About block 903,436
Bitcoin block 903,436 was mined by SECPOOL on June 30, 2025 at 8:21 PM UTC, 1 seconds after block 903,435. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 214 transactions in 1.03 MB (99.9% 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 0.0201 BTC. With the 3.125 BTC subsidy of halving era 5, SECPOOL earned 3.1451 BTC for this block.
Block 903,436 is number 269 of 2,016 in difficulty epoch 448; 1,747 blocks remain until the next difficulty adjustment at block 905,183. The next halving is at block 1,050,000, 146,564 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 44 blocks in the week before. Today the block has 72,142 confirmations, so it is settled beyond any practical doubt.