Support for BIP-110 peaked at about 2.53%, and its minority chain stalled after producing only two blocks when the consensus rules took effect on August 8. The dominant Bitcoin chain retained virtually all meaningful hashrate, the longest chain, liquidity and economic recognition, while the BIP-110 proposal was later marked closed. Supporters are now discussing a hard fork around September 1 that would replace SHA-256d mining with BLAKE2b and create a new network design while preserving the pre-fork transaction history. Because both chains may recognize Bitcoin Core's existing transaction and signature rules, a transaction sent on one chain could be replayed on the other without compromising the user's private key. Bitcoin Knots is discussing a new signature-hash, or sighash, option that would make an RDTS transaction invalid under Bitcoin Core, but ordinary transactions may remain replayable. Users would therefore need compatible wallets or hardware-signing firmware, or manual coin-splitting methods, to separate assets. Luke Dashjr said on August 18 that replay protection was the responsibility of the other network, which he called "Spamcoin," while continuing to characterize the BIP-110/RDTS branch as legitimate Bitcoin. The approach has drawn criticism and could discourage exchange and infrastructure support if the fork proceeds.