Once-in-300-Years? Independent, Aged Mining Rig “Hits the Jackpot” and Solely Claims $220,000 Bitcoin Block Reward
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Once-in-300-Years? Independent, Aged Mining Rig “Hits the Jackpot” and Solely Claims $220,000 Bitcoin Block Reward
This computing power accounts for only 0.000007% of the entire network, meaning—under theoretical conditions—a block can be mined on average only once every 300 years.
Navigating Web3 tides with focused insightsAuthor: Claude, TechFlow
TechFlow Intro: An independent Bitcoin miner with only 70 TH/s of hash rate successfully mined Bitcoin block 944,306 in solo mode via CKpool, claiming the full block reward of 3.128 BTC (approximately $222,000). This hash rate represents just 0.000007% of the network’s total hash rate—making such a win theoretically expected only once every 300 years.
An independent Bitcoin miner has just accomplished a feat bordering on statistical impossibility.
On April 9, a mining rig with roughly 70 TH/s of hash rate solved Bitcoin block 944,306 using CKpool’s solo mining service, earning the full block reward of 3.128 BTC—worth approximately $222,000 at the time. Of this, 3.125 BTC was the block subsidy and 0.003 BTC came from transaction fees.
A hash rate of 70 TH/s is roughly equivalent to a 2019 Bitmain Antminer S17+, which pales in comparison to the Bitcoin network’s current estimated total hash rate of ~1.02 ZH/s (i.e., 1 billion TH/s). This rig thus accounts for only 0.000007% of the network’s total hash power.
A One-in-100,000 Daily Chance—Theoretically Once Every 300 Years
Con Kolivas, CKpool’s developer, confirmed the event on X (formerly Twitter), noting that a miner with this level of hash rate has roughly a 1-in-100,000 chance of solving a block each day—translating to an expected interval of about once every 300 years.
CKpool is a mining pool service enabling miners to operate in solo mode. Unlike traditional pools—which aggregate hash power and distribute rewards proportionally—solo mode entails extremely low odds of success, but any successful block yields the full block reward (minus a 2% platform fee). Miners need not run or maintain a full Bitcoin node themselves; they simply point their mining hardware to CKpool’s servers to participate.
This marks the 313th solo-mined block produced by CKpool since its launch in 2014.
Second Solo Win Within Ten Days—Small-Scale Miners Strike Back-to-Back
This is not the only recent solo mining surprise. Roughly one week earlier, another CKpool miner solved block 943,411, earning a reward worth approximately $210,000. Though that miner’s hash rate was higher, it still qualified as small-scale—carrying a daily success probability of about 1 in 28,000.
Two solo wins within ten days constitute a statistically rare clustering phenomenon—but do not alter the underlying reality. Bitcoin mining remains dominated by large-scale pools: public data shows Foundry USA, AntPool, and ViaBTC collectively control over 65% of the network’s total hash rate. Publicly listed mining firms like Bitdeer and MARA Holdings operate hash rates of 71 EH/s and 61.7 EH/s respectively—six orders of magnitude greater than 70 TH/s.
For independent miners, solo mining is effectively a lottery: daily electricity costs amount to just a few dollars, yet a win delivers over $220,000. The expected value remains negative—but the asymmetric payoff structure continues to attract a dedicated cohort of mining enthusiasts.
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