ORCID iD is a unique identifier for researchers and scholars. Learn how to recover your ORCID iD by email, or check your account page if you are logged in. Sign in to ORCID to access your account or register for a unique researcher identifier. The ORCID (/ ˈɔːrkɪd / ⓘ; Open Researcher and Contributor ID ) is a nonproprietary alphanumeric code to uniquely identify authors and contributors of scholarly communication. [1] ORCID provides a registry of unique identifiers for researchers and scholars that is open, non-proprietary, transparent, and mobile. Researchers can register, maintain, and control their ORCID record data, and grant permissions to trusted partners and integrations.