About block 909,666
Bitcoin block 909,666 was mined by Foundry USA on August 12, 2025 at 7:03 AM UTC, 3 min 34 s after block 909,665. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 4,364 transactions in 1.73 MB (99.8% 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 0.0103 BTC. With the 3.125 BTC subsidy of halving era 5, Foundry USA earned 3.1353 BTC for this block.
Block 909,666 is number 451 of 2,016 in difficulty epoch 451; 1,565 blocks remain until the next difficulty adjustment at block 911,231. The next halving is at block 1,050,000, 140,334 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. Foundry USA found 247 blocks in the week before. Today the block has 65,108 confirmations, so it is settled beyond any practical doubt.