About block 921,647
Bitcoin block 921,647 was mined by Foundry USA on October 31, 2025 at 6:56 PM UTC, 5 min 8 s after block 921,646. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 3,571 transactions in 1.67 MB (99.8% of the 4 million weight-unit limit). The median transaction paid 1.00 sat/vB, up from 1.00 sat/vB in the block before, and all fees added up to 0.0179 BTC. With the 3.125 BTC subsidy of halving era 5, Foundry USA earned 3.1429 BTC for this block.
Block 921,647 is number 336 of 2,016 in difficulty epoch 457; 1,680 blocks remain until the next difficulty adjustment at block 923,327. The next halving is at block 1,050,000, 128,353 blocks after this one.
Its hash starts with 20 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 51,888 confirmations, so it is settled beyond any practical doubt.