About block 903,440
Bitcoin block 903,440 was mined by ViaBTC on June 30, 2025 at 9:12 PM UTC, 4 min 55 s after block 903,439. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 1,135 transactions in 1.24 MB (99.8% of the 4 million weight-unit limit). The median transaction paid 2.00 sat/vB, down from 3.00 sat/vB in the block before, and all fees added up to 0.0277 BTC. With the 3.125 BTC subsidy of halving era 5, ViaBTC earned 3.1527 BTC for this block.
Block 903,440 is number 273 of 2,016 in difficulty epoch 448; 1,743 blocks remain until the next difficulty adjustment at block 905,183. The next halving is at block 1,050,000, 146,560 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. ViaBTC found 95 blocks in the week before. Today the block has 72,138 confirmations, so it is settled beyond any practical doubt.