Bitcoin has reached block 961,632, triggering the mandatory signaling period for BIP-110, a contested soft fork proposal that seeks to temporarily curb non-financial data being embedded on the Bitcoin network.
The development matters because BIP-110 is testing Bitcoin’s governance dynamics at a moment when miner backing appears minimal. According to CoinDesk, support from miners has seldom exceeded 2.5%, well below the 55% level required under the proposal’s signaling process, while prominent Bitcoin figures including Strategy Chairman Michael Saylor and Blockstream CEO Adam Back have voiced opposition.
Supporters are pursuing BIP-110 as a user-activated soft fork, or UASF. In that model, node operators would update their software to reject blocks from miners that do not signal support, shifting pressure from miners to users enforcing a new rule set.
CoinDesk notes that proponents point to the 2017 SegWit activation through BIP-148 as historical precedent for this approach. SegWit separated digital signatures from transaction data and was ultimately adopted despite earlier miner resistance.
For now, the practical risk is fragmentation. If users enforce BIP-110 while nearly all miners continue building the existing chain, Bitcoin could temporarily see two competing networks: the dominant mainnet supported by most hash power and institutional capital, and a minority chain run by BIP-110 enforcing nodes.
The signaling window is scheduled to run until Bitcoin reaches block 965,664, which CoinDesk said was expected in about four weeks from the start of the phase.