The unique identification of researchers is essential in order to correctly assign scientific contributions - especially in the case of frequent names or name changes. Persistent identifiers (PIDs) such as the ORCID iD or the ISNI (International Standard Name Identifier) help to significantly improve the visibility and traceability of individual research activities.

These identifiers reliably link individuals to their publications, projects, institutions and other scientific outputs. In German-speaking countries, the GND (Gemeinsame Normdatei) is also used - primarily in libraries, but increasingly also in the context of research in the humanities.

The use of PIDs increases the precision, traceability and impact of scientific work and supports automated processes in research information systems, publication services and funding portals.

Which PIDs are used - and where are they available?

• ORCID (Open Researcher and Contributor ID)
  Researchers can apply for their ORCID iD themselves free of charge. They retain full control over the visibility and content of their profile and can specifically define which information may be reused by research information systems, for example.
• ISNI (International Standard Name Identifier)
  Is assigned to international persons and organizations and is particularly widespread in the cultural sector. It is assigned by accredited ISNI registries.
• GND (Gemeinsame Normdatei)
  A GND identity cannot be applied for yourself, but is assigned by qualified GND staff in the context of library indexing - e.g. when cataloging publications. The GND is primarily used in libraries, but is also increasingly being used in humanities research.

The results of the seminar on PIDs for persons from October 2023 can be viewed here.