About block 921,271
Bitcoin block 921,271 was mined by F2Pool on October 29, 2025 at 2:43 AM UTC, 1 min 9 s after block 921,270. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 281 transactions in 0.17 MB (9.6% 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 0.0021 BTC. With the 3.125 BTC subsidy of halving era 5, F2Pool earned 3.1271 BTC for this block.
Block 921,271 is number 1,976 of 2,016 in difficulty epoch 456; 40 blocks remain until the next difficulty adjustment at block 921,311. The next halving is at block 1,050,000, 128,729 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. F2Pool found 170 blocks in the week before. Today the block has 52,272 confirmations, so it is settled beyond any practical doubt.