About block 903,450
Bitcoin block 903,450 was mined by MARA Pool on June 30, 2025 at 11:07 PM UTC, 6 min 18 s after block 903,449. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 1,347 transactions in 1.25 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 0.0363 BTC. With the 3.125 BTC subsidy of halving era 5, MARA Pool earned 3.1613 BTC for this block.
Block 903,450 is number 283 of 2,016 in difficulty epoch 448; 1,733 blocks remain until the next difficulty adjustment at block 905,183. The next halving is at block 1,050,000, 146,550 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 59 blocks in the week before. Today the block has 72,127 confirmations, so it is settled beyond any practical doubt.