Bitcoin Undergoes Another Fork, BIP-110-Supporting Fork Chain Currently 18 Blocks Behind Mainnet

August 9th. The Bitcoin network experienced a fork due to the BIP-110 proposal. Nodes supporting the proposal rejected blocks that did not include the support signal at block height 961,632. Currently, the Bitcoin main chain has advanced to block 961,651, while the BIP-110 fork chain has only reached block 961,633, trailing the main chain by 18 blocks.

BIP-110 is a one-year rules adjustment proposal aimed at limiting non-financial data writes in Bitcoin transactions, including Ordinals inscriptions and other use cases. The proposal requires at least 1109 blocks (55%) to signal support within approximately two weeks, spanning a 2016-block cycle, to activate. However, in the previous cycle, only 51 blocks supported it, accounting for 2.53%.

Currently, the BIP-110 chain requires more miner support to progress. According to the rules, this chain needs to reach block 963,648 to lock in the rules and will formally enforce the restrictions starting at block 965,664, continuing for about a year.

In earlier news, Bitcoin developer Kevin Loaec warned that if the Bitcoin fork related to the contentious BIP-110 proposal occurs this weekend, holders may face the risk of actual BTC being moved when selling the forked chain's tokens.