TechFlow News: On March 23, according to U.Today, the Bitcoin blockchain recently experienced a rare two-block reorganization (reorg). Bitcoin researcher b10c disclosed that a multi-block competition erupted among mining pools Foundry USA, AntPool, and ViaBTC.
The incident originated at block height 941880, where the network briefly forked into two equally long competing chains: AntPool mined block 941881 first, followed by ViaBTC mining block 941882 on the same chain; meanwhile, Foundry USA independently mined its own versions of blocks 941881 and 941882, resulting in two parallel chains. Ultimately, Foundry USA mined blocks 941883, 941884, and 941885 consecutively, winning by virtue of the longer chain. The blocks mined by AntPool and ViaBTC were discarded by the network and became “orphaned blocks.” Foundry USA successfully mined seven consecutive blocks—from 941879 through 941885.
Single-block reorganizations occasionally occur on the Bitcoin network, whereas two-block reorganizations are relatively rare—indicating that the parallel state between the two competing chains persisted for an additional full block interval. This event reflects the normal operation of Bitcoin’s decentralized consensus mechanism and is neither an attack nor a system failure.
