About block 903,170
Bitcoin block 903,170 was mined by Foundry USA on June 29, 2025 at 5:32 AM UTC, 2 min 53 s after block 903,169. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 2,900 transactions in 1.56 MB (92.2% of the 4 million weight-unit limit). The median transaction paid 1.00 sat/vB, up from 1.00 sat/vB in the block before, and all fees added up to 0.0145 BTC. With the 3.125 BTC subsidy of halving era 5, Foundry USA earned 3.1395 BTC for this block.
Block 903,170 is number 3 of 2,016 in difficulty epoch 448; 2,013 blocks remain until the next difficulty adjustment at block 905,183. The next halving is at block 1,050,000, 146,830 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 72,434 confirmations, so it is settled beyond any practical doubt.