list of famous paintings + thumbnails

gistfile1.sparql

SELECT ?item ?itemLabel ?thumb ?catcode WHERE { ?item p:P528 [ pq:P972 wd:Q41634361 ; ps:P528 ?catcode]. 
                                                  ?item wdt:P18 ?picture . 
                                               
  BIND(REPLACE(wikibase:decodeUri(STR(?picture)), "http://commons.wikimedia.org/wiki/Special:FilePath/", "") as ?fileName) .
  BIND(REPLACE(?fileName, " ", "_") as ?safeFileName)
  BIND(MD5(?safeFileName) as ?fileNameMD5) .
  BIND(CONCAT("https://upload.wikimedia.org/wikipedia/commons/thumb/", SUBSTR(?fileNameMD5, 1, 1), "/", SUBSTR(?fileNameMD5, 1, 2), "/", ?safeFileName, "/650px-", ?safeFileName) as ?thumb)
                                                 
                                                  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
                                                } ORDER BY xsd:integer(?catcode)