About block 921,438
Bitcoin block 921,438 was mined by Foundry USA on October 30, 2025 at 8:43 AM UTC, 8 min 7 s after block 921,437. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 4,400 transactions in 1.69 MB (99.8% of the 4 million weight-unit limit). The median transaction paid 0.00 sat/vB, down from 1.00 sat/vB in the block before, and all fees added up to 0.0136 BTC. With the 3.125 BTC subsidy of halving era 5, Foundry USA earned 3.1386 BTC for this block.
Block 921,438 is number 127 of 2,016 in difficulty epoch 457; 1,889 blocks remain until the next difficulty adjustment at block 923,327. The next halving is at block 1,050,000, 128,562 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 265 blocks in the week before. Today the block has 52,129 confirmations, so it is settled beyond any practical doubt.