{"entities":{"P31":{"pageid":1205,"ns":122,"title":"Property:P31","lastrevid":9040,"modified":"2026-07-30T11:34:46Z","type":"property","datatype":"string","id":"P31","labels":{"en":{"language":"en","value":"DOI"}},"descriptions":{"en":{"language":"en","value":"serial code used to uniquely identify physical, digital or abstract objects like scientific papers"}},"aliases":{"en":[{"language":"en","value":"Digital Object Identifier"}]},"claims":{}}}}