About block 921,143
Bitcoin block 921,143 was mined by F2Pool on October 28, 2025 at 7:20 AM UTC, 1 min 8 s after block 921,142. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 135 transactions in 0.07 MB (4.4% of the 4 million weight-unit limit). The median transaction paid 0.00 sat/vB, and all fees added up to 0.0012 BTC. With the 3.125 BTC subsidy of halving era 5, F2Pool earned 3.1262 BTC for this block.
Block 921,143 is number 1,848 of 2,016 in difficulty epoch 456; 168 blocks remain until the next difficulty adjustment at block 921,311. The next halving is at block 1,050,000, 128,857 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. F2Pool found 171 blocks in the week before. Today the block has 52,392 confirmations, so it is settled beyond any practical doubt.