The ORCID, Open Researcher and Contributor ID) is a nonproprietary alphanumeric code to uniquely identify authors and contributors of scholarly communication as well as ORCIDs website and services to look up authors and their bibliographic output (and other user-supplied pieces of information).
| Type | datatype | |
| Wikidata property | P496 | |
| Regular expression | 0000-000(1-[5-9]|2-[0-9]|3-[0-4])\d{3}-\d{3}[\dX] | |
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| Classification | Classification | identifier |
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