<div dir="ltr">I am confused by the comment "all PIDs can in principle be resolved by all resolvers". As far as I can see this is not true. <a href="https://orcid.org/">https://orcid.org/</a> cannot resolve a DOI; <a href="https://ror.org">https://ror.org</a> cannot resolve an ORCID; I can't find any general resolver for ISBNs at all; and so on. Each type of PID has its own resolving scheme, and the resolver is distinct from the PID (because, of course, the resolver URLs and protocols may change, but the PID itself must not). <div><br></div><div>Those resolvers are starting to talk to each (see the <a href="https://commons.datacite.org/">DataCite Commons</a> project for an example that ties DOIs to ORCIDs and RORs by following PIDs in metadata and querying the respective databases - and experience the non-trivial wait time for even a simple query response to compile), but they cannot replace each other. This is why the DataCite metadata schema requires a user to specify the PID type for each PID in the metadata.<div><br clear="all"><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">-Anne.</div></div></div><br></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Nov 8, 2021 at 1:45 PM Yan Grange <<a href="mailto:grange@astron.nl">grange@astron.nl</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi Semantics people,<br>
<br>
What do you think of the following concept for a UCD? Looking forward to <br>
your feedback!<br>
<br>
==============8<==============<br>
<br>
Vocabulary: <br>
<a href="https://raw.githubusercontent.com/ivoa-std/UCDList/v1.4-EN/ucd-list.txt" rel="noreferrer" target="_blank">https://raw.githubusercontent.com/ivoa-std/UCDList/v1.4-EN/ucd-list.txt</a><br>
Author: <a href="mailto:grange@astron.nl" target="_blank">grange@astron.nl</a><br>
Date: 2021-11-08<br>
New Term: meta.ref.pid<br>
Action: Addition<br>
Label: Persistent Identifier<br>
<br>
Description: Persistent Identifier (dereferenceable)<br>
<br>
Rationale: The current UCD list does contain a way to refer to <br>
persistent identifiers of type DOI (meta.ref.doi). However other <br>
persistent identifiers (e.g. EPIC PIDs, ORCIDs, etc) are not covered by <br>
this. Since all PIDs can in principle be resolved by all resolvers, no <br>
functional difference should exist between them and therefore I propose <br>
to inculde a general pid term in stead of having one entry per PID type. <br>
For backwards compatibility I propose not to change anything to <br>
meta.ref.doi and keep it in place.<br>
<br>
==============8<==============<br>
<br>
Cheers,<br>
<br>
Yan Grange<br>
<br>
-- <br>
My working schedule likely differs from yours. Do not feel compelled to read or reply to my email(s) outside your office hours.<br>
<br>
Yan Grange<br>
SDC software developer<br>
ASTRON<br>
het Nederlands instituut voor radioastronomie<br>
the Netherlands Institute for Radio Astronomy<br>
Oude Hogeveensedijk 4<br>
Kamer/room 1.58<br>
7991 PD, Dwingeloo<br>
Nederland/The Netherlands<br>
Tel.: (+31) (0)521595796<br>
Fax : (+31) (0)521595101<br>
Skype: ygg-skypename<br>
<br>
</blockquote></div>