. . . . "This query returns all RO-Crates of which the metadata were published as nanopublications." . . . "Get RO-Crates" . . "PREFIX schema: \r\nprefix rdfs: \r\nprefix dct: \r\nprefix np: \r\nprefix npa: \r\nprefix npx: \r\n\r\nselect distinct ?np ?metadata ?obj (group_concat(distinct ?objType; separator=\" \") as ?objTypes) (group_concat(distinct ?keyword; separator=\" \") as ?keywords) ?date where {\r\n graph npa:graph {\r\n ?np npa:hasValidSignatureForPublicKey ?pubkey .\r\n filter not exists { ?npx npx:invalidates ?np ; npa:hasValidSignatureForPublicKey ?pubkey . }\r\n ?np np:hasAssertion ?a .\r\n optional { ?np rdfs:label ?label }\r\n }\r\n graph ?a {\r\n optional { ?metadata_a ?obj_a . filter(strends(str(?metadata_a), \"ro-crate-metadata.json\")) }\r\n optional { ?metadata_b ?obj_b . filter(strends(str(?metadata_b), \"ro-crate-metadata.jsonld\")) }\r\n filter(bound(?metadata_a) || bound(?metadata_b))\r\n bind(coalesce(?metadata_a, ?metadata_b) as ?metadata)\r\n bind(coalesce(?obj_a, ?obj_b) as ?obj)\r\n }\r\n optional { graph ?a { ?obj schema:datePublished ?datePublished . } }\r\n optional { graph ?a { ?obj schema:dateCreated ?dateCreated . } }\r\n bind(coalesce(?datePublished, ?dateCreated) as ?date)\r\n optional { graph ?a { ?obj a ?objType . } }\r\n optional { graph ?a { ?obj schema:keywords ?keyword . } }\r\n}\r\ngroup by ?np ?metadata ?obj ?date\r\norder by desc(?date)" . . "Tobias Kuhn" . "2025-07-18T14:15:14.570Z"^^ . . . . . . . . . . . "RSA" . "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQD4Wj537OijfOWVtsHMznuXKISqBhtGDQZfdO6pbb4hg9EHMcUFGTLbWaPrP783PHv8HMAAPjvEkHLaOHMIknqhaIa5236lfBO3r+ljVdYBElBcLvROmwG+ZGtmPNZf7lMhI15xf5TfoaSa84AFRd5J2EXekK6PhaFQhRm1IpSYtwIDAQAB" . "zcwhChP8FtO7kzhnqks5GV9eQCBol68MgW5kGqYHQ9lmxWMp+JRJO0oKMc0esO4hKw3VsiW2vRBJO4emMzMwzSwNfVpCAKo9vddIoJmv0bdlh0nyqdzF8QgPQ4EvSXAOQrN+NGyO/etgHbbyToke+tH/HnlZ5M0LVRzdpKJamsQ=" . . .