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How are organizations identified in ORCID?

About organization identifiers

Researchers may include employment and education affiliations in their ORCID records. Affiliations must include an institution's name and address but should also include a unique identifier to disambiguate the institution. Currently, ORCID uses Ringgold organization identifiers to generate a pick-list of organizations. Ringgold is a registration agency for ISNI, and the Ringgold database will soon include crosswalked ISNI organizational identifiers.

Affiliations selected from the pick-list in the ORCID interface are linked with a Ringgold identifier automatically. Affiliations added via the API should use the <disambigated-organization> field to include the Ringgold identifier. In each case, ORCID recommends that users choose the parent organization (and not the division or department) as the affiliation. Department and title information may be provided in a separate field.

(NOTE: Developers using the ORCID API for affiliations should use XSD Version 1.2 or higher. See the XSD Readme file for more information.)

Determining your Ringgold Identifier

Search for a single identifier

Ringgold provides a free search (registration is required) for looking up identifiers at For the best results, one should use the full name of the institution they seek, rather than abbreviations or acronyms. The main institution name will be recorded in its native language. Member organizations who need to locate multiple Ringgold identifiers should contact us for more information.

Get an identifier from the ORCID Registry

Institutions added to the ORCID Registry via the provided list in the user interface have their Ringgold identifier included when accessed via the API.


Updating Organizational Information

Since the data about organizations are maintained by Ringgold, any updates or corrections to data should be reported to them. The best way to report errors in existing organization records is by filling in the Search Feedback form found in the top menu bar at

Organizations not in Ringgold

ORCID will work with its members to ensure that each is included in Ringgold. If you are an ORCID member and are not listed in Ringgold, please contact us for more information.

Frequently Asked Questions about the ORCID API

  1. What is an API? What is OAuth?
  2. Does the API have an admin page?
  3. What is an integration?
  4. How do redirect URIs work?
  5. What's the difference between the Public and Member APIs?
  6. Is the Sandbox different from the Production Registry?
  7. Why am I not receiving messages from the Sandbox?
  8. Can I create ORCID records for my researchers using the API?
  9. Who controls the ORCID record?
  10. What if the researcher already has an ORCID record and registers a new one?
  11. How do you check for duplicate ORCID records?
  12. Why don't I see email addresses in the ORCID records I access?
  13. Can data on an ORCID record be entirely private?
  14. How can I find out when a researcher edits their record?
  15. How do I get my organization listed as a “Trusted Party” on a researcher’s ORCID Record?
  16. How do I get my system added to the ORCID Search & Link Wizard list?
  17. What schema does ORCID use?
  18. What version of the schema should I use?
  19. How will I be notified of changes and updates to the API and schema?
  20. What format can I export records in? Can I get them in a CVS or XLS spreadsheet?
  21. How long do access tokens last? Can I get one that doesn’t expire?
  22. What does this error code mean?
  23. What information is required when adding a work?
  24. What citation format do you prefer?
  25. What information should I add about work contributors?
  26. If a researcher already has a work with the same DOI as a work I add, will it be duplicated?
  27. If a researcher runs an import from my system twice, will the works be duplicated in their ORCID record?
  28. How are organizations identified in ORCID?

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