ORCID is an open, non-profit, community-based effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. ORCID is unique in its ability to reach across disciplines, research sectors, and national boundaries and in its cooperation with other identifier systems. ORCID works with the research community to identify opportunities for integrating ORCID identifiers in key workflows, such as research profile maintenance, manuscript submissions, grant applications, and patent applications.
ORCID provides two core functions: (1) a registry to obtain a unique identifier and manage a record of activities, and (2) APIs that support system-to-system communication and authentication. ORCID makes its code available under an open source license, and will post an annual public data file under a CCO waiver for free download.