About block 921,721
Bitcoin block 921,721 was mined by Foundry USA on November 1, 2025 at 6:19 AM UTC, 10 min 30 s after block 921,720. 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 3,915 transactions in 1.66 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 0.0154 BTC. With the 3.125 BTC subsidy of halving era 5, Foundry USA earned 3.1404 BTC for this block.
Block 921,721 is number 410 of 2,016 in difficulty epoch 457; 1,606 blocks remain until the next difficulty adjustment at block 923,327. The next halving is at block 1,050,000, 128,279 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 261 blocks in the week before. Today the block has 51,822 confirmations, so it is settled beyond any practical doubt.