This is the closed record of the SHA-256d BIP-110 fork, from block 961,631, the last block both chains shared, to block 961,639 on 28 August 2026. BIP-110 was marked Closed on 2026-08-09, the day after the split, but the fork kept mining: 8 blocks in ~20 days, at the difficulty both chains inherited. The record stops at 961,639 because the fork's released client changes the proof of work at the next block, from SHA-256d to BLAKE2b. We did not upgrade to follow it. The feeds behind this page are off and nothing here updates.
The record
Both chains, block by block
Signalling
Pool intent
Resources from friends
The other public instruments that covered this event, kept as a record of who was watching rather than as a live directory. Some are no longer running.
- bip110monitorsignalling by period
- wickedsmartbitcoinsignalling history and per-pool charts
- bip110.orange.surfexplainers and a fork simulator
- forkmonitorconsensus watch across many clients
- fork.observerB10C's multi-node header tree
- mainnet.observerB10C's charts, incl. BIP-110 by pool
- stratum.workpool jobs live off the wire
- forkwatch.tvisometric live block view, BIP-110 signals marked
- BIP110watchversion bits block by block, split check, scenarios
- btcnodes.ioreachable-node census
- bitnod.esnode counts by client, incl. Core vs BIP-110 splits
- elektronics.devfork monitor, signals weighted by cost to fake