About block 903,139
Bitcoin block 903,139 was mined by Foundry USA on June 28, 2025 at 11:19 PM UTC, 23 seconds after block 903,138. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 73 transactions in 0.03 MB (1.8% 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 0.0004 BTC. With the 3.125 BTC subsidy of halving era 5, Foundry USA earned 3.1254 BTC for this block.
Block 903,139 is number 1,988 of 2,016 in difficulty epoch 447; 28 blocks remain until the next difficulty adjustment at block 903,167. The next halving is at block 1,050,000, 146,861 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. Foundry USA found 241 blocks in the week before. Today the block has 72,469 confirmations, so it is settled beyond any practical doubt.