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Bitcoin’s BIP-110 enters mandatory signaling with miner support below 3%

Bitcoin’s BIP-110 has reached a mandatory signaling phase despite support from fewer than 3% of miners. The milestone will test whether enforcing nodes can carry the proposed change forward as debate continues over a potential hard-fork…

Von Cointelegraph by Ezra ReguerraPublisher Cointelegraph 2 Min. Lesezeit

Image via Cointelegraph

Kernpunkte

BIP-110 has entered mandatory signaling.
Miner signaling remains below 3%.
The deployment will test node enforcement and could revive hard-fork discussions.

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Bitcoin Improvement Proposal 110 entered its mandatory-signaling phase at block 961,632 on Saturday, with miners signaling support in just 51 of the preceding 2,016 blocks, or 2.53%, well below the 55% threshold required for early activation, according to the BIP-110 monitor.

Starting at block 961,632, nodes enforcing BIP-110 began rejecting blocks that did not set version bit 4, while ordinary Bitcoin nodes continued accepting both signaling and non-signaling blocks. A minority BIP-110 branch subsequently emerged, but quickly fell behind the dominant chain.

The low signaling rate makes a sustained rival chain unlikely without substantially greater miner participation. With relatively little mining support, a BIP-110 branch could advance slowly or stop producing blocks altogether.

The milestone tests whether supporters can advance a contentious consensus change without broad miner backing, potentially separating enforcing nodes from the dominant chain and escalating a dispute over how Bitcoin’s block space should be used.

BIP-110 seeks temporary limits on Bitcoin data

Written by pseudonymous developer Dathon Ohm, BIP-110 proposes additional consensus restrictions lasting roughly one year.

It would limit most new output scripts to 34 bytes, cap OP_RETURN outputs at 83 bytes, restrict certain data pushes and witness elements to 256 bytes, and temporarily limit several Taproot features. Unspent transaction outputs created before activation would be exempt.

Supporters said the restrictions would discourage inscriptions and other non-monetary data that increase storage and bandwidth costs for node operators.

The proposal’s critics, including Strategy Executive Chairman Michael Saylor and Blockstream CEO Adam Back, have argued that the proposal could divide Bitcoin and cause nodes to reject transactions permitted under the network’s existing rules.

Related: Bitcoin nodes running BIP-110 crosses 2% as spam wars heat up

The proposal uses version bit 4 for miner signaling. Its deployment schedule sets blocks 961,632 through 963,647 as a mandatory-signaling window, during which nodes enforcing BIP-110 reject blocks that do not carry the signal.

The specification defines block 963,648 as the beginning of its locked-in state and block 965,664 as the point when its transaction restrictions take effect.

BIP-110 proponents have also discussed a more extensive fallback. On Aug. 1, Bitcoin developer Chris Guida rebased preliminary code for a proof-of-work change originally written by Bitcoin Knots maintainer Luke Dashjr.

Guida described the code at the time as a contingency if miners opposed BIP-110, but said no activation date had been set.

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