About block 921,560
Bitcoin block 921,560 was mined by MARA Pool on October 31, 2025 at 3:10 AM UTC, 2 min 55 s after block 921,559. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 5,118 transactions in 1.73 MB (99.8% 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 0.0051 BTC. With the 3.125 BTC subsidy of halving era 5, MARA Pool earned 3.1301 BTC for this block.
Block 921,560 is number 249 of 2,016 in difficulty epoch 457; 1,767 blocks remain until the next difficulty adjustment at block 923,327. The next halving is at block 1,050,000, 128,440 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. MARA Pool found 47 blocks in the week before. Today the block has 51,966 confirmations, so it is settled beyond any practical doubt.