Solo Miner Discovers Bitcoin Block, Earns $210,000 Reward

Against the odds: block #943,411 goes to a lone miner

An independent Bitcoin miner running approximately 230 TH/s of hashpower has successfully found block #943,411, pocketing a reward of 3.139 BTC — roughly $210,000 at current prices. The data was confirmed via mempool.space.

CKPool administrator Con Kolivas noted that the odds of finding a block with that level of computing power are approximately 1 in 28,000 per day. This marks the 312th solo block mined through CKPool.

"Congratulations to miner bc1qtt7cr9cxykyp9g4hq47zf5lq9t97cxvq72lun3 with ~230TH for solving the 312th solo block… A miner of this size has a 1 in ~28k chance per day of solving a block." — Dr -ck (@ckpooldev), original post

Why it matters

Solo mining Bitcoin has become an exceptionally rare feat in an era dominated by industrial-scale mining pools commanding enormous hashrate. Each such occurrence serves as a reminder that the network's decentralized architecture still allows small participants to compete with major players — albeit with vanishingly small odds.

Over the past 12 months, solo miners have found only 20 blocks, collecting a combined 62.96 BTC. On average, these wins occur once every 18.7 days, with the longest gap stretching to 58 days.

The most recent prior success was block #938,092, found in late February with a reward of 3.125 BTC (~$196,650). In January, another solo operator earned 3.131 BTC ($289,191).

Mining difficulty and hashrate trends

Competition among miners continues to shift. Difficulty recently dropped 7.7% — the sharpest decline since February. However, on April 3, the latest adjustment pushed the metric up 3.87% to 138.97 T.

Meanwhile, the average hashrate measured by a seven-day moving average has been steadily declining since reaching its peak in mid-October 2025.

Miner profitability under pressure

Hashprice — the key metric for mining revenue — mirrors this downward trajectory. At the time of writing, it stands at $31.6 per PH/s per day. Industry professionals estimate the average breakeven threshold at roughly $40 per PH/s per day, suggesting significant pressure on less efficient operations.

According to a late-March analysis by CoinShares, up to 20% of miners are currently operating at a loss. Bitcoin was trading near $66,800 at the time of publication, per CoinGecko data.