The Multi Pass module houses identifying information as well as basic profile data. The basic list includes, but is not limited to, Username PublicKey Status Verified_Status Global_Roles Badges Linked_Accounts as well as the Profile_Picture and Profile_Banner.
The Multipass module should be used when sending Friend requests, reading a user's profile, or sharing contact information across the system. It can also be used to associate data with a given user identity.