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-rw-r--r--pow/block.go21
1 files changed, 21 insertions, 0 deletions
diff --git a/pow/block.go b/pow/block.go
new file mode 100644
index 000000000..3bc63978b
--- /dev/null
+++ b/pow/block.go
@@ -0,0 +1,21 @@
+package pow
+
+import (
+ "math/big"
+
+ "github.com/ethereum/go-ethereum/core/types"
+)
+
+type Block interface {
+ Difficulty() *big.Int
+ HashNoNonce() []byte
+ Nonce() uint64
+ MixDigest() []byte
+ SeedHash() []byte
+ NumberU64() uint64
+}
+
+type ChainManager interface {
+ GetBlockByNumber(uint64) *types.Block
+ CurrentBlock() *types.Block
+}