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BIP-110 enforcing Bitcoin branch stalls, gap widens to 88 blocks

The enforcing branch produced only two blocks, reaching block 961,633, while the non-enforcing chain advanced to 961,721 as the gap expanded.

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Bitcoin’s BIP-110 enforcing branch stalled after producing just two blocks, leaving it stuck at full mining difficulty while the non-enforcing chain continued to advance, widening the divergence. Cointelegraph reports that the enforcing branch reached block 961,633 on Sunday, while the non-enforcing chain moved to 961,721, expanding the gap to 88 blocks, with the BIP-110 monitor updated at 10:19 am UTC.

According to Cointelegraph, the enforcing branch’s most recent block had been mined about 12 hours earlier, and pseudonymous mining group Roughnecks produced the first two blocks using Ocean’s DATUM mining protocol. The divergence began after BIP-110 entered mandatory signaling at block 961,632 on Saturday.

Cointelegraph adds that only 51 of the prior 2,016 blocks, or 2.53%, signaled support during the relevant window. Under the proposal described in the report, BIP-110 enforcing nodes reject blocks that do not signal via version bit 4, while ordinary Bitcoin nodes accept both signaling and non-signaling blocks.

The report says mandatory signaling is set to continue through block 963,647, and that the enforcing branch must mine through the rest of the 2,016-block adjustment period before difficulty can adjust, which can slow progress without additional hashpower. Cointelegraph also notes that prominent Bitcoin advocates have criticized the proposal, including Michael Saylor and Adam Back, who warned about potential harm to Bitcoin’s neutral rules and credibility, and the risk of certain unspent transaction outputs becoming effectively unspendable.

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