BIP-110 alerts set August signaling window for Bitcoin

Farside Investors has begun automatically posting BIP-110 signaling alerts on X. A July 3 post noted a recent signaling block and listed seven signals in the current reporting period. The account posts each time a block signals BIP-110.

BIP-110 is proposed as reduced_data using version bit 4. Miner-driven lock-in requires 1,109 of 2,016 blocks (55%) within a difficulty adjustment period. The proposal sets a mandatory-signaling window from block heights 961,632 to 963,647, with lock-in no later than 963,648 and activation at 965,664. If activated, the rules would apply for 52,416 blocks and then expire.

Observed miner signaling remains small. BGeometrics’ daily API, current through July 2, recorded 38 BIP-110 signaling blocks out of 9,066 total blocks since May 1, or 0.42%. In the June 26–July 2 seven-day window it logged 8 of 1,000 blocks (0.8%). Single-day snapshots showed 1 of 143 blocks on July 1 (0.70%) and 2 of 131 blocks on July 2 (1.53%). BGeometrics’ background note showed zero signaling from May 1 through about May 20, followed by low activity beginning around May 21. The July 3 alert’s seven-block count is a snapshot; at the 1,109-block lock-in threshold, seven signals still leave more than 1,100 additional signaling blocks required before a period would close.

The alert feed gives exchanges, wallet developers, mining pools and node operators a fixed calendar to plan against. During the mandatory-signaling window, enforcing nodes would treat blocks that do not signal bit 4 as invalid. If the deployment activates, enforcing nodes would apply the proposal’s consensus restrictions for the active period. The BIP text notes the Miniscript compiler may require changes and describes unlikely scenarios in which funds could be frozen or lost.

Operators can wait for larger miner support or build procedures while signaling remains small. A large pool beginning to signal could change daily totals quickly and move the campaign closer to the lock-in threshold. Public statements from major exchanges, wallet providers or node operators would enter the public record and could affect economic coordination during a contentious activation path.