This is the web site of the International DOI Foundation (IDF), which provides information on the DOI (Digital Object Identifier) system and its activities.

The DOI system provides a technical and social infrastructure for the registration and use of persistent interoperable identifiers for use on digital networks. The DOI system implements the Handle System and the indecs Framework.

The IDF is the governance and management body for the federation of Registration Agencies providing DOI services and registration, and is the registration authority for the ISO standard (ISO 26324) for the DOI system.

For information on the DOI system as a whole, consult the DOI Handbook, FAQs and factsheets on this site. For information on specific applications of the DOI system, contact the relevant Registration Agency.

Type or paste a DOI name (e.g., 10.1000/182) into the text box below.

• For policy, management, technical questions and operational issues: info@doi.org.
• For web site, mailing lists, password access, etc: contact@doi.org.
• For enquiries about specific application issues, contact the relevant Registration Agency.