About block 902,121
Bitcoin block 902,121 was mined by Foundry USA on June 21, 2025 at 1:34 AM UTC, 1 min 14 s after block 902,120. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 906 transactions in 0.69 MB (40.5% 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 0.0051 BTC. With the 3.125 BTC subsidy of halving era 5, Foundry USA earned 3.1301 BTC for this block.
Block 902,121 is number 970 of 2,016 in difficulty epoch 447; 1,046 blocks remain until the next difficulty adjustment at block 903,167. The next halving is at block 1,050,000, 147,879 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 238 blocks in the week before. Today the block has 73,564 confirmations, so it is settled beyond any practical doubt.