About block 903,017
Bitcoin block 903,017 was mined by SECPOOL on June 28, 2025 at 4:12 AM UTC, 4 min 57 s after block 903,016. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 2,578 transactions in 1.56 MB (99.9% 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 0.0232 BTC. With the 3.125 BTC subsidy of halving era 5, SECPOOL earned 3.1482 BTC for this block.
Block 903,017 is number 1,866 of 2,016 in difficulty epoch 447; 150 blocks remain until the next difficulty adjustment at block 903,167. The next halving is at block 1,050,000, 146,983 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. SECPOOL found 43 blocks in the week before. Today the block has 72,598 confirmations, so it is settled beyond any practical doubt.