About block 901,990
Bitcoin block 901,990 was mined by MARA Pool on June 20, 2025 at 3:55 AM UTC, 52 seconds after block 901,989. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 148 transactions in 0.48 MB (18.4% 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 0.0017 BTC. With the 3.125 BTC subsidy of halving era 5, MARA Pool earned 3.1267 BTC for this block.
Block 901,990 is number 839 of 2,016 in difficulty epoch 447; 1,177 blocks remain until the next difficulty adjustment at block 903,167. The next halving is at block 1,050,000, 148,010 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. MARA Pool found 58 blocks in the week before. Today the block has 73,706 confirmations, so it is settled beyond any practical doubt.