About block 903,336
Bitcoin block 903,336 was mined by MARA Pool on June 30, 2025 at 3:05 AM UTC, 14 min 56 s after block 903,335. 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 1,859 transactions in 1.34 MB (99.8% of the 4 million weight-unit limit). The median transaction paid 1.00 sat/vB, down from 2.00 sat/vB in the block before, and all fees added up to 0.0334 BTC. With the 3.125 BTC subsidy of halving era 5, MARA Pool earned 3.1584 BTC for this block.
Block 903,336 is number 169 of 2,016 in difficulty epoch 448; 1,847 blocks remain until the next difficulty adjustment at block 905,183. The next halving is at block 1,050,000, 146,664 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 72,249 confirmations, so it is settled beyond any practical doubt.