About block 909,109
Bitcoin block 909,109 was mined by Foundry USA on August 8, 2025 at 2:18 AM UTC, 39 seconds after block 909,108. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 4,518 transactions in 1.87 MB (99.8% of the 4 million weight-unit limit). The median transaction paid 0.00 sat/vB, down from 2.00 sat/vB in the block before, and all fees added up to 0.0072 BTC. With the 3.125 BTC subsidy of halving era 5, Foundry USA earned 3.1322 BTC for this block.
Block 909,109 is number 1,910 of 2,016 in difficulty epoch 450; 106 blocks remain until the next difficulty adjustment at block 909,215. The next halving is at block 1,050,000, 140,891 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. Foundry USA found 242 blocks in the week before. Today the block has 65,769 confirmations, so it is settled beyond any practical doubt.