DOI Foundation
DOI system documentation, reference handbook and agency information for understanding persistent identifiers.

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Separate the system, agency and identified object
The DOI Foundation governs the DOI system with registration agencies. The handbook explains these persistent identifiers. To retrieve an object’s metadata, identify its agency and record rather than searching only for a publisher name.
- System
- Shared framework for identification and resolution.
- Agency
- Services and registries for a community.
- Object
- The document or other object named by the identifier.
- Reference handbook
- DOI 10.1000/182 identifies the current handbook. Its landing page distinguishes the HTML edition and PDF version of record.
Does a valid DOI confirm the document’s conclusions?
No. Check content, version and publication status before drawing a conclusion.
Official documentation
Documentation consulted on .
Practical methods for this resource
Editorial selection, without website certification. Read our method.