@prefix this: <https://w3id.org/np/RArXo9DjiKrScdd6A_NnbrL3kC0BzZEVBDp2idfcx6LTk> .
@prefix sub: <https://w3id.org/np/RArXo9DjiKrScdd6A_NnbrL3kC0BzZEVBDp2idfcx6LTk/> .
@prefix np: <http://www.nanopub.org/nschema#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix orcid: <https://orcid.org/> .
@prefix prov: <http://www.w3.org/ns/prov#> .
@prefix mac: <https://w3id.org/spaces/mac/r/ontology/> .
@prefix npx: <http://purl.org/nanopub/x/> .

sub:Head {
  this: a np:Nanopublication;
    np:hasAssertion sub:assertion;
    np:hasProvenance sub:provenance;
    np:hasPublicationInfo sub:pubinfo .
}

sub:assertion {
  mac:Observation a owl:Class;
    dct:partOf mac:MAC-Ontology;
    rdfs:comment "An abstract parent class for all observation-layer FDOs in a MAC FAIR Digital Twin. Concrete subclasses include `mac:RealWorldOccurrence` (Type 2), `mac:ComputationalPrediction` and its sub-hierarchy (Types 3–6), `mac:ExperimentalObservation` and its sub-hierarchy (Type 7), and `mac:WHOVariantClassification` (Type 8). Every member links to the FDT's anchor (a `mac:SpikeRBDVariant`) via `mac:isObservationOf`. This class is abstract: it carries no direct instances; all instances belong to one of its concrete subclasses.";
    rdfs:label "Observation" .
}

sub:provenance {
  sub:assertion dct:created "2026-05-22"^^xsd:date;
    prov:wasAttributedTo orcid:0000-0001-8888-635X .
}

sub:pubinfo {
  this: dct:created "2026-05-26T12:32:10Z"^^xsd:dateTime;
    dct:creator orcid:0000-0001-8888-635X;
    dct:license <https://creativecommons.org/licenses/by/4.0/>;
    rdfs:label "Vocabulary term: mac:Observation" .
  
  sub:sig npx:hasAlgorithm "RSA";
    npx:hasPublicKey "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQD3w/IUb755GIzp3ueODYkgELhyq4Clygb5Kspge50xo+n8uC/IvXwi+ukRjEpdfX/JZ09yKUCJ2AMMr/QchrsP1Xhg9Q3fEZ4E12XqFd5jX00Qs0K5XZwjBaV8NdDTJW9I4gpcyh0cry7hSBAWHkXEkqbK+lQvR4UFAKejFq6u/wIDAQAB";
    npx:hasSignature "InmsnytLa1UFQsURADoQbSxaKU12m5JSDJQuWbxp7XRQs3A1FLH0kI+SEJv12HMrVHK5M2tSHCLIa5dfvIm5FDNrJ3x5cTEDFzHxuW3ghI1fqZdhMipj3kxVHy0AsdRcavKE5xP8Gyjt6CZ5YrUXvoA459hn4PR3yzC9j4RiHhI=";
    npx:hasSignatureTarget this:;
    npx:signedBy orcid:0000-0001-8888-635X .
}