About block 921,430
Bitcoin block 921,430 was mined by MARA Pool on October 30, 2025 at 7:29 AM UTC, 5 min 26 s after block 921,429. That is faster than the 10-minute average the network aims for: blocks come in bursts because finding one is pure chance.
It confirmed 4,219 transactions in 1.62 MB (92.6% of the 4 million weight-unit limit). The median transaction paid 0.00 sat/vB, and all fees added up to 0.0074 BTC. With the 3.125 BTC subsidy of halving era 5, MARA Pool earned 3.1324 BTC for this block.
Block 921,430 is number 119 of 2,016 in difficulty epoch 457; 1,897 blocks remain until the next difficulty adjustment at block 923,327. The next halving is at block 1,050,000, 128,570 blocks after this one.
Its hash starts with 21 zeros: that is the proof of work, a number below the target that the whole network’s hashrate had to search for. MARA Pool found 49 blocks in the week before. Today the block has 52,137 confirmations, so it is settled beyond any practical doubt.