Persistent identifiers like DOIs help in rendering (scholarly and other) metadata "open" and FAIR (findable, accessible, interoperable and reusable). FAIR data are supposed to be "frictionless" by offering "trivially discoverable" and "trivially retrievable" information.
Within the scholarly publication system, most DOIs are registered via CrossRef. But there are other DOI registration agencies.
My question: Is there a single place where I can use a DOI as an input to get the respective registration agency as the output?
Example: Given the DOI
10.23045/jpd.2021.1.1.001, how do I find out who the registration agency was? I can find it on, say, neither CrossRef nor DataCite.
Without knowing the registration agency, it seems that I cannot access the metadata. This seems to counter the principle of "trivially discoverable" and "frictionless" data.