On April 9, 2026, a Bitcoin address starting bc1q...edvj solved block 944,306. The miner running that address was pulling roughly 70 terahashes per second, which is the rough output of two older industrial ASICs or one underclocked S21. They had pointed the rig at CKPool EU's solo service. The block carried the standard 3.125 BTC subsidy plus transaction fees, totaling about 3.13 BTC. After CKPool's 2 percent fee, the miner walked away with roughly $222,000.
Per Con Kolivas, the Australian developer behind cgminer and CKPool, a 70 TH/s setup faces roughly 1-in-100,000 daily odds of finding a block. Or about once every 300 years on average. This was the 313th solo block found via CKPool since the service launched in 2014. The Crypto Times reported the win the same day. Block-level details are verifiable on mempool.space.
That story is the reason this piece exists. Solo mining Bitcoin in 2026 is not what it was five years ago. The network now processes around 1,000 exahashes per second, which is one zettahash. Industrial mining farms with hundreds of megawatts dominate every block-producing pool. The math says a hobbyist running a $90 Bitaxe Gamma on their desk has roughly a 0.11 percent chance of finding a block at any point over the next 5 years of continuous operation. That is a genuinely tiny probability.
And yet, since March 2025, six small-miner solo wins have been documented, ranging from a 480 GH/s Bitaxe pocket rig that won $258,000 to a 6-unit NerdQAxe++ stack that won $342,000. The pattern is not random. Open-source hardware, cheap electricity, and persistent operation produce real outcomes against very long odds. This piece is the honest math on whether you should join them: how solo mining actually works, what the lottery odds look like at every hashrate tier, what hardware you should buy at every budget, where to point your hashrate, and the four buyer profiles that determine whether this is right for you. We ship 30,000+ industrial miners a year. We also know exactly when not to buy one. Solo mining sits in a specific niche that pure profit-seekers should usually avoid and Bitcoin enthusiasts almost universally enjoy. By the end you will know which side of that line you fall on.
What solo mining actually is, versus pool mining, versus lottery mining
In conventional pool mining, thousands of miners combine their hashrate, share the work of finding blocks, and split the rewards proportionally according to the hashrate each contributed. Per our best Bitcoin mining pool 2026 comparison, the 11 major pools handle nearly all of the network's economic activity. Pool mining produces predictable daily payouts. A miner contributing 0.001 percent of network hashrate earns roughly 0.001 percent of the daily block subsidy plus transaction fees, paid out daily. The variance is low. The expected value tracks the underlying network economics directly.
Solo mining is structurally different. The miner connects directly to a solo coordination service (or runs their own Bitcoin node and pool) and competes independently to find blocks. If they find one, they keep the entire 3.125 BTC reward minus any service fee (typically 0 to 2 percent). If they do not find one, they earn nothing. There is no proportional payout, no daily settlement, no smoothing. It is binary. A solo miner is participating in a hash-weighted lottery where the cost per ticket equals their daily electricity bill and the prize is a full block reward.
Lottery mining is a colloquial term for solo mining at small scale. The phrase captures the actual decision math better than the formal terminology. A hobbyist running a single Bitaxe Gamma at 1.2 TH/s is buying about $0.05 of lottery tickets per day at typical residential electricity rates. They are not "expecting" to find a block in any reasonable timeframe. They are paying a small recurring cost for a real (if extremely small) probability of an asymmetric upside. The framing matters because it sets correct expectations. Pool mining is income. Solo mining at small scale is structured speculation with educational and decentralization side benefits.
Three solo coordination services handle most modern hobbyist activity. Solo CKPool (eusolo.ckpool.org or solo.ckpool.org) charges 2 percent and has produced 313 confirmed solo blocks since 2014. Public Pool is a fully open-source self-hostable alternative that runs on Umbrel home servers. Ocean uses Stratum V2 for sovereign block construction and offers solo mining as an option. All three settle full block rewards directly to the miner's own Bitcoin address.
The lottery math: real odds at every hashrate tier
Per Con Kolivas, the Australian developer behind cgminer and CKPool, a 70 TH/s setup faces roughly 1-in-100,000 daily odds of finding a block. Or about once every 300 years on average. This was the 313th solo block found via CKPool since the service launched in 2014. The Crypto Times reported the win the same day. Block-level details are verifiable on mempool.space.
That story is the reason this piece exists. Solo mining Bitcoin in 2026 is not what it was five years ago. The network now processes around 1,000 exahashes per second, which is one zettahash. Industrial mining farms with hundreds of megawatts dominate every block-producing pool. The math says a hobbyist running a $90 Bitaxe Gamma on their desk has roughly a 0.11 percent chance of finding a block at any point over the next 5 years of continuous operation. That is a genuinely tiny probability.
And yet, since March 2025, six small-miner solo wins have been documented, ranging from a 480 GH/s Bitaxe pocket rig that won $258,000 to a 6-unit NerdQAxe++ stack that won $342,000. The pattern is not random. Open-source hardware, cheap electricity, and persistent operation produce real outcomes against very long odds. This piece is the honest math on whether you should join them: how solo mining actually works, what the lottery odds look like at every hashrate tier, what hardware you should buy at every budget, where to point your hashrate, and the four buyer profiles that determine whether this is right for you. We ship 30,000+ industrial miners a year. We also know exactly when not to buy one. Solo mining sits in a specific niche that pure profit-seekers should usually avoid and Bitcoin enthusiasts almost universally enjoy. By the end you will know which side of that line you fall on.
What solo mining actually is, versus pool mining, versus lottery mining
In conventional pool mining, thousands of miners combine their hashrate, share the work of finding blocks, and split the rewards proportionally according to the hashrate each contributed. Per our best Bitcoin mining pool 2026 comparison, the 11 major pools handle nearly all of the network's economic activity. Pool mining produces predictable daily payouts. A miner contributing 0.001 percent of network hashrate earns roughly 0.001 percent of the daily block subsidy plus transaction fees, paid out daily. The variance is low. The expected value tracks the underlying network economics directly.
Solo mining is structurally different. The miner connects directly to a solo coordination service (or runs their own Bitcoin node and pool) and competes independently to find blocks. If they find one, they keep the entire 3.125 BTC reward minus any service fee (typically 0 to 2 percent). If they do not find one, they earn nothing. There is no proportional payout, no daily settlement, no smoothing. It is binary. A solo miner is participating in a hash-weighted lottery where the cost per ticket equals their daily electricity bill and the prize is a full block reward.
Lottery mining is a colloquial term for solo mining at small scale. The phrase captures the actual decision math better than the formal terminology. A hobbyist running a single Bitaxe Gamma at 1.2 TH/s is buying about $0.05 of lottery tickets per day at typical residential electricity rates. They are not "expecting" to find a block in any reasonable timeframe. They are paying a small recurring cost for a real (if extremely small) probability of an asymmetric upside. The framing matters because it sets correct expectations. Pool mining is income. Solo mining at small scale is structured speculation with educational and decentralization side benefits.
Three solo coordination services handle most modern hobbyist activity. Solo CKPool (eusolo.ckpool.org or solo.ckpool.org) charges 2 percent and has produced 313 confirmed solo blocks since 2014. Public Pool is a fully open-source self-hostable alternative that runs on Umbrel home servers. Ocean uses Stratum V2 for sovereign block construction and offers solo mining as an option. All three settle full block rewards directly to the miner's own Bitcoin address.
The lottery math: real odds at every hashrate tier
Solo mining odds at any moment equal your hashrate divided by total network hashrate. At a network total of approximately 1,000 EH/s (one zettahash) per minerstat as of May 2026, a 1.2 TH/s Bitaxe Gamma represents 0.00000012 percent of the network. The expected number of blocks that miner would find per day is 144 (blocks mined per day at the network level) multiplied by their share of hashrate, which equals roughly 0.0000017 blocks per day. Inverted, that is 1 in 1.6 million daily odds.
Annualized, the same math gives roughly a 0.022 percent chance of finding at least one block in any given year. Over 5 years of continuous operation, the cumulative probability climbs to approximately 0.11 percent. Stack 5 Bitaxe Gammas in parallel and the 5-year probability climbs to 0.55 percent. A NerdQAxe++ at 4.8 TH/s comes in at roughly 0.45 percent over 5 years. An Antminer S21 at 200 TH/s reaches 17 percent over 5 years. An S21 XP Hydro at 473 TH/s reaches 36 percent over 5 years. The probability scales linearly with hashrate, which is the only honest way to summarize the math.
Six documented small-miner wins between March 2025 and April 2026 anchor the odds in real outcomes. On March 10, 2025, a 480 GH/s Bitaxe pocket rig solved block 887,212 for 3.15 BTC ($258,000 at the time). On March 21, 2025, a basement rig combining an Apollo BTC, Apollo Standard, Apollo II, and Bitmain S19K Pro at roughly 115 TH/s solved block 888,737 for 3.16 BTC ($265,000). On August 17, 2025, a 9 PH/s industrial single-rig solo setup found block 910,440 for 3.137 BTC ($285,000). On October 27, 2025, a Solo Satoshi customer running 6 NerdQAxe++ Rev 6 units found block 920,440 for 3.15 BTC ($342,000). On November 21, 2025, a Bitaxe Gamma swarm at 5.4 TH/s solved block 924,569 for 3.08 BTC ($266,000). And on April 9, 2026, the 70 TH/s hobbyist won the 313th CKPool solo block at 944,306 for 3.13 BTC ($222,000).
What the wins demonstrate: outliers happen. Variance is the entire point. The lottery math says a Bitaxe Gamma will find a block roughly once every 4,500 years on average; the actual outcome on any given day is either 0 or 1. The November 21, 2025 5.4 TH/s win came against approximately 1-in-180-million odds at that hashrate. The win was an outlier. It was also real, on-chain, and paid out. Per Con Kolivas after the November win: "a miner of this size has only a 1 in 180 million chance of solving a block each day." It happened anyway. The base rate is what it is. Variance does the rest.
The right way to think about this if you are buying hardware: the daily odds are the actual base rate of return. Do not anchor on stories of wins. Anchor on the fact that running a Bitaxe Gamma for 5 years gives you about a 0.11 percent probability of a $200,000+ payoff against a total hardware and electricity cost of perhaps $200. That is the asymmetric payoff structure. It is the only honest framing.
The open-source hardware ecosystem: Bitaxe, NerdAxe, Apollo, Avalon Nano
Annualized, the same math gives roughly a 0.022 percent chance of finding at least one block in any given year. Over 5 years of continuous operation, the cumulative probability climbs to approximately 0.11 percent. Stack 5 Bitaxe Gammas in parallel and the 5-year probability climbs to 0.55 percent. A NerdQAxe++ at 4.8 TH/s comes in at roughly 0.45 percent over 5 years. An Antminer S21 at 200 TH/s reaches 17 percent over 5 years. An S21 XP Hydro at 473 TH/s reaches 36 percent over 5 years. The probability scales linearly with hashrate, which is the only honest way to summarize the math.
Six documented small-miner wins between March 2025 and April 2026 anchor the odds in real outcomes. On March 10, 2025, a 480 GH/s Bitaxe pocket rig solved block 887,212 for 3.15 BTC ($258,000 at the time). On March 21, 2025, a basement rig combining an Apollo BTC, Apollo Standard, Apollo II, and Bitmain S19K Pro at roughly 115 TH/s solved block 888,737 for 3.16 BTC ($265,000). On August 17, 2025, a 9 PH/s industrial single-rig solo setup found block 910,440 for 3.137 BTC ($285,000). On October 27, 2025, a Solo Satoshi customer running 6 NerdQAxe++ Rev 6 units found block 920,440 for 3.15 BTC ($342,000). On November 21, 2025, a Bitaxe Gamma swarm at 5.4 TH/s solved block 924,569 for 3.08 BTC ($266,000). And on April 9, 2026, the 70 TH/s hobbyist won the 313th CKPool solo block at 944,306 for 3.13 BTC ($222,000).
What the wins demonstrate: outliers happen. Variance is the entire point. The lottery math says a Bitaxe Gamma will find a block roughly once every 4,500 years on average; the actual outcome on any given day is either 0 or 1. The November 21, 2025 5.4 TH/s win came against approximately 1-in-180-million odds at that hashrate. The win was an outlier. It was also real, on-chain, and paid out. Per Con Kolivas after the November win: "a miner of this size has only a 1 in 180 million chance of solving a block each day." It happened anyway. The base rate is what it is. Variance does the rest.
The right way to think about this if you are buying hardware: the daily odds are the actual base rate of return. Do not anchor on stories of wins. Anchor on the fact that running a Bitaxe Gamma for 5 years gives you about a 0.11 percent probability of a $200,000+ payoff against a total hardware and electricity cost of perhaps $200. That is the asymmetric payoff structure. It is the only honest framing.
The open-source hardware ecosystem: Bitaxe, NerdAxe, Apollo, Avalon Nano
Almost every device worth considering for hobbyist solo mining in 2026 is built around the Bitmain BM1370 ASIC chip, which is the same 5-nanometer silicon that ships in industrial Antminer S21 Pro units. The chip delivers approximately 15 J/TH efficiency at stock settings, which matches the most efficient industrial machines. What changes between products is how many BM1370 chips sit on the board, how the cooling is engineered, what voltage and frequency the firmware allows, and what the user experience looks like (browser dashboard, on-device LCD, fan profile, noise level).
Per the Bitaxe.org project documentation, all hardware schematics, PCB layouts, and firmware are publicly available under permissive open-source licenses. The ESP-Miner firmware codebase has accumulated 1,180+ commits and 841+ stars on GitHub as of March 2026. AxeOS, the browser-based dashboard that ships on every Bitaxe and most NerdAxe variants, lets operators configure pools, adjust voltage and frequency, monitor share statistics, and update firmware without command-line tools. The OSMU (Open Source Miners United) community maintains the hardware reference designs and accepts community contributions.
Bitaxe Gamma: the BM1370 chip on a desk
The Bitaxe Gamma 602 is the entry-level model and the most-shipped open-source solo miner in 2026. Per Solo Satoshi's product documentation, the Gamma 602 delivers 1.2 TH/s of SHA-256 hashrate at 17 watts of power, achieving 15 J/TH efficiency that matches the industrial S21 Pro. Pricing as of May 2026 is $105 fully assembled and tested, ships same-day from Houston, Texas. The unit is palm-sized at 15 x 10 x 5 cm, weighs 340 grams, runs on 5V USB-C power, connects via 2.4 GHz WiFi, and is managed through AxeOS in any browser at the device's local IP address.
Per Solo Satoshi co-founder Matt Howard, speaking after the October 2025 NerdQAxe++ block win by one of his customers: "every block win we document proves that Bitcoin mining is not just for warehouses full of industrial ASICs. A single person running open-source hardware from their desk can earn a life-changing reward." That framing is the explicit value proposition. The Gamma is not competing with the S21 on industrial economics. It is competing with no-action on the dimension of "do you want a real participation share in the Bitcoin network for $105."
Three Bitaxe variants build on the Gamma 602 platform. The Bitaxe Touch Turbo at approximately $160 adds a touchscreen that cycles hashrate, BTC price, and network difficulty without opening a browser. The Bitaxe Duo 650 at $155 puts dual BM1370 chips on a single board for 1.78 TH/s at ~28W, which is 48 percent more hashrate than a Gamma 602 in roughly the same form factor. The Bitaxe GT 801 at approximately $210 is the high-performance enthusiast variant: dual BM1370 chips, 12.4V XT30 power input, premium heatsink with 60mm fan, and aggressive overclock potential to 3.0+ TH/s. Per AxeOS overclocking documentation, common stable Gamma overclock settings include 700 MHz at 1200 mV for moderate gains or 850 MHz at 1300 mV for aggressive performance, with ASIC temperatures kept below 65°C and voltage regulator temps below 80°C for stable 24/7 operation.
Gamma versus Touch versus Duo versus GT comes down to how much you want to tinker. Beginners and gift-givers should buy the Gamma 602: cheapest, smallest, most documented. Operators who want a desk dashboard should buy the Touch. Operators who want maximum hashrate per square inch should buy the Duo. Enthusiasts who plan to overclock and optimize should buy the GT. All four use the same chip and produce the same fundamental lottery odds per terahash. The choice is form factor, user experience, and overclock headroom.
NerdQAxe++ and the multi-chip path to 5+ TH/s
The NerdAxe family evolved out of the NerdMiner community, which started solo mining on ESP32 microcontrollers producing kilohertz-range hashrate purely as an educational and participation exercise. When the platform added real BM1370 ASICs, it brought legitimate industrial-grade hashrate to a maker-DNA platform. The NerdQAxe++ Rev 6 is the high-end variant: four BM1370 chips, 4.8 TH/s combined hashrate, 76W power draw, ~16 J/TH efficiency, ~52 dB noise, priced around $400.
The NerdQAxe++ is also the device that won the October 27, 2025 block at $342,000. Per Solo Satoshi's public reporting, a customer running six NerdQAxe++ Rev 6 units found block 920,440 for 3.15 BTC. Six units at 4.8 TH/s each is roughly 28.8 TH/s total, which produces daily odds of approximately 1 in 65,000. Annualized that is about 0.55 percent. Over 5 years it climbs to 2.75 percent. The customer was three years into operation when the win happened. The variance worked in their favor. Most operators at that scale will not have the same outcome over the same timeframe.
Multi-chip stacks like the NerdQAxe++ are the right choice for the lottery hopeful profile (someone willing to spend $1,000-$2,000 on hardware to genuinely play the lottery rather than just participate in network security at the smallest level). A 5-unit NerdQAxe++ stack runs at 24 TH/s, draws 380W, costs roughly $2,000 in hardware plus negligible electricity at any reasonable rate, and produces 5-year odds of roughly 2.2 percent of finding at least one block. Those are still very long odds, but they are 20x better than running a single Bitaxe Gamma. The hardware cost recovers in about 18 months on pooled mining if the operator decides to switch strategies. Until then it is a recurring lottery ticket.
Apollo and Avalon Nano: the consumer alternatives
Two consumer alternatives sit alongside the Bitaxe and NerdAxe ecosystem with closed-source firmware but better noise profiles and integrated features. The FutureBit Apollo II at approximately $700 produces 3.8 TH/s at ~200W, achieving roughly 52 J/TH efficiency. The efficiency is significantly worse than open-source devices using the BM1370 chip directly, but the Apollo runs at approximately 25 dB noise (whisper-quiet, comparable to a quiet library) and includes a built-in full Bitcoin node. The combination of integrated node plus quiet operation makes the Apollo II appealing to operators who want a complete bedroom or living room solo mining stack without separately running an Umbrel server.
The Canaan Avalon Nano 3 at approximately $400 produces 3.6 TH/s at 140W, achieving ~39 J/TH efficiency. The unit ships with a living-room-friendly form factor, runs at ~30 dB noise, and accepts 100-240V universal input. Canaan launched the Avalon Nano series at CES 2025 with explicit consumer-market positioning. The firmware is closed-source, which is a meaningful tradeoff for operators who value the open-source audit trail of Bitaxe and NerdAxe. Operationally the Nano 3 produces roughly 3x the hashrate of a Bitaxe Gamma at roughly 4x the price, which is approximately the same hashrate-per-dollar ratio. The advantages are noise, form factor, and warranty (Canaan provides direct manufacturer support; the open-source devices typically rely on the reseller).
When to buy consumer instead of open-source: bedroom or living room placement where 50+ dB Bitaxe or NerdAxe noise is unacceptable; gift recipients who will not maintain firmware or troubleshoot; and operators who explicitly want manufacturer warranty rather than community support. When to buy open-source instead of consumer: hashrate-per-dollar matters more than noise; you want to verify and modify the firmware; you want to participate in the OSMU community; and you want best-in-class efficiency at the chip level (15 J/TH versus 39-52 J/TH).
Where to point your hashrate: CKPool, Public Pool, Ocean, Umbrel self-hosted
Once you have hardware, you need to point it at a solo coordination service. Four real options exist for hobbyist solo mining in 2026, each with different tradeoffs on fees, decentralization, technical complexity, and reliability.
Solo CKPool is the canonical solo mining service, launched in 2014 by Con Kolivas (the developer of cgminer and CKPool). The service charges 2 percent of any block reward as fee. It is anonymous (no account, no KYC, no signup), uses your Bitcoin address as your worker identity, and pays out the block reward directly to that address when you find a block. The service has produced 313 documented solo blocks since launch. Stratum URL is solo.ckpool.org or eusolo.ckpool.org for European users. The right default for most hobbyist solo miners.
Public Pool is a fully open-source, permissionless solo mining pool that can be self-hosted on Umbrel or run via the public-pool.io instance. Self-hosting eliminates third-party trust entirely (you become your own pool operator), removes the 2 percent fee, and gives full control over which transactions you include in blocks. The tradeoff is operational complexity: you need to run a Bitcoin node, configure the pool software, and maintain it. Self-hosted Public Pool is the right choice for sovereignty maximalists and operators who want to run the full stack.
Ocean is the Stratum V2 pool from the team behind Mempool.space. Ocean primarily targets pooled miners but also offers solo mining as an option. Ocean uses TIDES + DATUM, which is a sovereign block construction protocol that lets miners pick their own transactions rather than accepting a template from the pool. For operators who care about block construction sovereignty alongside the lottery upside, Ocean is the right choice. Our best Bitcoin mining pool 2026 comparison covers Ocean's decentralization profile in detail.
A fourth option that occasionally comes up is hybrid pools like Parasite Pool. The Parasite model splits any block reward: 1 BTC to the finder, the remaining 2.13 BTC distributed proportionally across all pool participants by hashrate. The hybrid model produces a steady drip of pooled income for everyone plus a guaranteed 1 BTC payoff to whoever finds a block. Parasite Pool found its first solo block on February 28, 2026 at block 938,713 from a sub-10 TH/s miner. The model is interesting for operators who want lottery upside without going zero-income for years between wins, though the guaranteed-1-BTC payoff is meaningfully smaller than the full 3.125 BTC subsidy that pure solo pools deliver.
The four buyer profiles: enthusiast, lottery hopeful, sovereign, profit-seeker
Per the Bitaxe.org project documentation, all hardware schematics, PCB layouts, and firmware are publicly available under permissive open-source licenses. The ESP-Miner firmware codebase has accumulated 1,180+ commits and 841+ stars on GitHub as of March 2026. AxeOS, the browser-based dashboard that ships on every Bitaxe and most NerdAxe variants, lets operators configure pools, adjust voltage and frequency, monitor share statistics, and update firmware without command-line tools. The OSMU (Open Source Miners United) community maintains the hardware reference designs and accepts community contributions.
Bitaxe Gamma: the BM1370 chip on a desk
The Bitaxe Gamma 602 is the entry-level model and the most-shipped open-source solo miner in 2026. Per Solo Satoshi's product documentation, the Gamma 602 delivers 1.2 TH/s of SHA-256 hashrate at 17 watts of power, achieving 15 J/TH efficiency that matches the industrial S21 Pro. Pricing as of May 2026 is $105 fully assembled and tested, ships same-day from Houston, Texas. The unit is palm-sized at 15 x 10 x 5 cm, weighs 340 grams, runs on 5V USB-C power, connects via 2.4 GHz WiFi, and is managed through AxeOS in any browser at the device's local IP address.
Per Solo Satoshi co-founder Matt Howard, speaking after the October 2025 NerdQAxe++ block win by one of his customers: "every block win we document proves that Bitcoin mining is not just for warehouses full of industrial ASICs. A single person running open-source hardware from their desk can earn a life-changing reward." That framing is the explicit value proposition. The Gamma is not competing with the S21 on industrial economics. It is competing with no-action on the dimension of "do you want a real participation share in the Bitcoin network for $105."
Three Bitaxe variants build on the Gamma 602 platform. The Bitaxe Touch Turbo at approximately $160 adds a touchscreen that cycles hashrate, BTC price, and network difficulty without opening a browser. The Bitaxe Duo 650 at $155 puts dual BM1370 chips on a single board for 1.78 TH/s at ~28W, which is 48 percent more hashrate than a Gamma 602 in roughly the same form factor. The Bitaxe GT 801 at approximately $210 is the high-performance enthusiast variant: dual BM1370 chips, 12.4V XT30 power input, premium heatsink with 60mm fan, and aggressive overclock potential to 3.0+ TH/s. Per AxeOS overclocking documentation, common stable Gamma overclock settings include 700 MHz at 1200 mV for moderate gains or 850 MHz at 1300 mV for aggressive performance, with ASIC temperatures kept below 65°C and voltage regulator temps below 80°C for stable 24/7 operation.
Gamma versus Touch versus Duo versus GT comes down to how much you want to tinker. Beginners and gift-givers should buy the Gamma 602: cheapest, smallest, most documented. Operators who want a desk dashboard should buy the Touch. Operators who want maximum hashrate per square inch should buy the Duo. Enthusiasts who plan to overclock and optimize should buy the GT. All four use the same chip and produce the same fundamental lottery odds per terahash. The choice is form factor, user experience, and overclock headroom.
NerdQAxe++ and the multi-chip path to 5+ TH/s
The NerdAxe family evolved out of the NerdMiner community, which started solo mining on ESP32 microcontrollers producing kilohertz-range hashrate purely as an educational and participation exercise. When the platform added real BM1370 ASICs, it brought legitimate industrial-grade hashrate to a maker-DNA platform. The NerdQAxe++ Rev 6 is the high-end variant: four BM1370 chips, 4.8 TH/s combined hashrate, 76W power draw, ~16 J/TH efficiency, ~52 dB noise, priced around $400.
The NerdQAxe++ is also the device that won the October 27, 2025 block at $342,000. Per Solo Satoshi's public reporting, a customer running six NerdQAxe++ Rev 6 units found block 920,440 for 3.15 BTC. Six units at 4.8 TH/s each is roughly 28.8 TH/s total, which produces daily odds of approximately 1 in 65,000. Annualized that is about 0.55 percent. Over 5 years it climbs to 2.75 percent. The customer was three years into operation when the win happened. The variance worked in their favor. Most operators at that scale will not have the same outcome over the same timeframe.
Multi-chip stacks like the NerdQAxe++ are the right choice for the lottery hopeful profile (someone willing to spend $1,000-$2,000 on hardware to genuinely play the lottery rather than just participate in network security at the smallest level). A 5-unit NerdQAxe++ stack runs at 24 TH/s, draws 380W, costs roughly $2,000 in hardware plus negligible electricity at any reasonable rate, and produces 5-year odds of roughly 2.2 percent of finding at least one block. Those are still very long odds, but they are 20x better than running a single Bitaxe Gamma. The hardware cost recovers in about 18 months on pooled mining if the operator decides to switch strategies. Until then it is a recurring lottery ticket.
Apollo and Avalon Nano: the consumer alternatives
Two consumer alternatives sit alongside the Bitaxe and NerdAxe ecosystem with closed-source firmware but better noise profiles and integrated features. The FutureBit Apollo II at approximately $700 produces 3.8 TH/s at ~200W, achieving roughly 52 J/TH efficiency. The efficiency is significantly worse than open-source devices using the BM1370 chip directly, but the Apollo runs at approximately 25 dB noise (whisper-quiet, comparable to a quiet library) and includes a built-in full Bitcoin node. The combination of integrated node plus quiet operation makes the Apollo II appealing to operators who want a complete bedroom or living room solo mining stack without separately running an Umbrel server.
The Canaan Avalon Nano 3 at approximately $400 produces 3.6 TH/s at 140W, achieving ~39 J/TH efficiency. The unit ships with a living-room-friendly form factor, runs at ~30 dB noise, and accepts 100-240V universal input. Canaan launched the Avalon Nano series at CES 2025 with explicit consumer-market positioning. The firmware is closed-source, which is a meaningful tradeoff for operators who value the open-source audit trail of Bitaxe and NerdAxe. Operationally the Nano 3 produces roughly 3x the hashrate of a Bitaxe Gamma at roughly 4x the price, which is approximately the same hashrate-per-dollar ratio. The advantages are noise, form factor, and warranty (Canaan provides direct manufacturer support; the open-source devices typically rely on the reseller).
When to buy consumer instead of open-source: bedroom or living room placement where 50+ dB Bitaxe or NerdAxe noise is unacceptable; gift recipients who will not maintain firmware or troubleshoot; and operators who explicitly want manufacturer warranty rather than community support. When to buy open-source instead of consumer: hashrate-per-dollar matters more than noise; you want to verify and modify the firmware; you want to participate in the OSMU community; and you want best-in-class efficiency at the chip level (15 J/TH versus 39-52 J/TH).
Where to point your hashrate: CKPool, Public Pool, Ocean, Umbrel self-hosted
Once you have hardware, you need to point it at a solo coordination service. Four real options exist for hobbyist solo mining in 2026, each with different tradeoffs on fees, decentralization, technical complexity, and reliability.
Solo CKPool is the canonical solo mining service, launched in 2014 by Con Kolivas (the developer of cgminer and CKPool). The service charges 2 percent of any block reward as fee. It is anonymous (no account, no KYC, no signup), uses your Bitcoin address as your worker identity, and pays out the block reward directly to that address when you find a block. The service has produced 313 documented solo blocks since launch. Stratum URL is solo.ckpool.org or eusolo.ckpool.org for European users. The right default for most hobbyist solo miners.
Public Pool is a fully open-source, permissionless solo mining pool that can be self-hosted on Umbrel or run via the public-pool.io instance. Self-hosting eliminates third-party trust entirely (you become your own pool operator), removes the 2 percent fee, and gives full control over which transactions you include in blocks. The tradeoff is operational complexity: you need to run a Bitcoin node, configure the pool software, and maintain it. Self-hosted Public Pool is the right choice for sovereignty maximalists and operators who want to run the full stack.
Ocean is the Stratum V2 pool from the team behind Mempool.space. Ocean primarily targets pooled miners but also offers solo mining as an option. Ocean uses TIDES + DATUM, which is a sovereign block construction protocol that lets miners pick their own transactions rather than accepting a template from the pool. For operators who care about block construction sovereignty alongside the lottery upside, Ocean is the right choice. Our best Bitcoin mining pool 2026 comparison covers Ocean's decentralization profile in detail.
A fourth option that occasionally comes up is hybrid pools like Parasite Pool. The Parasite model splits any block reward: 1 BTC to the finder, the remaining 2.13 BTC distributed proportionally across all pool participants by hashrate. The hybrid model produces a steady drip of pooled income for everyone plus a guaranteed 1 BTC payoff to whoever finds a block. Parasite Pool found its first solo block on February 28, 2026 at block 938,713 from a sub-10 TH/s miner. The model is interesting for operators who want lottery upside without going zero-income for years between wins, though the guaranteed-1-BTC payoff is meaningfully smaller than the full 3.125 BTC subsidy that pure solo pools deliver.
The four buyer profiles: enthusiast, lottery hopeful, sovereign, profit-seeker
Profile 01 is the Bitcoin enthusiast. Budget: roughly $105. Buy a single Bitaxe Gamma 602 and point it at CKPool or self-hosted Public Pool. Daily electricity cost at typical residential rates is about $0.05. The 5-year probability of finding at least one block is approximately 0.11 percent. Why this works: decentralization participation matters more than EV. The $105 ticket gives the operator a real share of network hashrate, a desk-friendly miner, and the ability to point at the device on a shelf and say with technical accuracy that they actively secure the Bitcoin network. The expectation is not winning. The expectation is participation and education at minimal cost.
Profile 02 is the lottery hopeful. Budget: $1,000-$2,000. Buy a stack of 5 NerdQAxe++ units (approximately 24 TH/s combined) or a swarm of 8-10 Bitaxe Gammas (approximately 10-12 TH/s combined). Point everything at CKPool. Daily electricity cost at typical rates is about $1.10. The 5-year probability climbs to roughly 2.2 percent. Why this works: stacking the hashrate moves the math from "lottery participation" to "lottery played seriously at small scale." Daily odds of approximately 1 in 80,000. Real, but still very long. The hardware cost is recoverable through pool mining if the operator decides to switch strategies; until then it is a structured speculation with educational benefits.
Profile 03 is the sovereign node-runner. Budget: $300-$700. Buy a Bitaxe Gamma plus an Umbrel home server, run a full Bitcoin node, run self-hosted Public Pool on the Umbrel, and point the Bitaxe at the local pool instance. Daily electricity cost across the full stack is about $0.10. The 5-year block-finding probability is the same as Profile 01 (~0.11%). The point of Profile 03 is not the lottery upside; it is the sovereignty stack. Your own node validates every transaction. Your own pool constructs every block (if and when you find one). You pick your own transactions. No third-party trust at any layer. For operators who care about Bitcoin's decentralization properties at the protocol level, Profile 03 is the only configuration that fully delivers.
Profile 04 is the pure profit-seeker. Budget: any. Do not solo mine. Buy a current-generation industrial ASIC (Antminer S21, S21 XP, or S23 Hydro), point it at a low-fee FPPS pool like Foundry USA or F2Pool, and accept predictable daily payouts. Daily revenue at typical pool rates and current network conditions runs $6-$9 per S21. Variance is low. The 5-year cumulative probability of finding a block in a pool context is mathematically irrelevant because you collect proportional payouts regardless. Solo mining is structurally negative-EV at small scale relative to pool mining, even after accounting for the 1-2% pool fee, because variance kills the small operator before the lottery resolves favorably. Our Bitcoin mining profitability analysis covers the pool mining economics in detail.
A fifth pattern, the hybrid 80/20 split, is worth considering for operators already running industrial ASICs. Point 80 percent of hashrate at an FPPS pool for predictable cash flow. Point the remaining 20 percent at CKPool or self-hosted Public Pool for solo lottery upside. The August 17, 2025 9 PH/s solo block win at $285,000 came from this exact pattern: an industrial operator allocating part of their fleet to solo while keeping the majority on a payout pool. The hybrid approach captures most of the EV from pooled mining while preserving real lottery exposure. For operators with 10+ industrial ASICs, the math arguably favors hybrid over pure pool.
Setup walkthrough: 5 minutes from box to first share
First-time Bitaxe Gamma setup is genuinely 5 minutes from unboxing to first valid share submitted to CKPool. The process is documented in detail across the Bitaxe.org community wiki, but the abbreviated version: unbox the unit, plug the included USB-C power cable into a 5V/2A power supply (any phone charger works), and wait 30 seconds. The Bitaxe creates a WiFi access point named "Bitaxe_XXXX" where XXXX is the last four characters of the device MAC address. Connect to that hotspot from a phone or laptop, navigate to 192.168.4.1 in any browser, and the AxeOS configuration page loads.
Configuration takes three fields. WiFi SSID and password (so the Bitaxe can join your home network and reach the internet). Stratum pool URL: enter solo.ckpool.org for global CKPool, eusolo.ckpool.org for European users, or btc.public-pool.io for Public Pool. Worker username: enter your own Bitcoin address (a bech32 address starting bc1q is recommended) followed by a worker name like .desk1. The address is where any block reward will be sent. Hit save. The Bitaxe reboots, connects to your WiFi, joins the pool, and begins hashing. The OLED display on the unit (or the AxeOS dashboard at the Bitaxe's new local IP) shows live hashrate, ASIC temperature, share count, and best difficulty achieved. First valid share submitted within 60-120 seconds of pool connection.
Five common first-time setup issues and their fixes. First, WiFi 5 GHz: the Bitaxe only supports 2.4 GHz. If your home WiFi is dual-band, ensure the Bitaxe joins the 2.4 GHz SSID specifically. Second, pool URL syntax: use stratum+tcp://solo.ckpool.org:3333 if AxeOS asks for the protocol prefix; many configurations work without it but the explicit form is most reliable. Third, worker name: do not use the worker name field for the Bitcoin address; the address goes in the username field, the worker name is the suffix after the period. Fourth, temperature: if the ASIC temperature exceeds 65°C, ensure the heatsink is fully seated and consider upgrading to the Dark Horse pin-fin heatsink ($15-20 aftermarket) for better thermal performance. Fifth, "best difficulty" not climbing: this is normal at low hashrate; the best-difficulty share you submit may be 100x or 1000x lower than the network difficulty, and that is fine because every share counts toward your block-finding probability proportionally.
Operators who want a more comprehensive walkthrough including pool selection logic, worker naming conventions, and first-share verification can reference our F2Pool setup guide, which covers the same basic workflow for an FPPS pool. The mechanics are nearly identical between solo and pool configurations; only the URL changes.
The honest case for and against solo mining
The case for solo mining at small hobbyist scale is genuine and underappreciated. First, the asymmetric payoff structure is real. A Bitaxe Gamma costs $105 plus negligible electricity over 5 years. The probability of a $200,000+ payoff in that period is approximately 0.11 percent. Expected value is roughly $220 against $105 of hardware plus $90 of 5-year electricity. The expected value calculation favors the buy, even though the median outcome is $0 winnings. That asymmetry is the entire reason serious mathematicians have been saying since 2014 that solo mining at small scale is rationally defensible.
Second, the decentralization argument is empirically true. As of May 2026, the largest 4 mining pools (Foundry, AntPool, ViaBTC, F2Pool) coordinate roughly 70-75 percent of network hashrate. Solo miners running their own coordination services contribute the most decentralized possible block construction. Per the Bitaxe.org project description: "the project exists because hardware diversity and pool diversity are both necessary for Bitcoin's long-term security properties." A single Bitaxe Gamma in a basement contributes more decentralization value than the same hashrate routed through Foundry.
Third, the educational value is significant. Operators who run a Bitaxe at home learn what hashrate actually means, how block-finding probability works, how Stratum protocol coordinates work between miners and pools, what shares versus blocks are, and how to read mempool.space. None of those concepts are easily learnable through pool mining at industrial scale where the operator never sees the underlying mechanics. The Bitaxe is a teaching device that happens to also mine Bitcoin.
The case against solo mining at small scale is equally honest. The probability of finding a block is genuinely tiny. Most operators will run Bitaxe hardware for years and never win. The expected daily revenue at small scale is essentially $0 (statistically nonzero but practically indistinguishable from zero in any normal time horizon). If your goal is income, solo mining at hobbyist scale is the wrong tool. Pool mining produces predictable daily payouts that compound over time. Solo mining produces $0 most of the time and a windfall extremely rarely.
Second, the variance is brutal. A $0.05/day Bitaxe over 5 years costs roughly $90 in electricity plus the $105 hardware purchase. If the lottery does not hit, the operator is out roughly $200 with nothing to show for it except the hardware (which retains some resale value but depreciates with each ASIC chip generation). Operators who underestimate variance and keep buying more units expecting "their luck to turn" can rack up multi-thousand-dollar losses with no winnings against them. That is a structural failure mode worth flagging directly.
Third, opportunity cost relative to industrial mining or simple BTC accumulation is real. The same $105 spent on Bitaxe Gamma hardware would buy approximately 0.0014 BTC at current spot price of $74,000. Held over 5 years at any reasonable BTC price appreciation thesis, that 0.0014 BTC has expected value comparable to (and possibly exceeding) the lottery payoff math from the Bitaxe. Operators who treat solo mining as a strict alternative to spot BTC accumulation often come out behind. The right mental model is: solo mining is participation plus education plus lottery upside, not an investment alternative to holding BTC directly.
Frequently asked questions
Can I really win a full Bitcoin block with a Bitaxe?
Mathematically yes, statistically very rarely. A 1.2 TH/s Bitaxe Gamma faces approximately 1-in-1.6-million daily odds of finding a block at current network hashrate of approximately 1,000 EH/s. Over 5 years of continuous operation the cumulative probability is approximately 0.11 percent. Six documented small-miner wins between March 2025 and April 2026 prove that wins do happen, but they are outliers against very long base-rate odds. The November 21, 2025 win at 5.4 TH/s came against approximately 1-in-180-million odds at that hashrate. Buy a Bitaxe expecting to participate in network security and have a real (if very small) shot at a major payoff. Do not buy a Bitaxe expecting to find a block.
How much does it cost to run a Bitaxe Gamma per month?
A Bitaxe Gamma 602 draws 17W of power. Running 24/7 at $0.12/kWh (typical US residential rate) consumes approximately 12.4 kWh per month, which costs about $1.50. At $0.20/kWh (premium European rates) the monthly cost is approximately $2.50. At $0.08/kWh (industrial or solar-offset rates) the cost is roughly $1.00. The electricity is the dominant cost; the hardware ($105) amortizes over 3-5 years of operation. Total 5-year cost of ownership at typical residential rates: approximately $195 ($105 hardware + $90 electricity).
Bitaxe Gamma vs NerdQAxe++: which should I buy?
Different products for different goals. The Bitaxe Gamma 602 at $105 with 1.2 TH/s is the right entry point for hobbyists and beginners. The NerdQAxe++ Rev 6 at approximately $400 with 4.8 TH/s is the right choice for operators who want meaningful lottery odds at the multi-terahash level. Per chip the BM1370 silicon is identical between products; the difference is form factor, chip count, and price. If you want the cheapest possible participation, buy the Gamma. If you want to play the lottery seriously at small scale, buy multiple NerdQAxe++ units. If you want a desk dashboard with on-device display, buy the Bitaxe Touch Turbo or Nerdaxe Gamma instead of the standard Gamma 602.
What is solo CKPool and is it safe?
Solo CKPool is the canonical Bitcoin solo mining coordination service, launched in 2014 by Australian developer Con Kolivas (creator of cgminer). The service is anonymous (no account, no KYC, no signup), uses your Bitcoin address as worker identity, charges 2 percent of any block reward, and has produced 313 documented solo blocks since launch. Block rewards are paid directly to your Bitcoin address with no intermediary custody. The service is operationally safe (12+ years of clean operation) but is not a guarantee of payouts: if you do not find a block, you earn nothing. CKPool itself takes no custody of funds at any point; the 2% fee is deducted by the protocol when block reward is distributed.
Can I run a Bitaxe on solar power?
Yes, easily. A Bitaxe Gamma draws 17W, which is well within the daytime output of even a small portable solar panel (a 50W panel produces 30-40W under good conditions). Operators commonly run Bitaxes 24/7 by combining a small solar setup with a battery buffer (a 12V LiFePO4 battery with USB-C inverter handles overnight operation). Total system cost for solar plus battery plus Bitaxe runs approximately $300-500 depending on panel size and battery capacity. The economics are interesting because at zero marginal electricity cost the Bitaxe operates at infinite EV multiplier on the lottery odds.
How do I overclock a Bitaxe Gamma?
Access the AxeOS settings page in any browser at the Bitaxe local IP, then append ?oc to the URL (for example: http://192.168.1.50/#/settings?oc) to unlock frequency and voltage controls. Start at stock settings (525-596 MHz at 1150 mV) and increase frequency in 25-50 MHz increments, testing stability for 15-60 minutes at each step. Increase core voltage in 25 mV steps when instability occurs. Common stable overclock settings include 700 MHz at 1200 mV for moderate gains (1.4-1.6 TH/s) or 850 MHz at 1300 mV for aggressive performance (1.8-2.0 TH/s). Successful overclocking requires upgraded cooling such as the Dark Horse pin-fin heatsink ($15-20) and a quality 30W+ power supply. Keep ASIC temperatures below 65°C and voltage regulator temps below 80°C for stable 24/7 operation.
What happens if I find a block? How do I get the BTC?
When your Bitaxe finds a valid block, AxeOS shows the event on the dashboard, the share is submitted to the pool (CKPool or whichever you configured), and the pool operator broadcasts the block to the Bitcoin network. After 100 confirmations (approximately 16-17 hours), the coinbase output (the block subsidy plus transaction fees) becomes spendable. Solo CKPool deducts its 2 percent fee at this point and sends the remainder directly to the Bitcoin address you used as worker username during setup. No additional action is required. Verify the address you entered during AxeOS setup is one you control (private keys held in your wallet, not an exchange address); the BTC will land at exactly that address. Several documented winners have found blocks while asleep and discovered the win the next morning by checking mempool.space.
Is solo mining legal? Do I need to report it on taxes?
Legal in most jurisdictions including the US, EU member states, UK, Canada, and most of Asia. Mining is treated as residential computing activity at the household scale. For tax purposes, any block reward (or pooled mining payout) is treated as ordinary income at fair market value when received, and any subsequent sale or trade is a capital gains event. Our complete Bitcoin mining taxes 2026 guide covers the dual-event tax structure and the new Form 1099-DA requirements for US operators starting with 2025 returns. Solo block wins are unambiguously taxable income; receiving a $200,000 windfall against a small hardware base means the tax bill on a winning block is meaningful (potentially $50,000-$80,000 in federal+state taxes depending on the operator's state and bracket). Plan for the tax liability before the windfall arrives, not after.
What's the difference between Bitaxe and NerdMiner?
NerdMiner is an ESP32-based device that hashes at approximately 55 KH/s (kilohertz, not terahertz) using only the microcontroller's CPU computing SHA-256. It is purely an educational tool, not a serious mining device. NerdMiner produces effectively zero hashrate against network odds of 1,000 EH/s and will essentially never find a block. Bitaxe and NerdAxe (note the spelling: NerdAxe is the BM1370 ASIC variant, distinct from the original NerdMiner) are real ASIC miners with industrial-grade hashrate. If you want to learn about Bitcoin mining mechanics with effectively zero risk, buy a NerdMiner ($30-50). If you want a real (if small) shot at finding a block, buy a Bitaxe or NerdAxe.
Should I solo mine altcoins instead of Bitcoin?
Possibly, depending on goals. Some altcoins have much lower network difficulty than Bitcoin, which improves solo mining odds substantially. The tradeoff is that the block rewards are denominated in the altcoin (which has much lower price than BTC), the markets are less liquid, and the long-term protocol viability of many altcoins is uncertain. Litecoin and Dogecoin merged mining is a strong alternative for home miners at residential electricity rates because the same Scrypt hashrate earns both LTC and DOGE simultaneously. Our Litecoin and Dogecoin merged mining guide covers that strategy in detail. For operators who want SHA-256 specifically (same as Bitcoin), there are no good Bitcoin-equivalent altcoins; the best SHA-256 chains beyond Bitcoin are minor and not worth solo mining.
Closing: the only honest way to think about the $90 ticket
Solo mining Bitcoin in 2026 is a deliberate participation choice with three components: real (if very small) lottery upside, meaningful decentralization contribution, and significant educational value. None of those three justify solo mining as a profit-seeking strategy. All three together justify it as a hobbyist activity for people who care about Bitcoin's long-term properties and want a tangible stake in the network beyond just holding spot BTC.
The right hardware for almost everyone reading this for the first time is a single Bitaxe Gamma 602 at $105. It is the cheapest entry point, ships from Solo Satoshi or PowerMining or D-Central with a 90-day warranty, sets up in 5 minutes, runs whisper-quiet at 38 dB, draws 17W (less than a phone charger), and gives the operator a real share of network hashrate plus a documented (if very small) probability of a major payoff. The asymmetric payoff math says EV is positive over 5-year horizons. The decentralization math says the network benefits from your participation. The education math says you will understand Bitcoin mining at a level no pool miner ever does. All three add up to "yes, buy the $105 ticket." Do not expect to win.
For operators who want to play the lottery more seriously, stack 5 NerdQAxe++ units for approximately $2,000 in hardware. The 5-year probability of finding a block at that scale is approximately 2.2 percent. Real but still very long. The hardware retains resale value if the lottery does not resolve favorably and the operator decides to switch to pool mining. For sovereignty maximalists, run an Umbrel home server with a Bitcoin node and self-hosted Public Pool, point a Bitaxe Gamma at the local pool, and operate the entire stack with no third-party trust. The setup is more complex but produces the most decentralized possible block construction.
For operators whose goal is income rather than participation, do not solo mine. Buy a current-generation industrial ASIC, point it at a low-fee FPPS pool, and accept predictable daily payouts. We ship those machines daily across our 30,000+ deployed fleet; our best Bitcoin miners 2026 ranking covers the unit-level economics across the S21, S21 XP, S21 XP Hydro, S23 Hydro, and competitor models. For operators wondering whether to host the equipment with us versus running at home, our home mining vs hosted mining comparison walks through the full cost of ownership at $0.08/kWh hosting versus typical residential rates.
The bc1q...edvj operator who won $222,000 on April 9, 2026 was running roughly $5-7 of electricity per day to spin 70 TH/s. They had been mining for an unknown number of days or months prior to the win. The probability of any given day producing the win was approximately 1 in 100,000. The probability of the win happening at all was the product of that base rate and however long they had been running. Per Con Kolivas: "a miner of this size has only a 1 in 100,000 chance of solving a block per day, or once every 300 years." It happened anyway. The base rate is the base rate. Variance does the rest. That is the entire pitch for solo mining at hobbyist scale: the base rates are honest, the variance occasionally rewards persistence, and the hardware costs are small enough that "playing for years" is genuinely affordable. If you are intrigued enough to have read this far, the $105 Bitaxe Gamma is probably the right next step.
Profile 02 is the lottery hopeful. Budget: $1,000-$2,000. Buy a stack of 5 NerdQAxe++ units (approximately 24 TH/s combined) or a swarm of 8-10 Bitaxe Gammas (approximately 10-12 TH/s combined). Point everything at CKPool. Daily electricity cost at typical rates is about $1.10. The 5-year probability climbs to roughly 2.2 percent. Why this works: stacking the hashrate moves the math from "lottery participation" to "lottery played seriously at small scale." Daily odds of approximately 1 in 80,000. Real, but still very long. The hardware cost is recoverable through pool mining if the operator decides to switch strategies; until then it is a structured speculation with educational benefits.
Profile 03 is the sovereign node-runner. Budget: $300-$700. Buy a Bitaxe Gamma plus an Umbrel home server, run a full Bitcoin node, run self-hosted Public Pool on the Umbrel, and point the Bitaxe at the local pool instance. Daily electricity cost across the full stack is about $0.10. The 5-year block-finding probability is the same as Profile 01 (~0.11%). The point of Profile 03 is not the lottery upside; it is the sovereignty stack. Your own node validates every transaction. Your own pool constructs every block (if and when you find one). You pick your own transactions. No third-party trust at any layer. For operators who care about Bitcoin's decentralization properties at the protocol level, Profile 03 is the only configuration that fully delivers.
Profile 04 is the pure profit-seeker. Budget: any. Do not solo mine. Buy a current-generation industrial ASIC (Antminer S21, S21 XP, or S23 Hydro), point it at a low-fee FPPS pool like Foundry USA or F2Pool, and accept predictable daily payouts. Daily revenue at typical pool rates and current network conditions runs $6-$9 per S21. Variance is low. The 5-year cumulative probability of finding a block in a pool context is mathematically irrelevant because you collect proportional payouts regardless. Solo mining is structurally negative-EV at small scale relative to pool mining, even after accounting for the 1-2% pool fee, because variance kills the small operator before the lottery resolves favorably. Our Bitcoin mining profitability analysis covers the pool mining economics in detail.
A fifth pattern, the hybrid 80/20 split, is worth considering for operators already running industrial ASICs. Point 80 percent of hashrate at an FPPS pool for predictable cash flow. Point the remaining 20 percent at CKPool or self-hosted Public Pool for solo lottery upside. The August 17, 2025 9 PH/s solo block win at $285,000 came from this exact pattern: an industrial operator allocating part of their fleet to solo while keeping the majority on a payout pool. The hybrid approach captures most of the EV from pooled mining while preserving real lottery exposure. For operators with 10+ industrial ASICs, the math arguably favors hybrid over pure pool.
Setup walkthrough: 5 minutes from box to first share
First-time Bitaxe Gamma setup is genuinely 5 minutes from unboxing to first valid share submitted to CKPool. The process is documented in detail across the Bitaxe.org community wiki, but the abbreviated version: unbox the unit, plug the included USB-C power cable into a 5V/2A power supply (any phone charger works), and wait 30 seconds. The Bitaxe creates a WiFi access point named "Bitaxe_XXXX" where XXXX is the last four characters of the device MAC address. Connect to that hotspot from a phone or laptop, navigate to 192.168.4.1 in any browser, and the AxeOS configuration page loads.
Configuration takes three fields. WiFi SSID and password (so the Bitaxe can join your home network and reach the internet). Stratum pool URL: enter solo.ckpool.org for global CKPool, eusolo.ckpool.org for European users, or btc.public-pool.io for Public Pool. Worker username: enter your own Bitcoin address (a bech32 address starting bc1q is recommended) followed by a worker name like .desk1. The address is where any block reward will be sent. Hit save. The Bitaxe reboots, connects to your WiFi, joins the pool, and begins hashing. The OLED display on the unit (or the AxeOS dashboard at the Bitaxe's new local IP) shows live hashrate, ASIC temperature, share count, and best difficulty achieved. First valid share submitted within 60-120 seconds of pool connection.
Five common first-time setup issues and their fixes. First, WiFi 5 GHz: the Bitaxe only supports 2.4 GHz. If your home WiFi is dual-band, ensure the Bitaxe joins the 2.4 GHz SSID specifically. Second, pool URL syntax: use stratum+tcp://solo.ckpool.org:3333 if AxeOS asks for the protocol prefix; many configurations work without it but the explicit form is most reliable. Third, worker name: do not use the worker name field for the Bitcoin address; the address goes in the username field, the worker name is the suffix after the period. Fourth, temperature: if the ASIC temperature exceeds 65°C, ensure the heatsink is fully seated and consider upgrading to the Dark Horse pin-fin heatsink ($15-20 aftermarket) for better thermal performance. Fifth, "best difficulty" not climbing: this is normal at low hashrate; the best-difficulty share you submit may be 100x or 1000x lower than the network difficulty, and that is fine because every share counts toward your block-finding probability proportionally.
Operators who want a more comprehensive walkthrough including pool selection logic, worker naming conventions, and first-share verification can reference our F2Pool setup guide, which covers the same basic workflow for an FPPS pool. The mechanics are nearly identical between solo and pool configurations; only the URL changes.
The honest case for and against solo mining
The case for solo mining at small hobbyist scale is genuine and underappreciated. First, the asymmetric payoff structure is real. A Bitaxe Gamma costs $105 plus negligible electricity over 5 years. The probability of a $200,000+ payoff in that period is approximately 0.11 percent. Expected value is roughly $220 against $105 of hardware plus $90 of 5-year electricity. The expected value calculation favors the buy, even though the median outcome is $0 winnings. That asymmetry is the entire reason serious mathematicians have been saying since 2014 that solo mining at small scale is rationally defensible.
Second, the decentralization argument is empirically true. As of May 2026, the largest 4 mining pools (Foundry, AntPool, ViaBTC, F2Pool) coordinate roughly 70-75 percent of network hashrate. Solo miners running their own coordination services contribute the most decentralized possible block construction. Per the Bitaxe.org project description: "the project exists because hardware diversity and pool diversity are both necessary for Bitcoin's long-term security properties." A single Bitaxe Gamma in a basement contributes more decentralization value than the same hashrate routed through Foundry.
Third, the educational value is significant. Operators who run a Bitaxe at home learn what hashrate actually means, how block-finding probability works, how Stratum protocol coordinates work between miners and pools, what shares versus blocks are, and how to read mempool.space. None of those concepts are easily learnable through pool mining at industrial scale where the operator never sees the underlying mechanics. The Bitaxe is a teaching device that happens to also mine Bitcoin.
The case against solo mining at small scale is equally honest. The probability of finding a block is genuinely tiny. Most operators will run Bitaxe hardware for years and never win. The expected daily revenue at small scale is essentially $0 (statistically nonzero but practically indistinguishable from zero in any normal time horizon). If your goal is income, solo mining at hobbyist scale is the wrong tool. Pool mining produces predictable daily payouts that compound over time. Solo mining produces $0 most of the time and a windfall extremely rarely.
Second, the variance is brutal. A $0.05/day Bitaxe over 5 years costs roughly $90 in electricity plus the $105 hardware purchase. If the lottery does not hit, the operator is out roughly $200 with nothing to show for it except the hardware (which retains some resale value but depreciates with each ASIC chip generation). Operators who underestimate variance and keep buying more units expecting "their luck to turn" can rack up multi-thousand-dollar losses with no winnings against them. That is a structural failure mode worth flagging directly.
Third, opportunity cost relative to industrial mining or simple BTC accumulation is real. The same $105 spent on Bitaxe Gamma hardware would buy approximately 0.0014 BTC at current spot price of $74,000. Held over 5 years at any reasonable BTC price appreciation thesis, that 0.0014 BTC has expected value comparable to (and possibly exceeding) the lottery payoff math from the Bitaxe. Operators who treat solo mining as a strict alternative to spot BTC accumulation often come out behind. The right mental model is: solo mining is participation plus education plus lottery upside, not an investment alternative to holding BTC directly.
Frequently asked questions
Can I really win a full Bitcoin block with a Bitaxe?
Mathematically yes, statistically very rarely. A 1.2 TH/s Bitaxe Gamma faces approximately 1-in-1.6-million daily odds of finding a block at current network hashrate of approximately 1,000 EH/s. Over 5 years of continuous operation the cumulative probability is approximately 0.11 percent. Six documented small-miner wins between March 2025 and April 2026 prove that wins do happen, but they are outliers against very long base-rate odds. The November 21, 2025 win at 5.4 TH/s came against approximately 1-in-180-million odds at that hashrate. Buy a Bitaxe expecting to participate in network security and have a real (if very small) shot at a major payoff. Do not buy a Bitaxe expecting to find a block.
How much does it cost to run a Bitaxe Gamma per month?
A Bitaxe Gamma 602 draws 17W of power. Running 24/7 at $0.12/kWh (typical US residential rate) consumes approximately 12.4 kWh per month, which costs about $1.50. At $0.20/kWh (premium European rates) the monthly cost is approximately $2.50. At $0.08/kWh (industrial or solar-offset rates) the cost is roughly $1.00. The electricity is the dominant cost; the hardware ($105) amortizes over 3-5 years of operation. Total 5-year cost of ownership at typical residential rates: approximately $195 ($105 hardware + $90 electricity).
Bitaxe Gamma vs NerdQAxe++: which should I buy?
Different products for different goals. The Bitaxe Gamma 602 at $105 with 1.2 TH/s is the right entry point for hobbyists and beginners. The NerdQAxe++ Rev 6 at approximately $400 with 4.8 TH/s is the right choice for operators who want meaningful lottery odds at the multi-terahash level. Per chip the BM1370 silicon is identical between products; the difference is form factor, chip count, and price. If you want the cheapest possible participation, buy the Gamma. If you want to play the lottery seriously at small scale, buy multiple NerdQAxe++ units. If you want a desk dashboard with on-device display, buy the Bitaxe Touch Turbo or Nerdaxe Gamma instead of the standard Gamma 602.
What is solo CKPool and is it safe?
Solo CKPool is the canonical Bitcoin solo mining coordination service, launched in 2014 by Australian developer Con Kolivas (creator of cgminer). The service is anonymous (no account, no KYC, no signup), uses your Bitcoin address as worker identity, charges 2 percent of any block reward, and has produced 313 documented solo blocks since launch. Block rewards are paid directly to your Bitcoin address with no intermediary custody. The service is operationally safe (12+ years of clean operation) but is not a guarantee of payouts: if you do not find a block, you earn nothing. CKPool itself takes no custody of funds at any point; the 2% fee is deducted by the protocol when block reward is distributed.
Can I run a Bitaxe on solar power?
Yes, easily. A Bitaxe Gamma draws 17W, which is well within the daytime output of even a small portable solar panel (a 50W panel produces 30-40W under good conditions). Operators commonly run Bitaxes 24/7 by combining a small solar setup with a battery buffer (a 12V LiFePO4 battery with USB-C inverter handles overnight operation). Total system cost for solar plus battery plus Bitaxe runs approximately $300-500 depending on panel size and battery capacity. The economics are interesting because at zero marginal electricity cost the Bitaxe operates at infinite EV multiplier on the lottery odds.
How do I overclock a Bitaxe Gamma?
Access the AxeOS settings page in any browser at the Bitaxe local IP, then append ?oc to the URL (for example: http://192.168.1.50/#/settings?oc) to unlock frequency and voltage controls. Start at stock settings (525-596 MHz at 1150 mV) and increase frequency in 25-50 MHz increments, testing stability for 15-60 minutes at each step. Increase core voltage in 25 mV steps when instability occurs. Common stable overclock settings include 700 MHz at 1200 mV for moderate gains (1.4-1.6 TH/s) or 850 MHz at 1300 mV for aggressive performance (1.8-2.0 TH/s). Successful overclocking requires upgraded cooling such as the Dark Horse pin-fin heatsink ($15-20) and a quality 30W+ power supply. Keep ASIC temperatures below 65°C and voltage regulator temps below 80°C for stable 24/7 operation.
What happens if I find a block? How do I get the BTC?
When your Bitaxe finds a valid block, AxeOS shows the event on the dashboard, the share is submitted to the pool (CKPool or whichever you configured), and the pool operator broadcasts the block to the Bitcoin network. After 100 confirmations (approximately 16-17 hours), the coinbase output (the block subsidy plus transaction fees) becomes spendable. Solo CKPool deducts its 2 percent fee at this point and sends the remainder directly to the Bitcoin address you used as worker username during setup. No additional action is required. Verify the address you entered during AxeOS setup is one you control (private keys held in your wallet, not an exchange address); the BTC will land at exactly that address. Several documented winners have found blocks while asleep and discovered the win the next morning by checking mempool.space.
Is solo mining legal? Do I need to report it on taxes?
Legal in most jurisdictions including the US, EU member states, UK, Canada, and most of Asia. Mining is treated as residential computing activity at the household scale. For tax purposes, any block reward (or pooled mining payout) is treated as ordinary income at fair market value when received, and any subsequent sale or trade is a capital gains event. Our complete Bitcoin mining taxes 2026 guide covers the dual-event tax structure and the new Form 1099-DA requirements for US operators starting with 2025 returns. Solo block wins are unambiguously taxable income; receiving a $200,000 windfall against a small hardware base means the tax bill on a winning block is meaningful (potentially $50,000-$80,000 in federal+state taxes depending on the operator's state and bracket). Plan for the tax liability before the windfall arrives, not after.
What's the difference between Bitaxe and NerdMiner?
NerdMiner is an ESP32-based device that hashes at approximately 55 KH/s (kilohertz, not terahertz) using only the microcontroller's CPU computing SHA-256. It is purely an educational tool, not a serious mining device. NerdMiner produces effectively zero hashrate against network odds of 1,000 EH/s and will essentially never find a block. Bitaxe and NerdAxe (note the spelling: NerdAxe is the BM1370 ASIC variant, distinct from the original NerdMiner) are real ASIC miners with industrial-grade hashrate. If you want to learn about Bitcoin mining mechanics with effectively zero risk, buy a NerdMiner ($30-50). If you want a real (if small) shot at finding a block, buy a Bitaxe or NerdAxe.
Should I solo mine altcoins instead of Bitcoin?
Possibly, depending on goals. Some altcoins have much lower network difficulty than Bitcoin, which improves solo mining odds substantially. The tradeoff is that the block rewards are denominated in the altcoin (which has much lower price than BTC), the markets are less liquid, and the long-term protocol viability of many altcoins is uncertain. Litecoin and Dogecoin merged mining is a strong alternative for home miners at residential electricity rates because the same Scrypt hashrate earns both LTC and DOGE simultaneously. Our Litecoin and Dogecoin merged mining guide covers that strategy in detail. For operators who want SHA-256 specifically (same as Bitcoin), there are no good Bitcoin-equivalent altcoins; the best SHA-256 chains beyond Bitcoin are minor and not worth solo mining.
Closing: the only honest way to think about the $90 ticket
Solo mining Bitcoin in 2026 is a deliberate participation choice with three components: real (if very small) lottery upside, meaningful decentralization contribution, and significant educational value. None of those three justify solo mining as a profit-seeking strategy. All three together justify it as a hobbyist activity for people who care about Bitcoin's long-term properties and want a tangible stake in the network beyond just holding spot BTC.
The right hardware for almost everyone reading this for the first time is a single Bitaxe Gamma 602 at $105. It is the cheapest entry point, ships from Solo Satoshi or PowerMining or D-Central with a 90-day warranty, sets up in 5 minutes, runs whisper-quiet at 38 dB, draws 17W (less than a phone charger), and gives the operator a real share of network hashrate plus a documented (if very small) probability of a major payoff. The asymmetric payoff math says EV is positive over 5-year horizons. The decentralization math says the network benefits from your participation. The education math says you will understand Bitcoin mining at a level no pool miner ever does. All three add up to "yes, buy the $105 ticket." Do not expect to win.
For operators who want to play the lottery more seriously, stack 5 NerdQAxe++ units for approximately $2,000 in hardware. The 5-year probability of finding a block at that scale is approximately 2.2 percent. Real but still very long. The hardware retains resale value if the lottery does not resolve favorably and the operator decides to switch to pool mining. For sovereignty maximalists, run an Umbrel home server with a Bitcoin node and self-hosted Public Pool, point a Bitaxe Gamma at the local pool, and operate the entire stack with no third-party trust. The setup is more complex but produces the most decentralized possible block construction.
For operators whose goal is income rather than participation, do not solo mine. Buy a current-generation industrial ASIC, point it at a low-fee FPPS pool, and accept predictable daily payouts. We ship those machines daily across our 30,000+ deployed fleet; our best Bitcoin miners 2026 ranking covers the unit-level economics across the S21, S21 XP, S21 XP Hydro, S23 Hydro, and competitor models. For operators wondering whether to host the equipment with us versus running at home, our home mining vs hosted mining comparison walks through the full cost of ownership at $0.08/kWh hosting versus typical residential rates.
The bc1q...edvj operator who won $222,000 on April 9, 2026 was running roughly $5-7 of electricity per day to spin 70 TH/s. They had been mining for an unknown number of days or months prior to the win. The probability of any given day producing the win was approximately 1 in 100,000. The probability of the win happening at all was the product of that base rate and however long they had been running. Per Con Kolivas: "a miner of this size has only a 1 in 100,000 chance of solving a block per day, or once every 300 years." It happened anyway. The base rate is the base rate. Variance does the rest. That is the entire pitch for solo mining at hobbyist scale: the base rates are honest, the variance occasionally rewards persistence, and the hardware costs are small enough that "playing for years" is genuinely affordable. If you are intrigued enough to have read this far, the $105 Bitaxe Gamma is probably the right next step.
