About block 909,859
Bitcoin block 909,859 was mined by Foundry USA on August 13, 2025 at 1:39 PM UTC, 5 min 16 s after block 909,858. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 3,508 transactions in 1.64 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 0.0192 BTC. With the 3.125 BTC subsidy of halving era 5, Foundry USA earned 3.1442 BTC for this block.
Block 909,859 is number 644 of 2,016 in difficulty epoch 451; 1,372 blocks remain until the next difficulty adjustment at block 911,231. The next halving is at block 1,050,000, 140,141 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 254 blocks in the week before. Today the block has 64,818 confirmations, so it is settled beyond any practical doubt.