About block 921,636
Bitcoin block 921,636 was mined by SpiderPool on October 31, 2025 at 5:24 PM UTC, 2 min 34 s after block 921,635. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 3,853 transactions in 1.81 MB (99.8% of the 4 million weight-unit limit). The median transaction paid 1.00 sat/vB, down from 2.00 sat/vB in the block before, and all fees added up to 0.0223 BTC. With the 3.125 BTC subsidy of halving era 5, SpiderPool earned 3.1473 BTC for this block.
Block 921,636 is number 325 of 2,016 in difficulty epoch 457; 1,691 blocks remain until the next difficulty adjustment at block 923,327. The next halving is at block 1,050,000, 128,364 blocks after this one.
Its hash starts with 19 zeros: that is the proof of work, a number below the target that the whole network’s hashrate had to search for. SpiderPool found 45 blocks in the week before. Today the block has 51,907 confirmations, so it is settled beyond any practical doubt.