A solitary Bitcoin miner has achieved an impressive milestone by successfully mining an entire block, resulting in a reward close to $350,000 in Bitcoin.
Key Highlights:
A lone miner overcame odds of 1-in-2,800 to mine a Bitcoin block and secured nearly $350,000.
Operating with a modest setup producing 2.3 petahashes per second (PH/s), this success illustrates that small-scale miners can still achieve significant rewards against the backdrop of low odds.
While industrial mining operations reduced their output in June, solo miners continue to exhibit contrasting levels of success.
Utilizing the CKpool solo mining pool, the miner’s rig, which operates at 2.3 PH/s, managed to solve block 903883, as indicated by mining data from Mempool Space.
Bitcoin historian Pete Rizzo highlighted the rarity of this event, recognizing it as a remarkable accomplishment.
Lone Miner Breaks Odds of 1-in-2,800 to Solve Bitcoin Block
The CKpool administrator noted that a miner with a 2.3 PH/s setup typically faces about a 1 in 2,800 chance of mining a block on any given day, translating to an average success rate of approximately once every eight years.
Under current network conditions, this represents a mere 0.004% chance of achieving a successful block every day.
The miner’s reward for this successful block yield included 3.173 BTC, valued at around $349,028 at the time of the feat.
Although the specific hardware configuration of the miner remains unknown, experts suggest it likely comprised several older-generation ASIC rigs that combined to achieve the modest hashrate of 2.3 PH/s.
In contrast, smaller hobbyist devices, such as the Bitaxe or USB-based NerdMiner, produce only terahashes or kilohashes per second, rendering their likelihood of successfully mining a full block virtually impossible.
BREAKING: A SOLO MINER JUST MINED AN ENTIRE #BITCOIN BLOCK WORTH OVER $350,000
THEY BEAT INCREDIBLE ODDS pic.twitter.com/Cp5xV7ZlKR
— The Bitcoin Historian (@pete_rizzo_) July 3, 2025
For those solo miners targeting the goal of mining a block monthly, it is estimated that approximately 166,000 terahashes per second—equivalent to around 500 Antminer S21 Hydro machines—would be required, representing a setup that could cost millions.
Nevertheless, the recent success of this lucky miner indicates that, in the realm of solo mining, fortune can occasionally favor the less likely competitors.
This notable win follows similar achievements by solo miners earlier in the year. In February, one miner successfully mined block 883,181, netting over $300,000, while another accomplished the same with block 899,826 in early June, earning approximately $330,000.
In the meantime, major industrial Bitcoin mining companies such as Riot Platforms, Cipher Mining, and MARA Holdings have reported decreased output throughout June.
These firms have curtailed operations in Texas to avoid incurring high demand charges during peak electricity usage periods typical of the summer months.
Chinese Influence Remains Prevalent in Global Bitcoin Mining
A recent report reveals that more than half of the global Bitcoin mining activities still have Chinese affiliations, with 55% to 65% of mining operations linked to Chinese capital, hardware, or expertise, according to Uminers CEO Batyr Hydyrov.
Despite a mining ban imposed by China in 2021, key Chinese operators have managed to retain influence by relocating their operations to other countries.
Leading manufacturers such as Bitmain, Canaan, and MicroBT, responsible for 99% of Bitcoin mining hardware, have shifted operations to the United States to evade tariffs, significantly raising America’s portion of Bitcoin’s total hashrate from 4% in 2019 to 38% today.
Hydyrov noted that many former Chinese miners have ramped up their capacities after relocating abroad, with some expanding by as much as 150%, while limited mining activities still persist within some of China’s remote areas where regulatory oversight is minimal.
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