Looks like a QuickStatements batch in November went wrong: Wikidata:Database_reports/Constraint_violations/P4491#"Format"_violations (sample edit)
Topic on User talk:Magnus Manske
I remember that catalog for its odd IDs. The sample edit on "Paul Signac", if followed to Isidore, does indeed get a page <title> of "Publications of Signac, Paul".
Likewise, if you search on Isidore for "Paul Signac", the first hit is some king of ID card document, which links to the author, https://www.rechercheisidore.fr/search/?author=http://www.idref.fr/02713783X
The IDs I added come from scraping their site as well. So that "idref" URL appears to be their official ID.
If it's not, could you find the correct ID for "Paul Signac", then I can use the same way to replace them?
To put it another way, is it possible that the ID format constraint is a little too optimistic?
It seems. Maybe it's just ...+
The samples don't seem representative either.
Odd property. I fixed the constraint and left a note on Property talk:P4491 about the datatype.
Hello, In fact Isidore does NOT have Isidore IDs, they use the IDs from other sources, like IDRef, ORCID, etc., that's why the formatting is weird... so there is NO datatype or format, depending on the original ID they use... As much as I like Isidore (and I really love them for my searches, I think this property was probably ill-advised, as it is not properly an ID :/
So what's the "bertrand_joly" slug in https://www.rechercheisidore.fr/search/?author=bertrand_joly
sorry ? what's a "slug" ? I don't understand your question @Pigsonthewing...
In the question "what's the 'bertrand_joly' slug In the question "what's the 'bertrand_joly' slug", the specific slug referred to is the part in quote marks.
Yes, one of those: https://en.wikipedia.org/wiki/Semantic_URL#Slug
well, if I understand "slug" correctly, 'bertrand_joly' is NOT a slug, since it is necessary to the search, contrary to the slug that's for human reading... (like "#Joly,_Bertrand,_1954-...." in it's VIAF page http://viaf.org/viaf/7418560/#Joly,_Bertrand,_1954-....)
I would define it as "search string" in Isidore ;)
sorry, I do not understand the word "slug". Could you try to use another word ? (Isidore is French, and I'm too...).
Do you mean the string? well, it is used to fetch most items with bertrand_joly, but it is not an ID ; specifically, it is not Isidore's.... that's why the strings for different authors can be so different : some are ORCID's, some are IDref's, some have other origins... I even found people with more than 1...
Isidore does not create an ID for a person... they use other origin's IDs, and those can be pretty... strange... AFAIK, they simply match IDs from different origins, to link them together (so that ORCID's ID for a person will be considered as the same as it's IDref's ID, or BNF's ID)... Which one shows up in the adress bar when you click on a name is a mystery to me : the first one they got ? don't know. One sure thing : that's mapping, that's not a proper ID.
PS : just performed a search on Isidore about Bertrand Joly, and got https://www.rechercheisidore.fr/search/?author=joly_bertrand&keepParams who is still the same person :((