About block 903,445
Bitcoin block 903,445 was mined by MARA Pool on June 30, 2025 at 9:46 PM UTC, 14 min 53 s after block 903,444. 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 2,828 transactions in 1.48 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 0.0323 BTC. With the 3.125 BTC subsidy of halving era 5, MARA Pool earned 3.1573 BTC for this block.
Block 903,445 is number 278 of 2,016 in difficulty epoch 448; 1,738 blocks remain until the next difficulty adjustment at block 905,183. The next halving is at block 1,050,000, 146,555 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 72,133 confirmations, so it is settled beyond any practical doubt.