Definition
A solo block occurs when an individual miner (not part of a pool’s shared hashrate) finds a valid block hash. The miner receives the full block reward: currently 3.125 BTC in subsidy plus all transaction fees. For small-scale miners, finding a solo block is exceptionally rare and is celebrated as a major event in the mining community.
There have been documented cases of Bitaxe miners finding solo blocks, which generated significant excitement in the open-source mining community. These events validate the principle that every hash has an equal probability of finding a block, regardless of the miner’s size.
In Simple Terms
A block found by a solo miner earning the full reward. Rare for small miners but hugely celebrated.
A Bitcoin block found by a solo miner rather than a mining pool. The miner receives the entire block reward. Extremely rare for small miners but celebrated in the community.