all: update license information

1 files changed, 16 insertions, 0 deletions

diff --git a/trie/hashnode.go b/trie/hashnode.go
index e82ab8069..a6ab084a8 100644
--- a/trie/hashnode.go
+++ b/trie/hashnode.go
@@ -1,3 +1,19 @@
+// Copyright 2014 The go-ethereum Authors
+// This file is part of go-ethereum.
+//
+// go-ethereum is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// go-ethereum is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with go-ethereum.  If not, see <http://www.gnu.org/licenses/>.
+
 package trie
 
 import "github.com/ethereum/go-ethereum/common"