TREE NEWS reports: Galaxy Research recorded a single-block reorganization at Bitcoin block height 966500 on September 11, when Spiderpool and Antpool produced competing valid blocks building on the same parent. Antpool’s block joined the chain with more cumulative work, and Spiderpool’s block was discarded. Galaxy said this was Bitcoin’s third single-block reorg in four weeks, following heights 962722 and 963853. Transactions in the replaced block lose their confirmations.
Bitcoin Sees Third Single-Block Reorg in Four Weeks at Height 966500
Three single-block reorgs in four weeks is a notable cluster for a network where such events are usually rare, and the fact that both competing blocks came from major pools points to propagation timing rather than any protocol failure. The practical exposure is narrow but real: transactions in the discarded block lose confirmations and must be re-mined, which matters most at low confirmation thresholds. Whether this cadence is a temporary artifact of pool behavior or a persistent feature of block races is the open question worth tracking.
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