BT: [[research]] RT: [[information management]] --- # DOI **Digital object identifier** **(DOI).** Persistent identifier used to identify various unique objects, e.g. academic articles. Standardized by the International Organization for Standardization (ISO).[^1] - ↬ [Crossref: DOI Metadata search](https://search.crossref.org/) - ↬ [Crossref: DOI Simple Text query](https://doi.crossref.org/simpleTextQuery) [^1]: ‘Digital Object Identifier’, Wikipedia, last edited 7 September 2025, 09:54 (UTC), [https://en.wikipedia.org/wiki/Digital_object_identifier](https://en.wikipedia.org/wiki/Digital_object_identifier).