How unlikely a solo minor was to beat the odds and win a Bitcoin block?
On June 5, 2025, a solo minor succeeded what most would call impossible: to resolve a Bitcoin block alone and earn more than $ 330,000 in Bitcoin Block awards.
And they did it in the most competitive mining conditions in the history of Bitcoin.
At the time, the difficulty of Bitcoin was encoded as Nbits: 0x1b38a1b5. This chain defines the target for minors: the hatching resulting from their block must fall below a certain threshold.
The lower the target, the more difficult the work is. At this level, minors run to find an appropriate hash over more than 126 billions of possibilities.
This is what made this victory so unlikely.
Even if the minor in question temporarily inflated his hashrate to around 259 petahashes per second (pH / s) for a short period, he still had 1 chance in 3,050 to find a valid block in front of someone else on the global network.
In addition, unlike industrial mining farms with massive configurations, this minor was solo, a single machine subjecting hashs via the CKpool solo.
The minor probably praised a massive explosion of computing power for a short period to make it work. It was a calculated bet, increase the hashrate, take a shot and hope to hit gold.
It worked.
Did you know? Solo CKPOOL, the platform used in this $ 330,000 victory, has recorded less than 100 solo block victories in all its history, making everyone a statistical anomaly in a group of grouped mining.
$ 330K Bitcoin solo mining 101
What is bitcoin extraction?
Bitcoin exploitation is the process of verifying transactions and adding them to the blockchain.
The minors bring together transactions in a block, then several times the block header, modifying a small “nuncio” value until the Double Hash SHA-256 results fall below the target of the network.
This hash target is that the NBITS and the difficulty code. The first minor to discover a valid hash gains the reward and sees their block annexed, maintaining the big book and by emitting a new Bitcoin (BTC).
Bitcoin 2025 extraction difficulty explained
Bitcoin aims to produce a block every 10 minutes to balance security, network synchronization and predictable Bitcoin emission.
To maintain this stable rhythm despite the fluctuations in total network calculation power (hashrate), the protocol adjusts the difficulty every 2,016 blocks (approximately every two weeks).
If block times are always faster than 10 minutes, the difficulty increases; If it is slower, it decreases.
At the time of the 899,826 block, the difficulty was at a record level. 
Did you know? In Bitcoin Mining, Hashrates is on a quick scale: 1 chopping is a single supposition, a terahash is a Billion, a Petahash is a quadrillion and an exam is a quintillion. Today, the Bitcoin network deals with more than 600 exams each second; It is 600 quintillion assumptions per second to find the following block.
How a solo minor extracted the block 899826
A solo minor using rented hastened has temporarily increased to 259 pH / s and successfully extracted Bitcoin Block 899 826 on June 5, 2025, earning more than $ 330,000 during a rare victory entirely or nothing.
Block 899 826 at a glance
- Confirmed: June 5, 2025, at 03:48 UTC;
- Included transactions: 3,680;
- Total reward: 3.125 BTC (basic subsidy) ~ 0.026 BTC (costs) = ~ 3.151 BTC;
- USD value at the time of confirmation: About $ 330,386.
This block was extracted by a single participant via Solo CK (CKPOOL), a platform that allows individual minors to try to find an entire block alone, without sharing rewards with others.
According to the administrator of CKPOOL Con Kolivas, only one worker was active at the time, strongly suggesting that it was not a permanent mining operation but a temporary configuration.
Hashpower praised Bitcoin: a tactical hash
The minor obtained a maximum hashrate of approximately 259 pethashes per second (pH / s), an unusually high figure for a minor solo.
This capacity was probably not internal equipment, but coming from the rented hash power of a cloud mining supplier.
Kolivas has described the strategy as an approach to “taking a catch”: temporarily increasing computer power just long enough to increase the probability of winning a block before returning to basic activity.
This type of short -term burst is an increasing tactic in independent minors. Cloud mining markets allow users to rent Hashrate on demand, which can be directed to pools like CKPool for solo attempts.
Bitcoin profit in solo mosses vs pooling
Unlike mining pools, where participants contribute to their hashrate and receive a proportional part of each reward, solo exploitation is all or nothing.
If a solo minor finds a block, he keeps 100% of the award. If they don’t, they don’t win anything. It is a higher risk approach (especially during rental capacity), but the potential gain is much greater.
In this case, the strategy has succeeded. By combining a targeted calendar, a rented infrastructure and a solo reward model, the minor transformed a close statistical opportunity into a successful block confirmation of a value of six figures.
Ckpool mining success: why it’s important now
When the 899 826 block was resolved, the mining difficulty of Bitcoin was at a record level. This is what makes this case, and others like it, so notable.
It was not the only solo success in 2025. Similar victories took place on February 10 and April 10, each time with block rewards above $ 300,000.
Although rare, these events suggest a scheme: solo extraction remains possible, especially when it is supported by short -term gusts of rented hash power.
The implications extend beyond the titles:
- For small -scale minors, these examples demonstrate that temporary access to high -performance infrastructure can offer a viable path to block the awards (although it requires capital, calendar and technical coordination).
- For mining pools, the strategy can introduce a hybrid approach where minors change between regular grouped rewards and occasional solo attempts when the conditions align.
- For cloud mining services, the trend indicates the growing demand for users who are looking for high -capacity -to -demand rentals targeting short -term solo strategies.
While large -scale operations always dominate the network, strategic solo games are resulting from space, proving that even in record difficulty, individual actors can always have an impact.
What solo Bitcoin Miner victories tell you about Bitcoin exploitation
Events like this highlight the growing adaptability of Bitcoin exploration.
While the growing difficulty suggests a matured and highly secure network, the continuous viability of solo exploitation shows how new rehapent tools and tactics that can participate.
Platforms like Solo CKPool, formerly considered as a niche lottery game, are now taking victories in rare but significant blocks.
At the same time, Cloud -based hash markets allow minors without extended infrastructure to engage in targeted and short -term strategies that can produce excessive yields.
The question of whether these solo victories will become more common remain uncertain. They count on a mixture of calendar, access to capital and technical execution difficult to reproduce. However, their existence is notable, offering a counterpoint to the story that mining is only accessible to industrial actors.
In the situation as a whole, which was once a question of gross computing power also becomes a question of strategy, flexibility and access to infrastructure.
The chances are long, but this case shows that they are not zero. This alone will keep others trying.
