About block 921,003
Bitcoin block 921,003 was mined by SECPOOL on October 27, 2025 at 9:25 AM UTC, 5 min 20 s after block 921,002. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 4,823 transactions in 1.68 MB (99.9% 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 0.0132 BTC. With the 3.125 BTC subsidy of halving era 5, SECPOOL earned 3.1382 BTC for this block.
Block 921,003 is number 1,708 of 2,016 in difficulty epoch 456; 308 blocks remain until the next difficulty adjustment at block 921,311. The next halving is at block 1,050,000, 128,997 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. SECPOOL found 40 blocks in the week before. Today the block has 52,575 confirmations, so it is settled beyond any practical doubt.