A bitcoin-ABC implementation bcext/gcash written in Go based on btcsuite/btcd! Welcome! #13881

As with btcsuite/btcd, gcash also supports walle and Lightning Network clients, and will be developed actively.

The following is the latest release:

• Adjust pow difficulty algorithm strictly following bitcoin-ABC Specific details: https://github.com/bitcoincashorg/bitcoincash.org/blob/master/spec/nov-13-hardfork-spec.md
  • The new difficulty adjustment algorithm activited since Height: 504031 for mainnet
  • Adjust the order of handing orphan block in ProcessBlock function because the next block's difficulty calculation depends on the previous block after the new rules activating Detail: https://github.com/bcext/gcash/blob/master/blockchain/process.go#L196-L227
• Adjust signature digest algorithm via setting SigHashForkID Detail:https://github.com/bitcoincashorg/bitcoincash.org/blob/master/spec/replay-protected-sighash.md
  • At this version, gcash supports the new and old signature digest algorithm depending on ScriptFlags
  • All new signature digest algorithm unit testings were checked strictly and passed
• Support base32 bitcoin cash address encoding same to bitcoin-ABC Detail: [https://github.com/bitcoincashorg/bitcoincash.org/blob/master/spec/cashaddr.md(https://github.com/bitcoincashorg/bitcoincash.org/blob/master/spec/cashaddr.md)
  • gcash and cashwallet use base32 address format default. But the added rpc command can convert the address format between base58 format and base32 format, see convcashaddr rpc command usage
  • Remove witness relative address encoding: AddressWitnessPubKeyHash and AddressWitnessScriptHash
• Add the following op_code due to May 2018 hard fork:
  • OP_CAT
  • OP_SPLIT
  • OP_AND
  • OP_OR
  • OP_XOR
  • OP_DIV
  • OP_MOD
  • OP_NUM2BIN
  • OP_BIN2NUM

  Detail: https://github.com/bitcoincashorg/bitcoincash.org/blob/master/spec/may-2018-reenabled-opcodes.md

• Misc changes:
  • Remove Witness item from TxIn
  • Adjust the block size limit to 32M
  • Remove the deprecated logic code, including: txweigth and blockweight
  • Adjust the GetSigOpCost calculation
  • Adjust the OP_RETURN bytes length to 220
  • Rename the amount unit from BTC to BCH

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