About block 921,121
Bitcoin block 921,121 was mined by Foundry USA on October 28, 2025 at 4:55 AM UTC, 22 min 3 s after block 921,120. 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 2,648 transactions in 1.48 MB (99.8% of the 4 million weight-unit limit). The median transaction paid 2.00 sat/vB, up from 2.00 sat/vB in the block before, and all fees added up to 0.0307 BTC. With the 3.125 BTC subsidy of halving era 5, Foundry USA earned 3.1557 BTC for this block.
Block 921,121 is number 1,826 of 2,016 in difficulty epoch 456; 190 blocks remain until the next difficulty adjustment at block 921,311. The next halving is at block 1,050,000, 128,879 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 261 blocks in the week before. Today the block has 52,430 confirmations, so it is settled beyond any practical doubt.