The ORCID Support Plugin provides basic ORCID functionality for an EPrints repository including the addition of a new ORCID metafield, ORCID rendering, validation, and basic reporting.
The documentation is hosted in the EPrints Wiki: https://wiki.eprints.org/w/ORCID_Support#ORCID_Support
The ORCID Support Plugin is also available on the EPrints Bazaar.