About block 903,129
Bitcoin block 903,129 was mined by Braiins Pool on June 28, 2025 at 10:07 PM UTC, 2 min 53 s after block 903,128. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 1,839 transactions in 1.79 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 0.0241 BTC. With the 3.125 BTC subsidy of halving era 5, Braiins Pool earned 3.1491 BTC for this block.
Block 903,129 is number 1,978 of 2,016 in difficulty epoch 447; 38 blocks remain until the next difficulty adjustment at block 903,167. The next halving is at block 1,050,000, 146,871 blocks after this one.
Its hash starts with 21 zeros: that is the proof of work, a number below the target that the whole network’s hashrate had to search for. Braiins Pool found 23 blocks in the week before. Today the block has 72,479 confirmations, so it is settled beyond any practical doubt.