About block 903,163
Bitcoin block 903,163 was mined by SpiderPool on June 29, 2025 at 4:05 AM UTC, 0 seconds after block 903,162. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 259 transactions in 3.19 MB (99.8% of the 4 million weight-unit limit). The median transaction paid 0.00 sat/vB, down from 1.00 sat/vB in the block before, and all fees added up to 0.0046 BTC. With the 3.125 BTC subsidy of halving era 5, SpiderPool earned 3.1296 BTC for this block.
Block 903,163 is number 2,012 of 2,016 in difficulty epoch 447; 4 blocks remain until the next difficulty adjustment at block 903,167. The next halving is at block 1,050,000, 146,837 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. SpiderPool found 74 blocks in the week before. Today the block has 72,444 confirmations, so it is settled beyond any practical doubt.