Bitcoin has 185 blocks left before nodes enforcing BIP-110 start rejecting blocks that don't signal support, with observed signaling at just 2.62%. The 55% threshold can no longer be met before the deadline, while Bitcoin Core has left the change unmerged and Bitcoin Knots has flagged a validation risk for software that doesn't enforce it.
A third-party monitor showed only 48 of 1,831 blocks signaling as of 14:41:49 UTC on Aug. 7 — just 2.62% — with 185 blocks left before Bitcoin's BIP-110 signaling period closes. BIP-110 is a proposed temporary soft fork that would shrink block data; once the period ends, nodes enforcing it will reject blocks that don't signal support.
The threshold math no longer works
BIP-110 requires 1,109 signaling blocks in a 2,016-block period to meet its 55% threshold. Even if every one of the remaining 185 blocks signaled, the period would finish at 233 of 2,016, or about 11.56%.
Rules diverge at height 961,632
From height 961,632, nodes that continuously enforce BIP-110 will reject blocks that don't signal bit 4, while nodes following existing Bitcoin rules may accept those same blocks if they otherwise satisfy those rules. As a result, block acceptance could split between rule sets, though any sustained enforcing branch still depends on miners producing BIP-110-valid work after the boundary. Under the proposal, mandatory signaling runs through block 963,647, lock-in won't happen once the height reaches 963,648, and the reduced-data rules would activate at 965,664.
Core sidelines the proposal, Knots warns of risk
A BIP-110 implementation pull request in the Bitcoin Core repository closed unmerged on March 26. Core contributor Antoine Poinsot wrote in a personal capacity on June 4 that Core does not enforce the proposal.
Mining pool OCEAN, meanwhile, announced separate signaling and non-signaling endpoints and said its default would switch on July 15. Bitcoin Knots then used its Aug. 7 release to warn that older non-enforcing software, explicitly including current Bitcoin Core, could stop fully validating BIP-110 rules and leave chainstate unsafe in some scenarios.
The first blocks after height 961,631 will reveal which miners change signaling and whether an enforcing chain accumulates work.
Source: CryptoSlate
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