About block 921,531
Bitcoin block 921,531 was mined by Foundry USA on October 30, 2025 at 10:33 PM UTC, 5 min 53 s after block 921,530. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 4,375 transactions in 1.68 MB (99.8% of the 4 million weight-unit limit). The median transaction paid 0.00 sat/vB, down from 2.00 sat/vB in the block before, and all fees added up to 0.0126 BTC. With the 3.125 BTC subsidy of halving era 5, Foundry USA earned 3.1376 BTC for this block.
Block 921,531 is number 220 of 2,016 in difficulty epoch 457; 1,796 blocks remain until the next difficulty adjustment at block 923,327. The next halving is at block 1,050,000, 128,469 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. Foundry USA found 264 blocks in the week before. Today the block has 51,995 confirmations, so it is settled beyond any practical doubt.