> For the complete documentation index, see [llms.txt](https://docs.0xkyc.id/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.0xkyc.id/developer-guides/client-or-server-guide/sunscreen-uniquness-verification.md).

# Sunscreen - Uniquness Verification

#### Proof of Uniquness

Every user that goes through our app will be assigned a UUID, this is a unique identifier that will then be assigned and minted onto the blockchain. With every additional wallet our system picks up to be the same user, we assign the same UUID, networking individuals accross wallets. The uniquness verification system is based upon a biometric scan done of the user.