About block 921,421
Bitcoin block 921,421 was mined by Foundry USA on October 30, 2025 at 6:21 AM UTC, 11 min 9 s after block 921,420. That is slower than the 10-minute target; long gaps are normal, since every hash attempt is an independent draw with the same tiny chance.
It confirmed 4,507 transactions in 1.63 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 0.0155 BTC. With the 3.125 BTC subsidy of halving era 5, Foundry USA earned 3.1405 BTC for this block.
Block 921,421 is number 110 of 2,016 in difficulty epoch 457; 1,906 blocks remain until the next difficulty adjustment at block 923,327. The next halving is at block 1,050,000, 128,579 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 52,139 confirmations, so it is settled beyond any practical doubt.