About block 903,903
Bitcoin block 903,903 was mined by Foundry USA on July 4, 2025 at 1:36 AM UTC, 1 min 18 s after block 903,902. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 1,671 transactions in 1.21 MB (71.4% 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 0.0086 BTC. With the 3.125 BTC subsidy of halving era 5, Foundry USA earned 3.1336 BTC for this block.
Block 903,903 is number 736 of 2,016 in difficulty epoch 448; 1,280 blocks remain until the next difficulty adjustment at block 905,183. The next halving is at block 1,050,000, 146,097 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. Foundry USA found 252 blocks in the week before. Today the block has 71,634 confirmations, so it is settled beyond any practical doubt.