Solo Bitcoin Miner Makes Over $197K in Rare Outcome

An anonymous solo miner validated a full Bitcoin (BTC) block after renting a small amount of computing power for a short time. The outcome delivered the entire block reward, turning a modest upfront cost into a significant windfall.

That result came from confirming block 938,092 on the Bitcoin blockchain, which rewarded the miner with 3.128 BTC. The reward combined the standard subsidy with transaction fees and was valued at about $197,546 at the time.

How the Miner Mined the Block

Data from Braiins and mempool.space shows the miner rented 1 petahash per second (PH/s) through an on-demand service. The rented hashrate was directed to Braiins Solo, which operates using open-source CKPool infrastructure.

The miner used the worker name “spiral” and paid no platform fees for the hashpower rental. They also paid a 0.5% solo-mining fee to support ongoing CKPool development.

Using this setup, the block was found in the early morning of Tuesday, February 24 (UTC), based on the recorded timestamp. It included 164 transactions and measured 101.68 kilobytes, which is relatively small by recent standards.

The result marked the first solo block mined under the new collaboration between Braiins and CKPool. Both teams publicly acknowledged the outcome, including CKPool developer Dr. -ck, who described it as a milestone.

Why the Outcome Was Unlikely

Solo mining involves extreme probability challenges due to the scale of the Bitcoin network. Global hashrate currently sits at around 1 zettahash per second, making small allocations statistically insignificant.

Mining difficulty was around 144.4 trillion at the time, further reducing the likelihood of success during short rental windows. Reports estimated the odds of this specific result at roughly one in eight thousand.

Even with these odds, the system allows any participant to attempt block discovery without permission. The process treats all valid hashpower equally, regardless of its source or duration.

This approach reflects Bitcoin’s design principle of open access rather than guaranteed outcomes. While most attempts fail, occasional successes reinforce the network’s decentralized nature.

No one has publicly identified the miner behind the block. Their payout and block confirmation remain permanently visible on the Bitcoin ledger for independent verification.

Bitcoin was trading around $64,400 at press time.

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