A solo bitcoin miner beat monumental odds to solve a block and take home the full subsidy and transaction fee reward early Thursday.
The miner collected a total of 3.128 BTC ($222,012) for mining block 944,306, using solo bitcoin-mining software from CKpool, according to the Bitcoin explorer Mempool. This comprised 3.125 BTC in block subsidy rewards ($221,800) and 0.003 BTC ($212) in transaction fees.
"Congratulations to miner bc1q~edvj with only 70TH for solving the 313th solo block at eusolo.ckpool.org!" CKpool developer Con Kolivas posted on X, "A miner of this size has only a 1 in ~100,000 chance of solving a block per day, or once every 300 years!"
That hashrate is equivalent to just one 2019-era Bitmain Antminer S17+ mining machine, for example.
The solo miner's hashpower is equivalent to about 0.0000069% of the Bitcoin network's total estimated hashrate of 1.02 ZH/s on April 9, per Mempool's data, which measures the total computational power dedicated to the network. For comparison, leading public bitcoin miners Bitdeer (BTDR) and MARA Holdings (MARA) manage a hashrate of approximately 71 EH/s and 61.7 EH/s, respectively, according to recent disclosures.
While CKpool is technically a mining pool, it is not used in the conventional sense where miners combine their hashrate for a better chance at block discovery by collaborating and sharing the rewards. Instead, the vast majority of users use CKpool for solo mining, accepting a much lower probability of finding a block on their own, but keeping the entire reward for themselves if they do, minus a small fee. It avoids the need to run their own infrastructure, making it a simple setup compared to true solo mining.
However, it's not the first time a solo miner has picked up the entirety of the block rewards.
Just last week, another miner using CKpool in a solo mining configuration collected roughly $210,000 for mining block 943,411, ending a 33-day CKpool drought. A miner of that size has roughly a 1-in-28,000 chance of finding a block on any given day, Kolivas said at the time.
A miner beat one-in-100-year odds to win a $350,000 block reward in September, and another beat 1-in-82-year odds in December to win a $285,000 block reward.
Solo miners with more substantial managed or rented hashrates have also found several bitcoin blocks in recent months.
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