A solo Bitcoin miner successfully mined a block and earned $347,000, highlighting both the potential for individual success and the challenges posed by increasing mining difficulty.

Executive Summary

Amidst near-record high mining difficulty, a solo Bitcoin miner successfully mined block 913,632 and earned 3.13 BTC, valued at $347,872. This event underscores Bitcoin's decentralization but also highlights the increasing difficulty for individual miners to compete effectively against large mining pools. The miner operated through Solo CKPool, a service that enables individual miners to participate without running a full Bitcoin node.

The Event in Detail

On Sunday, a solo miner successfully processed block 913,632 using Solo CKPool, earning 3.13 BTC. The block contained 593 transactions totaling 473.61 BTC, worth $52.6 million. The miner's reward included the standard base reward of 3.125 BTC plus an additional 0.0042 BTC in transaction fees. This success occurred as Bitcoin's mining difficulty reached a record high of 136.04 trillion.

Market Implications

While large mining firms increasingly dominate the Bitcoin mining space, this event demonstrates that small and solo miners can still successfully mine blocks. This reinforces the narrative around Bitcoin's decentralization, offering a counterpoint to concerns about centralization due to the dominance of large mining operations. Currently, the five largest mining pools are Foundry (30%), AntPool (19%), ViaBTC (14.5%), F2Pool (10%), and MARA Pool (5%).

Expert Commentary

One expert says solo mining events highlight Bitcoin's decentralization despite industrial operations dominating the network.

Broader Context

Bitcoin mining is now more competitive than ever, with difficulty levels exceeding 129 trillion units. As a solo miner, the odds of success are approximately 1 in 2,800, or once every 8 years on average. Despite these odds, there are still reports of successful solo miners. Mining difficulty automatically adjusts every 2,016 blocks (roughly every two weeks) to maintain Bitcoin's 10-minute block time target. For solo miners, mining one Bitcoin requires approximately 860,000 kilowatt-hours (kWh) of electricity.