# Witnesses Nodes Oort’s mainnet consensus operates on a Proof of Stake (PoS) model, where blocks are validated by witnesses (validators) who must stake a specified amount of $OORT tokens to participate. To qualify as a witness, an account must 1. run a OORT witness node on a local or cloud machine that met the minimum hardware requirement. 2. create a staking pool which holds a total of 500,000 $OORT tokens. The pool's creator is required to directly stake 200,000 $OORT tokens from his own account, while the remaining 300,000 tokens can be contributed by the community. --- # 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.oortech.com/oort/infra/witnesses-nodes.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.