https://www.pidforum.org/t/persistent-identifier-pid-definition/1502/11A PID is a digital identifier that is globally unique, persistent, machine resolvable, has an associated metadata schema, identifies an entity (e.g., individual researcher, publication, award, digital research output, organization) in perpetuity, and is frequently used to disambiguate between entities.
https://www.pidforum.org/t/persistent-identifier-pid-definition/1502/11A PID is a digital identifier that is globally unique, persistent, machine resolvable, has an associated metadata schema, identifies an entity (e.g., individual researcher, publication, award, digital research output, organization) in perpetuity, and is frequently used to disambiguate between entities.