About block 921,275
Bitcoin block 921,275 was mined by MARA Pool on October 29, 2025 at 3:32 AM UTC, 16 min 16 s after block 921,274. 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 3,825 transactions in 1.59 MB (99.8% of the 4 million weight-unit limit). The median transaction paid 1.00 sat/vB, down from 2.00 sat/vB in the block before, and all fees added up to 0.0192 BTC. With the 3.125 BTC subsidy of halving era 5, MARA Pool earned 3.1442 BTC for this block.
Block 921,275 is number 1,980 of 2,016 in difficulty epoch 456; 36 blocks remain until the next difficulty adjustment at block 921,311. The next halving is at block 1,050,000, 128,725 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 52,268 confirmations, so it is settled beyond any practical doubt.