About block 901,163
Bitcoin block 901,163 was mined by ULTIMUSPOOL on June 14, 2025 at 3:35 AM UTC, 52 seconds after block 901,162. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 1,764 transactions in 1.38 MB (99.8% 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 0.0172 BTC. With the 3.125 BTC subsidy of halving era 5, ULTIMUSPOOL earned 3.1422 BTC for this block.
Block 901,163 is number 12 of 2,016 in difficulty epoch 447; 2,004 blocks remain until the next difficulty adjustment at block 903,167. The next halving is at block 1,050,000, 148,837 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. ULTIMUSPOOL found 0 blocks in the week before. Today the block has 74,762 confirmations, so it is settled beyond any practical doubt.