Bitcoin Cash II
Bitcoin Cash II（BCH2) is a proof-of-work cryptocurrency created through a hard fork of 53,200 of BC2(Bitcoin's second generation) at block height SHA—256.BCH2 Through the fork, it inherits the complete transaction history of BC2 while adopting Bitcoin Cash consensus rules, including 32MB blocks,ASERT difficulty adjustment algorithm, Schnorr signatures, native introspection opcodes, and protocol upgrades through 11（ABLA). At the time of the fork, all BC2 holders received 1：1 at a ratio of BCH2, with approximately 2,660,000 tokens distributed in total.BCH2 has no premine, developer allocation, or ICO. All new tokens enter circulation solely through mining, following Bitcoin's original halving schedule, with a maximum supply of 21,000,000, and a current block reward of 50BCH2。 BCH2 At launch, it used a 1-hour ASERT half-life, designed to provide difficulty stability for the new network. At block 92,736 the half-life automatically converts to 2 days, matching Bitcoin Cash nodes (BCHN). This conversion is embedded in the consensus rules and requires no hard fork.SIGHASH_FORKID provides replay protection, ensuring that BCH2 and BC2 transactions remain independent of each other. The project also implements double-spend proofs for real-time double-spend detection of unconfirmed transactions, and implements a script-signature-based witness mechanism that enables existing segregated-witness unspent transaction outputs from the BC2 history to be spent on the BCH2 chain. The codebase is built on Bitcoin Core v27.1 and released as open source under the MIT license.
Overview
Bitcoin Cash II（BCH2) is a proof-of-work cryptocurrency created through a hard fork of 53,200 of BC2(Bitcoin's second generation) at block height SHA—256.BCH2 Through the fork, it inherits the complete transaction history of BC2 while adopting Bitcoin Cash consensus rules, including 32MB blocks,ASERT difficulty adjustment algorithm, Schnorr signatures, native introspection opcodes, and protocol upgrades through 11（ABLA). At the time of the fork, all BC2 holders received 1：1 at a ratio of BCH2, with approximately 2,660,000 tokens distributed in total.BCH2 has no premine, developer allocation, or ICO. All new tokens enter circulation solely through mining, following Bitcoin's original halving schedule, with a maximum supply of 21,000,000, and a current block reward of 50BCH2。 BCH2 At launch, it used a 1-hour ASERT half-life, designed to provide difficulty stability for the new network. At block 92,736 the half-life automatically converts to 2 days, matching Bitcoin Cash nodes (BCHN). This conversion is embedded in the consensus rules and requires no hard fork.SIGHASH_FORKID provides replay protection, ensuring that BCH2 and BC2 transactions remain independent of each other. The project also implements double-spend proofs for real-time double-spend detection of unconfirmed transactions, and implements a script-signature-based witness mechanism that enables existing segregated-witness unspent transaction outputs from the BC2 history to be spent on the BCH2 chain. The codebase is built on Bitcoin Core v27.1 and released as open source under the MIT license.