Explainer · Plain-language
What is an ORCID iD?
An ORCID iD is a free 16-digit persistent identifier for an individual researcher. Format: 0000-0002-XXXX-XXXX. Registration takes about three minutes at orcid.org/register. It is now requested by virtually every major funder and publisher.
Why ORCID matters
Researcher disambiguation. Two researchers can share a name; one researcher can have multiple name variants (married name, transliteration, initials). ORCID gives every researcher one unique iD that follows them across institutions and over time. Funders, publishers, and CRIS systems all integrate ORCID for this reason.
How to get one
Register at orcid.org/register — 3 minutes. Add your affiliations, employment, and publications. Link your iD when submitting to funders, journals, and your institution's CRIS. Tools like Crossref + Scopus can auto-add your publications.
What it integrates with
Funders: NIH, NSF, Wellcome, UKRI, Horizon Europe, NSFC, ARC, NHMRC, and most others. Publishers: virtually all major ones. CRIS systems: Pure, Elements, VIVO, Worktribe. Repositories: most institutional repos + DataCite.
Privacy + visibility
You control what's public. By default, your name + iD + employment history are public; publications are public when imported; other fields are configurable to private / trusted / public.
Key facts
At a glance
- Format: 16-digit ID, dash-separated
- Cost: Free for researchers (always)
- Coverage: 16+ million live iDs (2026)
- Standard: ISO/IEC 27729 (ISNI-aligned)
- Steward: ORCID Inc., non-profit, US-incorporated
- Required by: NIH (since 2019), Wellcome (2015), virtually all major publishers
Common misconceptions
What people often get wrong
Often heard: You need to be an academic to register.
Actually: No — anyone doing research can register, including industry researchers, citizen scientists, etc.
Often heard: Your ORCID is the same as your institution's identifier.
Actually: No — ORCID identifies you as a person; ROR identifies your institution; these are complementary.
Often heard: ORCID stores your CV.
Actually: ORCID stores affiliations, employment, education, and works — it's closer to a publications record than a CV. For a full CV, use a narrative-CV format or your institutional system.
Going deeper
