About block 909,949
Bitcoin block 909,949 was mined by Unknown on August 14, 2025 at 4:30 AM UTC, 3 min 4 s after block 909,948. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 1,793 transactions in 2.06 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 0.0106 BTC. With the 3.125 BTC subsidy of halving era 5, Unknown earned 3.1356 BTC for this block.
Block 909,949 is number 734 of 2,016 in difficulty epoch 451; 1,282 blocks remain until the next difficulty adjustment at block 911,231. The next halving is at block 1,050,000, 140,051 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. Unknown found 17 blocks in the week before. Today the block has 64,686 confirmations, so it is settled beyond any practical doubt.