By registering ORCID once and linking it directly to your institution ID via SURFconext, various services can automatically receive this number when you log in with your institution account. You will always be asked per service if you want to share your ORCID and you can undo this link at any time.
Create an ORCID directly or link an existing ORCID
About ORCID: https://orcid.org/about/what-is-orcid/mission
View links and revoke permissions: https://profile.surfconext.nl
Attribute aggregation and SURFconext: https://blog.surf.nl/en/enrich-your-identity-attribute-aggregation-in-surfconext/
By using a URL (1) generated by SURFconext, a user can connect an existing or new ORCID ID to the ID provided by the institution (2). The user grants permission to ORCID (3) to share this ID with SURFconext.