About block 921,991
Bitcoin block 921,991 was mined by F2Pool on November 3, 2025 at 1:59 AM UTC, 5 min 0 s after block 921,990. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 838 transactions in 0.55 MB (40.9% of the 4 million weight-unit limit). The median transaction paid 0.00 sat/vB, and all fees added up to 0.0077 BTC. With the 3.125 BTC subsidy of halving era 5, F2Pool earned 3.1327 BTC for this block.
Block 921,991 is number 680 of 2,016 in difficulty epoch 457; 1,336 blocks remain until the next difficulty adjustment at block 923,327. The next halving is at block 1,050,000, 128,009 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 51,552 confirmations, so it is settled beyond any practical doubt.