About block 909,909
Bitcoin block 909,909 was mined by MARA Pool on August 13, 2025 at 9:37 PM UTC, 3 min 35 s after block 909,908. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 1,344 transactions in 0.93 MB (49.1% of the 4 million weight-unit limit). The median transaction paid 1.00 sat/vB, up from 1.00 sat/vB in the block before, and all fees added up to 0.0119 BTC. With the 3.125 BTC subsidy of halving era 5, MARA Pool earned 3.1369 BTC for this block.
Block 909,909 is number 694 of 2,016 in difficulty epoch 451; 1,322 blocks remain until the next difficulty adjustment at block 911,231. The next halving is at block 1,050,000, 140,091 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 53 blocks in the week before. Today the block has 64,748 confirmations, so it is settled beyond any practical doubt.