About block 903,557
Bitcoin block 903,557 was mined by MARA Pool on July 1, 2025 at 5:38 PM UTC, 5 min 11 s after block 903,556. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 2,566 transactions in 1.40 MB (99.8% of the 4 million weight-unit limit). The median transaction paid 2.00 sat/vB, down from 3.00 sat/vB in the block before, and all fees added up to 0.0310 BTC. With the 3.125 BTC subsidy of halving era 5, MARA Pool earned 3.1560 BTC for this block.
Block 903,557 is number 390 of 2,016 in difficulty epoch 448; 1,626 blocks remain until the next difficulty adjustment at block 905,183. The next halving is at block 1,050,000, 146,443 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. MARA Pool found 59 blocks in the week before. Today the block has 72,016 confirmations, so it is settled beyond any practical doubt.