A Digital Object Identifier (DOI) is a unique and permanent identifier assigned to a digital items, making it easier to access and cite digital resources. DOIs are often associated with scholarly publications, research data, and other digital assets. They consist of two main components:
Prefix: Assigned by a registration agency (e.g., CrossRef), the prefix specifies the organization responsible for managing the DOI.
Suffix: A unique alphanumeric code assigned by the registrant to identify the specific digital object.
Example of a DOI in a citation. In this APA example, the DOI was assigned by the publisher, and in this case, Journal of Library Metadata.
