About block 903,345
Bitcoin block 903,345 was mined by SECPOOL on June 30, 2025 at 3:48 AM UTC, 9 min 34 s after block 903,344. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 3,240 transactions in 1.43 MB (86.0% of the 4 million weight-unit limit). The median transaction paid 1.00 sat/vB, and all fees added up to 0.0218 BTC. With the 3.125 BTC subsidy of halving era 5, SECPOOL earned 3.1468 BTC for this block.
Block 903,345 is number 178 of 2,016 in difficulty epoch 448; 1,838 blocks remain until the next difficulty adjustment at block 905,183. The next halving is at block 1,050,000, 146,655 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 42 blocks in the week before. Today the block has 72,240 confirmations, so it is settled beyond any practical doubt.