ORCID has a depreciation process to merge duplicate records created for one individual. This process keeps both ORCID iDs in the registry, and depreciates the duplicate ORCID record so it serves only as a pointer to the main ORCID iD.
Researchers can merge accounts if they still know the sign-in details (email address and password) for both accounts. Otherwise they can contact us to request our assistance in merging the duplicates.
Name check on the ORCID registration form
For more information, see: