. . . . "List nanopublications related to Discrete Global Grid Systems (DGGS)." . . . "Get nanopublications related to DGGS" . . "prefix rdfs: \r\nprefix dct: \r\nprefix np: \r\nprefix npa: \r\nprefix npx: \r\n\r\nselect distinct ?np ?pubkey ?date ?label ?title ?text \r\n ?supersedes ?supersedes_count where {\r\n graph npa:graph {\r\n ?np npa:hasValidSignatureForPublicKeyHash ?pubkey .\r\n \r\n # Valid signature and not invalidated\r\n filter not exists { \r\n ?npx npx:invalidates ?np ; \r\n npa:hasValidSignatureForPublicKeyHash ?pubkey_inv . \r\n }\r\n \r\n # This is the LATEST version (nothing supersedes it)\r\n filter not exists {\r\n ?newer_np npx:supersedes ?np ;\r\n npa:hasValidSignatureForPublicKeyHash ?pubkey_super .\r\n }\r\n \r\n # Not retracted\r\n filter not exists {\r\n ?retraction_np npx:retracts ?np ;\r\n npa:hasValidSignatureForPublicKeyHash ?pubkey_ret .\r\n }\r\n \r\n ?np dct:created ?date .\r\n ?np np:hasAssertion ?a .\r\n }\r\n \r\n # Check if this nanopub supersedes others (to show version history)\r\n optional {\r\n graph npa:graph {\r\n ?np npx:supersedes ?supersedes .\r\n }\r\n }\r\n \r\n graph ?a {\r\n ?s ?p ?o .\r\n filter(\r\n isLiteral(?o) && regex(str(?o), \"DGGS|Discrete Global Grid|discrete global grid\", \"i\")\r\n )\r\n }\r\n \r\n optional { \r\n graph ?a { ?s rdfs:label ?label }\r\n }\r\n optional { \r\n graph ?a { ?s dct:title ?title }\r\n }\r\n bind(?o as ?text)\r\n}\r\norder by desc(?date)" . . "Anne Fouilloux" . "2026-02-18T19:50:49.085Z"^^ . . . . . . . . . "RSA" . "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDWv2pJnmDsBOq8OlT1aSvYXSuWT34WOp4FYqEzdnn2F0kqzcFevBqWGZDxJWC0lqCrDEuNfp2QFyPe/+nES9dlHGYIhqPi68fwK6ZiNUotRFxXou+rjFznVvUxtCL8Ede79EBHwWN61QtwSIcU12bLoZsNPFlqQASQ93BJuKlihwIDAQAB" . "i9CFKlbcuMSgIdjmLJzJDHgSq3BT9gamvF//FqNk6AhvvK6xhU5TVR+rw+Fmwmi1XP8a1JY8/JhR2b+gNpceQz4W6hBZ4oCRrfWsTuRXkANpFxoH6vnJMNfR6unIRD++9hHLH5l1SlNU730NQiUjeO0/nTAefR6+cX4RL7dAC9s=" . . .