Solo Bitcoin Miner Defies Record High Difficulty to Win $347K Block Reward

Sep 8, 2025, 6:39 a.m. 5 sources neutral

An independent Bitcoin miner has achieved a rare solo mining success, earning a block reward of approximately $347,000 worth of BTC. The miner successfully processed Block 913,632, receiving 3.13 BTC, which included the standard base reward of 3.125 BTC plus 0.0042 BTC in transaction fees. This block contained 593 transactions totaling 473.61 BTC valued at $52.6 million.

The event occurred amid Bitcoin's record-high mining difficulty of 136.04 trillion and a hashrate approaching 1 zettahash, making solo mining extremely improbable. The miner utilized Solo CKPool, a service that enables individuals to participate without operating a full Bitcoin node, similar to another solo mining success on Block 913,593 earlier this month and one in August.

Experts, including Peter Chung of Presto Labs and Arjun Vijay of Giottus, noted that such events underscore Bitcoin's decentralization despite industrial mining dominance. However, they emphasized that solo mining remains unfeasible for most, with odds comparable to winning a lottery or being struck by lightning, and recommended joining pools for consistent payouts.

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