About block 917,521
Bitcoin block 917,521 was mined by SECPOOL on October 3, 2025 at 4:24 PM UTC, 12 min 14 s after block 917,520. That is slower than the 10-minute target; long gaps are normal, since every hash attempt is an independent draw with the same tiny chance.
It confirmed 3,832 transactions in 1.62 MB (99.9% of the 4 million weight-unit limit). The median transaction paid 5.00 sat/vB, down from 6.00 sat/vB in the block before, and all fees added up to 0.0664 BTC. With the 3.125 BTC subsidy of halving era 5, SECPOOL earned 3.1914 BTC for this block.
Block 917,521 is number 242 of 2,016 in difficulty epoch 455; 1,774 blocks remain until the next difficulty adjustment at block 919,295. The next halving is at block 1,050,000, 132,479 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. SECPOOL found 39 blocks in the week before. Today the block has 56,054 confirmations, so it is settled beyond any practical doubt.