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Persistent Identifiers

What are PIDs and how are they used?

PIDs are defined as permanent (therefore "persistent") digital identifiers consisting of numbers and/or alphanumeric characters. They are assigned to an object (e.g. a publication, research data, information about an individual, etc.) and reference it. PIDs ensure that objects remain discoverable on the Internet permanently, even if they undergo changes in storage location, such as website restructuring. They are therefore a crucial prerequisite for effective citation of objects. Various PIDs exist for different use cases. WU provides services for Digital Object Identifiers (DOIs) for publications and ORCID iD for personal identification.

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