Author: Claude, Shenchao TechFlow
Shenchao Guide: An independent miner with only 70 TH/s of computing power successfully mined Bitcoin block 944,306 through CKpool's solo mode, claiming the full reward of 3.128 BTC (approximately $222,000 USD). This computing power represents only 0.000007% of the entire network's total, theoretically taking an average of 300 years to mine a single block.
An independent Bitcoin miner has just accomplished a feat of probability.
On April 9th, a miner with approximately 70 TH/s of power successfully solved Bitcoin block 944,306 using CKpool's solo mining service, receiving the full block reward of 3.128 BTC, worth about $222,000 USD at the time. This consisted of a 3.125 BTC block subsidy and 0.003 BTC in transaction fees.
70 TH/s is roughly equivalent to a Bitmain Antminer S17+ produced in 2019. Compared to the current Bitcoin network's total hashrate of about 1.02 ZH/s (1,020,000,000 TH/s), this single miner's share was a mere 0.000007%.
A One-in-a-Hundred-Thousand Daily Probability, Theoretically a Once-in-300-Years Event
CKpool developer Con Kolivas confirmed the event on platform X, noting that a miner of this hashpower size has a daily probability of solving a block of about one in a hundred thousand, translating to an expected value of roughly once every 300 years.
CKpool is a mining pool service that allows miners to operate in solo mode. Unlike traditional pools that aggregate hashrate and distribute rewards proportionally, solo mode involves miners accepting an extremely low probability of success individually, but should they succeed, they keep the full block reward (minus a 2% platform charge). Miners do not need to operate their own full Bitcoin node; they simply point their mining hardware to CKpool's servers to participate.
This is the 313th solo block produced by CKpool since its launch in 2014.
Second Solo Jackpot in Ten Days, Small Miners Score Surprise Wins
This is not the only recent solo mining surprise. Just about a week earlier, another CKpool miner mined block 943,411, receiving a reward of approximately $210,000 USD. That miner had higher hashrate but was considered small-scale nonetheless, with a daily success probability of about one in twenty-eight thousand.
Two solo wins within ten days constitutes a rare clustering phenomenon in statistical terms, but it does not change the fundamental landscape. Currently, Bitcoin mining is dominated by large mining pools. According to public data, Foundry USA, AntPool, and ViaBTC collectively control over 65% of the network's total hashrate. The operational hashrate of listed mining companies like Bitdeer and MARA Holdings reaches 71 EH/s and 61.7 EH/s respectively, representing a difference of six orders of magnitude compared to 70 TH/s.
For independent miners, solo mining is essentially a lottery ticket: daily electricity costs are only a few dollars, but the winning payout exceeds $220,000 USD. The expected value is negative, but the asymmetric return structure continues to attract a group of mining enthusiasts to participate persistently.
