Author: Claude, Deep Tide TechFlow

Deep Tide Guide: An independent miner with a computing power of only 70 TH/s successfully mined Bitcoin block 944,306 through CKpool solo mode, claiming the full reward of 3.128 BTC (approximately $222,000). This computing power only accounts for 0.000007% of the entire network, theoretically allowing for a block to be mined on average every 300 years.

An independent Bitcoin miner has just completed a significant feat in terms of probability.

On April 9, a mining machine with a computing power of about 70 TH/s successfully solved Bitcoin block 944,306 through CKpool's solo mining service, receiving a full block reward of 3.128 BTC, which was about $222,000 based on the exchange rate at that time. Among these, 3.125 BTC was the block subsidy, and 0.003 BTC was the transaction fee.

70 TH/s is roughly equivalent to a Bitmain Antminer S17+ produced in 2019. In the face of the current total Bitcoin network computing power of about 1.02 ZH/s (or 1 billion TH/s), the power of this mining machine accounts for only 0.000007%.

A probability of one in a hundred thousand each day, theoretically once every 300 years

CKpool developer Con Kolivas confirmed this incident on the X platform and pointed out that the probability of miners at this computing power level solving a block is about one in a hundred thousand, which translates to an expected value of about once every 300 years.

CKpool is a mining pool service that allows miners to operate in solo mode. Unlike traditional mining pools that concentrate computing power and distribute rewards proportionally, in solo mode, miners bear a very low success probability but can retain the full block reward (minus a 2% platform fee) once they hit a block. Miners do not need to operate a complete Bitcoin full node themselves; they only need to point their mining machines to CKpool's servers to participate.

This is the 313th solo block produced by CKpool since its launch in 2014.

The second solo win in ten days, a small miner wins consecutively

This is not the only recent solo mining surprise. About a week ago, another CKpool miner mined block 943,411, receiving about $210,000 in rewards. This miner had higher computing power but was still on a small scale, with a daily success probability of about one in 28,000.

Winning twice in solo mode within ten days is a statistically rare clustering phenomenon, but it does not change the fundamentals. Currently, Bitcoin mining is dominated by large mining pools. According to public data, Foundry USA, AntPool, and ViaBTC control over 65% of the computing power in total. Public mining companies like Bitdeer and MARA Holdings have operating computing powers of 71 EH/s and 61.7 EH/s respectively, evidencing a six-order magnitude difference from 70 TH/s.

For independent miners, solo mining is essentially a lottery: the daily electricity expenses are only a few dollars, but the winning return exceeds $220,000. The expected value is negative, but the asymmetric return structure continues to attract a group of mining enthusiasts to participate.