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The Bitcoin mining community is discussing another rare “digital lottery” outcome after a solo miner with a hashrate of about 70 TH/s mined block 313 on Solo CKPool. Pool administrator Con Kolivas (DR-ck) said the miner’s odds were roughly 1 in 100,000 per day, implying an average expected time of about 300 years to find a block with that level of power.
Kolivas calculated that the miner’s probability of finding these blocks was about one in 100,000 daily. The miner received the full block reward of 3.125 BTC plus transaction fees, which Kolivas estimated to be at least $220,000 based on the current Bitcoin price.
Kolivas also noted a fee-related detail from the mined block: the minimum fee rate returned was 1 sat/vB. He said the previous block on the pool had an abnormally low minimum fee as well, and that this was not an intentional change. Instead, he attributed it to default settings after updating the Bitcoin node.
The event comes as mining continues to industrialize, with large operators such as Riot Platforms and MARA Digital Holdings dominating the sector. While these companies sell Bitcoin, they also maintain a significant share of the BTC mining market.
Even with record network difficulty exceeding 140 trillion hashes per second, solo miners still occasionally find blocks. Over the past 12 months, 22 solo wins were recorded, averaging a little more than once every two weeks.
Kolivas framed the block 313 result as evidence that decentralization remains active. He emphasized that Bitcoin’s process is effectively memoryless: each individual hash has the same tiny chance of becoming the winning one, whether it comes from a large data center or from a much smaller setup.
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