Solo Bitcoin Miner Hits $349K Jackpot with 0.004% Chance

04 Jul, 2025

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Expertise : Crypto News & Market Analysis, Content Strategy & SEO Writing

Pooja Khardia is a seasoned crypto content writer with 6+ years of experience in writing, including in blockchain, cryptocurrency, DeFi, and digital finance reporting. In her adventure journey, she is currently working with CoinGape Media and leading their Trending Section. Here, she uses her expertise to deliver analytics, market insights, price predictions, and information on what’s trending in the crypto space, aiming to keep the crypto and web3 community updated with market trends and important insights. Known for a user-centric and straightforward writing style, Pooja is passionate about making crypto easy and accessible. Her writing blends market research with storytelling, helping readers stay ahead in a fast-paced industry. When not behind the keyboard, Pooja embraces her creative side through drawing and crafting. Connect with Pooja on LinkedIn or X.

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Solo Bitcoin Miner Hits $349K Jackpot with 0.004% Chance

Solo Bitcoin Miner Mines 903883 Block Winning $349k

The anonymous Bitcoin miner succeeded in mining an entire block number 903883. The reward for mining this entire block was 3.173 BTC, resulting in the individual making $349,028 at the current BTC price of $108.4k.

Crypto analysts, the Bitcoin Historian notes this epic milestone as it’s a rare event since bigger corporations and groups succeed with most due to high computation power and other factors. Notably, the miner used only 2.3 peahashes per second (PH/s) of hash power, and the mining occurred through the CKpool solo mining pool.

CoinTelegraph noted that the miner of this size has only 1 in 2,800 chances of solving an entire block by himself. That means it happens only once in 8 years on average, making the odds of the Solo miner winning just 0.004% (1 in 375,300).

Besides, winning an entire block would require the miner to have 166,000 TH/s of hash power, equivalent to 500 Antminer S21 Hydro units. This would cost the individual millions of dollars in upfront investment alone. Not to forget the high electricity charges and limitations.

Other Solo Bitcoin Miner Milestones

Although the odds of a solo BTC miner winning are quite low, many such milestones have been noted in the past. In June 2025, a miner succeeded in mining the 899,826 block and earned $330,000 in reward. Before this, another miner mined 883,181 block in February 2025, earning nearly $300,000.

Talking about the individual BTC trader milestone, JohnGalt has also made big on this digital asset. With the Bitcoin Gold bar bought in 2012, he turned a $500 investment into $10 million after redeeming it this year. During this period, the token’s worth grew from a few dollars to six figures.

Investment disclaimer: The content reflects the author’s personal views and current market conditions. Please conduct your own research before investing in cryptocurrencies, as neither the author nor the publication is responsible for any financial losses.

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Frequently Asked Questions (FAQs)

1. Which block does the Bitcoin miner win?

The solo miner earned 3.173 BTC on block 903883.

2. What mining setup did the solo miner use?

The miner used 2.3 PH/s of hash power and participated through the CKpool solo mining pool.

3. How rare is it for the solo miners to win a block reward?

The odds are 1 in 375,000, or roughly once every 8 years, for a miner with this setup.

Why Trust CoinGape

CoinGape has covered the cryptocurrency industry since 2017, aiming to provide informative insights Read more…to our readers. Our journal analysts bring years of experience in market analysis and blockchain technology to ensure factual accuracy and balanced reporting. By following our Editorial Policy, our writers verify every source, fact-check each story, rely on reputable sources, and attribute quotes and media correctly. We also follow a rigorous Review Methodology when evaluating exchanges and tools. From emerging blockchain projects and coin launches to industry events and technical developments, we cover all facets of the digital asset space with unwavering commitment to timely, relevant information.