About block 909,139
Bitcoin block 909,139 was mined by MARA Pool on August 8, 2025 at 7:27 AM UTC, 14 min 50 s after block 909,138. 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 3,896 transactions in 1.57 MB (99.9% of the 4 million weight-unit limit). The median transaction paid 3.00 sat/vB, up from 2.00 sat/vB in the block before, and all fees added up to 0.0398 BTC. With the 3.125 BTC subsidy of halving era 5, MARA Pool earned 3.1648 BTC for this block.
Block 909,139 is number 1,940 of 2,016 in difficulty epoch 450; 76 blocks remain until the next difficulty adjustment at block 909,215. The next halving is at block 1,050,000, 140,861 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 54 blocks in the week before. Today the block has 65,734 confirmations, so it is settled beyond any practical doubt.