About block 917,578
Bitcoin block 917,578 was mined by MARA Pool on October 4, 2025 at 4:27 AM UTC, 4 min 42 s after block 917,577. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 2,053 transactions in 1.05 MB (57.1% 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 0.0117 BTC. With the 3.125 BTC subsidy of halving era 5, MARA Pool earned 3.1367 BTC for this block.
Block 917,578 is number 299 of 2,016 in difficulty epoch 455; 1,717 blocks remain until the next difficulty adjustment at block 919,295. The next halving is at block 1,050,000, 132,422 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. MARA Pool found 49 blocks in the week before. Today the block has 56,011 confirmations, so it is settled beyond any practical doubt.