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.