> For the complete documentation index, see [llms.txt](https://fingerate.gitbook.io/fingerate-whitepaper-v3.1/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](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).

# 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.