# 4.2.3 SOT NFT ERC-721 Token SOT NFT Tokens are non-fungible tokens (NFTs) specifically created to track ownership of Virtual Bots within the FingeRate app. These digital assets are minted for this purpose and are available on OpenSea: These NFTs are divided into grades (S, A, B, C, and D), which are based on their characteristics, including their location, the venue popularity, etc. In the future, a profit distribution program is set to provide NFT owners with added benefits. These owners will be entitled to a portion of the profits generated by their virtual bots. Profits are expected to be distributed on a quarterly basis. --- # 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://fingerate.gitbook.io/fingerate-whitepaper-v3.1/4.-tokenomy-and-ecosystem/4.2-tokens-and-mileage-unit/4.2.3-sot-nft-erc-721-token.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.