# Checkers - [Checker Overview](https://docs.pictor.network/docs/participants/checkers/checker-overview.md): Checkers are the validation side of the Pictor Network, responsible for verifying rendering outputs from Workers to ensure job accuracy while upholding the network’s integrity and quality. - [Checker Node NFT](https://docs.pictor.network/docs/participants/checkers/checker-node-nft.md) - [Checker Reward](https://docs.pictor.network/docs/participants/checkers/checker-reward.md) - [Checker Requirement](https://docs.pictor.network/docs/participants/checkers/checker-requirement.md) - [Get Started](https://docs.pictor.network/docs/participants/checkers/get-started.md): A step-by-step guide to stake Pictor NFTs to Pictor Checker Nodes, help verify rendering outputs, and earn real rewards directly. --- # 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://docs.pictor.network/docs/participants/checkers.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.