About block 917,666
Bitcoin block 917,666 was mined by SpiderPool on October 4, 2025 at 10:14 PM UTC, 4 min 40 s after block 917,665. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 5,893 transactions in 1.56 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 0.0111 BTC. With the 3.125 BTC subsidy of halving era 5, SpiderPool earned 3.1361 BTC for this block.
Block 917,666 is number 387 of 2,016 in difficulty epoch 455; 1,629 blocks remain until the next difficulty adjustment at block 919,295. The next halving is at block 1,050,000, 132,334 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. SpiderPool found 45 blocks in the week before. Today the block has 55,912 confirmations, so it is settled beyond any practical doubt.