A solo Bitcoin miner achieved a remarkable feat on Saturday morning by successfully solving block 907283 using a modest hashrate of just 48.3 terahash per second (TH/s). This accomplishment is particularly impressive given the miner’s limited resources, especially when compared to the massive operations run by industrial-scale mining pools.
The miner was part of CK Pool, a platform that allows individuals to mine solo while still benefiting from the infrastructure of a traditional pool. Unlike standard mining pools where rewards are distributed among participants, CK Pool enables miners to retain the full block reward and maintain complete control over the coinbase transaction. This hybrid approach offers the best of both worlds: solo mining independence with the support of a pool’s backend systems.
According to the X account Solomining, the miner’s setup consisted of a single worker operating at 48.3 TH/s. While not using a Bitaxe device, the miner’s rig was still considered small, only about one-quarter the power of a modern Antminer S21+. Despite this, the soloist managed to beat the odds and secure the block reward entirely for themselves.
This block marks a significant milestone for CK Pool. The last time a block was found by a CK Pool solo miner was 2,294 blocks ago. With this latest success, CK Pool has now discovered eight blocks in 2025. For comparison, the pool found 16 blocks throughout all of 2024. These numbers highlight just how rare and unpredictable solo mining victories can be.
Solo miners face steep competition from dominant players like Foundry, Antpool, ViaBTC, and F2pool, which operate with immense hashrates and vast fleets of mining hardware. In contrast, solo miners typically run small setups, sometimes just a single machine. Their chances of solving a block are extremely low, making each success akin to winning a lottery.
What makes this event so noteworthy is the sheer improbability of it. With such a tiny fraction of the total network hashrate, the solo miner’s win stands out as a testament to persistence and luck. It’s a reminder that even in a landscape dominated by mining giants, there’s still room for the underdog to shine, if only for a moment.
