Solo Miner Mines Bitcoin Block, Earns $371,000
On August 17, a lone miner independently mined block #910,440 on the network of the first cryptocurrency, receiving 3,137 BTC (~$371,576) in rewards and fees, according to CK Pool administrator Con Kolivas.
Congratulations to miner bc1q~nwsgdw0wfh4trqal69fz with 9PH for solving the 305th solo block at https://t.co/UWgBvLk5AE! A miner of this size has about a 1 in 800 chance of solving a block per day.https://t.co/6WKLc4IshW pic.twitter.com/Z0OSzvBCFs
— Dr -ck (@ckpooldev) August 17, 2025
According to him, the miner mined coins on equipment with a hashrate of 9 TH/s. The probability of such an event is approximately 1 in 800 per day.
There were 4900 transactions in the block. Of these, about 3300 had a fee of less than a satoshi per virtual byte (sat/vB). The additional income from such transactions was only 0.0018 BTC (~$220) — 0.06% of the block reward.
At the same time, each such transaction created new UTXOs, increasing the load on the network without significant benefit for the miner.
Kolivas noted that enabling low-fee transactions was an experiment. Network participants like F2Pool had already started processing them, and abandoning the practice put solo miners at a disadvantage when mining new blocks.
The creator of CK Pool has concluded that the potential damage from mass creation of new UTXOs exceeds the “negligible financial benefit.” Now the pool will only monitor such transactions, but not include them in blocks.
“For transactions with such low fees to become at all significant for mining pools, the block reward must be reduced to extremely small values. I would only consider them if they increase income by at least 1%. However, this would require the total block reward to fall below 0.2 BTC – we are unlikely to reach such values in the coming decades,” the expert emphasized.
Kolivas called on other pools to reconsider their policies, as such transactions could negatively impact their fee structure in the long run.
Community Reaction
Users thanked the creator of CK Pool for the analysis. Fedora project founder Warren Togami called the UTXO expansion “a negative factor that most people ignored for years.”
“Mining UTXO-increasing blocks at too low a fee privatizes the profits while shifting the costs to everyone else,” he wrote.
On July 27, another solo miner managed to earn $372,773 for mining block #907,283.
Источник: cryptocurrency.tech
