About block 903,813
Bitcoin block 903,813 was mined by MARA Pool on July 3, 2025 at 10:17 AM UTC, 4 min 23 s after block 903,812. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 1,504 transactions in 1.53 MB (99.8% of the 4 million weight-unit limit). The median transaction paid 2.00 sat/vB, up from 2.00 sat/vB in the block before, and all fees added up to 0.0198 BTC. With the 3.125 BTC subsidy of halving era 5, MARA Pool earned 3.1448 BTC for this block.
Block 903,813 is number 646 of 2,016 in difficulty epoch 448; 1,370 blocks remain until the next difficulty adjustment at block 905,183. The next halving is at block 1,050,000, 146,187 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 54 blocks in the week before. Today the block has 71,732 confirmations, so it is settled beyond any practical doubt.