Hopium is back on the menu for solo Bitcoin 

BTC

$18,136

 miners. An approximately $240,000 reward, or 6.25 BTC, was generated by yet another solo miner on Tuesday morning. 

This time, the odds were less than 20%, according to Con Kolivas, a Bitcoin software engineer and administrator for CKPool, whose name takes his initials. It’s the fourth “blockfind” for the CKPool since Jan. 11.

Kolivas tweeted his congratulations to the miner who joins the ranks of the few and fortunate successful solo BTC miners.

The plucky miner belongs to the Solo CKPool, the service that offers anonymous solo Bitcoin mining with a fee. At 1.14 petahashes per second (PH/s), the miner is considered a “whale” miner, with a considerable hash rate for one single entity.

A new Bitcoin block is solved roughly every 10 minutes by miners competing against the entire Bitcoin network hash rate. By way of comparison, United States Bitcoin miners Foundry is currently the largest contributor to the network hash rate, with 33,803 PH/s.

One Twitter user estimated that while 1.14 PH/s is a lot, it is still less than a room full of S19s, the flagship mining product by Antminer.

Related: Bitcoin miners believe global hash rate to grow ‘aggressively’

The CKPool has taken the mining world by storm recently. A Bitcoin miner with a tiny hash rate of just 126 terahashes per second (TH/s) — possibly a single S19 machine — solved a valid block on Jan. 12. Two weeks later, another underdog with a mere 86 TH/s achieved the improbable by solving another valid block.

Over the course of the Bitcoin blockchain’s existence, 264 blocks or 0.037% of the 721,240 blocks were solved by CK’s solo Bitcoin miners. While the odds are clearly against the soloists, they continue to surprise and delight Bitcoiners.