You may write in to the ORCID Support Team to request them to mark one ORCID iD as a primary one, and the other iD as deprecated. Because ORCID identifiers are designed to be persistent, obsolete iDs will be deprecated, not deleted. The record associated with a deprecated iDs contains only a pointer to the primary record. Accessing a deprecated ORCID record redirects the requestor to the primary record, both in the user interface and the API. An example of a deprecated record is at


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