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A solo Bitcoin miner operating with minimal computing power defied overwhelming odds early Thursday, successfully solving a block and claiming the entire subsidy along with the transaction fee reward.
The miner validated block 944,306 using solo.ckpool.org, an anonymous solo mining pool launched in 2014. The pool allows participants to retain the full block reward, minus a 2% fee. Bitcoin explorer Mempool reported that the reward included 3.125 BTC in block subsidy (about $222,012) plus roughly 0.003 BTC (around $212) collected from transaction fees.
CKpool developer Con Kolivas confirmed the win on X, emphasizing the rarity of the outcome. He said the miner faced an estimated 1-in-100,000 chance of striking a block on any given day.
“A miner of this size has only a 1 in ~100,000 chance of solving a block per day, or once every 300 years!”
The solo miner’s hashpower accounted for just about 0.0000069% of Bitcoin’s estimated total network hashrate of roughly 1.02 zetahashes per second as of April 9. Such a small share suggests the setup was likely a limited home-based operation rather than a large industrial mining farm or rented cloud infrastructure.
By comparison, publicly listed miners Bitdeer Technologies Group and MARA Holdings report much larger operations, with hashrates of about 71 EH/s and 61.7 EH/s, respectively, based on recent filings.
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