# PPLNS Model Apool is the first ever Qubic mining pool with the PPLNS payout model, which miner's revenue is calculated and distributed according to the valid shares submitted within an epoch. Currently, most Qubic mining pools out there on the market only offer solo mining, namely, miners earn revenues only by finding and reporting solutions to the pools. Compared to solo mining which small miners might face long periods without rewards, pplns is more flexible, under which miners receive consistent and predictable payout. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://apool.gitbook.io/help/qubic-faq/pplns-model.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.