About block 909,649
Bitcoin block 909,649 was mined by MARA Pool on August 12, 2025 at 3:41 AM UTC, 5 min 43 s after block 909,648. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 1,035 transactions in 0.63 MB (40.2% 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 0.0127 BTC. With the 3.125 BTC subsidy of halving era 5, MARA Pool earned 3.1377 BTC for this block.
Block 909,649 is number 434 of 2,016 in difficulty epoch 451; 1,582 blocks remain until the next difficulty adjustment at block 911,231. The next halving is at block 1,050,000, 140,351 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. MARA Pool found 53 blocks in the week before. Today the block has 65,138 confirmations, so it is settled beyond any practical doubt.