David Schwartz, Ripple's former chief technology officer and a co-founder of the company, challenged Loogart, a prominent BIP-110 advocate, over the framing of a planned Bitcoin hard fork (a blockchain split creating a separate network). The dispute unfolded on X on August 31 after a user called the BLAKE2b fork an attack on Bitcoin and compared it with Bitcoin Cash and Bitcoin SV. Schwartz said the group had shifted from governance participation to attacking Bitcoin after refusing to accept the loss of its campaign, and objected to describing the project as an effort to fix the legacy chain. The BLAKE2b fork, backed by developer Luke Dashjr, is scheduled for September 1 but is separate from the original BIP-110 branch, which stalled after producing two blocks over eight hours. It would replace Bitcoin's SHA-256d proof-of-work (computational security system) with BLAKE2b, requiring separate mining support and potentially technical changes for wallets, light clients and indexers. No major exchange, wallet provider or Lightning Network implementation had publicly committed to supporting the chain before launch. Developers said technical issues could delay activation, while the network's eventual effect depends on whether it attracts miners, developers, infrastructure and trading venues.