Identity is a fundamental element in the traditional world to associate information to the same individuals. As we leave more and more digital footprints in the world of Internet, these information are giving birth to our digital profiles, raising issues of privacy protection, monetization of data, identity theft and more. While in this presentation, we revisit the manifestation and formation of identity in the incoming world of Web 3.0, and discover how the native citizens of Web 3.0 are forming their own identities and reputations with native behavior data that are distributed, interoperable, and self-sovereign.