Property talk:P7457
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creator's signature
image of the artist's mark on the work that identifies their work
image of the artist's mark on the work that identifies their work
[create Create a translatable help page (preferably in English) for this property to be included here]
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Link to Commons namespace “File”: this property should contain a well-formed link to an existing page on Wikimedia Commons. (Help) List of this constraint violations: Database reports/Constraint violations/P7457#Commons link, hourly updated report, SPARQL (new)
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Format “ Exceptions are possible as rare values may exist. (?i).+\.(jpg|jpeg|jpe|png|svg|tif|tiff|gif|xcf|pdf|djvu|webp)”: value must be formatted using this pattern (PCRE syntax). (Help)List of this constraint violations: Database reports/Constraint violations/P7457#Format, SPARQL, SPARQL (new) |
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Type “work of art (Q838948)”: element must contain property “instance of (P31)” with classes “work of art (Q838948)” or their subclasses (defined using subclass of (P279)). (Help) Exceptions are possible as rare values may exist. List of this constraint violations: Database reports/Constraint violations/P7457#type Q838948, SPARQL, SPARQL (new) |
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Scope is as main value (Q54828448): the property must be used by specified way only (Help) List of this constraint violations: Database reports/Constraint violations/P7457#scope, hourly updated report, SPARQL, SPARQL (new)
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Exceptions are possible as rare values may exist. List of this constraint violations: Database reports/Constraint violations/P7457#Item P170, SPARQL, SPARQL (new) |
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Exceptions are possible as rare values may exist. List of this constraint violations: Database reports/Constraint violations/P7457#Item P18, SPARQL, SPARQL (new) |
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Exceptions are possible as rare values may exist. List of this constraint violations: Database reports/Constraint violations/P7457#Item P276, SPARQL, SPARQL (new) |
Is this property needed?Edit
Wouldn't somework inscription (P1684) somesignature / image (P18) creator's signature image do in a more general way? That's how I've expressed this so far I think. --Marsupium (talk) 20:21, 24 October 2019 (UTC)
- That seems to be fairly rare and would require an additional qualifier to ensure that it's actually the signature. --- Jura 18:12, 30 October 2019 (UTC)
Related queries: Who could be "J.B. 1670" and "D.K. 1964"?Edit
To answer a question by Herzi Pinki on Wikidata:Request a query:
- Items used: visual artist (Q3391743)
- Properties used: date of birth (P569) , date of death (P570) , given name (P735) , native label (P1705) , family name (P734) , occupation (P106) , subclass of (P279) , signature (P109)
# search for artist J.B. active in 1670
SELECT DISTINCT ?item ?d1 ?d2 ?nl0 ?nl1 ?itemDescription ?sig
WHERE
{
?item wdt:P569 ?d1 ; wdt:P570 ?d2 .
hint:Prior hint:rangeSafe true .
FILTER( ?d1 > "1600-00-00"^^xsd:dateTime &&
?d2 > "1670-00-00"^^xsd:dateTime &&
?d1 < "1671-00-00"^^xsd:dateTime
)
?item wdt:P735 / wdt:P1705 ?nl0 . FILTER( REGEX(?nl0, "^J" ) )
?item wdt:P734 / wdt:P1705 ?nl1 . FILTER( REGEX(?nl1, "^B" ) )
?item wdt:P106/wdt:P279* wd:Q3391743 .
hint:Prior hint:gearing "forward".
OPTIONAL { ?item wdt:P109 ?sig }
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
- Items used: visual artist (Q3391743)
- Properties used: date of birth (P569) , date of death (P570) , given name (P735) , native label (P1705) , family name (P734) , occupation (P106) , subclass of (P279) , signature (P109)
# search for artist D.K. active in 1964
SELECT DISTINCT ?item ?d1 ?d2 ?nl0 ?nl1 ?itemDescription ?sig
WHERE
{
?item wdt:P569 ?d1 ; wdt:P570 ?d2 .
hint:Prior hint:rangeSafe true .
FILTER( ?d1 > "1880-00-00"^^xsd:dateTime &&
?d2 > "1964-00-00"^^xsd:dateTime &&
?d1 < "1944-00-00"^^xsd:dateTime
)
?item wdt:P735 / wdt:P1705 ?nl0 . FILTER( REGEX(?nl0, "^D" ) )
?item wdt:P734 / wdt:P1705 ?nl1 . FILTER( REGEX(?nl1, "^K" ) )
?item wdt:P106/wdt:P279* wd:Q3391743 .
hint:Prior hint:gearing "forward".
OPTIONAL { ?item wdt:P109 ?sig }
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" }
}
Try it! Sample image for the second query: image (see bottom right corner).
- Items used: visual artist (Q3391743)
- Properties used: occupation (P106) , subclass of (P279) , given name (P735) , family name (P734)
# completeness P735/P734 for visual artists
SELECT
(COUNT(DISTINCT ?item) as ?all)
(COUNT(DISTINCT ?hasP735) as ?P735)
(COUNT(DISTINCT ?hasP734) as ?P734)
WHERE
{
?item wdt:P106/wdt:P279* wd:Q3391743 .
hint:Prior hint:gearing "forward".
OPTIONAL { ?item wdt:P735 [] . BIND(?item as ?hasP735) }
OPTIONAL { ?item wdt:P734 [] . BIND(?item as ?hasP734) }
}
There queries require:
- an item for the artist.
- item has P569 and P570
- item has P735 and P734
- ideally a P109 statement
--- Jura 18:02, 2 January 2021 (UTC)
this seems to be presenting a result, feel free to remove the disk after everything is cleared. I do not use creator's signature (P7457) for the artist, but think the description reserves it for the artwork. Which is a pity, as I feel it would be perfectly ok, to use it also for the artist (I have started c:Signatures of artists from Austria). And, your solution does not care for unknown dates of birth and artists still living. --Herzi Pinki (talk) 18:14, 2 January 2021 (UTC)
- Indeeed, fixed ;) --- Jura 18:20, 2 January 2021 (UTC)