About block 903,666
Bitcoin block 903,666 was mined by Foundry USA on July 2, 2025 at 12:59 PM UTC, 55 seconds after block 903,665. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 261 transactions in 0.21 MB (11.5% of the 4 million weight-unit limit). The median transaction paid 1.00 sat/vB, and all fees added up to 0.0021 BTC. With the 3.125 BTC subsidy of halving era 5, Foundry USA earned 3.1271 BTC for this block.
Block 903,666 is number 499 of 2,016 in difficulty epoch 448; 1,517 blocks remain until the next difficulty adjustment at block 905,183. The next halving is at block 1,050,000, 146,334 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 247 blocks in the week before. Today the block has 71,896 confirmations, so it is settled beyond any practical doubt.