140 DUP7 ADD MSTORE PUSH2 0x1031 DUP3 DUP3 PUSH2 0xC29 JUMP JUMPDEST SWAP2 POP POP PUSH2 0x160 DUP4 ADD MLOAD DUP5 DUP3 SUB PUSH2 0x160 DUP7 ADD MSTORE PUSH2 0x104D DUP3 DUP3 PUSH2 0xC29 JUMP JUMPDEST SWAP6 SWAP5 POP POP POP POP POP JUMP JUMPDEST PUSH2 0xC23 DUP2 PUSH2 0x1208 JUMP JUMPDEST PUSH1 0x40 DUP2 ADD PUSH2 0x106D DUP3 DUP6 PUSH2 0xC1A JUMP JUMPDEST PUSH2 0x84C PUSH1 0x20 DUP4 ADD DUP5 PUSH2 0x1056 JUMP JUMPDEST PUSH1 0x20 DUP1 DUP3 MSTORE DUP2 ADD PUSH2 0x601 DUP2 PUSH2 0xC5E JUMP JUMPDEST PUSH1 0x20 DUP1 DUP3 MSTORE DUP2 ADD PUSH2 0x601 DUP2 PUSH2 0xC8E JUMP JUMPDEST PUSH1 0x20 DUP1 DUP3 MSTORE DUP2 ADD PUSH2 0x601 DUP2 PUSH2 0xCE4 JUMP JUMPDEST PUSH1 0x20 DUP1 DUP3 MSTORE DUP2 ADD PUSH2 0x601 DUP2 PUSH2 0xD14 JUMP JUMPDEST PUSH1 0x20 DUP1 DUP3 MSTORE DUP2 ADD PUSH2 0x601 DUP2 PUSH2 0xD44 JUMP JUMPDEST PUSH1 0x20 DUP1 DUP3 MSTORE DUP2 ADD PUSH2 0x601 DUP2 PUSH2 0xD74 JUMP JUMPDEST PUSH1 0x20 DUP1 DUP3 MSTORE DUP2 ADD PUSH2 0x601 DUP2 PUSH2 0xDA4 JUMP JUMPDEST PUSH1 0x20 DUP1 DUP3 MSTORE DUP2 ADD PUSH2 0x601 DUP2 PUSH2 0xDFA JUMP JUMPDEST PUSH1 0x20 DUP1 DUP3 MSTORE DUP2 ADD PUSH2 0x601 DUP2 PUSH2 0xE2A JUMP JUMPDEST PUSH1 0xC0 DUP2 ADD PUSH2 0x601 DUP3 DUP5 PUSH2 0xE5A JUMP JUMPDEST PUSH2 0x120 DUP2 ADD PUSH2 0x601 DUP3 DUP5 PUSH2 0xF1A JUMP JUMPDEST PUSH1 0x80 DUP1 DUP3 MSTORE DUP2 ADD PUSH2 0x1138 DUP2 DUP8 PUSH2 0xF53 JUMP JUMPDEST SWAP1 POP DUP2 DUP2 SUB PUSH1 0x20 DUP4 ADD MSTORE PUSH2 0x114C DUP2 DUP7 PUSH2 0xF53 JUMP JUMPDEST SWAP1 POP DUP2 DUP2 SUB PUSH1 0x40 DUP4 ADD MSTORE PUSH2 0x1160 DUP2 DUP6 PUSH2 0xC29 JUMP JUMPDEST SWAP1 POP DUP2 DUP2 SUB PUSH1 0x60 DUP4 ADD MSTORE PUSH2 0x1174 DUP2 DUP5 PUSH2 0xC29 JUMP JUMPDEST SWAP7 SWAP6 POP POP POP POP POP POP JUMP JUMPDEST PUSH1 0x40 MLOAD DUP2 DUP2 ADD PUSH8 0xFFFFFFFFFFFFFFFF DUP2 GT DUP3 DUP3 LT OR ISZERO PUSH2 0x119D JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH1 0x40 MSTORE SWAP2 SWAP1 POP JUMP JUMPDEST PUSH1 0x0 PUSH8 0xFFFFFFFFFFFFFFFF DUP3 GT ISZERO PUSH2 0x11BC JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST POP PUSH1 0x20 PUSH1 0x1F SWAP2 SWAP1 SWAP2 ADD PUSH32 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE0 AND ADD SWAP1 JUMP JUMPDEST MLOAD SWAP1 JUMP JUMPDEST PUSH20 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF AND SWAP1 JUMP JUMPDEST SWAP1 JUMP JUMPDEST ISZERO ISZERO SWAP1 JUMP JUMPDEST DUP3 DUP2 DUP4 CALLDATACOPY POP PUSH1 0x0 SWAP2 ADD MSTORE JUMP JUMPDEST PUSH1 0x0 JUMPDEST DUP4 DUP2 LT ISZERO PUSH2 0x1237 JUMPI DUP2 DUP2 ADD MLOAD DUP4 DUP3 ADD MSTORE PUSH1 0x20 ADD PUSH2 0x121F JUMP JUMPDEST DUP4 DUP2 GT ISZERO PUSH2 0xECA JUMPI POP POP PUSH1 0x0 SWAP2 ADD MSTORE JUMP JUMPDEST PUSH1 0x1F ADD PUSH32 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE0 AND SWAP1 JUMP STOP LOG2 PUSH6 0x627A7A723058 KECCAK256 SWAP13 0xf7 SIGNEXTEND DIV 0xb7 0x5f 0xc2 RETURNDATACOPY PUSH8 0x62AE4C6C8F25CCAD 0x25 0xdf 0xcb CODECOPY 0xcf SAR 0xd3 SWAP7 PUSH15 0xB27CE513DE036C6578706572696D65 PUSH15 0x74616CF50037000000000000000000 ",
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+			}
+		}
+	},
+    "networks": {}
+}
diff --git a/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/ERC20Proxy.json b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/ERC20Proxy.json
new file mode 100644
index 000000000..33af866e7
--- /dev/null
+++ b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/ERC20Proxy.json
@@ -0,0 +1,195 @@
+{
+    "schemaVersion": "2.0.0",
+    "contractName": "ERC20Proxy",
+    "compilerOutput": {
+        "abi": [
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "target",
+                        "type": "address"
+                    }
+                ],
+                "name": "addAuthorizedAddress",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "authorities",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "target",
+                        "type": "address"
+                    }
+                ],
+                "name": "removeAuthorizedAddress",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "owner",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "target",
+                        "type": "address"
+                    },
+                    {
+                        "name": "index",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "removeAuthorizedAddressAtIndex",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "getProxyId",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bytes4"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "pure",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "name": "authorized",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "getAuthorizedAddresses",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address[]"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "newOwner",
+                        "type": "address"
+                    }
+                ],
+                "name": "transferOwnership",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "fallback"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "target",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "caller",
+                        "type": "address"
+                    }
+                ],
+                "name": "AuthorizedAddressAdded",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "target",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "caller",
+                        "type": "address"
+                    }
+                ],
+                "name": "AuthorizedAddressRemoved",
+                "type": "event"
+            }
+        ],
+        "evm": {
+            "bytecode": {
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+            }
+        }
+    },
+    "networks": {}
+}
diff --git a/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/ERC20Token.json b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/ERC20Token.json
new file mode 100644
index 000000000..d89d08a77
--- /dev/null
+++ b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/ERC20Token.json
@@ -0,0 +1,189 @@
+{
+    "schemaVersion": "2.0.0",
+    "contractName": "ERC20Token",
+    "compilerOutput": {
+        "abi": [
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_spender",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "approve",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "totalSupply",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "transferFrom",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_owner",
+                        "type": "address"
+                    }
+                ],
+                "name": "balanceOf",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "transfer",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_spender",
+                        "type": "address"
+                    }
+                ],
+                "name": "allowance",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "Transfer",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_spender",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "Approval",
+                "type": "event"
+            }
+        ],
+        "evm": {
+            "bytecode": {
+                "linkReferences": {},
+                "object":
+                    "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"
+            }
+        }
+    },
+    "networks": {}
+}
diff --git a/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/ERC721Proxy.json b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/ERC721Proxy.json
new file mode 100644
index 000000000..db01e40f0
--- /dev/null
+++ b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/ERC721Proxy.json
@@ -0,0 +1,195 @@
+{
+    "schemaVersion": "2.0.0",
+    "contractName": "ERC721Proxy",
+    "compilerOutput": {
+        "abi": [
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "target",
+                        "type": "address"
+                    }
+                ],
+                "name": "addAuthorizedAddress",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "authorities",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "target",
+                        "type": "address"
+                    }
+                ],
+                "name": "removeAuthorizedAddress",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "owner",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "target",
+                        "type": "address"
+                    },
+                    {
+                        "name": "index",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "removeAuthorizedAddressAtIndex",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "getProxyId",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bytes4"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "pure",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "name": "authorized",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "getAuthorizedAddresses",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address[]"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "newOwner",
+                        "type": "address"
+                    }
+                ],
+                "name": "transferOwnership",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "fallback"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "target",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "caller",
+                        "type": "address"
+                    }
+                ],
+                "name": "AuthorizedAddressAdded",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "target",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "caller",
+                        "type": "address"
+                    }
+                ],
+                "name": "AuthorizedAddressRemoved",
+                "type": "event"
+            }
+        ],
+        "evm": {
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+            }
+        }
+    },
+    "networks": {}
+}
diff --git a/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/ERC721Token.json b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/ERC721Token.json
new file mode 100644
index 000000000..d189090e8
--- /dev/null
+++ b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/ERC721Token.json
@@ -0,0 +1,268 @@
+{
+    "schemaVersion": "2.0.0",
+    "contractName": "ERC721Token",
+    "compilerOutput": {
+        "abi": [
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "getApproved",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_approved",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "approve",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "transferFrom",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "safeTransferFrom",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "ownerOf",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_owner",
+                        "type": "address"
+                    }
+                ],
+                "name": "balanceOf",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_operator",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_approved",
+                        "type": "bool"
+                    }
+                ],
+                "name": "setApprovalForAll",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "_data",
+                        "type": "bytes"
+                    }
+                ],
+                "name": "safeTransferFrom",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_operator",
+                        "type": "address"
+                    }
+                ],
+                "name": "isApprovedForAll",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "Transfer",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_approved",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "Approval",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_operator",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "_approved",
+                        "type": "bool"
+                    }
+                ],
+                "name": "ApprovalForAll",
+                "type": "event"
+            }
+        ],
+        "evm": {
+            "bytecode": {
+                "linkReferences": {},
+                "object":
+                    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+            }
+        }
+    },
+    "networks": {}
+}
diff --git a/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/Exchange.json b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/Exchange.json
new file mode 100644
index 000000000..6e586b899
--- /dev/null
+++ b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/Exchange.json
@@ -0,0 +1,1981 @@
+{
+    "schemaVersion": "2.0.0",
+    "contractName": "Exchange",
+    "compilerOutput": {
+        "abi": [
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "bytes32"
+                    }
+                ],
+                "name": "filled",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "orders",
+                        "type": "tuple[]"
+                    },
+                    {
+                        "name": "takerAssetFillAmounts",
+                        "type": "uint256[]"
+                    },
+                    {
+                        "name": "signatures",
+                        "type": "bytes[]"
+                    }
+                ],
+                "name": "batchFillOrders",
+                "outputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFeePaid",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFeePaid",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "totalFillResults",
+                        "type": "tuple"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "bytes32"
+                    }
+                ],
+                "name": "cancelled",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "hash",
+                        "type": "bytes32"
+                    },
+                    {
+                        "name": "signerAddress",
+                        "type": "address"
+                    },
+                    {
+                        "name": "signature",
+                        "type": "bytes"
+                    }
+                ],
+                "name": "preSign",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "leftOrder",
+                        "type": "tuple"
+                    },
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "rightOrder",
+                        "type": "tuple"
+                    },
+                    {
+                        "name": "leftSignature",
+                        "type": "bytes"
+                    },
+                    {
+                        "name": "rightSignature",
+                        "type": "bytes"
+                    }
+                ],
+                "name": "matchOrders",
+                "outputs": [
+                    {
+                        "components": [
+                            {
+                                "components": [
+                                    {
+                                        "name": "makerAssetFilledAmount",
+                                        "type": "uint256"
+                                    },
+                                    {
+                                        "name": "takerAssetFilledAmount",
+                                        "type": "uint256"
+                                    },
+                                    {
+                                        "name": "makerFeePaid",
+                                        "type": "uint256"
+                                    },
+                                    {
+                                        "name": "takerFeePaid",
+                                        "type": "uint256"
+                                    }
+                                ],
+                                "name": "left",
+                                "type": "tuple"
+                            },
+                            {
+                                "components": [
+                                    {
+                                        "name": "makerAssetFilledAmount",
+                                        "type": "uint256"
+                                    },
+                                    {
+                                        "name": "takerAssetFilledAmount",
+                                        "type": "uint256"
+                                    },
+                                    {
+                                        "name": "makerFeePaid",
+                                        "type": "uint256"
+                                    },
+                                    {
+                                        "name": "takerFeePaid",
+                                        "type": "uint256"
+                                    }
+                                ],
+                                "name": "right",
+                                "type": "tuple"
+                            },
+                            {
+                                "name": "leftMakerAssetSpreadAmount",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "matchedFillResults",
+                        "type": "tuple"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "order",
+                        "type": "tuple"
+                    },
+                    {
+                        "name": "takerAssetFillAmount",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "signature",
+                        "type": "bytes"
+                    }
+                ],
+                "name": "fillOrderNoThrow",
+                "outputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFeePaid",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFeePaid",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "fillResults",
+                        "type": "tuple"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "bytes4"
+                    }
+                ],
+                "name": "assetProxies",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "orders",
+                        "type": "tuple[]"
+                    }
+                ],
+                "name": "batchCancelOrders",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "orders",
+                        "type": "tuple[]"
+                    },
+                    {
+                        "name": "takerAssetFillAmounts",
+                        "type": "uint256[]"
+                    },
+                    {
+                        "name": "signatures",
+                        "type": "bytes[]"
+                    }
+                ],
+                "name": "batchFillOrKillOrders",
+                "outputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFeePaid",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFeePaid",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "totalFillResults",
+                        "type": "tuple"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "targetOrderEpoch",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "cancelOrdersUpTo",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "orders",
+                        "type": "tuple[]"
+                    },
+                    {
+                        "name": "takerAssetFillAmounts",
+                        "type": "uint256[]"
+                    },
+                    {
+                        "name": "signatures",
+                        "type": "bytes[]"
+                    }
+                ],
+                "name": "batchFillOrdersNoThrow",
+                "outputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFeePaid",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFeePaid",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "totalFillResults",
+                        "type": "tuple"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "assetProxyId",
+                        "type": "bytes4"
+                    }
+                ],
+                "name": "getAssetProxy",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "bytes32"
+                    }
+                ],
+                "name": "transactions",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "order",
+                        "type": "tuple"
+                    },
+                    {
+                        "name": "takerAssetFillAmount",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "signature",
+                        "type": "bytes"
+                    }
+                ],
+                "name": "fillOrKillOrder",
+                "outputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFeePaid",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFeePaid",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "fillResults",
+                        "type": "tuple"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "validatorAddress",
+                        "type": "address"
+                    },
+                    {
+                        "name": "approval",
+                        "type": "bool"
+                    }
+                ],
+                "name": "setSignatureValidatorApproval",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    },
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "name": "allowedValidators",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "orders",
+                        "type": "tuple[]"
+                    },
+                    {
+                        "name": "takerAssetFillAmount",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "signatures",
+                        "type": "bytes[]"
+                    }
+                ],
+                "name": "marketSellOrders",
+                "outputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFeePaid",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFeePaid",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "totalFillResults",
+                        "type": "tuple"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "orders",
+                        "type": "tuple[]"
+                    }
+                ],
+                "name": "getOrdersInfo",
+                "outputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "orderStatus",
+                                "type": "uint8"
+                            },
+                            {
+                                "name": "orderHash",
+                                "type": "bytes32"
+                            },
+                            {
+                                "name": "orderTakerAssetFilledAmount",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "",
+                        "type": "tuple[]"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "bytes32"
+                    },
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "name": "preSigned",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "owner",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "hash",
+                        "type": "bytes32"
+                    },
+                    {
+                        "name": "signerAddress",
+                        "type": "address"
+                    },
+                    {
+                        "name": "signature",
+                        "type": "bytes"
+                    }
+                ],
+                "name": "isValidSignature",
+                "outputs": [
+                    {
+                        "name": "isValid",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "orders",
+                        "type": "tuple[]"
+                    },
+                    {
+                        "name": "makerAssetFillAmount",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "signatures",
+                        "type": "bytes[]"
+                    }
+                ],
+                "name": "marketBuyOrdersNoThrow",
+                "outputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFeePaid",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFeePaid",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "totalFillResults",
+                        "type": "tuple"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "order",
+                        "type": "tuple"
+                    },
+                    {
+                        "name": "takerAssetFillAmount",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "signature",
+                        "type": "bytes"
+                    }
+                ],
+                "name": "fillOrder",
+                "outputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFeePaid",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFeePaid",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "fillResults",
+                        "type": "tuple"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "salt",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "signerAddress",
+                        "type": "address"
+                    },
+                    {
+                        "name": "data",
+                        "type": "bytes"
+                    },
+                    {
+                        "name": "signature",
+                        "type": "bytes"
+                    }
+                ],
+                "name": "executeTransaction",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "assetProxy",
+                        "type": "address"
+                    }
+                ],
+                "name": "registerAssetProxy",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "order",
+                        "type": "tuple"
+                    }
+                ],
+                "name": "getOrderInfo",
+                "outputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "orderStatus",
+                                "type": "uint8"
+                            },
+                            {
+                                "name": "orderHash",
+                                "type": "bytes32"
+                            },
+                            {
+                                "name": "orderTakerAssetFilledAmount",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "orderInfo",
+                        "type": "tuple"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "order",
+                        "type": "tuple"
+                    }
+                ],
+                "name": "cancelOrder",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    },
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "name": "orderEpoch",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "ZRX_ASSET_DATA",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bytes"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "orders",
+                        "type": "tuple[]"
+                    },
+                    {
+                        "name": "takerAssetFillAmount",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "signatures",
+                        "type": "bytes[]"
+                    }
+                ],
+                "name": "marketSellOrdersNoThrow",
+                "outputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFeePaid",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFeePaid",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "totalFillResults",
+                        "type": "tuple"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "EIP712_DOMAIN_HASH",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bytes32"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "orders",
+                        "type": "tuple[]"
+                    },
+                    {
+                        "name": "makerAssetFillAmount",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "signatures",
+                        "type": "bytes[]"
+                    }
+                ],
+                "name": "marketBuyOrders",
+                "outputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFeePaid",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFeePaid",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "totalFillResults",
+                        "type": "tuple"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "currentContextAddress",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "newOwner",
+                        "type": "address"
+                    }
+                ],
+                "name": "transferOwnership",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "VERSION",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "string"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "inputs": [
+                    {
+                        "name": "_zrxAssetData",
+                        "type": "bytes"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "constructor"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "signerAddress",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "validatorAddress",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "approved",
+                        "type": "bool"
+                    }
+                ],
+                "name": "SignatureValidatorApproval",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "makerAddress",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "feeRecipientAddress",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "takerAddress",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "senderAddress",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "makerAssetFilledAmount",
+                        "type": "uint256"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "takerAssetFilledAmount",
+                        "type": "uint256"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "makerFeePaid",
+                        "type": "uint256"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "takerFeePaid",
+                        "type": "uint256"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "orderHash",
+                        "type": "bytes32"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "makerAssetData",
+                        "type": "bytes"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "takerAssetData",
+                        "type": "bytes"
+                    }
+                ],
+                "name": "Fill",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "makerAddress",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "feeRecipientAddress",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "senderAddress",
+                        "type": "address"
+                    },
+                    {
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+                        "name": "orderHash",
+                        "type": "bytes32"
+                    },
+                    {
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+                        "name": "makerAssetData",
+                        "type": "bytes"
+                    },
+                    {
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+                        "name": "takerAssetData",
+                        "type": "bytes"
+                    }
+                ],
+                "name": "Cancel",
+                "type": "event"
+            },
+            {
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+                "inputs": [
+                    {
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+                        "name": "makerAddress",
+                        "type": "address"
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+                    {
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+                        "name": "senderAddress",
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+                    },
+                    {
+                        "indexed": false,
+                        "name": "orderEpoch",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "CancelUpTo",
+                "type": "event"
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+            }
+        }
+    },
+    "networks": {}
+}
diff --git a/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/Forwarder.json b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/Forwarder.json
new file mode 100644
index 000000000..a7bd62f8e
--- /dev/null
+++ b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/Forwarder.json
@@ -0,0 +1,447 @@
+{
+	"schemaVersion": "2.0.0",
+	"contractName": "Forwarder",
+	"compilerOutput": {
+		"abi": [
+			{
+				"constant": false,
+				"inputs": [
+					{
+						"components": [
+							{
+								"name": "makerAddress",
+								"type": "address"
+							},
+							{
+								"name": "takerAddress",
+								"type": "address"
+							},
+							{
+								"name": "feeRecipientAddress",
+								"type": "address"
+							},
+							{
+								"name": "senderAddress",
+								"type": "address"
+							},
+							{
+								"name": "makerAssetAmount",
+								"type": "uint256"
+							},
+							{
+								"name": "takerAssetAmount",
+								"type": "uint256"
+							},
+							{
+								"name": "makerFee",
+								"type": "uint256"
+							},
+							{
+								"name": "takerFee",
+								"type": "uint256"
+							},
+							{
+								"name": "expirationTimeSeconds",
+								"type": "uint256"
+							},
+							{
+								"name": "salt",
+								"type": "uint256"
+							},
+							{
+								"name": "makerAssetData",
+								"type": "bytes"
+							},
+							{
+								"name": "takerAssetData",
+								"type": "bytes"
+							}
+						],
+						"name": "orders",
+						"type": "tuple[]"
+					},
+					{
+						"name": "makerAssetFillAmount",
+						"type": "uint256"
+					},
+					{
+						"name": "signatures",
+						"type": "bytes[]"
+					},
+					{
+						"components": [
+							{
+								"name": "makerAddress",
+								"type": "address"
+							},
+							{
+								"name": "takerAddress",
+								"type": "address"
+							},
+							{
+								"name": "feeRecipientAddress",
+								"type": "address"
+							},
+							{
+								"name": "senderAddress",
+								"type": "address"
+							},
+							{
+								"name": "makerAssetAmount",
+								"type": "uint256"
+							},
+							{
+								"name": "takerAssetAmount",
+								"type": "uint256"
+							},
+							{
+								"name": "makerFee",
+								"type": "uint256"
+							},
+							{
+								"name": "takerFee",
+								"type": "uint256"
+							},
+							{
+								"name": "expirationTimeSeconds",
+								"type": "uint256"
+							},
+							{
+								"name": "salt",
+								"type": "uint256"
+							},
+							{
+								"name": "makerAssetData",
+								"type": "bytes"
+							},
+							{
+								"name": "takerAssetData",
+								"type": "bytes"
+							}
+						],
+						"name": "feeOrders",
+						"type": "tuple[]"
+					},
+					{
+						"name": "feeSignatures",
+						"type": "bytes[]"
+					},
+					{
+						"name": "feePercentage",
+						"type": "uint256"
+					},
+					{
+						"name": "feeRecipient",
+						"type": "address"
+					}
+				],
+				"name": "marketBuyOrdersWithEth",
+				"outputs": [
+					{
+						"components": [
+							{
+								"name": "makerAssetFilledAmount",
+								"type": "uint256"
+							},
+							{
+								"name": "takerAssetFilledAmount",
+								"type": "uint256"
+							},
+							{
+								"name": "makerFeePaid",
+								"type": "uint256"
+							},
+							{
+								"name": "takerFeePaid",
+								"type": "uint256"
+							}
+						],
+						"name": "orderFillResults",
+						"type": "tuple"
+					},
+					{
+						"components": [
+							{
+								"name": "makerAssetFilledAmount",
+								"type": "uint256"
+							},
+							{
+								"name": "takerAssetFilledAmount",
+								"type": "uint256"
+							},
+							{
+								"name": "makerFeePaid",
+								"type": "uint256"
+							},
+							{
+								"name": "takerFeePaid",
+								"type": "uint256"
+							}
+						],
+						"name": "feeOrderFillResults",
+						"type": "tuple"
+					}
+				],
+				"payable": true,
+				"stateMutability": "payable",
+				"type": "function"
+			},
+			{
+				"constant": false,
+				"inputs": [
+					{
+						"name": "assetData",
+						"type": "bytes"
+					},
+					{
+						"name": "amount",
+						"type": "uint256"
+					}
+				],
+				"name": "withdrawAsset",
+				"outputs": [],
+				"payable": false,
+				"stateMutability": "nonpayable",
+				"type": "function"
+			},
+			{
+				"constant": true,
+				"inputs": [],
+				"name": "owner",
+				"outputs": [
+					{
+						"name": "",
+						"type": "address"
+					}
+				],
+				"payable": false,
+				"stateMutability": "view",
+				"type": "function"
+			},
+			{
+				"constant": false,
+				"inputs": [
+					{
+						"components": [
+							{
+								"name": "makerAddress",
+								"type": "address"
+							},
+							{
+								"name": "takerAddress",
+								"type": "address"
+							},
+							{
+								"name": "feeRecipientAddress",
+								"type": "address"
+							},
+							{
+								"name": "senderAddress",
+								"type": "address"
+							},
+							{
+								"name": "makerAssetAmount",
+								"type": "uint256"
+							},
+							{
+								"name": "takerAssetAmount",
+								"type": "uint256"
+							},
+							{
+								"name": "makerFee",
+								"type": "uint256"
+							},
+							{
+								"name": "takerFee",
+								"type": "uint256"
+							},
+							{
+								"name": "expirationTimeSeconds",
+								"type": "uint256"
+							},
+							{
+								"name": "salt",
+								"type": "uint256"
+							},
+							{
+								"name": "makerAssetData",
+								"type": "bytes"
+							},
+							{
+								"name": "takerAssetData",
+								"type": "bytes"
+							}
+						],
+						"name": "orders",
+						"type": "tuple[]"
+					},
+					{
+						"name": "signatures",
+						"type": "bytes[]"
+					},
+					{
+						"components": [
+							{
+								"name": "makerAddress",
+								"type": "address"
+							},
+							{
+								"name": "takerAddress",
+								"type": "address"
+							},
+							{
+								"name": "feeRecipientAddress",
+								"type": "address"
+							},
+							{
+								"name": "senderAddress",
+								"type": "address"
+							},
+							{
+								"name": "makerAssetAmount",
+								"type": "uint256"
+							},
+							{
+								"name": "takerAssetAmount",
+								"type": "uint256"
+							},
+							{
+								"name": "makerFee",
+								"type": "uint256"
+							},
+							{
+								"name": "takerFee",
+								"type": "uint256"
+							},
+							{
+								"name": "expirationTimeSeconds",
+								"type": "uint256"
+							},
+							{
+								"name": "salt",
+								"type": "uint256"
+							},
+							{
+								"name": "makerAssetData",
+								"type": "bytes"
+							},
+							{
+								"name": "takerAssetData",
+								"type": "bytes"
+							}
+						],
+						"name": "feeOrders",
+						"type": "tuple[]"
+					},
+					{
+						"name": "feeSignatures",
+						"type": "bytes[]"
+					},
+					{
+						"name": "feePercentage",
+						"type": "uint256"
+					},
+					{
+						"name": "feeRecipient",
+						"type": "address"
+					}
+				],
+				"name": "marketSellOrdersWithEth",
+				"outputs": [
+					{
+						"components": [
+							{
+								"name": "makerAssetFilledAmount",
+								"type": "uint256"
+							},
+							{
+								"name": "takerAssetFilledAmount",
+								"type": "uint256"
+							},
+							{
+								"name": "makerFeePaid",
+								"type": "uint256"
+							},
+							{
+								"name": "takerFeePaid",
+								"type": "uint256"
+							}
+						],
+						"name": "orderFillResults",
+						"type": "tuple"
+					},
+					{
+						"components": [
+							{
+								"name": "makerAssetFilledAmount",
+								"type": "uint256"
+							},
+							{
+								"name": "takerAssetFilledAmount",
+								"type": "uint256"
+							},
+							{
+								"name": "makerFeePaid",
+								"type": "uint256"
+							},
+							{
+								"name": "takerFeePaid",
+								"type": "uint256"
+							}
+						],
+						"name": "feeOrderFillResults",
+						"type": "tuple"
+					}
+				],
+				"payable": true,
+				"stateMutability": "payable",
+				"type": "function"
+			},
+			{
+				"constant": false,
+				"inputs": [
+					{
+						"name": "newOwner",
+						"type": "address"
+					}
+				],
+				"name": "transferOwnership",
+				"outputs": [],
+				"payable": false,
+				"stateMutability": "nonpayable",
+				"type": "function"
+			},
+			{
+				"inputs": [
+					{
+						"name": "_exchange",
+						"type": "address"
+					},
+					{
+						"name": "_zrxAssetData",
+						"type": "bytes"
+					},
+					{
+						"name": "_wethAssetData",
+						"type": "bytes"
+					}
+				],
+				"payable": false,
+				"stateMutability": "nonpayable",
+				"type": "constructor"
+			},
+			{
+				"payable": true,
+				"stateMutability": "payable",
+				"type": "fallback"
+			}
+		],
+		"evm": {
+			"bytecode": {
+				"linkReferences": {},
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+            }
+        }
+    },
+	"networks": {}
+}
\ No newline at end of file
diff --git a/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/IValidator.json b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/IValidator.json
new file mode 100644
index 000000000..8ca99f261
--- /dev/null
+++ b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/IValidator.json
@@ -0,0 +1,41 @@
+{
+    "schemaVersion": "2.0.0",
+    "contractName": "IValidator",
+    "compilerOutput": {
+        "abi": [
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "hash",
+                        "type": "bytes32"
+                    },
+                    {
+                        "name": "signerAddress",
+                        "type": "address"
+                    },
+                    {
+                        "name": "signature",
+                        "type": "bytes"
+                    }
+                ],
+                "name": "isValidSignature",
+                "outputs": [
+                    {
+                        "name": "isValid",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            }
+        ],
+        "evm": {
+            "bytecode": {
+                "object": "0x"
+            }
+        }
+    },
+    "networks": {}
+}
diff --git a/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/IWallet.json b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/IWallet.json
new file mode 100644
index 000000000..2a8f975cc
--- /dev/null
+++ b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/IWallet.json
@@ -0,0 +1,37 @@
+{
+    "schemaVersion": "2.0.0",
+    "contractName": "IWallet",
+    "compilerOutput": {
+        "abi": [
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "hash",
+                        "type": "bytes32"
+                    },
+                    {
+                        "name": "signature",
+                        "type": "bytes"
+                    }
+                ],
+                "name": "isValidSignature",
+                "outputs": [
+                    {
+                        "name": "isValid",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            }
+        ],
+        "evm": {
+            "bytecode": {
+                "object": "0x"
+            }
+        }
+    },
+    "networks": {}
+}
diff --git a/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/OrderValidator.json b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/OrderValidator.json
new file mode 100644
index 000000000..90a92e7cb
--- /dev/null
+++ b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/OrderValidator.json
@@ -0,0 +1,572 @@
+{
+    "schemaVersion": "2.0.0",
+    "contractName": "OrderValidator",
+    "compilerOutput": {
+        "abi": [
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "order",
+                        "type": "tuple"
+                    },
+                    {
+                        "name": "takerAddress",
+                        "type": "address"
+                    }
+                ],
+                "name": "getOrderAndTraderInfo",
+                "outputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "orderStatus",
+                                "type": "uint8"
+                            },
+                            {
+                                "name": "orderHash",
+                                "type": "bytes32"
+                            },
+                            {
+                                "name": "orderTakerAssetFilledAmount",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "orderInfo",
+                        "type": "tuple"
+                    },
+                    {
+                        "components": [
+                            {
+                                "name": "makerBalance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAllowance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerBalance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAllowance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerZrxBalance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerZrxAllowance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerZrxBalance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerZrxAllowance",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "traderInfo",
+                        "type": "tuple"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "target",
+                        "type": "address"
+                    },
+                    {
+                        "name": "assetData",
+                        "type": "bytes"
+                    }
+                ],
+                "name": "getBalanceAndAllowance",
+                "outputs": [
+                    {
+                        "name": "balance",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "allowance",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "orders",
+                        "type": "tuple[]"
+                    },
+                    {
+                        "name": "takerAddresses",
+                        "type": "address[]"
+                    }
+                ],
+                "name": "getOrdersAndTradersInfo",
+                "outputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "orderStatus",
+                                "type": "uint8"
+                            },
+                            {
+                                "name": "orderHash",
+                                "type": "bytes32"
+                            },
+                            {
+                                "name": "orderTakerAssetFilledAmount",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "ordersInfo",
+                        "type": "tuple[]"
+                    },
+                    {
+                        "components": [
+                            {
+                                "name": "makerBalance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAllowance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerBalance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAllowance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerZrxBalance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerZrxAllowance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerZrxBalance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerZrxAllowance",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "tradersInfo",
+                        "type": "tuple[]"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "orders",
+                        "type": "tuple[]"
+                    },
+                    {
+                        "name": "takerAddresses",
+                        "type": "address[]"
+                    }
+                ],
+                "name": "getTradersInfo",
+                "outputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerBalance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAllowance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerBalance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAllowance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerZrxBalance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerZrxAllowance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerZrxBalance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerZrxAllowance",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "",
+                        "type": "tuple[]"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "token",
+                        "type": "address"
+                    },
+                    {
+                        "name": "tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "getERC721TokenOwner",
+                "outputs": [
+                    {
+                        "name": "owner",
+                        "type": "address"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "target",
+                        "type": "address"
+                    },
+                    {
+                        "name": "assetData",
+                        "type": "bytes[]"
+                    }
+                ],
+                "name": "getBalancesAndAllowances",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256[]"
+                    },
+                    {
+                        "name": "",
+                        "type": "uint256[]"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "order",
+                        "type": "tuple"
+                    },
+                    {
+                        "name": "takerAddress",
+                        "type": "address"
+                    }
+                ],
+                "name": "getTraderInfo",
+                "outputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerBalance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAllowance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerBalance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAllowance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerZrxBalance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerZrxAllowance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerZrxBalance",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerZrxAllowance",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "traderInfo",
+                        "type": "tuple"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "inputs": [
+                    {
+                        "name": "_exchange",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_zrxAssetData",
+                        "type": "bytes"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "constructor"
+            }
+        ],
+        "evm": {
+            "bytecode": {
+                "linkReferences": {},
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+            }
+        }
+    },
+    "networks": {}
+}
diff --git a/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/WETH9.json b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/WETH9.json
new file mode 100644
index 000000000..e6ce25f7d
--- /dev/null
+++ b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/WETH9.json
@@ -0,0 +1,293 @@
+{
+    "schemaVersion": "2.0.0",
+    "contractName": "WETH9",
+    "compilerOutput": {
+        "abi": [
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "name",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "string"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "guy",
+                        "type": "address"
+                    },
+                    {
+                        "name": "wad",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "approve",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "totalSupply",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "src",
+                        "type": "address"
+                    },
+                    {
+                        "name": "dst",
+                        "type": "address"
+                    },
+                    {
+                        "name": "wad",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "transferFrom",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "wad",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "withdraw",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "decimals",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint8"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "name": "balanceOf",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "symbol",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "string"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "dst",
+                        "type": "address"
+                    },
+                    {
+                        "name": "wad",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "transfer",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [],
+                "name": "deposit",
+                "outputs": [],
+                "payable": true,
+                "stateMutability": "payable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    },
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "name": "allowance",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "payable": true,
+                "stateMutability": "payable",
+                "type": "fallback"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_spender",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "Approval",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "Transfer",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "Deposit",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "Withdrawal",
+                "type": "event"
+            }
+        ],
+        "evm": {
+            "bytecode": {
+                "linkReferences": {},
+                "object":
+                    "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"
+            }
+        }
+    },
+    "networks": {}
+}
diff --git a/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/ZRXToken.json b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/ZRXToken.json
new file mode 100644
index 000000000..29bb55824
--- /dev/null
+++ b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/artifacts/ZRXToken.json
@@ -0,0 +1,227 @@
+{
+    "schemaVersion": "2.0.0",
+    "contractName": "ZRXToken",
+    "compilerOutput": {
+        "abi": [
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "name",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "string"
+                    }
+                ],
+                "payable": false,
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_spender",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "approve",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "totalSupply",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "transferFrom",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "decimals",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint8"
+                    }
+                ],
+                "payable": false,
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_owner",
+                        "type": "address"
+                    }
+                ],
+                "name": "balanceOf",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "symbol",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "string"
+                    }
+                ],
+                "payable": false,
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "transfer",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_spender",
+                        "type": "address"
+                    }
+                ],
+                "name": "allowance",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "type": "function"
+            },
+            {
+                "inputs": [],
+                "payable": false,
+                "type": "constructor"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "Transfer",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_spender",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "Approval",
+                "type": "event"
+            }
+        ],
+        "evm": {
+            "bytecode": {
+                "linkReferences": {},
+                "object":
+                    "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"
+            }
+        }
+    },
+    "networks": {}
+}
diff --git a/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/py.typed b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/py.typed
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/python-packages/contract_artifacts/src/zero_ex/contract_artifacts/py.typed
diff --git a/python-packages/contract_artifacts/stubs/distutils/__init__.pyi b/python-packages/contract_artifacts/stubs/distutils/__init__.pyi
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/python-packages/contract_artifacts/stubs/distutils/__init__.pyi
diff --git a/python-packages/contract_artifacts/stubs/distutils/command/__init__.pyi b/python-packages/contract_artifacts/stubs/distutils/command/__init__.pyi
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/python-packages/contract_artifacts/stubs/distutils/command/__init__.pyi
diff --git a/python-packages/contract_artifacts/stubs/distutils/command/clean.pyi b/python-packages/contract_artifacts/stubs/distutils/command/clean.pyi
new file mode 100644
index 000000000..46a42ddb1
--- /dev/null
+++ b/python-packages/contract_artifacts/stubs/distutils/command/clean.pyi
@@ -0,0 +1,7 @@
+from distutils.core import Command
+
+class clean(Command):
+    def initialize_options(self: clean) -> None: ...
+    def finalize_options(self: clean) -> None: ...
+    def run(self: clean) -> None: ...
+    ...
diff --git a/python-packages/contract_artifacts/stubs/setuptools/__init__.pyi b/python-packages/contract_artifacts/stubs/setuptools/__init__.pyi
new file mode 100644
index 000000000..8ea8d32b7
--- /dev/null
+++ b/python-packages/contract_artifacts/stubs/setuptools/__init__.pyi
@@ -0,0 +1,8 @@
+from distutils.dist import Distribution
+from typing import Any, List
+
+def setup(**attrs: Any) -> Distribution: ...
+
+class Command: ...
+
+def find_packages(where: str) -> List[str]: ...
diff --git a/python-packages/contract_artifacts/stubs/setuptools/command/__init__.pyi b/python-packages/contract_artifacts/stubs/setuptools/command/__init__.pyi
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/python-packages/contract_artifacts/stubs/setuptools/command/__init__.pyi
diff --git a/python-packages/contract_artifacts/stubs/setuptools/command/test.pyi b/python-packages/contract_artifacts/stubs/setuptools/command/test.pyi
new file mode 100644
index 000000000..c5ec770ad
--- /dev/null
+++ b/python-packages/contract_artifacts/stubs/setuptools/command/test.pyi
@@ -0,0 +1,3 @@
+from setuptools import Command
+
+class test(Command): ...
diff --git a/python-packages/contract_artifacts/tox.ini b/python-packages/contract_artifacts/tox.ini
new file mode 100644
index 000000000..aa1037ed7
--- /dev/null
+++ b/python-packages/contract_artifacts/tox.ini
@@ -0,0 +1,12 @@
+# tox (https://tox.readthedocs.io/) is a tool for running tests
+# in multiple virtualenvs. This configuration file will run the
+# test suite on all supported python versions. To use it, "pip install tox"
+# and then run "tox" from this directory.
+
+[tox]
+envlist = py37
+
+[testenv]
+commands =
+    pip install -e .[dev]
+    python setup.py lint
diff --git a/python-packages/contract_demo/.discharge.json b/python-packages/contract_demo/.discharge.json
new file mode 100644
index 000000000..9d811ae3e
--- /dev/null
+++ b/python-packages/contract_demo/.discharge.json
@@ -0,0 +1,13 @@
+{
+    "domain": "0x-contract-demo-py",
+    "build_command": "python setup.py build_sphinx",
+    "upload_directory": "build/docs/html",
+    "index_key": "index.html",
+    "error_key": "index.html",
+    "trailing_slashes": true,
+    "cache": 3600,
+    "aws_profile": "default",
+    "aws_region": "us-east-1",
+    "cdn": false,
+    "dns_configured": true
+}
diff --git a/python-packages/contract_demo/README.md b/python-packages/contract_demo/README.md
new file mode 100644
index 000000000..3a0f964e3
--- /dev/null
+++ b/python-packages/contract_demo/README.md
@@ -0,0 +1,39 @@
+## 0x-contract-demo
+
+A demonstration of calling 0x smart contracts from Python.
+
+Read the [documentation](http://0x-contract-demo-py.s3-website-us-east-1.amazonaws.com/)
+
+## Contributing
+
+We welcome improvements and fixes from the wider community! To report bugs within this package, please create an issue in this repository.
+
+Please read our [contribution guidelines](../../CONTRIBUTING.md) before getting started.
+
+### Install Code and Dependencies
+
+Ensure that you have installed Python >=3.6 and Docker. Then:
+
+```bash
+pip install -e .[dev]
+```
+
+### Test
+
+Tests depend on a running ganache instance with the 0x contracts deployed in it. For convenience, a docker container is provided that has ganache-cli and a snapshot containing the necessary contracts. A shortcut is provided to run that docker container: `./setup.py ganache`. With that running, the tests can be run with `./setup.py test`.
+
+### Clean
+
+`./setup.py clean --all`
+
+### Lint
+
+`./setup.py lint`
+
+### Build Documentation
+
+`./setup.py build_sphinx`
+
+### More
+
+See `./setup.py --help-commands` for more info.
diff --git a/python-packages/contract_demo/setup.py b/python-packages/contract_demo/setup.py
new file mode 100755
index 000000000..a7afbd30c
--- /dev/null
+++ b/python-packages/contract_demo/setup.py
@@ -0,0 +1,146 @@
+#!/usr/bin/env python
+
+"""setuptools module for 0x-contract-demo package."""
+
+import distutils.command.build_py
+from distutils.command.clean import clean
+import subprocess  # nosec
+from shutil import rmtree
+from os import environ, path
+from sys import argv
+
+from setuptools import setup
+from setuptools.command.test import test as TestCommand
+
+
+class TestCommandExtension(TestCommand):
+    """Run pytest tests."""
+
+    def run_tests(self):
+        """Invoke pytest."""
+        import pytest
+
+        exit(pytest.main())
+
+
+class LintCommand(distutils.command.build_py.build_py):
+    """Custom setuptools command class for running linters."""
+
+    description = "Run linters"
+
+    def run(self):
+        """Run linter shell commands."""
+        lint_commands = [
+            # formatter:
+            "black --line-length 79 --check --diff test setup.py".split(),
+            # style guide checker (formerly pep8):
+            "pycodestyle test setup.py".split(),
+            # docstring style checker:
+            "pydocstyle test setup.py".split(),
+            # static type checker:
+            "mypy test setup.py".split(),
+            # security issue checker:
+            "bandit -r ./setup.py".split(),
+            # general linter:
+            "pylint test setup.py".split(),
+            # pylint takes relatively long to run, so it runs last, to enable
+            # fast failures.
+        ]
+
+        # tell mypy where to find interface stubs for 3rd party libs
+        environ["MYPYPATH"] = path.join(
+            path.dirname(path.realpath(argv[0])), "stubs"
+        )
+
+        for lint_command in lint_commands:
+            print(
+                "Running lint command `", " ".join(lint_command).strip(), "`"
+            )
+            subprocess.check_call(lint_command)  # nosec
+
+
+class CleanCommandExtension(clean):
+    """Custom command to do custom cleanup."""
+
+    def run(self):
+        """Run the regular clean, followed by our custom commands."""
+        super().run()
+        rmtree(".mypy_cache", ignore_errors=True)
+        rmtree(".tox", ignore_errors=True)
+        rmtree(".pytest_cache", ignore_errors=True)
+
+
+class GanacheCommand(distutils.command.build_py.build_py):
+    """Custom command to publish to pypi.org."""
+
+    description = "Run ganache daemon to support tests."
+
+    def run(self):
+        """Run ganache."""
+        cmd_line = "docker run -d -p 8545:8545 0xorg/ganache-cli:2.2.2".split()
+        subprocess.call(cmd_line)  # nosec
+
+
+class PublishDocsCommand(distutils.command.build_py.build_py):
+    """Custom command to publish docs to S3."""
+
+    description = (
+        "Publish docs to "
+        + "http://0x-contract-addresses-py.s3-website-us-east-1.amazonaws.com/"
+    )
+
+    def run(self):
+        """Run npm package `discharge` to build & upload docs."""
+        subprocess.check_call("discharge deploy".split())  # nosec
+
+
+setup(
+    name="0x-contract-demo",
+    version="1.0.0",
+    description="Demonstration of calling 0x contracts",
+    url=(
+        "https://github.com/0xProject/0x-monorepo/tree/development"
+        + "/python-packages/contract_demo"
+    ),
+    author="F. Eugene Aumson",
+    author_email="feuGeneA@users.noreply.github.com",
+    cmdclass={
+        "clean": CleanCommandExtension,
+        "lint": LintCommand,
+        "test": TestCommandExtension,
+        "ganache": GanacheCommand,
+        "publish_docs": PublishDocsCommand,
+    },
+    install_requires=[
+        "0x-contract-addresses",
+        "0x-contract-artifacts",
+        "0x-order-utils",
+        "0x-web3",  # TEMPORARY! pending resolution of our web3.py PR#1147
+        "mypy_extensions",
+    ],
+    extras_require={
+        "dev": [
+            "bandit",
+            "black",
+            "coverage",
+            "coveralls",
+            "mypy",
+            "mypy_extensions",
+            "pycodestyle",
+            "pydocstyle",
+            "pylint",
+            "pytest",
+            "sphinx",
+            "tox",
+        ]
+    },
+    python_requires=">=3.6, <4",
+    license="Apache 2.0",
+    zip_safe=False,  # required per mypy
+    command_options={
+        "build_sphinx": {
+            "source_dir": ("setup.py", "test"),
+            "build_dir": ("setup.py", "build/docs"),
+        }
+    },
+)
diff --git a/python-packages/contract_demo/stubs/__init__.pyi b/python-packages/contract_demo/stubs/__init__.pyi
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/python-packages/contract_demo/stubs/__init__.pyi
diff --git a/python-packages/contract_demo/stubs/command/__init__.pyi b/python-packages/contract_demo/stubs/command/__init__.pyi
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/python-packages/contract_demo/stubs/command/__init__.pyi
diff --git a/python-packages/contract_demo/stubs/command/clean.pyi b/python-packages/contract_demo/stubs/command/clean.pyi
new file mode 100644
index 000000000..46a42ddb1
--- /dev/null
+++ b/python-packages/contract_demo/stubs/command/clean.pyi
@@ -0,0 +1,7 @@
+from distutils.core import Command
+
+class clean(Command):
+    def initialize_options(self: clean) -> None: ...
+    def finalize_options(self: clean) -> None: ...
+    def run(self: clean) -> None: ...
+    ...
diff --git a/python-packages/contract_demo/stubs/distutils/__init__.pyi b/python-packages/contract_demo/stubs/distutils/__init__.pyi
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/python-packages/contract_demo/stubs/distutils/__init__.pyi
diff --git a/python-packages/contract_demo/stubs/distutils/command/__init__.pyi b/python-packages/contract_demo/stubs/distutils/command/__init__.pyi
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/python-packages/contract_demo/stubs/distutils/command/__init__.pyi
diff --git a/python-packages/contract_demo/stubs/distutils/command/clean.pyi b/python-packages/contract_demo/stubs/distutils/command/clean.pyi
new file mode 100644
index 000000000..46a42ddb1
--- /dev/null
+++ b/python-packages/contract_demo/stubs/distutils/command/clean.pyi
@@ -0,0 +1,7 @@
+from distutils.core import Command
+
+class clean(Command):
+    def initialize_options(self: clean) -> None: ...
+    def finalize_options(self: clean) -> None: ...
+    def run(self: clean) -> None: ...
+    ...
diff --git a/python-packages/contract_demo/stubs/eth_utils/__init__.pyi b/python-packages/contract_demo/stubs/eth_utils/__init__.pyi
new file mode 100644
index 000000000..4a83338ca
--- /dev/null
+++ b/python-packages/contract_demo/stubs/eth_utils/__init__.pyi
@@ -0,0 +1,4 @@
+from typing import Union
+
+def to_checksum_address(value: Union[str, bytes]) -> str:
+    ...
diff --git a/python-packages/contract_demo/stubs/pytest/__init__.pyi b/python-packages/contract_demo/stubs/pytest/__init__.pyi
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/python-packages/contract_demo/stubs/pytest/__init__.pyi
diff --git a/python-packages/contract_demo/stubs/setuptools/__init__.pyi b/python-packages/contract_demo/stubs/setuptools/__init__.pyi
new file mode 100644
index 000000000..8ea8d32b7
--- /dev/null
+++ b/python-packages/contract_demo/stubs/setuptools/__init__.pyi
@@ -0,0 +1,8 @@
+from distutils.dist import Distribution
+from typing import Any, List
+
+def setup(**attrs: Any) -> Distribution: ...
+
+class Command: ...
+
+def find_packages(where: str) -> List[str]: ...
diff --git a/python-packages/contract_demo/stubs/setuptools/command/__init__.pyi b/python-packages/contract_demo/stubs/setuptools/command/__init__.pyi
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/python-packages/contract_demo/stubs/setuptools/command/__init__.pyi
diff --git a/python-packages/contract_demo/stubs/setuptools/command/test.pyi b/python-packages/contract_demo/stubs/setuptools/command/test.pyi
new file mode 100644
index 000000000..c5ec770ad
--- /dev/null
+++ b/python-packages/contract_demo/stubs/setuptools/command/test.pyi
@@ -0,0 +1,3 @@
+from setuptools import Command
+
+class test(Command): ...
diff --git a/python-packages/contract_demo/stubs/web3/__init__.pyi b/python-packages/contract_demo/stubs/web3/__init__.pyi
new file mode 100644
index 000000000..21482d598
--- /dev/null
+++ b/python-packages/contract_demo/stubs/web3/__init__.pyi
@@ -0,0 +1,2 @@
+class Web3:
+    ...
diff --git a/python-packages/contract_demo/stubs/web3/utils/__init__.pyi b/python-packages/contract_demo/stubs/web3/utils/__init__.pyi
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/python-packages/contract_demo/stubs/web3/utils/__init__.pyi
diff --git a/python-packages/contract_demo/stubs/web3/utils/datatypes.pyi b/python-packages/contract_demo/stubs/web3/utils/datatypes.pyi
new file mode 100644
index 000000000..70baff372
--- /dev/null
+++ b/python-packages/contract_demo/stubs/web3/utils/datatypes.pyi
@@ -0,0 +1,3 @@
+class Contract:
+    def call(self): ...
+    ...
diff --git a/python-packages/contract_demo/test/__init__.py b/python-packages/contract_demo/test/__init__.py
new file mode 100644
index 000000000..600f143bf
--- /dev/null
+++ b/python-packages/contract_demo/test/__init__.py
@@ -0,0 +1 @@
+"""Demonstrations of calling 0x smart contracts."""
diff --git a/python-packages/contract_demo/test/conf.py b/python-packages/contract_demo/test/conf.py
new file mode 100644
index 000000000..45ed4b2a5
--- /dev/null
+++ b/python-packages/contract_demo/test/conf.py
@@ -0,0 +1,54 @@
+"""Configuration file for the Sphinx documentation builder."""
+
+# Reference: http://www.sphinx-doc.org/en/master/config
+
+from typing import List
+import pkg_resources
+
+
+# pylint: disable=invalid-name
+# because these variables are not named in upper case, as globals should be.
+
+project = "0x-contract-demo"
+# pylint: disable=redefined-builtin
+copyright = "2018, ZeroEx, Intl."
+author = "F. Eugene Aumson"
+version = pkg_resources.get_distribution("0x-contract-demo").version
+release = ""  # The full version, including alpha/beta/rc tags
+
+extensions = [
+    "sphinx.ext.autodoc",
+    "sphinx.ext.doctest",
+    "sphinx.ext.intersphinx",
+    "sphinx.ext.coverage",
+    "sphinx.ext.viewcode",
+]
+
+templates_path = ["doc_templates"]
+
+source_suffix = ".rst"
+# eg: source_suffix = [".rst", ".md"]
+
+master_doc = "index"  # The master toctree document.
+
+language = None
+
+exclude_patterns: List[str] = []
+
+# The name of the Pygments (syntax highlighting) style to use.
+pygments_style = None
+
+html_theme = "alabaster"
+
+html_static_path = ["doc_static"]
+# Add any paths that contain custom static files (such as style sheets) here,
+# relative to this directory. They are copied after the builtin static files,
+# so a file named "default.css" will overwrite the builtin "default.css".
+
+# Output file base name for HTML help builder.
+htmlhelp_basename = "contract_demopydoc"
+
+# -- Extension configuration:
+
+# Example configuration for intersphinx: refer to the Python standard library.
+intersphinx_mapping = {"https://docs.python.org/": None}
diff --git a/python-packages/contract_demo/test/doc_static/.gitkeep b/python-packages/contract_demo/test/doc_static/.gitkeep
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/python-packages/contract_demo/test/doc_static/.gitkeep
diff --git a/python-packages/contract_demo/test/index.rst b/python-packages/contract_demo/test/index.rst
new file mode 100644
index 000000000..c546eccfa
--- /dev/null
+++ b/python-packages/contract_demo/test/index.rst
@@ -0,0 +1,18 @@
+.. source for the sphinx-generated build/docs/web/index.html
+
+Python demo of 0x Smart Contracts
+=================================
+
+.. toctree::
+   :maxdepth: 2
+   :caption: Contents:
+
+.. automodule:: test.test_exchange
+   :members:
+
+Indices and tables
+==================
+
+* :ref:`genindex`
+* :ref:`modindex`
+* :ref:`search`
diff --git a/python-packages/contract_demo/test/test_exchange.py b/python-packages/contract_demo/test/test_exchange.py
new file mode 100644
index 000000000..07492a403
--- /dev/null
+++ b/python-packages/contract_demo/test/test_exchange.py
@@ -0,0 +1,65 @@
+"""Test calling methods on the Exchange contract."""
+
+from eth_utils import to_checksum_address
+from web3 import Web3
+from web3.utils import datatypes
+
+from zero_ex.contract_addresses import NETWORK_TO_ADDRESSES, NetworkId
+import zero_ex.contract_artifacts
+from zero_ex.json_schemas import assert_valid
+from zero_ex.order_utils import (
+    Order,
+    OrderInfo,
+    order_to_jsdict,
+    generate_order_hash_hex,
+)
+
+
+def test_get_order_info():
+    """Demonstrate Exchange.getOrderInfo()."""
+    order: Order = {
+        "makerAddress": "0x0000000000000000000000000000000000000000",
+        "takerAddress": "0x0000000000000000000000000000000000000000",
+        "feeRecipientAddress": "0x0000000000000000000000000000000000000000",
+        "senderAddress": "0x0000000000000000000000000000000000000000",
+        "makerAssetAmount": 1000000000000000000,
+        "takerAssetAmount": 1000000000000000000,
+        "makerFee": 0,
+        "takerFee": 0,
+        "expirationTimeSeconds": 12345,
+        "salt": 12345,
+        "makerAssetData": (b"\x00") * 20,
+        "takerAssetData": (b"\x00") * 20,
+    }
+
+    web3_instance = Web3(Web3.HTTPProvider("http://127.0.0.1:8545"))
+
+    # false positive from pylint: disable=no-member
+    contract_address = NETWORK_TO_ADDRESSES[
+        NetworkId(int(web3_instance.net.version))
+    ].exchange
+
+    assert_valid(
+        order_to_jsdict(order, exchange_address=contract_address),
+        "/orderSchema",
+    )
+
+    # false positive from pylint: disable=no-member
+    exchange: datatypes.Contract = web3_instance.eth.contract(
+        address=to_checksum_address(contract_address),
+        abi=zero_ex.contract_artifacts.abi_by_name("Exchange"),
+    )
+
+    order_info = OrderInfo(*exchange.call().getOrderInfo(order))
+
+    assert isinstance(order_info.order_status, int)
+    assert order_info.order_status == 4
+
+    assert isinstance(order_info.order_hash, bytes)
+    assert order_info.order_hash.hex() == generate_order_hash_hex(
+        order,
+        exchange_address=NETWORK_TO_ADDRESSES[NetworkId.GANACHE].exchange,
+    )
+
+    assert isinstance(order_info.order_taker_asset_filled_amount, int)
+    assert order_info.order_taker_asset_filled_amount == 0
diff --git a/python-packages/install b/python-packages/install
new file mode 100755
index 000000000..73d88fec2
--- /dev/null
+++ b/python-packages/install
@@ -0,0 +1,13 @@
+#!/usr/bin/env python
+
+"""Install all packages in non-editable mode (no -e on pip install)."""
+
+from os import path
+import subprocess
+
+# install all packages
+subprocess.check_call(
+    (
+        path.join(".", "cmd_pkgs_in_dep_order.py") + " pip install .[dev]"
+    ).split()
+)
diff --git a/python-packages/install_editable b/python-packages/install_editable
new file mode 100755
index 000000000..6ac68b289
--- /dev/null
+++ b/python-packages/install_editable
@@ -0,0 +1,13 @@
+#!/usr/bin/env python
+
+"""Script to install all packages in editable mode (pip install -e .)."""
+
+from os import path
+import subprocess
+
+# install all packages
+subprocess.check_call(
+    (
+        path.join(".", "cmd_pkgs_in_dep_order.py") + " pip install -e .[dev]"
+    ).split()
+)
diff --git a/python-packages/json_schemas/.discharge.json b/python-packages/json_schemas/.discharge.json
new file mode 100644
index 000000000..66d95679f
--- /dev/null
+++ b/python-packages/json_schemas/.discharge.json
@@ -0,0 +1,13 @@
+{
+    "domain": "0x-json-schemas-py",
+    "build_command": "python setup.py build_sphinx",
+    "upload_directory": "build/docs/html",
+    "index_key": "index.html",
+    "error_key": "index.html",
+    "trailing_slashes": true,
+    "cache": 3600,
+    "aws_profile": "default",
+    "aws_region": "us-east-1",
+    "cdn": false,
+    "dns_configured": true
+}
diff --git a/python-packages/json_schemas/.pylintrc b/python-packages/json_schemas/.pylintrc
new file mode 100644
index 000000000..937bc6313
--- /dev/null
+++ b/python-packages/json_schemas/.pylintrc
@@ -0,0 +1,3 @@
+[MESSAGES CONTROL]
+disable=C0330,line-too-long,fixme,too-few-public-methods,too-many-ancestors
+# C0330 is "bad hanging indent". we use indents per `black`.
diff --git a/python-packages/json_schemas/README.md b/python-packages/json_schemas/README.md
new file mode 100644
index 000000000..29b18baea
--- /dev/null
+++ b/python-packages/json_schemas/README.md
@@ -0,0 +1,43 @@
+## 0x-json-schemas
+
+0x JSON schemas for those developing on top of 0x protocol.
+
+Read the [documentation](http://0x-json-schemas-py.s3-website-us-east-1.amazonaws.com/)
+
+## Installing
+
+```bash
+pip install 0x-json-schemas
+```
+
+## Contributing
+
+We welcome improvements and fixes from the wider community! To report bugs within this package, please create an issue in this repository.
+
+Please read our [contribution guidelines](../../CONTRIBUTING.md) before getting started.
+
+### Install Code and Dependencies
+
+```bash
+pip install -e .[dev]
+```
+
+### Test
+
+`./setup.py test`.
+
+### Clean
+
+`./setup.py clean --all`
+
+### Lint
+
+`./setup.py lint`
+
+### Build Documentation
+
+`./setup.py build_sphinx`
+
+### More
+
+See `./setup.py --help-commands` for more info.
diff --git a/python-packages/json_schemas/setup.py b/python-packages/json_schemas/setup.py
new file mode 100755
index 000000000..389d14591
--- /dev/null
+++ b/python-packages/json_schemas/setup.py
@@ -0,0 +1,200 @@
+#!/usr/bin/env python
+
+"""setuptools module for json_schemas package."""
+
+import distutils.command.build_py
+from distutils.command.clean import clean
+import subprocess  # nosec
+from shutil import rmtree
+from os import environ, path
+from sys import argv
+
+from setuptools import find_packages, setup
+from setuptools.command.test import test as TestCommand
+
+
+class TestCommandExtension(TestCommand):
+    """Run pytest tests."""
+
+    def run_tests(self):
+        """Invoke pytest."""
+        import pytest
+
+        exit(pytest.main(["--doctest-modules"]))
+
+
+class LintCommand(distutils.command.build_py.build_py):
+    """Custom setuptools command class for running linters."""
+
+    description = "Run linters"
+
+    def run(self):
+        """Run linter shell commands."""
+        lint_commands = [
+            # formatter:
+            "black --line-length 79 --check --diff src test setup.py".split(),
+            # style guide checker (formerly pep8):
+            "pycodestyle src test setup.py".split(),
+            # docstring style checker:
+            "pydocstyle src test setup.py".split(),
+            # static type checker:
+            "mypy src test setup.py".split(),
+            # security issue checker:
+            "bandit -r src ./setup.py".split(),
+            # HACK: ensure json schemas don't differ from the authoritative
+            # copies: this is a hack.  ideally we would symlink to the
+            # authoritative copies, but a problem with setuptools is preventing
+            # it from following symlinks when gathering package_data.  see
+            # https://github.com/pypa/setuptools/issues/415.
+            (
+                "diff src/zero_ex/json_schemas/schemas"
+                + " ../../packages/json-schemas/schemas"
+            ).split(),
+            # general linter:
+            "pylint src test setup.py".split(),
+            # pylint takes relatively long to run, so it runs last, to enable
+            # fast failures.
+        ]
+
+        # tell mypy where to find interface stubs for 3rd party libs
+        environ["MYPYPATH"] = path.join(
+            path.dirname(path.realpath(argv[0])), "stubs"
+        )
+
+        for lint_command in lint_commands:
+            print(
+                "Running lint command `", " ".join(lint_command).strip(), "`"
+            )
+            subprocess.check_call(lint_command)  # nosec
+
+
+class CleanCommandExtension(clean):
+    """Custom command to do custom cleanup."""
+
+    def run(self):
+        """Run the regular clean, followed by our custom commands."""
+        super().run()
+        rmtree("dist", ignore_errors=True)
+        rmtree(".mypy_cache", ignore_errors=True)
+        rmtree(".tox", ignore_errors=True)
+        rmtree(".pytest_cache", ignore_errors=True)
+        rmtree("src/*.egg-info", ignore_errors=True)
+
+
+class TestPublishCommand(distutils.command.build_py.build_py):
+    """Custom command to publish to test.pypi.org."""
+
+    description = (
+        "Publish dist/* to test.pypi.org. Run sdist & bdist_wheel first."
+    )
+
+    def run(self):
+        """Run twine to upload to test.pypi.org."""
+        subprocess.check_call(  # nosec
+            (
+                "twine upload --repository-url https://test.pypi.org/legacy/"
+                + " --verbose dist/*"
+            ).split()
+        )
+
+
+class PublishCommand(distutils.command.build_py.build_py):
+    """Custom command to publish to pypi.org."""
+
+    description = "Publish dist/* to pypi.org. Run sdist & bdist_wheel first."
+
+    def run(self):
+        """Run twine to upload to pypi.org."""
+        subprocess.check_call("twine upload dist/*".split())  # nosec
+
+
+class PublishDocsCommand(distutils.command.build_py.build_py):
+    """Custom command to publish docs to S3."""
+
+    description = (
+        "Publish docs to "
+        + "http://0x-json-schemas-py.s3-website-us-east-1.amazonaws.com/"
+    )
+
+    def run(self):
+        """Run npm package `discharge` to build & upload docs."""
+        subprocess.check_call("discharge deploy".split())  # nosec
+
+
+with open("README.md", "r") as file_handle:
+    README_MD = file_handle.read()
+
+
+setup(
+    name="0x-json-schemas",
+    version="1.0.0",
+    description="JSON schemas for 0x applications",
+    long_description=README_MD,
+    long_description_content_type="text/markdown",
+    url=(
+        "https://github.com/0xProject/0x-monorepo/tree/development"
+        + "/python-packages/json_schemas"
+    ),
+    author="F. Eugene Aumson",
+    author_email="feuGeneA@users.noreply.github.com",
+    cmdclass={
+        "clean": CleanCommandExtension,
+        "lint": LintCommand,
+        "test": TestCommandExtension,
+        "test_publish": TestPublishCommand,
+        "publish": PublishCommand,
+        "publish_docs": PublishDocsCommand,
+    },
+    install_requires=["jsonschema", "mypy_extensions", "stringcase"],
+    extras_require={
+        "dev": [
+            "bandit",
+            "black",
+            "coverage",
+            "coveralls",
+            "mypy",
+            "mypy_extensions",
+            "pycodestyle",
+            "pydocstyle",
+            "pylint",
+            "pytest",
+            "sphinx",
+            "tox",
+            "twine",
+        ]
+    },
+    python_requires=">=3.6, <4",
+    package_data={"zero_ex.json_schemas": ["py.typed", "schemas/*"]},
+    package_dir={"": "src"},
+    license="Apache 2.0",
+    keywords=(
+        "ethereum cryptocurrency 0x decentralized blockchain dex exchange"
+    ),
+    namespace_packages=["zero_ex"],
+    packages=find_packages("src"),
+    classifiers=[
+        "Development Status :: 2 - Pre-Alpha",
+        "Intended Audience :: Developers",
+        "Intended Audience :: Financial and Insurance Industry",
+        "License :: OSI Approved :: Apache Software License",
+        "Natural Language :: English",
+        "Operating System :: OS Independent",
+        "Programming Language :: Python",
+        "Programming Language :: Python :: 3 :: Only",
+        "Programming Language :: Python :: 3.6",
+        "Programming Language :: Python :: 3.7",
+        "Topic :: Internet :: WWW/HTTP",
+        "Topic :: Office/Business :: Financial",
+        "Topic :: Other/Nonlisted Topic",
+        "Topic :: Security :: Cryptography",
+        "Topic :: Software Development :: Libraries",
+        "Topic :: Utilities",
+    ],
+    zip_safe=False,  # required per mypy
+    command_options={
+        "build_sphinx": {
+            "source_dir": ("setup.py", "src"),
+            "build_dir": ("setup.py", "build/docs"),
+        }
+    },
+)
diff --git a/python-packages/json_schemas/src/conf.py b/python-packages/json_schemas/src/conf.py
new file mode 100644
index 000000000..1ae1493e3
--- /dev/null
+++ b/python-packages/json_schemas/src/conf.py
@@ -0,0 +1,54 @@
+"""Configuration file for the Sphinx documentation builder."""
+
+# Reference: http://www.sphinx-doc.org/en/master/config
+
+from typing import List
+import pkg_resources
+
+
+# pylint: disable=invalid-name
+# because these variables are not named in upper case, as globals should be.
+
+project = "0x-json-schemas"
+# pylint: disable=redefined-builtin
+copyright = "2018, ZeroEx, Intl."
+author = "F. Eugene Aumson"
+version = pkg_resources.get_distribution("0x-json-schemas").version
+release = ""  # The full version, including alpha/beta/rc tags
+
+extensions = [
+    "sphinx.ext.autodoc",
+    "sphinx.ext.doctest",
+    "sphinx.ext.intersphinx",
+    "sphinx.ext.coverage",
+    "sphinx.ext.viewcode",
+]
+
+templates_path = ["doc_templates"]
+
+source_suffix = ".rst"
+# eg: source_suffix = [".rst", ".md"]
+
+master_doc = "index"  # The master toctree document.
+
+language = None
+
+exclude_patterns: List[str] = []
+
+# The name of the Pygments (syntax highlighting) style to use.
+pygments_style = None
+
+html_theme = "alabaster"
+
+html_static_path = ["doc_static"]
+# Add any paths that contain custom static files (such as style sheets) here,
+# relative to this directory. They are copied after the builtin static files,
+# so a file named "default.css" will overwrite the builtin "default.css".
+
+# Output file base name for HTML help builder.
+htmlhelp_basename = "json_schemaspydoc"
+
+# -- Extension configuration:
+
+# Example configuration for intersphinx: refer to the Python standard library.
+intersphinx_mapping = {"https://docs.python.org/": None}
diff --git a/python-packages/json_schemas/src/doc_static/.gitkeep b/python-packages/json_schemas/src/doc_static/.gitkeep
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/python-packages/json_schemas/src/doc_static/.gitkeep
diff --git a/python-packages/json_schemas/src/index.rst b/python-packages/json_schemas/src/index.rst
new file mode 100644
index 000000000..3de809aa3
--- /dev/null
+++ b/python-packages/json_schemas/src/index.rst
@@ -0,0 +1,18 @@
+.. source for the sphinx-generated build/docs/web/index.html
+
+Python zero_ex.json_schemas
+===========================
+
+.. toctree::
+   :maxdepth: 2
+   :caption: Contents:
+
+.. automodule:: zero_ex.json_schemas
+   :members:
+
+Indices and tables
+==================
+
+* :ref:`genindex`
+* :ref:`modindex`
+* :ref:`search`
diff --git a/python-packages/json_schemas/src/zero_ex/__init__.py b/python-packages/json_schemas/src/zero_ex/__init__.py
new file mode 100644
index 000000000..e90d833db
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/__init__.py
@@ -0,0 +1,2 @@
+"""0x Python API."""
+__import__("pkg_resources").declare_namespace(__name__)
diff --git a/python-packages/order_utils/src/zero_ex/json_schemas/__init__.py b/python-packages/json_schemas/src/zero_ex/json_schemas/__init__.py
index a76a2fa3b..10c564b99 100644
--- a/python-packages/order_utils/src/zero_ex/json_schemas/__init__.py
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/__init__.py
@@ -6,6 +6,7 @@ from typing import Mapping
 
 from pkg_resources import resource_string
 import jsonschema
+from stringcase import snakecase
 
 
 class _LocalRefResolver(jsonschema.RefResolver):
@@ -13,20 +14,10 @@ class _LocalRefResolver(jsonschema.RefResolver):
 
     def __init__(self):
         """Initialize a new instance."""
-        self.ref_to_file = {
-            "/addressSchema": "address_schema.json",
-            "/hexSchema": "hex_schema.json",
-            "/orderSchema": "order_schema.json",
-            "/wholeNumberSchema": "whole_number_schema.json",
-            "/ECSignature": "ec_signature_schema.json",
-            "/signedOrderSchema": "signed_order_schema.json",
-            "/ecSignatureParameterSchema": (
-                "ec_signature_parameter_schema.json" + ""
-            ),
-        }
         jsonschema.RefResolver.__init__(self, "", "")
 
-    def resolve_from_url(self, url: str) -> str:
+    @staticmethod
+    def resolve_from_url(url: str) -> str:
         """Resolve the given URL.
 
         :param url: a string representing the URL of the JSON schema to fetch.
@@ -35,15 +26,11 @@ class _LocalRefResolver(jsonschema.RefResolver):
                    `url` does not exist.
         """
         ref = url.replace("file://", "")
-        if ref in self.ref_to_file:
-            return json.loads(
-                resource_string(
-                    "zero_ex.json_schemas", f"schemas/{self.ref_to_file[ref]}"
-                )
+        return json.loads(
+            resource_string(
+                "zero_ex.json_schemas",
+                f"schemas/{snakecase(ref.lstrip('/'))}.json",
             )
-        raise jsonschema.ValidationError(
-            f"Unknown ref '{ref}'. "
-            + f"Known refs: {list(self.ref_to_file.keys())}."
         )
 
 
@@ -65,10 +52,32 @@ def assert_valid(data: Mapping, schema_id: str) -> None:
 
     >>> assert_valid(
     ...     {'v': 27, 'r': '0x'+'f'*64, 's': '0x'+'f'*64},
-    ...     '/ECSignature',
+    ...     '/ecSignatureSchema',
     ... )
     """
     # noqa
 
     _, schema = _LOCAL_RESOLVER.resolve(schema_id)
     jsonschema.validate(data, schema, resolver=_LOCAL_RESOLVER)
+
+
+def assert_valid_json(data: str, schema_id: str) -> None:
+    """Validate the given `data` against the specified `schema`.
+
+    :param data: JSON string to be validated.
+    :param schema_id: id property of the JSON schema to validate against.  Must
+        be one of those listed in `the 0x JSON schema files
+        <https://github.com/0xProject/0x-monorepo/tree/development/packages/json-schemas/schemas>`_.
+
+    Raises an exception if validation fails.
+
+    >>> assert_valid_json(
+    ...     r'''{
+    ...         "v": 27,
+    ...         "r": "0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
+    ...         "s": "0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
+    ...     }''',
+    ...     '/ecSignatureSchema',
+    ... )
+    """  # noqa: E501 (line too long)
+    assert_valid(json.loads(data), schema_id)
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/py.typed b/python-packages/json_schemas/src/zero_ex/json_schemas/py.typed
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/py.typed
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/address_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/address_schema.json
new file mode 100644
index 000000000..0dc02d331
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/address_schema.json
@@ -0,0 +1,5 @@
+{
+    "id": "/addressSchema",
+    "type": "string",
+    "pattern": "^0x[0-9a-f]{40}$"
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/asset_pairs_request_opts_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/asset_pairs_request_opts_schema.json
new file mode 100644
index 000000000..fad0bd371
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/asset_pairs_request_opts_schema.json
@@ -0,0 +1,8 @@
+{
+    "id": "/AssetPairsRequestOptsSchema",
+    "type": "object",
+    "properties": {
+        "assetDataA": { "$ref": "/hexSchema" },
+        "assetDataB": { "$ref": "/hexSchema" }
+    }
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/block_param_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/block_param_schema.json
new file mode 100644
index 000000000..ed4dd1e87
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/block_param_schema.json
@@ -0,0 +1,11 @@
+{
+    "id": "/blockParamSchema",
+    "oneOf": [
+        {
+            "type": "number"
+        },
+        {
+            "enum": ["latest", "earliest", "pending"]
+        }
+    ]
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/block_range_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/block_range_schema.json
new file mode 100644
index 000000000..b14294649
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/block_range_schema.json
@@ -0,0 +1,8 @@
+{
+    "id": "/blockRangeSchema",
+    "properties": {
+        "fromBlock": { "$ref": "/blockParamSchema" },
+        "toBlock": { "$ref": "/blockParamSchema" }
+    },
+    "type": "object"
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/call_data_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/call_data_schema.json
new file mode 100644
index 000000000..e5e6e3282
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/call_data_schema.json
@@ -0,0 +1,27 @@
+{
+    "id": "/callDataSchema",
+    "properties": {
+        "from": { "$ref": "/addressSchema" },
+        "to": { "$ref": "/addressSchema" },
+        "value": {
+            "oneOf": [{ "$ref": "/numberSchema" }, { "$ref": "/jsNumberSchema" }]
+        },
+        "gas": {
+            "oneOf": [{ "$ref": "/numberSchema" }, { "$ref": "/jsNumberSchema" }]
+        },
+        "gasPrice": {
+            "oneOf": [{ "$ref": "/numberSchema" }, { "$ref": "/jsNumberSchema" }]
+        },
+        "data": {
+            "type": "string",
+            "pattern": "^0x[0-9a-f]*$"
+        },
+        "nonce": {
+            "type": "number",
+            "minimum": 0
+        }
+    },
+    "required": [],
+    "type": "object",
+    "additionalProperties": false
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/ec_signature_parameter_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/ec_signature_parameter_schema.json
new file mode 100644
index 000000000..0c08ec240
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/ec_signature_parameter_schema.json
@@ -0,0 +1,5 @@
+{
+    "id": "/ecSignatureParameterSchema",
+    "type": "string",
+    "pattern": "^0[xX][0-9A-Fa-f]{64}$"
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/ec_signature_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/ec_signature_schema.json
new file mode 100644
index 000000000..52ccfe7bb
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/ec_signature_schema.json
@@ -0,0 +1,14 @@
+{
+    "id": "/ecSignatureSchema",
+    "properties": {
+        "v": {
+            "type": "number",
+            "minimum": 27,
+            "maximum": 28
+        },
+        "r": { "$ref": "/ecSignatureParameterSchema" },
+        "s": { "$ref": "/ecSignatureParameterSchema" }
+    },
+    "required": ["v", "r", "s"],
+    "type": "object"
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/eip712_typed_data_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/eip712_typed_data_schema.json
new file mode 100644
index 000000000..8efd6de44
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/eip712_typed_data_schema.json
@@ -0,0 +1,28 @@
+{
+    "id": "/eip712TypedDataSchema",
+    "type": "object",
+    "properties": {
+        "types": {
+            "type": "object",
+            "properties": {
+                "EIP712Domain": { "type": "array" }
+            },
+            "additionalProperties": {
+                "type": "array",
+                "items": {
+                    "type": "object",
+                    "properties": {
+                        "name": { "type": "string" },
+                        "type": { "type": "string" }
+                    },
+                    "required": ["name", "type"]
+                }
+            },
+            "required": ["EIP712Domain"]
+        },
+        "primaryType": { "type": "string" },
+        "domain": { "type": "object" },
+        "message": { "type": "object" }
+    },
+    "required": ["types", "primaryType", "domain", "message"]
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/hex_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/hex_schema.json
new file mode 100644
index 000000000..f37815d5b
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/hex_schema.json
@@ -0,0 +1,5 @@
+{
+    "id": "/hexSchema",
+    "type": "string",
+    "pattern": "^0x(([0-9a-f][0-9a-f])+)?$"
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/index_filter_values_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/index_filter_values_schema.json
new file mode 100644
index 000000000..bec00d79e
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/index_filter_values_schema.json
@@ -0,0 +1,7 @@
+{
+    "id": "/indexFilterValuesSchema",
+    "additionalProperties": {
+        "oneOf": [{ "$ref": "/numberSchema" }, { "$ref": "/addressSchema" }, { "$ref": "/orderHashSchema" }]
+    },
+    "type": "object"
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/js_number_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/js_number_schema.json
new file mode 100644
index 000000000..7df1c4747
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/js_number_schema.json
@@ -0,0 +1,5 @@
+{
+    "id": "/jsNumberSchema",
+    "type": "number",
+    "minimum": 0
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/number_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/number_schema.json
new file mode 100644
index 000000000..a48f3e8cf
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/number_schema.json
@@ -0,0 +1,5 @@
+{
+    "id": "/numberSchema",
+    "type": "string",
+    "pattern": "^\\d+(\\.\\d+)?$"
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/order_cancel_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/order_cancel_schema.json
new file mode 100644
index 000000000..8d0999941
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/order_cancel_schema.json
@@ -0,0 +1,12 @@
+{
+    "id": "/orderCancellationRequestsSchema",
+    "type": "array",
+    "items": {
+        "properties": {
+            "order": { "$ref": "/orderSchema" },
+            "takerTokenCancelAmount": { "$ref": "/wholeNumberSchema" }
+        },
+        "required": ["order", "takerTokenCancelAmount"],
+        "type": "object"
+    }
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/order_config_request_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/order_config_request_schema.json
new file mode 100644
index 000000000..19b043e7f
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/order_config_request_schema.json
@@ -0,0 +1,24 @@
+{
+    "id": "/OrderConfigRequestSchema",
+    "type": "object",
+    "properties": {
+        "makerAddress": { "$ref": "/addressSchema" },
+        "takerAddress": { "$ref": "/addressSchema" },
+        "makerAssetAmount": { "$ref": "/wholeNumberSchema" },
+        "takerAssetAmount": { "$ref": "/wholeNumberSchema" },
+        "makerAssetData": { "$ref": "/hexSchema" },
+        "takerAssetData": { "$ref": "/hexSchema" },
+        "exchangeAddress": { "$ref": "/addressSchema" },
+        "expirationTimeSeconds": { "$ref": "/wholeNumberSchema" }
+    },
+    "required": [
+        "makerAddress",
+        "takerAddress",
+        "makerAssetAmount",
+        "takerAssetAmount",
+        "makerAssetData",
+        "takerAssetData",
+        "exchangeAddress",
+        "expirationTimeSeconds"
+    ]
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/order_fill_or_kill_requests_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/order_fill_or_kill_requests_schema.json
new file mode 100644
index 000000000..73bbf20bb
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/order_fill_or_kill_requests_schema.json
@@ -0,0 +1,12 @@
+{
+    "id": "/orderFillOrKillRequestsSchema",
+    "type": "array",
+    "items": {
+        "properties": {
+            "signedOrder": { "$ref": "/signedOrderSchema" },
+            "fillTakerAmount": { "$ref": "/wholeNumberSchema" }
+        },
+        "required": ["signedOrder", "fillTakerAmount"],
+        "type": "object"
+    }
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/order_fill_requests_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/order_fill_requests_schema.json
new file mode 100644
index 000000000..d06fb19a2
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/order_fill_requests_schema.json
@@ -0,0 +1,12 @@
+{
+    "id": "/orderFillRequestsSchema",
+    "type": "array",
+    "items": {
+        "properties": {
+            "signedOrder": { "$ref": "/signedOrderSchema" },
+            "takerTokenFillAmount": { "$ref": "/wholeNumberSchema" }
+        },
+        "required": ["signedOrder", "takerTokenFillAmount"],
+        "type": "object"
+    }
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/order_hash_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/order_hash_schema.json
new file mode 100644
index 000000000..4a770579f
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/order_hash_schema.json
@@ -0,0 +1,5 @@
+{
+    "id": "/orderHashSchema",
+    "type": "string",
+    "pattern": "^0x[0-9a-fA-F]{64}$"
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/order_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/order_schema.json
new file mode 100644
index 000000000..c70b9e2dd
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/order_schema.json
@@ -0,0 +1,34 @@
+{
+    "id": "/orderSchema",
+    "properties": {
+        "makerAddress": { "$ref": "/addressSchema" },
+        "takerAddress": { "$ref": "/addressSchema" },
+        "makerFee": { "$ref": "/wholeNumberSchema" },
+        "takerFee": { "$ref": "/wholeNumberSchema" },
+        "senderAddress": { "$ref": "/addressSchema" },
+        "makerAssetAmount": { "$ref": "/wholeNumberSchema" },
+        "takerAssetAmount": { "$ref": "/wholeNumberSchema" },
+        "makerAssetData": { "$ref": "/hexSchema" },
+        "takerAssetData": { "$ref": "/hexSchema" },
+        "salt": { "$ref": "/wholeNumberSchema" },
+        "exchangeAddress": { "$ref": "/addressSchema" },
+        "feeRecipientAddress": { "$ref": "/addressSchema" },
+        "expirationTimeSeconds": { "$ref": "/wholeNumberSchema" }
+    },
+    "required": [
+        "makerAddress",
+        "takerAddress",
+        "makerFee",
+        "takerFee",
+        "senderAddress",
+        "makerAssetAmount",
+        "takerAssetAmount",
+        "makerAssetData",
+        "takerAssetData",
+        "salt",
+        "exchangeAddress",
+        "feeRecipientAddress",
+        "expirationTimeSeconds"
+    ],
+    "type": "object"
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/order_watcher_web_socket_request_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/order_watcher_web_socket_request_schema.json
new file mode 100644
index 000000000..b0c419f94
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/order_watcher_web_socket_request_schema.json
@@ -0,0 +1,52 @@
+{
+    "id": "/orderWatcherWebSocketRequestSchema",
+    "type": "object",
+    "definitions": {
+        "signedOrderParam": {
+            "type": "object",
+            "properties": {
+                "signedOrder": { "$ref": "/signedOrderSchema" }
+            },
+            "required": ["signedOrder"]
+        },
+        "orderHashParam": {
+            "type": "object",
+            "properties": {
+                "orderHash": { "$ref": "/hexSchema" }
+            },
+            "required": ["orderHash"]
+        }
+    },
+    "oneOf": [
+        {
+            "type": "object",
+            "properties": {
+                "id": { "type": "number" },
+                "jsonrpc": { "type": "string" },
+                "method": { "enum": ["ADD_ORDER"] },
+                "params": { "$ref": "#/definitions/signedOrderParam" }
+            },
+            "required": ["id", "jsonrpc", "method", "params"]
+        },
+        {
+            "type": "object",
+            "properties": {
+                "id": { "type": "number" },
+                "jsonrpc": { "type": "string" },
+                "method": { "enum": ["REMOVE_ORDER"] },
+                "params": { "$ref": "#/definitions/orderHashParam" }
+            },
+            "required": ["id", "jsonrpc", "method", "params"]
+        },
+        {
+            "type": "object",
+            "properties": {
+                "id": { "type": "number" },
+                "jsonrpc": { "type": "string" },
+                "method": { "enum": ["GET_STATS"] },
+                "params": {}
+            },
+            "required": ["id", "jsonrpc", "method"]
+        }
+    ] 
+}
\ No newline at end of file
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/order_watcher_web_socket_utf8_message_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/order_watcher_web_socket_utf8_message_schema.json
new file mode 100644
index 000000000..154d6d754
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/order_watcher_web_socket_utf8_message_schema.json
@@ -0,0 +1,10 @@
+{
+    "id": "/orderWatcherWebSocketUtf8MessageSchema",
+    "properties": {
+        "utf8Data": { "type": "string" }
+    },
+    "required": [
+        "utf8Data"
+    ],
+    "type": "object"
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/orderbook_request_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/orderbook_request_schema.json
new file mode 100644
index 000000000..5ce6e8ab0
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/orderbook_request_schema.json
@@ -0,0 +1,9 @@
+{
+    "id": "/OrderbookRequestSchema",
+    "type": "object",
+    "properties": {
+        "baseAssetData": { "$ref": "/hexSchema" },
+        "quoteAssetData": { "$ref": "/hexSchema" }
+    },
+    "required": ["baseAssetData", "quoteAssetData"]
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/orders_request_opts_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/orders_request_opts_schema.json
new file mode 100644
index 000000000..4c1b9b4e9
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/orders_request_opts_schema.json
@@ -0,0 +1,19 @@
+{
+    "id": "/OrdersRequestOptsSchema",
+    "type": "object",
+    "properties": {
+        "makerAssetProxyId": { "$ref": "/hexSchema" },
+        "takerAssetProxyId": { "$ref": "/hexSchema" },
+        "makerAssetAddress": { "$ref": "/addressSchema" },
+        "takerAssetAddress": { "$ref": "/addressSchema" },
+        "exchangeAddress": { "$ref": "/addressSchema" },
+        "senderAddress": { "$ref": "/addressSchema" },
+        "makerAssetData": { "$ref": "/hexSchema" },
+        "takerAssetData": { "$ref": "/hexSchema" },
+        "traderAssetData": { "$ref": "/hexSchema" },
+        "makerAddress": { "$ref": "/addressSchema" },
+        "takerAddress": { "$ref": "/addressSchema" },
+        "traderAddress": { "$ref": "/addressSchema" },
+        "feeRecipientAddress": { "$ref": "/addressSchema" }
+    }
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/orders_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/orders_schema.json
new file mode 100644
index 000000000..1e1c6a875
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/orders_schema.json
@@ -0,0 +1,5 @@
+{
+    "id": "/ordersSchema",
+    "type": "array",
+    "items": { "$ref": "/orderSchema" }
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/paged_request_opts_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/paged_request_opts_schema.json
new file mode 100644
index 000000000..f143c28b0
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/paged_request_opts_schema.json
@@ -0,0 +1,8 @@
+{
+    "id": "/PagedRequestOptsSchema",
+    "type": "object",
+    "properties": {
+        "page": { "type": "number" },
+        "perPage": { "type": "number" }
+    }
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/paginated_collection_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/paginated_collection_schema.json
new file mode 100644
index 000000000..9dcedf5b4
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/paginated_collection_schema.json
@@ -0,0 +1,10 @@
+{
+    "id": "/paginatedCollectionSchema",
+    "type": "object",
+    "properties": {
+        "total": { "type": "number" },
+        "perPage": { "type": "number" },
+        "page": { "type": "number" }
+    },
+    "required": ["total", "perPage", "page"]
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_asset_data_pairs_response_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_asset_data_pairs_response_schema.json
new file mode 100644
index 000000000..d1150d3db
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_asset_data_pairs_response_schema.json
@@ -0,0 +1,13 @@
+{
+    "id": "/relayerApiAssetDataPairsResponseSchema",
+    "type": "object",
+    "allOf": [
+        { "$ref": "/paginatedCollectionSchema" },
+        {
+            "properties": {
+                "records": { "$ref": "/relayerApiAssetDataPairsSchema" }
+            },
+            "required": ["records"]
+        }
+    ]
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_asset_data_pairs_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_asset_data_pairs_schema.json
new file mode 100644
index 000000000..62d4745b8
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_asset_data_pairs_schema.json
@@ -0,0 +1,12 @@
+{
+    "id": "/relayerApiAssetDataPairsSchema",
+    "type": "array",
+    "items": {
+        "properties": {
+            "assetDataA": { "$ref": "/relayerApiAssetDataTradeInfoSchema" },
+            "assetDataB": { "$ref": "/relayerApiAssetDataTradeInfoSchema" }
+        },
+        "required": ["assetDataA", "assetDataB"],
+        "type": "object"
+    }
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_asset_data_trade_info_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_asset_data_trade_info_schema.json
new file mode 100644
index 000000000..e0f274c5d
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_asset_data_trade_info_schema.json
@@ -0,0 +1,11 @@
+{
+    "id": "/relayerApiAssetDataTradeInfoSchema",
+    "type": "object",
+    "properties": {
+        "assetData": { "$ref": "/hexSchema" },
+        "minAmount": { "$ref": "/wholeNumberSchema" },
+        "maxAmount": { "$ref": "/wholeNumberSchema" },
+        "precision": { "type": "number" }
+    },
+    "required": ["assetData"]
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_error_response_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_error_response_schema.json
new file mode 100644
index 000000000..be4659b0b
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_error_response_schema.json
@@ -0,0 +1,21 @@
+{
+    "id": "/relayerApiErrorResponseSchema",
+    "type": "object",
+    "properties": {
+        "code": { "type": "integer", "minimum": 100, "maximum": 103 },
+        "reason": { "type": "string" },
+        "validationErrors": {
+            "type": "array",
+            "items": {
+                "type": "object",
+                "properties": {
+                    "field": { "type": "string" },
+                    "code": { "type": "integer", "minimum": 1000, "maximum": 1006 },
+                    "reason": { "type": "string" }
+                },
+                "required": ["field", "code", "reason"]
+            }
+        }
+    },
+    "required": ["code", "reason"]
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_fee_recipients_response_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_fee_recipients_response_schema.json
new file mode 100644
index 000000000..c73506dbb
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_fee_recipients_response_schema.json
@@ -0,0 +1,16 @@
+{
+    "id": "/relayerApiFeeRecipientsResponseSchema",
+    "type": "object",
+    "allOf": [
+        { "$ref": "/paginatedCollectionSchema" },
+        {
+            "properties": {
+                "records": {
+                    "type": "array",
+                    "items": { "$ref": "/addressSchema" }
+                }
+            },
+            "required": ["records"]
+        }
+    ]
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_order_config_payload_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_order_config_payload_schema.json
new file mode 100644
index 000000000..f4583fc62
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_order_config_payload_schema.json
@@ -0,0 +1,24 @@
+{
+    "id": "/relayerApiOrderConfigPayloadSchema",
+    "type": "object",
+    "properties": {
+        "makerAddress": { "$ref": "/addressSchema" },
+        "takerAddress": { "$ref": "/addressSchema" },
+        "makerAssetAmount": { "$ref": "/wholeNumberSchema" },
+        "takerAssetAmount": { "$ref": "/wholeNumberSchema" },
+        "makerAssetData": { "$ref": "/hexSchema" },
+        "takerAssetData": { "$ref": "/hexSchema" },
+        "exchangeAddress": { "$ref": "/addressSchema" },
+        "expirationTimeSeconds": { "$ref": "/wholeNumberSchema" }
+    },
+    "required": [
+        "makerAddress",
+        "takerAddress",
+        "makerAssetAmount",
+        "takerAssetAmount",
+        "makerAssetData",
+        "takerAssetData",
+        "exchangeAddress",
+        "expirationTimeSeconds"
+    ]
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_order_config_response_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_order_config_response_schema.json
new file mode 100644
index 000000000..8193861e1
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_order_config_response_schema.json
@@ -0,0 +1,11 @@
+{
+    "id": "/relayerApiOrderConfigResponseSchema",
+    "type": "object",
+    "properties": {
+        "makerFee": { "$ref": "/wholeNumberSchema" },
+        "takerFee": { "$ref": "/wholeNumberSchema" },
+        "feeRecipientAddress": { "$ref": "/addressSchema" },
+        "senderAddress": { "$ref": "/addressSchema" }
+    },
+    "required": ["makerFee", "takerFee", "feeRecipientAddress", "senderAddress"]
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_order_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_order_schema.json
new file mode 100644
index 000000000..e0f6539b9
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_order_schema.json
@@ -0,0 +1,9 @@
+{
+    "id": "/relayerApiOrderSchema",
+    "type": "object",
+    "properties": {
+        "order": { "$ref": "/orderSchema" },
+        "metaData": { "type": "object" }
+    },
+    "required": ["order", "metaData"]
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_orderbook_response_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_orderbook_response_schema.json
new file mode 100644
index 000000000..b44f2a740
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_orderbook_response_schema.json
@@ -0,0 +1,9 @@
+{
+    "id": "/relayerApiOrderbookResponseSchema",
+    "type": "object",
+    "properties": {
+        "bids": { "$ref": "/relayerApiOrdersResponseSchema" },
+        "asks": { "$ref": "/relayerApiOrdersResponseSchema" }
+    },
+    "required": ["bids", "asks"]
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_orders_channel_subscribe_payload_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_orders_channel_subscribe_payload_schema.json
new file mode 100644
index 000000000..274ef1625
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_orders_channel_subscribe_payload_schema.json
@@ -0,0 +1,14 @@
+{
+    "id": "/relayerApiOrdersChannelSubscribePayloadSchema",
+    "type": "object",
+    "properties": {
+        "makerAssetProxyId": { "$ref": "/hexSchema" },
+        "takerAssetProxyId": { "$ref": "/hexSchema" },
+        "networkId": { "type": "number" },
+        "makerAssetAddress": { "$ref": "/addressSchema" },
+        "takerAssetAddress": { "$ref": "/addressSchema" },
+        "makerAssetData": { "$ref": "/hexSchema" },
+        "takerAssetData": { "$ref": "/hexSchema" },
+        "traderAssetData": { "$ref": "/hexSchema" }
+    }
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_orders_channel_subscribe_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_orders_channel_subscribe_schema.json
new file mode 100644
index 000000000..29561d09f
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_orders_channel_subscribe_schema.json
@@ -0,0 +1,11 @@
+{
+    "id": "/relayerApiOrdersChannelSubscribeSchema",
+    "type": "object",
+    "properties": {
+        "type": { "enum": ["subscribe"] },
+        "channel": { "enum": ["orders"] },
+        "requestId": { "type": "string" },
+        "payload": { "$ref": "/relayerApiOrdersChannelSubscribePayloadSchema" }
+    },
+    "required": ["type", "channel", "requestId"]
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_orders_channel_update_response_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_orders_channel_update_response_schema.json
new file mode 100644
index 000000000..239e7c586
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_orders_channel_update_response_schema.json
@@ -0,0 +1,11 @@
+{
+    "id": "/relayerApiOrdersChannelUpdateSchema",
+    "type": "object",
+    "properties": {
+        "type": { "enum": ["update"] },
+        "channel": { "enum": ["orders"] },
+        "requestId": { "type": "string" },
+        "payload": { "$ref": "/relayerApiOrdersSchema" }
+    },
+    "required": ["type", "channel", "requestId"]
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_orders_response_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_orders_response_schema.json
new file mode 100644
index 000000000..a5023a3fc
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_orders_response_schema.json
@@ -0,0 +1,13 @@
+{
+    "id": "/relayerApiOrdersResponseSchema",
+    "type": "object",
+    "allOf": [
+        { "$ref": "/paginatedCollectionSchema" },
+        {
+            "properties": {
+                "records": { "$ref": "/relayerApiOrdersSchema" }
+            },
+            "required": ["records"]
+        }
+    ]
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_orders_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_orders_schema.json
new file mode 100644
index 000000000..84e75cd04
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/relayer_api_orders_schema.json
@@ -0,0 +1,5 @@
+{
+    "id": "/relayerApiOrdersSchema",
+    "type": "array",
+    "items": { "$ref": "/relayerApiOrderSchema" }
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/request_opts_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/request_opts_schema.json
new file mode 100644
index 000000000..2206f5016
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/request_opts_schema.json
@@ -0,0 +1,7 @@
+{
+    "id": "/RequestOptsSchema",
+    "type": "object",
+    "properties": {
+        "networkId": { "type": "number" }
+    }
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/signed_order_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/signed_order_schema.json
new file mode 100644
index 000000000..137ae4a24
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/signed_order_schema.json
@@ -0,0 +1,12 @@
+{
+    "id": "/signedOrderSchema",
+    "allOf": [
+        { "$ref": "/orderSchema" },
+        {
+            "properties": {
+                "signature": { "$ref": "/hexSchema" }
+            },
+            "required": ["signature"]
+        }
+    ]
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/signed_orders_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/signed_orders_schema.json
new file mode 100644
index 000000000..e7c3a0b6c
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/signed_orders_schema.json
@@ -0,0 +1,5 @@
+{
+    "id": "/signedOrdersSchema",
+    "type": "array",
+    "items": { "$ref": "/signedOrderSchema" }
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/token_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/token_schema.json
new file mode 100644
index 000000000..31e41c4b8
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/token_schema.json
@@ -0,0 +1,11 @@
+{
+    "id": "/tokenSchema",
+    "properties": {
+        "name": { "type": "string" },
+        "symbol": { "type": "string" },
+        "decimals": { "type": "number" },
+        "address": { "$ref": "/addressSchema" }
+    },
+    "required": ["name", "symbol", "decimals", "address"],
+    "type": "object"
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/tx_data_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/tx_data_schema.json
new file mode 100644
index 000000000..8c3daba4e
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/tx_data_schema.json
@@ -0,0 +1,26 @@
+{
+    "id": "/txDataSchema",
+    "properties": {
+        "from": { "$ref": "/addressSchema" },
+        "to": { "$ref": "/addressSchema" },
+        "value": {
+            "oneOf": [{ "$ref": "/numberSchema" }, { "$ref": "/jsNumberSchema" }]
+        },
+        "gas": {
+            "oneOf": [{ "$ref": "/numberSchema" }, { "$ref": "/jsNumberSchema" }]
+        },
+        "gasPrice": {
+            "oneOf": [{ "$ref": "/numberSchema" }, { "$ref": "/jsNumberSchema" }]
+        },
+        "data": {
+            "type": "string",
+            "pattern": "^0x[0-9a-f]*$"
+        },
+        "nonce": {
+            "type": "number",
+            "minimum": 0
+        }
+    },
+    "required": ["from"],
+    "type": "object"
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/whole_number_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/whole_number_schema.json
new file mode 100644
index 000000000..aa469954c
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/whole_number_schema.json
@@ -0,0 +1,12 @@
+{
+    "id": "/wholeNumberSchema",
+    "anyOf": [
+        {
+            "type": "string",
+            "pattern": "^\\d+$"
+        },
+        {
+            "type": "integer"
+        }
+    ]
+}
diff --git a/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/zero_ex_transaction_schema.json b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/zero_ex_transaction_schema.json
new file mode 100644
index 000000000..0c714f14d
--- /dev/null
+++ b/python-packages/json_schemas/src/zero_ex/json_schemas/schemas/zero_ex_transaction_schema.json
@@ -0,0 +1,10 @@
+{
+    "id": "/zeroExTransactionSchema",
+    "properties": {
+        "data": { "$ref": "/hexSchema" },
+        "signerAddress": { "$ref": "/addressSchema" },
+        "salt": { "$ref": "/wholeNumberSchema" }
+    },
+    "required": ["data", "salt", "signerAddress"],
+    "type": "object"
+}
diff --git a/python-packages/json_schemas/stubs/distutils/__init__.pyi b/python-packages/json_schemas/stubs/distutils/__init__.pyi
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/python-packages/json_schemas/stubs/distutils/__init__.pyi
diff --git a/python-packages/json_schemas/stubs/distutils/command/__init__.pyi b/python-packages/json_schemas/stubs/distutils/command/__init__.pyi
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/python-packages/json_schemas/stubs/distutils/command/__init__.pyi
diff --git a/python-packages/json_schemas/stubs/distutils/command/clean.pyi b/python-packages/json_schemas/stubs/distutils/command/clean.pyi
new file mode 100644
index 000000000..46a42ddb1
--- /dev/null
+++ b/python-packages/json_schemas/stubs/distutils/command/clean.pyi
@@ -0,0 +1,7 @@
+from distutils.core import Command
+
+class clean(Command):
+    def initialize_options(self: clean) -> None: ...
+    def finalize_options(self: clean) -> None: ...
+    def run(self: clean) -> None: ...
+    ...
diff --git a/python-packages/order_utils/stubs/jsonschema/__init__.pyi b/python-packages/json_schemas/stubs/jsonschema/__init__.pyi
index 442e2f65e..442e2f65e 100644
--- a/python-packages/order_utils/stubs/jsonschema/__init__.pyi
+++ b/python-packages/json_schemas/stubs/jsonschema/__init__.pyi
diff --git a/python-packages/json_schemas/stubs/jsonschema/exceptions.pyi b/python-packages/json_schemas/stubs/jsonschema/exceptions.pyi
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/python-packages/json_schemas/stubs/jsonschema/exceptions.pyi
diff --git a/python-packages/json_schemas/stubs/pytest/__init__.pyi b/python-packages/json_schemas/stubs/pytest/__init__.pyi
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/python-packages/json_schemas/stubs/pytest/__init__.pyi
diff --git a/python-packages/json_schemas/stubs/pytest/raises.pyi b/python-packages/json_schemas/stubs/pytest/raises.pyi
new file mode 100644
index 000000000..2e3b29f3d
--- /dev/null
+++ b/python-packages/json_schemas/stubs/pytest/raises.pyi
@@ -0,0 +1 @@
+def raises(exception: Exception) -> ExceptionInfo: ...
diff --git a/python-packages/json_schemas/stubs/setuptools/__init__.pyi b/python-packages/json_schemas/stubs/setuptools/__init__.pyi
new file mode 100644
index 000000000..8ea8d32b7
--- /dev/null
+++ b/python-packages/json_schemas/stubs/setuptools/__init__.pyi
@@ -0,0 +1,8 @@
+from distutils.dist import Distribution
+from typing import Any, List
+
+def setup(**attrs: Any) -> Distribution: ...
+
+class Command: ...
+
+def find_packages(where: str) -> List[str]: ...
diff --git a/python-packages/json_schemas/stubs/setuptools/command/__init__.pyi b/python-packages/json_schemas/stubs/setuptools/command/__init__.pyi
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/python-packages/json_schemas/stubs/setuptools/command/__init__.pyi
diff --git a/python-packages/json_schemas/stubs/setuptools/command/test.pyi b/python-packages/json_schemas/stubs/setuptools/command/test.pyi
new file mode 100644
index 000000000..c5ec770ad
--- /dev/null
+++ b/python-packages/json_schemas/stubs/setuptools/command/test.pyi
@@ -0,0 +1,3 @@
+from setuptools import Command
+
+class test(Command): ...
diff --git a/python-packages/json_schemas/stubs/stringcase/__init__.pyi b/python-packages/json_schemas/stubs/stringcase/__init__.pyi
new file mode 100644
index 000000000..56d784cf5
--- /dev/null
+++ b/python-packages/json_schemas/stubs/stringcase/__init__.pyi
@@ -0,0 +1,2 @@
+def snakecase(_: str):
+    ...
diff --git a/python-packages/json_schemas/test/__init__.py b/python-packages/json_schemas/test/__init__.py
new file mode 100644
index 000000000..ce724e180
--- /dev/null
+++ b/python-packages/json_schemas/test/__init__.py
@@ -0,0 +1 @@
+"""Tests of zero_ex.json_schemas."""
diff --git a/python-packages/order_utils/test/test_json_schemas.py b/python-packages/json_schemas/test/test_json_schemas.py
index 51cecbd4f..1d1efdd12 100644
--- a/python-packages/order_utils/test/test_json_schemas.py
+++ b/python-packages/json_schemas/test/test_json_schemas.py
@@ -1,10 +1,29 @@
 """Tests of zero_ex.json_schemas"""
 
 
-from zero_ex.order_utils import make_empty_order
+from zero_ex.order_utils import make_empty_order, order_to_jsdict
 from zero_ex.json_schemas import _LOCAL_RESOLVER, assert_valid
 
 
+NULL_ADDRESS = "0x0000000000000000000000000000000000000000"
+
+EMPTY_ORDER = {
+    "makerAddress": NULL_ADDRESS,
+    "takerAddress": NULL_ADDRESS,
+    "senderAddress": NULL_ADDRESS,
+    "feeRecipientAddress": NULL_ADDRESS,
+    "makerAssetData": NULL_ADDRESS,
+    "takerAssetData": NULL_ADDRESS,
+    "salt": "0",
+    "makerFee": "0",
+    "takerFee": "0",
+    "makerAssetAmount": "0",
+    "takerAssetAmount": "0",
+    "expirationTimeSeconds": "0",
+    "exchangeAddress": NULL_ADDRESS,
+}
+
+
 def test_assert_valid_caches_resources():
     """Test that the JSON ref resolver in `assert_valid()` caches resources
 
@@ -15,9 +34,9 @@ def test_assert_valid_caches_resources():
     """
     _LOCAL_RESOLVER._remote_cache.cache_clear()  # pylint: disable=W0212
 
-    assert_valid(make_empty_order(), "/orderSchema")
+    assert_valid(order_to_jsdict(make_empty_order()), "/orderSchema")
     cache_info = (
         _LOCAL_RESOLVER._remote_cache.cache_info()  # pylint: disable=W0212
     )
     assert cache_info.currsize == 4
-    assert cache_info.hits == 10
+    assert cache_info.hits > 0
diff --git a/python-packages/json_schemas/tox.ini b/python-packages/json_schemas/tox.ini
new file mode 100644
index 000000000..1d5de646e
--- /dev/null
+++ b/python-packages/json_schemas/tox.ini
@@ -0,0 +1,25 @@
+# tox (https://tox.readthedocs.io/) is a tool for running tests
+# in multiple virtualenvs. This configuration file will run the
+# test suite on all supported python versions. To use it, "pip install tox"
+# and then run "tox" from this directory.
+
+[tox]
+envlist = py37
+
+[testenv]
+commands =
+    pip install -e .[dev]
+    python setup.py test
+
+[testenv:run_tests_against_test_deployment]
+commands =
+    # install dependencies from real PyPI
+    pip install jsonschema mypy_extensions pytest
+    # install package-under-test from test PyPI
+    pip install --index-url https://test.pypi.org/legacy/ 0x-json-schemas
+    pytest test
+
+[testenv:run_tests_against_deployment]
+commands =
+    pip install 0x-json-schemas
+    pytest test
diff --git a/python-packages/lint b/python-packages/lint
new file mode 100755
index 000000000..0974f273c
--- /dev/null
+++ b/python-packages/lint
@@ -0,0 +1,13 @@
+#!/usr/bin/env python
+
+"""Script to run linters against local copy of all components."""
+
+from os import path
+import subprocess
+
+subprocess.check_call(
+    (
+        f"{path.join('.', 'cmd_pkgs_in_dep_order.py')}"
+        + f" {path.join('.', 'setup.py')} lint"
+    ).split()
+)
diff --git a/python-packages/order_utils/setup.py b/python-packages/order_utils/setup.py
index 125de5ff7..6f9465680 100755
--- a/python-packages/order_utils/setup.py
+++ b/python-packages/order_utils/setup.py
@@ -21,7 +21,7 @@ class TestCommandExtension(TestCommand):
         """Invoke pytest."""
         import pytest
 
-        exit(pytest.main())
+        exit(pytest.main(["--doctest-modules"]))
 
 
 class LintCommand(distutils.command.build_py.build_py):
@@ -137,14 +137,8 @@ class GanacheCommand(distutils.command.build_py.build_py):
     def run(self):
         """Run ganache."""
         cmd_line = (
-            "docker run -d -p 8545:8545 0xorg/ganache-cli --gasLimit"
-            + " 10000000 --db /snapshot --noVMErrorsOnRPCResponse -p 8545"
-            + " --networkId 50 -m"
+            "docker run -d -p 8545:8545 0xorg/ganache-cli:2.2.2"
         ).split()
-        cmd_line.append(
-            "concert load couple harbor equip island argue ramp clarify fence"
-            + " smart topic"
-        )
         subprocess.call(cmd_line)  # nosec
 
 
@@ -171,9 +165,13 @@ setup(
         "ganache": GanacheCommand,
     },
     install_requires=[
+        "0x-contract-addresses",
+        "0x-contract-artifacts",
+        "0x-json-schemas",
         "eth-abi",
         "eth_utils",
-        "jsonschema",
+        "hypothesis>=3.31.2",  # HACK! this is web3's dependency!
+        # above works around https://github.com/ethereum/web3.py/issues/1179
         "mypy_extensions",
         "web3",
     ],
@@ -190,16 +188,13 @@ setup(
             "pylint",
             "pytest",
             "sphinx",
+            "sphinx-autodoc-typehints",
             "tox",
             "twine",
         ]
     },
     python_requires=">=3.6, <4",
-    package_data={
-        "zero_ex.order_utils": ["py.typed"],
-        "zero_ex.contract_artifacts": ["artifacts/*"],
-        "zero_ex.json_schemas": ["schemas/*"],
-    },
+    package_data={"zero_ex.order_utils": ["py.typed"]},
     package_dir={"": "src"},
     license="Apache 2.0",
     keywords=(
diff --git a/python-packages/order_utils/src/conf.py b/python-packages/order_utils/src/conf.py
index 6b6776d01..d8f56b29e 100644
--- a/python-packages/order_utils/src/conf.py
+++ b/python-packages/order_utils/src/conf.py
@@ -22,6 +22,7 @@ extensions = [
     "sphinx.ext.intersphinx",
     "sphinx.ext.coverage",
     "sphinx.ext.viewcode",
+    "sphinx_autodoc_typehints",
 ]
 
 templates_path = ["doc_templates"]
diff --git a/python-packages/order_utils/src/index.rst b/python-packages/order_utils/src/index.rst
index 551487ab1..ce618c6ff 100644
--- a/python-packages/order_utils/src/index.rst
+++ b/python-packages/order_utils/src/index.rst
@@ -7,23 +7,26 @@ Python zero_ex.order_utils
    :maxdepth: 2
    :caption: Contents:
 
-.. autoclass:: zero_ex.order_utils.Order
+.. automodule:: zero_ex.order_utils
    :members:
 
-See source for class properties.  Sphinx does not easily generate class property docs; pull requests welcome.
+.. autoclass:: zero_ex.order_utils.Order
 
-.. automodule:: zero_ex.order_utils
-   :members:
+   See source for class properties.  Sphinx is having problems generating docs for ``TypedDict`` declarations; pull requests welcome.
+
+zero_ex.order_utils.asset_data_utils
+------------------------------------
 
 .. automodule:: zero_ex.order_utils.asset_data_utils
    :members:
 
 .. autoclass:: zero_ex.order_utils.asset_data_utils.ERC20AssetData
 
+   See source for class properties.  Sphinx is having problems generating docs for ``TypedDict`` declarations; pull requests welcome.
+
 .. autoclass:: zero_ex.order_utils.asset_data_utils.ERC721AssetData
 
-.. automodule:: zero_ex.json_schemas
-   :members:
+   See source for class properties.  Sphinx is having problems generating docs for ``TypedDict`` declarations; pull requests welcome.
 
 Indices and tables
 ==================
diff --git a/python-packages/order_utils/src/zero_ex/contract_artifacts/__init__.py b/python-packages/order_utils/src/zero_ex/contract_artifacts/__init__.py
deleted file mode 100644
index ed45d2c8e..000000000
--- a/python-packages/order_utils/src/zero_ex/contract_artifacts/__init__.py
+++ /dev/null
@@ -1 +0,0 @@
-"""Solc-generated artifacts for 0x smart contracts."""
diff --git a/python-packages/order_utils/src/zero_ex/contract_artifacts/artifacts b/python-packages/order_utils/src/zero_ex/contract_artifacts/artifacts
deleted file mode 120000
index 82d28ba87..000000000
--- a/python-packages/order_utils/src/zero_ex/contract_artifacts/artifacts
+++ /dev/null
@@ -1 +0,0 @@
-../../../../../packages/contract-artifacts/artifacts
\ No newline at end of file
diff --git a/python-packages/order_utils/src/zero_ex/json_schemas/schemas b/python-packages/order_utils/src/zero_ex/json_schemas/schemas
deleted file mode 120000
index b8257372c..000000000
--- a/python-packages/order_utils/src/zero_ex/json_schemas/schemas
+++ /dev/null
@@ -1 +0,0 @@
-../../../../../packages/json-schemas/schemas/
\ No newline at end of file
diff --git a/python-packages/order_utils/src/zero_ex/order_utils/__init__.py b/python-packages/order_utils/src/zero_ex/order_utils/__init__.py
index 24c6bfd4e..39d411507 100644
--- a/python-packages/order_utils/src/zero_ex/order_utils/__init__.py
+++ b/python-packages/order_utils/src/zero_ex/order_utils/__init__.py
@@ -1,28 +1,29 @@
 """Order utilities for 0x applications.
 
-Some methods require the caller to pass in a `Web3.HTTPProvider` object.  For
-local testing one may construct such a provider pointing at an instance of
+Some methods require the caller to pass in a `Web3.BaseProvider`:code: object.
+For local testing one may construct such a provider pointing at an instance of
 `ganache-cli <https://www.npmjs.com/package/ganache-cli>`_ which has the 0x
 contracts deployed on it.  For convenience, a docker container is provided for
-just this purpose.  To start it: ``docker run -d -p 8545:8545 0xorg/ganache-cli
---gasLimit 10000000 --db /snapshot --noVMErrorsOnRPCResponse -p 8545
---networkId 50 -m "concert load couple harbor equip island argue ramp clarify
-fence smart topic"``.
+just this purpose.  To start it:
+`docker run -d -p 8545:8545 0xorg/ganache-cli:2.2.2`:code:.
 """
 
+from copy import copy
 from enum import auto, Enum
 import json
-from typing import Dict, Tuple
+from typing import cast, Dict, NamedTuple, Tuple
 from pkg_resources import resource_string
 
 from mypy_extensions import TypedDict
 
-from eth_utils import keccak, to_bytes, to_checksum_address
+from eth_utils import keccak, remove_0x_prefix, to_bytes, to_checksum_address
 from web3 import Web3
 import web3.exceptions
 from web3.providers.base import BaseProvider
 from web3.utils import datatypes
 
+from zero_ex.contract_addresses import NETWORK_TO_ADDRESSES, NetworkId
+import zero_ex.contract_artifacts
 from zero_ex.dev_utils.type_assertions import (
     assert_is_address,
     assert_is_hex_string,
@@ -34,34 +35,6 @@ from zero_ex.json_schemas import assert_valid
 class _Constants:
     """Static data used by order utilities."""
 
-    _contract_name_to_abi: Dict[str, Dict] = {}  # class data, not instance
-
-    @classmethod
-    def contract_name_to_abi(cls, contract_name: str) -> Dict:
-        """Return the ABI for the given contract name.
-
-        First tries to get data from the class level storage
-        `_contract_name_to_abi`.  If it's not there, loads it from disk, stores
-        it in the class data (for the next caller), and then returns it.
-        """
-        try:
-            return cls._contract_name_to_abi[contract_name]
-        except KeyError:
-            cls._contract_name_to_abi[contract_name] = json.loads(
-                resource_string(
-                    "zero_ex.contract_artifacts",
-                    f"artifacts/{contract_name}.json",
-                )
-            )["compilerOutput"]["abi"]
-            return cls._contract_name_to_abi[contract_name]
-
-    network_to_exchange_addr: Dict[str, str] = {
-        "1": "0x4f833a24e1f95d70f028921e27040ca56e09ab0b",
-        "3": "0x4530c0483a1633c7a1c97d2c53721caff2caaaaf",
-        "42": "0x35dd2932454449b14cee11a94d3674a936d5d7b2",
-        "50": "0x48bacb9266a570d521063ef5dd96e61686dbe788",
-    }
-
     null_address = "0x0000000000000000000000000000000000000000"
 
     eip191_header = b"\x19\x01"
@@ -107,53 +80,195 @@ class _Constants:
 
 
 class Order(TypedDict):  # pylint: disable=too-many-instance-attributes
-    """Object representation of a 0x order."""
+    """A Web3-compatible representation of the Exchange.Order struct."""
 
     makerAddress: str
+    """Address that created the order."""
+
     takerAddress: str
+    """Address that is allowed to fill the order.
+
+    If set to 0, any address is allowed to fill the order.
+    """
+
     feeRecipientAddress: str
+    """Address that will recieve fees when order is filled."""
+
     senderAddress: str
-    makerAssetAmount: str
-    takerAssetAmount: str
-    makerFee: str
-    takerFee: str
-    expirationTimeSeconds: str
-    salt: str
-    makerAssetData: str
-    takerAssetData: str
-    exchangeAddress: str
+    """Address that is allowed to call Exchange contract methods that affect
+    this order. If set to 0, any address is allowed to call these methods.
+    """
+
+    makerAssetAmount: int
+    """Amount of makerAsset being offered by maker. Must be greater than 0."""
+
+    takerAssetAmount: int
+    """Amount of takerAsset being bid on by maker. Must be greater than 0."""
+
+    makerFee: int
+    """Amount of ZRX paid to feeRecipient by maker when order is filled.  If
+    set to 0, no transfer of ZRX from maker to feeRecipient will be attempted.
+    """
+
+    takerFee: int
+    """Amount of ZRX paid to feeRecipient by taker when order is filled.  If
+    set to 0, no transfer of ZRX from taker to feeRecipient will be attempted.
+    """
+
+    expirationTimeSeconds: int
+    """Timestamp in seconds at which order expires."""
+
+    salt: int
+    """Arbitrary number to facilitate uniqueness of the order's hash."""
+
+    makerAssetData: bytes
+    """Encoded data that can be decoded by a specified proxy contract when
+    transferring makerAsset. The last byte references the id of this proxy.
+    """
+
+    takerAssetData: bytes
+    """Encoded data that can be decoded by a specified proxy contract when
+    transferring takerAsset. The last byte references the id of this proxy.
+    """
 
 
 def make_empty_order() -> Order:
     """Construct an empty order.
 
-    Initializes all strings to "0x0000000000000000000000000000000000000000"
-    and all numbers to 0.
+    Initializes all strings to "0x0000000000000000000000000000000000000000",
+    all numbers to 0, and all bytes to nulls.
     """
     return {
         "makerAddress": _Constants.null_address,
         "takerAddress": _Constants.null_address,
         "senderAddress": _Constants.null_address,
         "feeRecipientAddress": _Constants.null_address,
-        "makerAssetData": _Constants.null_address,
-        "takerAssetData": _Constants.null_address,
-        "salt": "0",
-        "makerFee": "0",
-        "takerFee": "0",
-        "makerAssetAmount": "0",
-        "takerAssetAmount": "0",
-        "expirationTimeSeconds": "0",
-        "exchangeAddress": _Constants.null_address,
+        "makerAssetData": (b"\x00") * 20,
+        "takerAssetData": (b"\x00") * 20,
+        "salt": 0,
+        "makerFee": 0,
+        "takerFee": 0,
+        "makerAssetAmount": 0,
+        "takerAssetAmount": 0,
+        "expirationTimeSeconds": 0,
     }
 
 
-def generate_order_hash_hex(order: Order) -> str:
+def order_to_jsdict(
+    order: Order, exchange_address="0x0000000000000000000000000000000000000000"
+) -> dict:
+    """Convert a Web3-compatible order struct to a JSON-schema-compatible dict.
+
+    More specifically, do explicit decoding for the `bytes`:code: fields.
+
+    >>> import pprint
+    >>> pprint.pprint(order_to_jsdict(
+    ...     {
+    ...         'makerAddress': "0x0000000000000000000000000000000000000000",
+    ...         'takerAddress': "0x0000000000000000000000000000000000000000",
+    ...         'feeRecipientAddress':
+    ...             "0x0000000000000000000000000000000000000000",
+    ...         'senderAddress': "0x0000000000000000000000000000000000000000",
+    ...         'makerAssetAmount': 1,
+    ...         'takerAssetAmount': 1,
+    ...         'makerFee': 0,
+    ...         'takerFee': 0,
+    ...         'expirationTimeSeconds': 1,
+    ...         'salt': 1,
+    ...         'makerAssetData': (0).to_bytes(1, byteorder='big') * 20,
+    ...         'takerAssetData': (0).to_bytes(1, byteorder='big') * 20,
+    ...     },
+    ... ))
+    {'exchangeAddress': '0x0000000000000000000000000000000000000000',
+     'expirationTimeSeconds': 1,
+     'feeRecipientAddress': '0x0000000000000000000000000000000000000000',
+     'makerAddress': '0x0000000000000000000000000000000000000000',
+     'makerAssetAmount': 1,
+     'makerAssetData': '0x0000000000000000000000000000000000000000',
+     'makerFee': 0,
+     'salt': 1,
+     'senderAddress': '0x0000000000000000000000000000000000000000',
+     'takerAddress': '0x0000000000000000000000000000000000000000',
+     'takerAssetAmount': 1,
+     'takerAssetData': '0x0000000000000000000000000000000000000000',
+     'takerFee': 0}
+    """
+    jsdict = cast(Dict, copy(order))
+
+    # encode bytes fields
+    jsdict["makerAssetData"] = "0x" + order["makerAssetData"].hex()
+    jsdict["takerAssetData"] = "0x" + order["takerAssetData"].hex()
+
+    jsdict["exchangeAddress"] = exchange_address
+
+    assert_valid(jsdict, "/orderSchema")
+
+    return jsdict
+
+
+def jsdict_order_to_struct(jsdict: dict) -> Order:
+    r"""Convert a JSON-schema-compatible dict order to a Web3-compatible struct.
+
+    More specifically, do explicit encoding of the `bytes`:code: fields.
+
+    >>> import pprint
+    >>> pprint.pprint(jsdict_order_to_struct(
+    ...     {
+    ...         'makerAddress': "0x0000000000000000000000000000000000000000",
+    ...         'takerAddress': "0x0000000000000000000000000000000000000000",
+    ...         'feeRecipientAddress': "0x0000000000000000000000000000000000000000",
+    ...         'senderAddress': "0x0000000000000000000000000000000000000000",
+    ...         'makerAssetAmount': 1000000000000000000,
+    ...         'takerAssetAmount': 1000000000000000000,
+    ...         'makerFee': 0,
+    ...         'takerFee': 0,
+    ...         'expirationTimeSeconds': 12345,
+    ...         'salt': 12345,
+    ...         'makerAssetData': "0x0000000000000000000000000000000000000000",
+    ...         'takerAssetData': "0x0000000000000000000000000000000000000000",
+    ...         'exchangeAddress': "0x0000000000000000000000000000000000000000",
+    ...     },
+    ... ))
+    {'expirationTimeSeconds': 12345,
+     'feeRecipientAddress': '0x0000000000000000000000000000000000000000',
+     'makerAddress': '0x0000000000000000000000000000000000000000',
+     'makerAssetAmount': 1000000000000000000,
+     'makerAssetData': b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+                       b'\x00\x00\x00\x00\x00\x00\x00\x00',
+     'makerFee': 0,
+     'salt': 12345,
+     'senderAddress': '0x0000000000000000000000000000000000000000',
+     'takerAddress': '0x0000000000000000000000000000000000000000',
+     'takerAssetAmount': 1000000000000000000,
+     'takerAssetData': b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+                       b'\x00\x00\x00\x00\x00\x00\x00\x00',
+     'takerFee': 0}
+    """  # noqa: E501 (line too long)
+    assert_valid(jsdict, "/orderSchema")
+
+    order = cast(Order, copy(jsdict))
+
+    order["makerAssetData"] = bytes.fromhex(
+        remove_0x_prefix(jsdict["makerAssetData"])
+    )
+    order["takerAssetData"] = bytes.fromhex(
+        remove_0x_prefix(jsdict["takerAssetData"])
+    )
+
+    del order["exchangeAddress"]  # type: ignore
+    # silence mypy pending release of
+    # https://github.com/python/mypy/issues/3550
+
+    return order
+
+
+def generate_order_hash_hex(order: Order, exchange_address: str) -> str:
     """Calculate the hash of the given order as a hexadecimal string.
 
     :param order: The order to be hashed.  Must conform to `the 0x order JSON schema <https://github.com/0xProject/0x-monorepo/blob/development/packages/json-schemas/schemas/order_schema.json>`_.
     :param exchange_address: The address to which the 0x Exchange smart
         contract has been deployed.
-    :rtype: A string, of ASCII hex digits, representing the order hash.
+    :returns: A string, of ASCII hex digits, representing the order hash.
 
     >>> generate_order_hash_hex(
     ...     {
@@ -167,14 +282,15 @@ def generate_order_hash_hex(order: Order) -> str:
     ...         'takerFee': "0",
     ...         'expirationTimeSeconds': "12345",
     ...         'salt': "12345",
-    ...         'makerAssetData': "0x0000000000000000000000000000000000000000",
-    ...         'takerAssetData': "0x0000000000000000000000000000000000000000",
-    ...         'exchangeAddress': "0x0000000000000000000000000000000000000000",
+    ...         'makerAssetData': (0).to_bytes(1, byteorder='big') * 20,
+    ...         'takerAssetData': (0).to_bytes(1, byteorder='big') * 20,
     ...     },
+    ...     exchange_address="0x0000000000000000000000000000000000000000",
     ... )
     '55eaa6ec02f3224d30873577e9ddd069a288c16d6fb407210eecbc501fa76692'
     """  # noqa: E501 (line too long)
-    assert_valid(order, "/orderSchema")
+    assert_is_address(exchange_address, "exchange_address")
+    assert_valid(order_to_jsdict(order, exchange_address), "/orderSchema")
 
     def pad_20_bytes_to_32(twenty_bytes: bytes):
         return bytes(12) + twenty_bytes
@@ -184,7 +300,7 @@ def generate_order_hash_hex(order: Order) -> str:
 
     eip712_domain_struct_hash = keccak(
         _Constants.eip712_domain_struct_header
-        + pad_20_bytes_to_32(to_bytes(hexstr=order["exchangeAddress"]))
+        + pad_20_bytes_to_32(to_bytes(hexstr=exchange_address))
     )
 
     eip712_order_struct_hash = keccak(
@@ -199,8 +315,8 @@ def generate_order_hash_hex(order: Order) -> str:
         + int_to_32_big_endian_bytes(int(order["takerFee"]))
         + int_to_32_big_endian_bytes(int(order["expirationTimeSeconds"]))
         + int_to_32_big_endian_bytes(int(order["salt"]))
-        + keccak(to_bytes(hexstr=order["makerAssetData"]))
-        + keccak(to_bytes(hexstr=order["takerAssetData"]))
+        + keccak(to_bytes(hexstr=order["makerAssetData"].hex()))
+        + keccak(to_bytes(hexstr=order["takerAssetData"].hex()))
     )
 
     return keccak(
@@ -210,20 +326,33 @@ def generate_order_hash_hex(order: Order) -> str:
     ).hex()
 
 
+class OrderInfo(NamedTuple):
+    """A Web3-compatible representation of the Exchange.OrderInfo struct."""
+
+    order_status: str
+    """A `str`:code: describing the order's validity and fillability."""
+
+    order_hash: bytes
+    """A `bytes`:code: object representing the EIP712 hash of the order."""
+
+    order_taker_asset_filled_amount: int
+    """An `int`:code: indicating the amount that has already been filled."""
+
+
 def is_valid_signature(
     provider: BaseProvider, data: str, signature: str, signer_address: str
 ) -> Tuple[bool, str]:
     """Check the validity of the supplied signature.
 
-    Check if the supplied ``signature`` corresponds to signing ``data`` with
-    the private key corresponding to ``signer_address``.
+    Check if the supplied `signature`:code: corresponds to signing `data`:code:
+    with the private key corresponding to `signer_address`:code:.
 
     :param provider: A Web3 provider able to access the 0x Exchange contract.
     :param data: The hex encoded data signed by the supplied signature.
     :param signature: The hex encoded signature.
     :param signer_address: The hex encoded address that signed the data to
         produce the supplied signature.
-    :rtype: Tuple consisting of a boolean and a string.  Boolean is true if
+    :returns: Tuple consisting of a boolean and a string.  Boolean is true if
         valid, false otherwise.  If false, the string describes the reason.
 
     >>> is_valid_signature(
@@ -241,12 +370,13 @@ def is_valid_signature(
 
     web3_instance = Web3(provider)
     # false positive from pylint: disable=no-member
-    network_id = web3_instance.net.version
-    contract_address = _Constants.network_to_exchange_addr[network_id]
+    contract_address = NETWORK_TO_ADDRESSES[
+        NetworkId(int(web3_instance.net.version))
+    ].exchange
     # false positive from pylint: disable=no-member
     contract: datatypes.Contract = web3_instance.eth.contract(
         address=to_checksum_address(contract_address),
-        abi=_Constants.contract_name_to_abi("Exchange"),
+        abi=zero_ex.contract_artifacts.abi_by_name("Exchange"),
     )
     try:
         return (
@@ -337,8 +467,8 @@ def sign_hash(
     :param provider: A Web3 provider.
     :param signer_address: The address of the signing account.
     :param hash_hex: A hex string representing the hash, like that returned
-        from `generate_order_hash_hex()`.
-    :rtype: A string, of ASCII hex digits, representing the signature.
+        from `generate_order_hash_hex()`:code:.
+    :returns: A string, of ASCII hex digits, representing the signature.
 
     >>> provider = Web3.HTTPProvider("http://127.0.0.1:8545")
     >>> sign_hash(
diff --git a/python-packages/order_utils/src/zero_ex/order_utils/asset_data_utils.py b/python-packages/order_utils/src/zero_ex/order_utils/asset_data_utils.py
index fab7479d2..f8e9bc42b 100644
--- a/python-packages/order_utils/src/zero_ex/order_utils/asset_data_utils.py
+++ b/python-packages/order_utils/src/zero_ex/order_utils/asset_data_utils.py
@@ -17,6 +17,8 @@ class ERC20AssetData(TypedDict):
     """Object interface to ERC20 asset data."""
 
     asset_proxy_id: str
+    """asset proxy id"""
+
     token_address: str
 
 
@@ -32,7 +34,7 @@ def encode_erc20_asset_data(token_address: str) -> str:
     """Encode an ERC20 token address into an asset data string.
 
     :param token_address: the ERC20 token's contract address.
-    :rtype: hex encoded asset data string, usable in the makerAssetData or
+    :returns: hex encoded asset data string, usable in the makerAssetData or
         takerAssetData fields in a 0x order.
 
     >>> encode_erc20_asset_data('0x1dc4c1cefef38a777b15aa20260a54e584b16c48')
@@ -85,7 +87,7 @@ def encode_erc721_asset_data(token_address: str, token_id: int) -> str:
 
     :param token_address: the ERC721 token's contract address.
     :param token_id: the identifier of the asset's instance of the token.
-    :rtype: hex encoded asset data string, usable in the makerAssetData or
+    :returns: hex encoded asset data string, usable in the makerAssetData or
         takerAssetData fields in a 0x order.
 
     >>> encode_erc721_asset_data('0x1dc4c1cefef38a777b15aa20260a54e584b16c48', 1)
diff --git a/python-packages/order_utils/stubs/web3/__init___BASE_31011.pyi b/python-packages/order_utils/stubs/web3/__init___BASE_31011.pyi
new file mode 100644
index 000000000..fcecc7434
--- /dev/null
+++ b/python-packages/order_utils/stubs/web3/__init___BASE_31011.pyi
@@ -0,0 +1,26 @@
+from typing import Dict, Optional, Union
+
+from web3.utils import datatypes
+
+
+class Web3:
+    class HTTPProvider: ...
+
+    def __init__(self, provider: HTTPProvider) -> None: ...
+
+    @staticmethod
+    def sha3(
+        primitive: Optional[Union[bytes, int, None]] = None,
+        text: Optional[str] = None,
+        hexstr: Optional[str] = None
+    ) -> bytes: ...
+
+    class net:
+        version: str
+        ...
+
+    class eth:
+        @staticmethod
+        def contract(address: str, abi: Dict) -> datatypes.Contract: ...
+        ...
+    ...
diff --git a/python-packages/order_utils/test/test_doctest.py b/python-packages/order_utils/test/test_doctest.py
deleted file mode 100644
index 297f75e75..000000000
--- a/python-packages/order_utils/test/test_doctest.py
+++ /dev/null
@@ -1,18 +0,0 @@
-"""Exercise doctests for all of our modules."""
-
-from doctest import testmod
-import pkgutil
-import importlib
-
-import zero_ex
-
-
-def test_all_doctests():
-    """Gather zero_ex.* modules and doctest them."""
-    for (_, modname, _) in pkgutil.walk_packages(
-        path=zero_ex.__path__, prefix="zero_ex."
-    ):
-        module = importlib.import_module(modname)
-        print(module)
-        (failure_count, _) = testmod(module)
-        assert failure_count == 0
diff --git a/python-packages/order_utils/test/test_generate_order_hash_hex.py b/python-packages/order_utils/test/test_generate_order_hash_hex.py
index 6869a40ed..38b503289 100644
--- a/python-packages/order_utils/test/test_generate_order_hash_hex.py
+++ b/python-packages/order_utils/test/test_generate_order_hash_hex.py
@@ -8,5 +8,7 @@ def test_get_order_hash_hex__empty_order():
     expected_hash_hex = (
         "faa49b35faeb9197e9c3ba7a52075e6dad19739549f153b77dfcf59408a4b422"
     )
-    actual_hash_hex = generate_order_hash_hex(make_empty_order())
+    actual_hash_hex = generate_order_hash_hex(
+        make_empty_order(), "0x0000000000000000000000000000000000000000"
+    )
     assert actual_hash_hex == expected_hash_hex
diff --git a/python-packages/sra_client/README.md b/python-packages/sra_client/README.md
index abf0dee42..78ed42b93 100644
--- a/python-packages/sra_client/README.md
+++ b/python-packages/sra_client/README.md
@@ -6,6 +6,35 @@ A Python client for interacting with servers conforming to [the Standard Relayer
 
 The [JSON schemas](http://json-schema.org/) for the API payloads and responses can be found in [@0xproject/json-schemas](https://github.com/0xProject/0x-monorepo/tree/development/packages/json-schemas). Examples of each payload and response can be found in the 0x.js library's [test suite](https://github.com/0xProject/0x-monorepo/blob/development/packages/json-schemas/test/schema_test.ts#L1).
 
+```bash
+pip install 0x-json-schemas
+```
+
+You can easily validate your API's payloads and responses using the [0x-json-schemas](https://github.com/0xProject/0x.js/tree/development/python-packages/json_schemas) package:
+
+```python
+from zero_ex.json_schemas import assert_valid
+from zero_ex.order_utils import Order
+
+order: Order = {
+    'makerAddress': "0x0000000000000000000000000000000000000000",
+    'takerAddress': "0x0000000000000000000000000000000000000000",
+    'feeRecipientAddress': "0x0000000000000000000000000000000000000000",
+    'senderAddress': "0x0000000000000000000000000000000000000000",
+    'makerAssetAmount': "1000000000000000000",
+    'takerAssetAmount': "1000000000000000000",
+    'makerFee': "0",
+    'takerFee': "0",
+    'expirationTimeSeconds': "12345",
+    'salt': "12345",
+    'makerAssetData': "0x0000000000000000000000000000000000000000",
+    'takerAssetData': "0x0000000000000000000000000000000000000000",
+    'exchangeAddress': "0x0000000000000000000000000000000000000000",
+}
+
+assert_valid(order, "/orderSchema")
+```
+
 # Pagination
 
 Requests that return potentially large collections should respond to the **?page** and **?perPage** parameters. For example:
diff --git a/python-packages/sra_client/setup.py b/python-packages/sra_client/setup.py
index b47f71ae7..0921149bd 100755
--- a/python-packages/sra_client/setup.py
+++ b/python-packages/sra_client/setup.py
@@ -48,6 +48,15 @@ class PublishCommand(distutils.command.build_py.build_py):
         subprocess.check_call("twine upload dist/*".split())  # nosec
 
 
+class LintCommand(distutils.command.build_py.build_py):
+    """No-op lint command to support top-level lint script."""
+
+    description = "No-op"
+
+    def run(self):
+        pass
+
+
 setup(
     name=NAME,
     version=VERSION,
@@ -63,5 +72,6 @@ setup(
     cmdclass={
         "test_publish": TestPublishCommand,
         "publish": PublishCommand,
+        "lint": LintCommand,
     },
 )
diff --git a/python-packages/test b/python-packages/test
new file mode 100755
index 000000000..5bf37cca3
--- /dev/null
+++ b/python-packages/test
@@ -0,0 +1,13 @@
+#!/usr/bin/env python
+
+"""Script to run tests against local copy of all components."""
+
+from os import path
+import subprocess
+
+subprocess.check_call(
+    (
+        f"{path.join('.', 'cmd_pkgs_in_dep_order.py')}"
+        + f" {path.join('.', 'setup.py')} test"
+    ).split()
+)