A solo BTC whale with a small rig has successfully mined the entire block reward equivalent to 3,173 BTC, worth nearly $350,000.
Solo miner Solo CK has broken the statistics with a hardware hashrate of only 2.3 PH/s, much lower than the global Bitcoin network. This is a testament to the power of individual technology and perseverance in the cryptocurrency mining industry.
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Solo CK successfully mined Bitcoin block number 903,883 with 3,173 BTC, worth about $349,000.
The solo miner rig's hashrate is 2.3 PH/s, which is a very small percentage compared to the entire network's 600-700 EH/s.
Solo miner uses CKpool, a device equivalent to 10 Antminer S21s, with a block finding probability of about 1 time every 8 years.
What Are Solo Bitcoin Whales and How Are They Successful?
According to CKpool developer Con Kolivas, Solo CK is a solo whale who owns a mining rig with an average hashrate of around 2.3 PH/s. This allowed him to solve a Bitcoin block, earning a reward of 3,173 BTC (≈ $349,000) for mining block number 903,883. This is a rare feat in the industry as the global Bitcoin network has a mining rate ranging from 600 to 700 EH/s, meaning Solo CK accounts for less than 0.004% of the total hashrate.
A CKpool member shared on social network X: “Solo CK successfully mined a Bitcoin block while the mining power was only 0.004% of the network, rarer than winning the lottery.”
Con Kolivas, Admin CKpool, July 2025
Solo CK's rig is estimated to be equivalent to the combined power of 10 Antminer S21s – high-end mining equipment. Data from CKpool shows that the average hashrate used in the mining process was 2.17-2.22 PH/s over the week before, peaking at 2.3 PH/s in the hour before the block was successfully mined. The block difficulty at the time was around 941 trillion, and Solo CK only spent 68% of the total expected effort to find the block, indicating an earlier-than-average win.
What is the success rate of solo whales in the Bitcoin network?
According to Con Kolivas, the probability of a solo miner with 2.3 PH/s finding a block per day is only about 0.004%, equivalent to an average of one block after 8 years of operation. This is an extremely rare event and demonstrates the endurance and hardware optimization of this miner.
Other solo miners have also recorded success with rewards of more than 3 BTC in 2025. For example, in February 2025, another solo miner solved block 883,181 and received 3.125 BTC, equivalent to more than $300,000. In March 2025, a solo miner using Bitaxe with 3.3 TH/s won block 887,212 and received 3.15 BTC (~$263,000). These cases are also rare, with a solo miner having a daily block hit rate of less than 1 in a million, meaning that on average, it would take thousands of years to hit a block.
“The fact that a solo miner with limited hardware managed to mine a complete Bitcoin block is a testament to the power of technology and the passion of individuals in the cryptocurrency industry.”
Con Kolivas, CKpool Admin, March 2025
CKpool and the Bitcoin Whale's Solo Mining Equipment
CKpool is a platform trusted by many solo miners thanks to its user-friendly interface and reward optimization capabilities. Solo CK connects to CKpool, operating the system at about 2.3 PH/s – equivalent to 10 Antminer S21 or equivalent high-end mining equipment.
For Bitaxe – a DIY device based on the Antminer S9 ASIC chip – with a mining speed of about 480 GH/s, it is often used by hobbyists. Despite its low speed, Bitaxe has also brought miners to success many times with an extremely small percentage of the Bitcoin network.
Bitcoin Network and the Importance of Global Hashrate
The global Bitcoin network currently has a mining speed of 600 to 700 EH/s, creating a huge level of security and decentralization. Most Bitcoin whales have a huge hashrate of hundreds to thousands of PH/s, creating an overwhelming advantage in block verification. However, solo whales with small equipment can still surpass the statistics with individual victories like Solo CK, demonstrating individual technical achievements when applying the right technology and mining strategy.
Frequently Asked Questions
What is a Bitcoin solo whale? A Bitcoin solo whale is a miner who operates independently with his own mining hardware, does not participate in a large pool but can still successfully mine Bitcoin blocks. What is the success rate of a solo miner of about 2.3 PH/s? About 0.004% per day, equivalent to an average of one block after 8 years of continuous operation. What is CKpool and why should solo miners use it? CKpool is a platform that supports solo miners to connect to the network easily, optimizes rewards and allows direct control of mining hardware. What is special about the Bitaxe device? Bitaxe is a DIY Bitcoin mining device, using the Antminer S9 ASIC chip, suitable for hobbyists with a hashrate of about 480 GH/s. Why does the Bitcoin network need a large hashrate? High hashrate helps to better secure the network, prevent 51% attacks and ensure the decentralization and stability of the Blockchain.
Source: https://tintucbitcoin.com/miner-bitcoin-don-le-trung-3173-btc/
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