One of the most widely adopted unique identifiers in higher education federated identity management is eduPersonPrincipalName (ePPN), defined as part of the eduPerson LDAP schema established by Internet2’s Middleware Architecture Committee for Education (MACE-dir). Historically, ePPN is defined by a campus and includes a local, unique identifier (netID) scoped at the campus domain, e.g. netID@university.edu.