Developers maintaining the BLAKE2b Bitcoin fork plan to implement a 45-day lockup period for newly mined coins, according to a pull request opened by Luke Dashjr. The change is expected to take effect at block 973440.
The fork, also known as Bitcoin BIP-110 or XBT on some exchanges, split from the main Bitcoin chain on Aug. 8, 2026, at block height 961632. It was created by supporters of BIP-110 and Bitcoin Knots who sought to restrict large quantities of non-monetary data on the network.
The Bitcoin BLAKE2b network faced significant challenges following its launch. Because it inherited Bitcoin's difficulty upon forking, the chain initially produced only eight blocks over its first 22 days. The network was revived by implementing a proof-of-work change using the BLAKE2b hash function, adjusting difficulty, and reducing block size.
After listing on smaller exchanges in early September, the native token BTCB2 surged to $1,799. The asset has since declined sharply, trading between $270 and $315 as of late September 2026—an 84% drop from its peak.
The price recovery attracted mining pools to the network, prompting developers to accuse some of exploiting the chain through large-scale operations. The planned 45-day lockup represents a significantly longer confirmation period than Bitcoin's 100-block standard, according to release notes accompanying the proposal.
The fork remains listed on only a handful of exchanges and is not tracked by major market data aggregators. Neoxa Exchange, one of the few platforms offering the forked asset, announced support for the upcoming soft fork.
