A solo Bitcoin miner operating with minimal computing power defied overwhelming odds early Thursday, successfully solving a block and claiming the full subsidy plus transaction fees.
The miner validated block 944,306 using solo.ckpool.org, an anonymous solo mining pool launched in 2014 that allows participants to keep the entire block reward minus a 2% fee. According to blockchain explorer data, the reward included a 3.125 BTC block subsidy (about $222,012) and roughly 0.003 BTC (around $212) in transaction fees.
CKpool developer Con Kolivas confirmed the win on X, noting the miner faced roughly a 1-in-100,000 chance of finding a block on any given day.
The solo miner’s hashpower represented about 0.0000069% of Bitcoin’s estimated total network hashrate of roughly 1.02 ZH/s as of April 9. That tiny share suggests the setup was likely a small cluster of home-based ASIC machines rather than a large industrial farm or rented cloud rigs.
For context, publicly listed miners like Bitdeer Technologies Group and MARA Holdings report vastly larger operations, with recent filings showing hashrates of about 71 EH/s and 61.7 EH/s, respectively.
Solo block wins on CKpool remain rare but not unheard of. This block marks the 313th solo win recorded on CKpool since its 2014 launch. In November, a miner running just 6 TH/s—equivalent to a single older ASIC and facing roughly 1-in-180-million odds—won about $266,000. In December, a roughly 270 TH/s miner beat roughly 1-in-30,000 daily odds to earn about $284,661. And last week, another CKpool solo miner mined block 943,411 for roughly $210,000, ending a 33-day stretch without a CKpool block.
