About block 903,021
Bitcoin block 903,021 was mined by F2Pool on June 28, 2025 at 4:40 AM UTC, 5 min 23 s after block 903,020. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 2,928 transactions in 1.81 MB (100.0% of the 4 million weight-unit limit). The median transaction paid 1.00 sat/vB, down from 2.00 sat/vB in the block before, and all fees added up to 0.0194 BTC. With the 3.125 BTC subsidy of halving era 5, F2Pool earned 3.1444 BTC for this block.
Block 903,021 is number 1,870 of 2,016 in difficulty epoch 447; 146 blocks remain until the next difficulty adjustment at block 903,167. The next halving is at block 1,050,000, 146,979 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. F2Pool found 163 blocks in the week before. Today the block has 72,594 confirmations, so it is settled beyond any practical doubt.