BUG: Error in @context cite-as does not resolve

[ptsefton]

Describe the bug The default context has a definition of cite-as which does not resolve. https://www.w3.org/ns/iana/link-relations/relation#cite-as

(I want to use this property to put a text citation on a crate so it can say "Cite this crate as ...")

URL https://www.researchobject.org/ro-crate/1.1/context.jsonld

[jmfernandez]

I can confirm it. I have fetched the contents from https://www.w3.org/ns/iana/link-relations/relation , but it does not contain a #cite-as definition in the form of triples.

[ptsefton]

I am not sure where cite-as might be being used, but this term looks like it might be a useful replacement/addition,

https://id.loc.gov/ontologies/bibframe.html#p_preferredCitation

• See #202

[ptsefton]

@stain what do you think, can we use preferredCitation from the Library of Congress?

[stain]

I think our namespace for link relations is wrong or outdated.

https://www.iana.org/assignments/link-relations/link-relations.xhtml is the official IANA registry, which defines cite-as as of RFC8574 (April 2019) but W3C's (another Standard body) https://www.w3.org/ns/iana/link-relations/relation was last updated 2 years before that in 2017.

(base) stain@xena11:~$ curl -I 'https://www.w3.org/ns/iana/link-relations/relation' | grep -i last-modified
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0 32852    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
last-modified: Tue, 24 Oct 2017 21:31:10 GMT

Pinging @hvdsomp on what may be the right namespace.

@dret also have http://webconcepts.info/concepts/link-relation/cite-as which I think is an unofficial concept registry covering http://webconcepts.info/concepts/link-relation/ -- it has a nicer landing page than the outdated W3 Turtle.

[stain]

I would prefer to stay with cite-as so we are aligned with FAIR Signposting which we are using with RO-Crate and FAIR Digital Objects (e.g. WorkfowHub)

We know http://schema.org/citation is a bit weak (it could be a citation for a paper about the thing, or a paper that the thing cites, rather than citable identifier for the RO-Crate as a digital object) and http://schema.org/identifier not specific enough unless you inspect the string for https://doi.org/ (which is too narrow on identifier providers).

BTW https://www.researchobject.org/ro-crate/1.1/metadata.html#recommended-identifiers recommends For a Root Data Entity, an identifier which is RECOMMENDED to be a https://doi.org/ URI -- using cite-as would make this explicit which is better signposting.

[stain]

http://www.iana.org/assignments/relation/cite-as redirects correctly (but not to right row), the namespace http://www.iana.org/assignments/relation/ (note no s in http) was suggested by RFC5988 and updated in RFC8288 A2 suggested for use by Atom format, -- so perhaps we should use the same here.

[hvdsomp]

The core problem here is that there is no official way to express well-defined IANA link relation types (all are strings) as URIs. This issue has come up time and again and, relatively recently, I have lamented about it in the context of work for RFC9264 Link Set, see https://github.com/ietf-wg-httpapi/linkset/issues/45#issuecomment-925865896. In 2016, it was discussed at length in https://github.com/mnot/I-D/issues/140. The pragmatic approach is the one that @stain proposes, i.e. use http://www.iana.org/assignments/relation/ as the URL to which an IANA link relation type (string) listed at https://www.iana.org/assignments/link-relations/link-relations.xhtml is appended. This is, BTW, also the approach used in COAR Notify as can be seen from the JSON-LD context file used by the protocol. In COAR Notify, FAIR Signposting is also an important building block for interoperability; hence their use of cite-as, which explicitly has the semantics desired by @ptsefton as can be seen from RFC8574.

[ptsefton]

Should we add this to the section on the root dataset in addition to setting a DOI in the identifier property?

Also do we need a way to add a TEXT statement of how to cite - something like a datacite citation not a link?

[stain]

This should be addressed by #255, awaiting review.