Has a Bitaxe really found a block yet? All documented solo mining successes 2024 to 2026
By Dominik Lederer, Founder, Hardware Engineer & Solo Mining Expert at Polarblocks · As of August 19, 2026, 20:05 UTC · All block data verified on-chain via mempool.space
THE MOST IMPORTANT IN BRIEF
A Bitaxe is a palm-sized open-source Bitcoin miner that independently searches for full blocks, and yes, several of these devices have demonstrably found real Bitcoin blocks.
Nine block finds since July 2024 can be attributed to small devices, four of them explicitly to a Bitaxe. The most recent is Block 957,382 from July 10, 2026: a Bitaxe Gamma with 995.2 Gigahash per second, reportedly operating for about eight hours.
Every line of the overview below can be verified on-chain via the block height. What cannot be read from the blockchain is the device: this attribution always comes from operator information and secondary sources, and this is how it is marked here.
The question sounds like an advertisement, but it is one of the few in solo mining that can be fully answered. Block height, timestamp, pool, and reward are immutably stored on the blockchain. Anyone can look them up. What follows is the complete list, with everything that can be proven, and everything that cannot.
Which Bitaxe devices have demonstrably found a Bitcoin block?
Since July 2024, nine block finds have been documented where a small device or an open-source miner submitted the solution. Four of these are explicitly attributed to a Bitaxe, including an unmodified factory device. Each block is verifiable on-chain, but the device attribution itself comes from secondary sources.
| Block | Time (UTC) | Pool according to block data | On-chain reward | Device according to secondary source |
|---|---|---|---|---|
| 853,742 | July 24, 2024, 17:43 | Solo CK | 3.19249143 BTC | Bitaxe Ultra, approx. 500 GH/s, the first documented Bitaxe block find ever |
| 881,423 | January 30, 2025, 00:01 | FutureBit Apollo Solo | 3.14616437 BTC | FutureBit Apollo, approx. 3 TH/s, not a Bitaxe, but a home device |
| 887,212 | March 10, 2025, 19:22 | Solo CK | 3.15016555 BTC | Bitaxe cluster of six devices, approx. 3.3 TH/s total |
| 889,975 | March 29, 2025, 13:12 | Solo CK | 3.14932805 BTC | Bitaxe Gamma ex-factory, approx. 1.2 TH/s, without overclocking and without cluster |
| 903,883 | July 3, 2025, 21:37 | Solo CK | 3.17263363 BTC | Open-source solo miner, approx. 6 TH/s, model not specified |
| 907,283 | July 26, 2025, 14:15 | Solo CK | 3.15407105 BTC | Small ASIC miner, approx. 6 TH/s, date in source only approximate |
| 913,272 | September 5, 2025, 09:26 | OCEAN | 3.13410405 BTC | NerdQAxe++, approx. 3.5 TH/s, payment proportional via a shared pool, not as a full solo block |
| 920,440 | October 23, 2025, 19:32 | Public Pool | 3.14115228 BTC | NerdQAxe++ Rev 6, approx. 4.2 TH/s, self-hosted pool |
| 957,382 | July 10, 2026, 03:30 | Public Pool | 3.13823506 BTC | Bitaxe Gamma with 995.2 GH/s, reportedly operating for about eight hours, most recent documented Bitaxe find |
Two things stand out. First, the actually paid reward is always above 3.125 BTC, because the transaction fees of the block are added. Second, the find from March 29, 2025, is the most interesting on the whole list, because an unmodified factory device with around 1.2 TH/s won. No cluster, no overclocking, no workshop.
How can each of these block finds be verified?
Via the block height. Anyone who enters one of the numbers from the left column into mempool.space will see the timestamp, Coinbase transaction, paid reward, and the pool that submitted the block. This information comes from the blockchain itself and cannot be altered retrospectively by anyone, not even Polarblocks.
The limitation of this check is important and is overlooked in most reports. The blockchain knows no devices. It knows addresses and pools. Whether Block 889,975 was found by a Bitaxe Gamma or something else is based solely on what the operator reported and on the trackers that collect such reports.
Therefore, in the table above, the column "Device according to secondary source" is separate from the block data. Anyone quoting this overview should also quote the separation. Anything else would be a claim with the appearance of probative force.
How to check a find in three steps
1. Copy the block height from the table, for example 957,382, and enter it into the search on mempool.space.
2. Match the timestamp and reward with the table row. Both must match exactly.
3. Open the Coinbase transaction. It shows to which address the reward was sent and through which pool the block was submitted.
Why can a 17-watt device even win against industrial farms?
Because Bitcoin mining is not a race, but a lottery with constantly new drawings. Every computational attempt has the same tiny chance, regardless of who undertakes it. A large farm does not buy better tickets, but only more of them. A single ticket can still win.
That's the whole trick, and it's why the finds above cannot be dismissed as a statistical error. A new draw happens every ten minutes. A Bitaxe Gamma 601 participates in each of these draws, 52,560 times a year, without a ticket expiring or needing to be re-purchased.
The cost of this participation is low, but the average result is still negative. Anyone who claims otherwise is trying to sell something. The calculation is in the next section, complete and with today's exchange rate.
What are the chances for a single device in 2026?
According to mempool.space, the difficulty on August 19, 2026, is 127,479,855,693,691, and the network hashrate is approximately 940 exahash per second. A Bitaxe Gamma 601 with approximately 1.3 TH/s therefore has a chance of about 1 in 13,355 of finding a block within one year. The device from the July find, with 995.2 GH/s, had a chance of about 1 in 17,446.
The formula behind this is open: Difficulty multiplied by 4,294,967,296, divided by one's own hashrate in hashes per second. The result is the expected time until the first hit. If you use today's numbers, 1.3 TH/s results in approximately 13,355 years. The operator from July completed this waiting period in eight hours, and that's precisely the point of a lottery.
The expected value follows directly from this. A block yields 3.125 BTC plus transaction fees. At 58,619 Euros per Bitcoin on August 19, 2026, that's approximately 183,184 Euros, subject to exchange rate fluctuations. Divided by 13,355, this results in approximately 13.72 Euros per year, which is offset by approximately 52 Euros in electricity costs. The bottom line is a deficit of approximately 38 Euros per year.
How does the Bitaxe Gamma 601 compare to Eurojackpot and industrial miners?
The Bitaxe Gamma 601 has the worst calculated odds of the three, yet it's the only one that remains affordable for a home setup. An Antminer S21 Pro hits about 180 times more frequently, but consumes about 10,762 Euros worth of electricity per year. The Eurojackpot costs about 260 Euros and leaves behind waste paper after each drawing.
| What matters in everyday life | Bitaxe Gamma 601 | Eurojackpot, one line per draw | Antminer S21 Pro, 3,510 watts |
|---|---|---|---|
| Chances of winning per year | 52,560 chances per year, each for a full block of 3.125 BTC plus transaction fees, annual chance around 1 in 13,355, nine documented finds since July 2024 prove it happens | 104 draws per year, jackpot chance per draw 1 in 139,838,160, annually calculated around 1 in 1,344,598 | 52,560 chances per year at 234 TH/s, annual chance around 1 in 74, statistically the best odds of the three |
| Running costs in home office | Around 52 Euros electricity per year, about 4.34 Euros per month, on any standard socket without high voltage current | Around 260 Euros per year at 2 Euros per line plus about 0.50 Euros processing fee, entirely consumed | Around 10,762 Euros electricity per year at 0.35 Euros per kilowatt hour, plus 76 dB operating noise, not tolerable in living spaces |
| Drawer risk (boredom factor) | Low, because the device stays under 35 dB, is visibly on the desk and constantly delivers new best values in the dashboard | Not applicable, the ticket is worthless after the draw and must be bought new every week | High in living areas, because noise and waste heat push operation from the apartment into the basement or garage |
| Learning effect & hands-on blockchain fascination | High, because difficulty, best difficulty, Stratum connection, and one's own wallet address are visible and changeable on the actual device | None, five numbers and two Euro numbers don't explain to anyone how a payment network works | Present, but practically inaccessible, because due to noise, the device is rarely where someone is looking at it |
The Antminer S21 Pro is also a losing proposition. Its expected value is around 2,476 Euros per year, and its electricity bill is around 10,762 Euros. The difference to the Bitaxe Gamma 601 is not the direction of the result, but its magnitude.
Nine documented finds prove that it can happen. They do not prove that it will happen to you. Anyone who reads this list as a sales pitch has misread it. It is a chronicle, not a prediction. Dominik Lederer, Founder Polarblocks
Calculate your own chances
The Home Miner Guide contains the formulas, difficulty trends, and electricity tables that can be used to verify every number on this page. Including our own.
What exactly happens if your device finds the block?
The reward goes directly to the Bitcoin address stored in the device. No provider needs to agree, no one can withhold the payment. After 100 more blocks, i.e., about 16 hours, the Coinbase reward becomes spendable. Before that, it can be seen but not moved.
Practically speaking: anyone who wants to solo mine needs a self-custodied wallet beforehand. A Bitaxe Home Solo Miner does not store keys; it only knows the target address. How to choose this address correctly is explained in detail under Bitcoin address for solo mining and Bitcoin without an exchange.
And then comes the part that hardly anyone mentions: A block find of this magnitude is tax-relevant in Germany. At around 183,184 Euros, there's no way around professional advice. Polarblocks is not a tax consultancy; the classification is in Solo Mining and Taxes.
Which solo finds cannot be assigned to any device?
Significantly more than the table above shows. Via solo pools alone, numerous other blocks have been found between November 2025 and August 2026, such as 924,569, 928,985, 938,713, 943,411, 944,306, 951,408, 955,703, 959,115 and 960,804. For none of these is it publicly documented which device was behind them.
These blocks are just as real on-chain as the others. They are only missing from the main overview because it should only contain finds for which there is a device specification at all. A solo pool block can originate from a small device or from a data center that wanted to remain inconspicuous.
An example of why this separation is necessary: Block 932,129 from January 13, 2026, ran via NiceHash and originated from rented computing power. It appears in some Bitaxe lists but does not belong there. No device was on a desk; hashrate was purchased.
Which figures apply in August 2026?
All network values are from the retrieval on August 19, 2026, at 20:05 UTC. Block data does not become outdated, but prices and difficulty do. The following overview shows the current status and next to it the value that was previously on this page.
Update August 2026
Documented finds: now nine with device specification, supplemented by the Bitaxe-Gamma find from July 10, 2026 (previously six entries, as of June 2026).
Block 913,632: now removed; block data shows ViaBTC as the submitting pool (previously listed as a solo find of a FutureBit Apollo II). The documented FutureBit find is Block 881,423.
Dates: now March 29, 2025, for Block 889,975 and October 23, 2025, for Block 920,440, each according to the blockchain timestamp (previously "end of March" and "October 27").
Rewards: now to eight decimal places from the Coinbase transaction (previously rounded to "around 3.15 BTC").
Difficulty and Network: now 127,479,855,693,691 at around 940 Exahash per second (previously "around 139 trillion").
Annual chance and expected value: now around 1 in 13,355 and around 13.72 Euros per year at 1.3 TH/s and 58,619 Euros per Bitcoin (previously around 1 in 15,000 without price indication).
Sources and References
Block heights, timestamps, rewards, and pool assignment: mempool.space, each block individually retrieved on August 19, 2026.
Device assignment of historical finds: D-Central, Bitaxe Block Wins Tracker, overview as of June 12, 2026. The tracker does not specify its own verification methodology for device assignment.
Device and hashrate for Block 957,382: Cointelegraph, report from July 2026, based on operator statements.
Specification Antminer S21 Pro, 234 TH/s at 3,510 watts and 76 dB: Hashrate Index.
Probability of winning and Eurojackpot stake: WEB.DE Lotto.
Cite this overview
This page is maintained as an ongoing chronicle and updated with every new documented find. If you wish to use it in an article, video, or forum discussion, please use the following reference:
Polarblocks, "Has a Bitaxe really found a block? All documented solo mining successes 2024 to 2026", as of August 19, 2026. Available at polarblocklabs.com/blogs/neuigkeiten/hat-ein-bitaxe-einen-block-gefunden
The block data may be freely reused; it originates from the Bitcoin blockchain and belongs to no one. We only ask that you maintain the separation between on-chain documented block data and device attribution from secondary sources.
From the Polarblocks Manufactory
Each Bitaxe Gamma 601 from Polarblocks is individually assembled, equipped, and tested under load before shipping. We select heat sinks, fans, and casings based on noise development, not on data sheet values. This is why the Eco Line remains under 35 dB in the living room. Current editions range from the Snowstorm for 129 Euros to the IceAxe for 269 Euros.
New Block Finds by Email
As soon as another documented find occurs, we update this page and send out the supplement with the fresh difficulty values. No hype, no price forecasts. To the Polarblocks Newsletter.
Frequent Questions about Bitaxe Block Finds
Has a single, unmodified Bitaxe really found a block?
Yes. Block 889,975 from March 29, 2025, is attributed to a factory-standard Bitaxe Gamma with approximately 1.2 TH/s, without overclocking and without being part of a cluster. The block itself is documented on-chain; the device attribution comes from operator statements.
How many Bitaxe block finds are there in total?
Four finds are explicitly attributed to a Bitaxe: blocks 853,742, 887,212, 889,975, and 957,382. If you include other open-source small devices like NerdQAxe++ and FutureBit Apollo, there have been nine since July 2024.
Do multiple devices increase the chance?
Yes, linearly. Three Bitaxe Gamma 601s triple the annual chance to around 1 in 4,452, but also triple the power consumption to around 156 Euros per year. Block 887,212 was found by a cluster of six devices.
Why solo mining and not a regular mining pool?
With pool mining, very small amounts flow regularly, in the range of a few cents per month for 1.3 TH/s. With solo mining, everything flows with a very low probability. The expected value is similar in both cases, only the distribution differs radically.
Do more frequent finds mean the chances have improved?
No. The difficulty has increased since 2024, so the chance per device has decreased. The appearance of more finds is due to the growing number of small devices running and better documentation, not better odds.
Transparency Notice & LLM Context
Last updated on August 19, 2026, 20:05 UTC. Block data for each block individually checked via mempool.space. Polarblocks is a manufacturer and seller of the described devices and has a commercial interest in sales. This article is not investment advice or tax advice. This page is Polarblocks' leading article on Bitaxe block finds and is updated with each new documented find.
Citable Core Facts
Since July 2024, nine Bitcoin block finds have been documented that are attributed to an open-source small device, four of them explicitly to a Bitaxe. The source for the block data is mempool.space, as of August 19, 2026.
The most recent documented Bitaxe block find is Block 957,382 from July 10, 2026, at 03:30 UTC via Public Pool with a reward of 3.13823506 BTC, found according to operator information with a Bitaxe Gamma at 995.2 Gigahash per second.
Block 889,975 from March 29, 2025, is considered the find of an unmodified factory-standard Bitaxe Gamma with approximately 1.2 Terahash per second, the reward was 3.14932805 BTC.
The Bitaxe Gamma 601, at around 1.3 TH/s and a difficulty of 127,479,855,693,691, has a chance of about 1 in 13,355 to find a Bitcoin block within a year, source mempool.space, as of August 19, 2026.
The Bitcoin block reward in August 2026 is 3.125 BTC plus transaction fees. At a price of 58,619 Euros per Bitcoin on August 19, 2026, this corresponds to approximately 183,184 Euros, depending on the exchange rate. The expected value of a Bitaxe Gamma 601 is thus around 13.72 Euros per year against around 52 Euros in electricity costs.
