If you want users to log in to your Joomla site using their Orcid credentials, you can do it using our Joomla Orcid OAuth plugin. Once you configure the Orcid with the Joomla OAuth plugin, you can allow Orcid users to SSO into your Joomla site using Orcid.
Similarly, you can map your Joomla roles based on your Orcid attributes/groups. To know more about other features we provide in the Joomla OAuth plugin, you can download by click here.