sub:assertion {
  sub:get-creator-pubkeys dct:description "This query returns all creator / pubkey pairs, independent of their approval status." ;
    dct:license <http://www.apache.org/licenses/LICENSE-2.0> ;
    a <https://w3id.org/kpxl/grlc/grlc-query> ;
    rdfs:label "Get all creator / pubkey pairs" ;
    <https://w3id.org/kpxl/grlc/endpoint> <https://w3id.org/np/l/nanopub-query-1.1/repo/meta> ;
    <https://w3id.org/kpxl/grlc/sparql> """prefix np: <http://www.nanopub.org/nschema#>
prefix npx: <http://purl.org/nanopub/x/>
prefix npa: <http://purl.org/nanopub/admin/>
prefix dct: <http://purl.org/dc/terms/>

select distinct ?creator ?pubkey where {
  graph npa:graph {
    ?np npa:hasValidSignatureForPublicKey ?pubkey .
    ?np dct:creator ?creator .
    filter(!strstarts(str(?creator), str(?np)))
  }
}
order by ?creator""" .
}