Many thanks for the hint! After doing some digging I found ORCID API endpoints which are able to resolve DOIs and PMIDs to ORCID profiles. While not all of the

Many thanks for the hint! After doing some digging I found ORCID API endpoints which are able to resolve DOIs and PMIDs to ORCID profiles. While not all of the authors of the papers I checked are included (because some obviously do not have ORCIDs), this will likely solve the issue for a good chunk of the authors. Great!