About block 917,171
Bitcoin block 917,171 was mined by Foundry USA on October 1, 2025 at 3:25 AM UTC, 55 seconds after block 917,170. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 6,378 transactions in 1.63 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 0.0044 BTC. With the 3.125 BTC subsidy of halving era 5, Foundry USA earned 3.1294 BTC for this block.
Block 917,171 is number 1,908 of 2,016 in difficulty epoch 454; 108 blocks remain until the next difficulty adjustment at block 917,279. The next halving is at block 1,050,000, 132,829 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 261 blocks in the week before. Today the block has 56,372 confirmations, so it is settled beyond any practical doubt.