Bitcoin experiences a single block reorganization: Antpool block is included in the main chain, Spiderpool block is discarded

Research institution Galaxy Research recorded a reorganization event at Bitcoin block height 966500, where mining pools Spiderpool and Antpool simultaneously discovered two valid blocks pointing to the same parent block, leading to a brief competition. Ultimately, the Antpool block joined the chain with a higher cumulative work, while the Spiderpool block was discarded.

Galaxy Research stated that this is the third single-block reorganization that has occurred in Bitcoin in the past four weeks, with the previous two occurring at block heights 962722 and 963853. Its nodes only observed the block after the Antpool block completed confirmation and continued to extend on it. When a single-block reorganization occurs, the network will ultimately continue to build along the chain with the higher cumulative work, while the other block is removed from the chain. Monero has experienced an 18-block reorganization, and Bitcoin SV had a 100-block reorganization in 2021; if a transaction is in a block that is replaced, its confirmations will disappear.