About block 903,921
Bitcoin block 903,921 was mined by SpiderPool on July 4, 2025 at 4:17 AM UTC, 15 min 18 s after block 903,920. 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 2,908 transactions in 1.47 MB (99.8% of the 4 million weight-unit limit). The median transaction paid 2.00 sat/vB, and all fees added up to 0.0234 BTC. With the 3.125 BTC subsidy of halving era 5, SpiderPool earned 3.1484 BTC for this block.
Block 903,921 is number 754 of 2,016 in difficulty epoch 448; 1,262 blocks remain until the next difficulty adjustment at block 905,183. The next halving is at block 1,050,000, 146,079 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. SpiderPool found 71 blocks in the week before. Today the block has 71,616 confirmations, so it is settled beyond any practical doubt.