Property talk:P7457

Active discussions

Documentation

creator's signature
image of the artist's mark on the work that identifies their work
Representssignature (Q1373131)
Data typeCommons media file
Domainwork of art (Q838948)
Allowed values(?i).+\.(jpg|jpeg|jpe|png|svg|tif|tiff|gif|xcf|pdf|djvu|webp)
ExampleAdam (Q27697307)Duerermonogramm Adam 1507.jpg
The Annunciation, with Saint Emidius (Q642198)Carlo crivelli, annunciazione con sant'emidio, dalla chiesa dell'annunciazione ad ascoli 12 firma.jpg
Copper statue of Saint Thomas (Q70920699)Villach Obere Fellach Kupferblech-Statue hl Thomas Monogramm des Kunstschmieds 26062017 9883.jpg
no label (Q71127828)Wassily kandinsky, dipinto con forma bianca, 1913, 02 firma.jpg
Formatter URLhttps://commons.wikimedia.org/wiki/File:$1
Embed URLhttps://commons.wikimedia.org/wiki/File:$1
See alsoimage (P18), signature (P109), monogram (P1543), creator (P170)
Lists
Proposal discussionProposal discussion
Current uses
Total173
Main statement16997.7% of uses
Qualifier42.3% of uses
[create Create a translatable help page (preferably in English) for this property to be included here]
 
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)
 
Format “(?i).+\.(jpg|jpeg|jpe|png|svg|tif|tiff|gif|xcf|pdf|djvu|webp): value must be formatted using this pattern (PCRE syntax). (Help)
Exceptions are possible as rare values may exist.
List of this constraint violations: Database reports/Constraint violations/P7457#Format, SPARQL, SPARQL (new)
 
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)
 
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)
 
Item “creator (P170): Items with this property should also have “creator (P170)”. (Help)
Exceptions are possible as rare values may exist.
List of this constraint violations: Database reports/Constraint violations/P7457#Item P170, SPARQL, SPARQL (new)
 
Item “image (P18): Items with this property should also have “image (P18)”. (Help)
Exceptions are possible as rare values may exist.
List of this constraint violations: Database reports/Constraint violations/P7457#Item P18, SPARQL, SPARQL (new)
 
Item “location (P276): Items with this property should also have “location (P276)”. (Help)
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:

# 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". }
}

Try it!

# 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).

# 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) } 
}

Try it!

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)
Return to "P7457" page.