. . . . "This query returns plain-text messages about Lecture 9 of Knowledge Organization." . . . "Messages about Lecture 9 of Knowledge Organization" . . "prefix rdfs: \r\nprefix dct: \r\nprefix np: \r\nprefix npa: \r\nprefix npx: \r\nprefix schema: \r\n\r\nselect ?text ?np ?user ?date where {\r\n graph npa:graph {\r\n ?np npa:hasValidSignatureForPublicKeyHash ?pubkey .\r\n filter not exists { ?npx npx:invalidates ?np ; npa:hasValidSignatureForPublicKeyHash ?pubkey . }\r\n ?np dct:created ?date .\r\n ?np dct:creator ?user .\r\n ?np np:hasAssertion ?a .\r\n }\r\n graph ?a {\r\n ?a rdfs:label ?text .\r\n ?a schema:about .\r\n }\r\n} order by desc(?date)" . . "Tobias Kuhn" . "2025-09-30T11:56:03.118Z"^^ . . . . . . . . . "RSA" . "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQD4Wj537OijfOWVtsHMznuXKISqBhtGDQZfdO6pbb4hg9EHMcUFGTLbWaPrP783PHv8HMAAPjvEkHLaOHMIknqhaIa5236lfBO3r+ljVdYBElBcLvROmwG+ZGtmPNZf7lMhI15xf5TfoaSa84AFRd5J2EXekK6PhaFQhRm1IpSYtwIDAQAB" . "DOy2gPYhu140/GGubEmqYjYk8QgMByIY5MSc2QiYceCkQ5YpXW5PO7/GhKD8///EdHjLusPahP+Lv2ISpEpTgQuBZDWTv65zD38BgAPkcIctyIX7V5Hd1QLCj43jXsjBkTlmSVc+1yVdxTU4epiCtggONJ3EWLrj+JT1STnW6h0=" . . .