Persistent Identifier
nounPronunciation: /pərˈsɪstənt aɪˈdɛntɪfaɪər/
A standardized, unique digital code assigned to online resources that remains stable and unchanging even if the resource's location or URL changes. Common types include DOIs, URNs, and Handle system identifiers that ensure long-term accessibility.
Plain English
A permanent digital address for online resources that stays the same even if the resource moves to a new location.
Etymology & History
Usage
"Librarians use persistent identifiers like DOIs to ensure researchers can access cited articles decades after publication."
Style guide notes: Write 'persistent identifier' lowercase in general use; capitalize 'DOI', 'URN', and 'Handle' when referring to specific systems.
Also known as
Contrasted with
Related Terms
Frequently Asked Questions
Why are persistent identifiers important for academic research?
They prevent link rot and ensure citations remain valid and accessible across time and institutional changes.
What is the most common type of persistent identifier?
DOI (Digital Object Identifier) is widely used for journal articles, datasets, and other scholarly content.
Why Test Candidates on This?
Critical for understanding digital preservation, scholarly communication infrastructure, and long-term resource access.
Required skill level: Senior