About block 909,990
Bitcoin block 909,990 was mined by Unknown on August 14, 2025 at 7:54 AM UTC, 22 seconds after block 909,989. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 1,653 transactions in 3.46 MB (99.8% of the 4 million weight-unit limit). The median transaction paid 0.00 sat/vB, and all fees added up to 0.0025 BTC. With the 3.125 BTC subsidy of halving era 5, Unknown earned 3.1275 BTC for this block.
Block 909,990 is number 775 of 2,016 in difficulty epoch 451; 1,241 blocks remain until the next difficulty adjustment at block 911,231. The next halving is at block 1,050,000, 140,010 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. Unknown found 17 blocks in the week before. Today the block has 64,632 confirmations, so it is settled beyond any practical doubt.