on the datacite.json include a link to the actual file download

[pvgenuchten]

when you download the metadata of a resource, the metadata file does not include a link to the actual resource which is described, this is problematic for platforms aiming to extract the metadata for reuse.

Suggested would be to include a property contentUrl on the metadata which links to the actual file download location, dataCite schema itself does not provide such a property, probably because arriving at the content via a doi is implicit for the creators, however when the metadata schema is used outside the doi platform you need to advertise this linkage somewhere, contentUrl is used elsewhere, for example at datacite metadata.

eg. https://osf.io/y7bts/metadata/?format=datacite-json would include a property:

{"contentUrl": "https://osf.io/download/y7bts/"}