Imagine a solitary beige mining rig humming silently in a spare room somewhere. This type of device was state-of-the-art in 2019 but is now essentially a rounding error by the standards of industrial Bitcoin mining. Its owner directed it toward the Bitcoin network and challenged it to contend with warehouses full of specialized hardware run by publicly traded companies with equipment valued at tens of millions of dollars. That machine prevailed on April 9, 2026. Block 944,306 is owned by a lone miner with 70 terahashes per second of processing power. According to CKPool developer Con Kolivas, the odds of success are “once every 300 years.” The prize was 3.128 BTC, or about $222,000 in today’s currency. The machine is still operating.
In this instance, the winner of the bitcoin block reward is anonymous and can only be identified by the initial characters of a wallet address. These stories are strangely captivating in part because of their anonymity. A bell is not rung. No one uploads a picture.
A solved block is simply recorded by the blockchain, and the mining community becomes aware of it—typically because someone is monitoring the CKPool explorer or because the unexpected 70 TH/s signature appears against the network’s background noise like a firefly visible from a satellite. Within hours, Kolivas shared the congratulations on X, and as is always the case, word got out.
| What Is a Block Reward? | The payment awarded to the miner who successfully solves a cryptographic puzzle and adds a new block to the Bitcoin blockchain — currently 3.125 BTC per block following the April 2024 halving |
|---|---|
| Block Frequency | A new block is added approximately every 10 minutes; each valid block awards the winning miner the full subsidy plus transaction fees collected from that block |
| Recent Solo Win #1 | Block 944,306 — mined April 9, 2026; reward: 3.128 BTC (~$222,000); miner hashrate: 70 TH/s (equivalent to a single Bitmain Antminer S17+ from 2019); odds: 1-in-100,000 per day |
| Recent Solo Win #2 | Block 943,411 — mined April 2, 2026; reward: 3.139 BTC (~$210,000); miner hashrate: ~250 TH/s; odds: 1-in-28,000 per day; ended a 33-day CKPool drought |
| Recent Solo Win #3 | Block 938,092 — mined February 25, 2026; miner rented 1 petahash/second for ~$75 in cloud computing; reward: 3.125 BTC (~$200,000); return: ~2,600x on cost |
| Earlier Notable Wins | September 2025 — solo miner beat 1-in-100-year odds to win $350,000 block reward; December 2025 — another beat 1-in-82-year odds to win $285,000 |
| Solo Mining Platform | CKPool (eusolo.ckpool.org) — allows solo miners to submit solutions independently without sharing rewards, operated by developer Con Kolivas; miner keeps 100% of any block found minus a small fee |
| Total Network Hashrate | ~1.02 ZH/s (zettahashes per second) as of April 9, 2026 — a 70 TH/s solo miner represents approximately 0.0000069% of total network power |
| Solo Blocks in Past 12 Months | 21 individual miners successfully validated blocks over the past year — earning a combined ~66 BTC worth ~$4.1 million; one block found roughly every 17 days on average |
| Industrial Competition | Leading public mining firms: Bitdeer (~71 EH/s) and MARA Holdings (~61.7 EH/s) — millions of times more hashpower than the average solo miner |
Technically speaking, it’s important to know what actually transpired because the odds are so ethereal that they can seem phony. Every ten minutes or so, the Bitcoin network hosts a worldwide competition.
A cryptographic puzzle requires miners all over the world to make computational guesses about a target number that their hashed output must fall below. A higher hashrate increases the number of guesses per second, increasing the likelihood of locating the target first. At the moment, the network’s overall hashrate is approximately 1.02 zettahashes per second. One trillion gigahashes is equivalent to one zettahash. 70 terahashes, or roughly 0.0000069% of the total, were contributed by the lone miner who won block 944,306. The math of probability is truthful. It was truly a once-in-three-centuries occurrence. And yet.
April 2026 is unique because it wasn’t an isolated incident. Another lone miner on CKPool discovered block 943,411 just a week prior, making about $210,000. A 33-day drought on the platform was broken by a miner with roughly 250 terahashes of hashpower, which is still a small setup by industry standards and equivalent to one or two modern machines.
The miner also received the full reward. Prior to that, a miner in September 2025 won $350,000 against odds of one in 100 years, and another in December won $285,000 against odds of one in 82 years. From a statistical perspective, the frequency of these victories is astounding. There are either more people trying their luck than there used to be, or the universe is in an exceptionally giving mood.
A portion of it is likely explained by the increase in cloud hashrate rentals. In February of this year, a miner used an on-demand cloud service to rent about one petahash per second of processing power for about $75. After validating block 938,092, the miner pointed it at CKPool’s solo configuration and made over $200,000.
The transaction’s math is almost offensive in how unfair it was, yielding a return of about 2,600 times the price of a good dinner. These kinds of services have essentially transformed solo mining into something that is accessible to anyone with a credit card and resembles a scratch-off lottery with published odds. Compared to three years ago, when trying solo mining without physical hardware was hardly a serious idea, that represents a significant change.
It’s worthwhile to sit with this tension. Tens of hashpower exahashes were reported by MARA Holdings during the same weeks as these unlikely solo victories, Bitdeer managed a comparable scale, and the network’s overall difficulty was close to all-time highs following a 15% adjustment in early April. These business owners have transformed Bitcoin mining into a capital-intensive enterprise that reports quarterly earnings and competes with data centers for power contracts. In just the first quarter of 2026, Riot Platforms sold close to 3,800 BTC. Professional mining’s economics now resemble those of commodity extraction more than prospecting; it is methodical, marginal, and reliant on hedging techniques and negotiations over electricity prices. It’s difficult to ignore how much romance has been removed from that aspect of the business.
For this reason, even among those who work in institutional mining and are well aware of how difficult the odds are, solo win stories continue to garner attention. The notion that the network is still open, that a single machine in a spare room still has a nonzero chance, and that the system Satoshi designed in 2008 hasn’t completely closed itself off to the small participant is something that the community obviously doesn’t want to let go of. Given the level of industrial competition, it is questionable if that openness is currently practically meaningful. However, scale has no bearing on probability. A real, calculable chance is retained by any miner with hashpower. And one of them demonstrates it every few weeks.
It’s unlikely that the miner who won block 944,306 anticipated winning on April 9. No one does. That is the nature of lotteries, where the anticipated wait time is expressed in centuries. The intriguing thing is that they were operating at all—pointing an antiquated machine at a network where competition has increased by orders of magnitude, paying electricity costs that most likely surpass the anticipated value of continuously operating a 70 TH/s rig, and still managing to find a block. Describe it as illogical. Let’s call it hope. The two are not differentiated by the blockchain.
