Bitcoin miner rejects BIP-110 despite mining through a pool that supported it

DATUM moves that decision back to the individual miner. An operator can build its own block using its own bitcoin software while still contributing computing power to Ocean and sharing in the pool's payouts.

Simple Mining used that control to leave the BIP-110 signal out of block 961,634.

"We chose not to signal and the chain extended on our block," the company said.

That also explains why Ocean has appeared on both sides of the weekend split.

A miner using Ocean produced the first block accepted by the BIP-110 branch on Saturday, according to fork tracker Mempool. Simple Mining then used the same pool and made the opposite choice, producing a block for the dominant bitcoin chain.

Computers running BIP-110 software began rejecting blocks that did not carry its signal at block 961,632, after miner support peaked at about 2.6%, far below the 55% the proposal needed.

The minority branch has struggled since. It produced blocks 961,632 and 961,633 before stalling, while bitcoin kept producing blocks roughly every ten minutes.

By Monday a live monitor showed the main chain at 961,725, putting the BIP-110 branch more than 200 blocks behind.