. . . . "All observation FDOs about the Alpha Spike RBD variant — real-world occurrence, computational predictions, experimental DMS, and WHO classification — forming the FAIR Digital Twin knowlet for Alpha. Worked example of a single FDT." . . . "MAC FDT — Alpha variant digital twin (knowlet)" . . "PREFIX rdfs: \nPREFIX np: \nPREFIX npa: \nPREFIX npx: \nPREFIX dct: \nPREFIX fdof: \nPREFIX mac: \n\nSELECT ?obs ?type ?label WHERE {\n GRAPH npa:graph {\n ?n1 npa:hasValidSignatureForPublicKey ?pubkey .\n filter not exists {\n ?np2 npx:invalidates ?n1 ;\n npa:hasValidSignatureForPublicKey ?pubkey .\n }\n ?n1 np:hasAssertion ?a .\n }\n graph ?a {\n ?obs mac:isObservationOf .\n ?obs a ?type .\n FILTER(?type != fdof:FAIRDigitalObject)\n OPTIONAL { ?obs rdfs:label ?label . }\n }\n} ORDER BY ?type" . . "2026-05-28T10:51:46Z"^^ . . . . "MAC FDT — Alpha variant digital twin (knowlet)" . . . . . . . "RSA" . "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQD3w/IUb755GIzp3ueODYkgELhyq4Clygb5Kspge50xo+n8uC/IvXwi+ukRjEpdfX/JZ09yKUCJ2AMMr/QchrsP1Xhg9Q3fEZ4E12XqFd5jX00Qs0K5XZwjBaV8NdDTJW9I4gpcyh0cry7hSBAWHkXEkqbK+lQvR4UFAKejFq6u/wIDAQAB" . "lkNqbLQSIUwnugjlgD7vuDjG6zBgFRkpx2BSJ1p74Y8R71S62BuTkYVBwPAkz6r6KUy+0sg8NVw6VflUpoDZ93MWILiD1rmruWNPWN+VGe7r/GWztppmRQlMk84TBZAhGfTz3V1yvUTnqEx2edlLJQBjxrE3/6cik+9D2IyyGcs=" . . .