@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix this: <http://purl.org/np/RA3abHjDRJb6g1o50JNxxhUg94rJ3DhRCE1ZPsT7cr-L8> .
@prefix sub: <http://purl.org/np/RA3abHjDRJb6g1o50JNxxhUg94rJ3DhRCE1ZPsT7cr-L8#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix prov: <http://www.w3.org/ns/prov#> .
@prefix np: <http://www.nanopub.org/nschema#> .
@prefix orcid: <https://orcid.org/> .
@prefix nt: <https://w3id.org/np/o/ntemplate/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@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 {
  sub:assertion a nt:AssertionTemplate;
    rdfs:label "Expressing that you know somebody";
    nt:hasStatement sub:st1 .
  
  sub:person a nt:UriPlaceholder;
    rdfs:label "ORCID identifier of the person you know";
    nt:hasPrefix "https://orcid.org/";
    nt:hasRegex "[0-9]{4}-[0-9]{4}-[0-9]{4}-[0-9]{3}[0-9X]" .
  
  sub:st1 a rdf:Statement;
    rdf:object sub:person;
    rdf:predicate foaf:knows;
    rdf:subject nt:CREATOR .
  
  foaf:knows rdfs:label "know" .
}

sub:provenance {
  sub:assertion prov:wasAttributedTo orcid:0000-0002-1267-0234 .
}

sub:pubinfo {
  sub:sig npx:hasAlgorithm "RSA";
    npx:hasPublicKey "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCwUtewGCpT5vIfXYE1bmf/Uqu1ojqnWdYxv+ySO80ul8Gu7m8KoyPAwuvaPj0lvPtHrg000qMmkxzKhYknEjq8v7EerxZNYp5B3/3+5ZpuWOYAs78UnQVjbHSmDdmryr4D4VvvNIiUmd0yxci47dTFUj4DvfHnGd6hVe5+goqdcwIDAQAB";
    npx:hasSignature "It/D54fI7wHKJXrot563tfdwdWVxO/lxZFOLB5Gz5MoBQQv9Sl/bhxWUST+hM6IZnLYxPcgFKjZiuaN74JhgSh8XHkh3r7bU7eeqh1dknd65to8ePYganov8sQ0Vt8w7Ca9/XjYSqBYzcGxQ/uXC2BElaZROoqkj/HYM4vOzxik=";
    npx:hasSignatureTarget this: .
  
  this: dcterms:created "2020-03-30T08:43:44.176+02:00"^^xsd:dateTime;
    dcterms:creator orcid:0000-0002-1267-0234 .
}