Solo bitcoin miner beats 1-in-180-million odds to land $265,000 block

An extremely small-scale Solo CK miner mined a Bitcoin block on Friday, earning 3.146 BTC plus fees equivalent to nearly $265,000 at current prices, according to onchain data. 

The miner was supplying just six terahashes per second (TH/s) of computing power at the time the block was mined. For reference, a TH is equivalent to 1 trillion hashes per second, while the typical industry measurement of an exahash equals 1 quintillion hashes per second.

The Bitcoin network hit an average hashpower record of over 855.7 EH/s in October, according to The Block’s Hash Rate data. Six TH/s is roughly 7 billionths of 1% of 855 EH/s, or roughly 0.0000007%.

“A miner of this size has only a in 180 million chance of solving a block each day!” CKpool creator Con Kolivas said on X. 

This marks the 308th solo block mined using CKpool software — and the first CK mined block in about three months. It could arguably be called the luckiest solo mined block in recent Bitcoin history: In 2022, a solo miner beat 1 in 1.3 million odds to discover a block using 126 TH/s of power when the Bitcoin hashrate stood around 170 EH/s.

Solo.ckpool.org , launched in 2014, is an anonymous solo mining pool for Bitcoin, where individual miners keep the full block reward if they successfully solve a block, minus a 2% fee.