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Unbekannter Bitcoin-Miner gewinnt 200.000 Dollar
This week, an unknown Bitcoin miner made headlines by renting cloud computing power for approximately $75 and successfully mining the entire Bitcoin block 938,092. The reward for this achievement was 3.125 Bitcoin, which is equivalent to around $200,000, resulting in an impressive return of about 2,600 times the initial investment.
Bitcoin operates without a bank or central authority, relying instead on a global network of computers to verify transactions and compile them into blocks. The first miner to complete a block receives a Bitcoin reward, a process known as mining. However, the chances of success are slim, as it involves extensive trial and error, with billions of calculations per second until the correct solution is found.
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"Chancen deutlich schlechter als die meisten Lotterien"
Most miners join mining pools to combine their computing power, sharing both the workload and the rewards. In contrast, solo mining, where an individual miner competes alone, presents a significantly lower chance of success. In this case, the miner had only about a 1 in 8,000 chance of winning per day, which is considerably worse than most lotteries.
The current trend of cloud mining allows individuals to rent computing power without needing their own hardware, transforming solo mining from a niche hobby into a form of digital lottery with transparent odds and occasional substantial payouts.
While this case is extraordinary, it is not unique. Last year, 21 solo miners successfully found complete blocks, collectively earning 66 Bitcoin, valued at approximately $4.1 million. This translates to an average success rate of one every 17 days, a 17% increase from the previous year.
In summary, the recent success of the unknown miner highlights the potential for significant returns in Bitcoin mining, albeit with low odds of success. The phenomenon of cloud mining is reshaping the landscape, making it more accessible to individuals.
Bitcoin-Crash kostet MARA 1,7 Milliarden Dollar Verlust
MARA Holdings Inc. reported a staggering net loss of $1.7 billion in the fourth quarter of 2025, a stark contrast to the $528 million profit recorded in the same period the previous year. This loss was primarily attributed to a 30% decline in Bitcoin prices, necessitating a $1.5 billion write-down of their cryptocurrency holdings.
The company's revenue for the quarter fell by 6% to $202.3 million, down from $214.4 million in Q4 2024. The adjusted EBITDA also saw a significant drop, landing at -$1.49 billion compared to a positive $796 million the year before. For the entire year, MARA reported a net loss of $1.3 billion, a sharp decline from the $541 million net profit in 2024.
| Metric | Q4 2025 | Q4 2024 |
|---|---|---|
| Net Loss | $1.7 billion | $528 million profit |
| Revenue | $202.3 million | $214.4 million |
| Adjusted EBITDA | - $1.49 billion | $796 million |
Despite the losses, MARA held a total of 53,822 BTC at the end of 2025, which was 20% more than the previous year. At a Bitcoin price of approximately $87,498, these holdings were valued at around $4.7 billion. The company also generated $32.1 million in interest from lending its coins.
In response to the challenges, MARA is pivoting towards AI and digital infrastructure, announcing a strategic partnership with Starwood Digital Ventures to develop large data centers. This partnership aims to deliver approximately 1 gigawatt of IT capacity, with plans for more than 2.5 gigawatts in the future.
In conclusion, MARA's significant losses underscore the volatility of the Bitcoin market, while the company's strategic shift towards AI and infrastructure aims to stabilize its revenue streams and reduce dependency on Bitcoin price fluctuations.
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