sub:assertion {
  sub:get-top-creators-last30d dct:description "This query returns the 10 creators who created most nanopublications during the last 30 days." ;
    dct:license <http://www.apache.org/licenses/LICENSE-2.0> ;
    a <https://w3id.org/kpxl/grlc/grlc-query> ;
    rdfs:label "Get the top-10 creators of the last 30 days" ;
    <https://w3id.org/kpxl/grlc/endpoint> <https://w3id.org/np/l/nanopub-query-1.1/repo/last30d> ;
    <https://w3id.org/kpxl/grlc/sparql> """#+ endpoint: https://query.knowledgepixels.com/repo/last30d

prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>
prefix np: <http://www.nanopub.org/nschema#>
prefix npa: <http://purl.org/nanopub/admin/>
prefix npx: <http://purl.org/nanopub/x/>
prefix xsd: <http://www.w3.org/2001/XMLSchema#>
prefix dct: <http://purl.org/dc/terms/>
prefix prov: <http://www.w3.org/ns/prov#>
prefix foaf: <http://xmlns.com/foaf/0.1/>

select distinct ?userid (count(distinct ?np) as ?count) where {
  { graph npa:graph {
    ?np npa:hasValidSignatureForPublicKey ?pubkey .
    ?np dct:creator ?userid .
  } }
  union
  {
    graph npa:graph {
      ?np npa:hasValidSignatureForPublicKey ?pubkey .
      ?np np:hasAssertion ?assertion .
      ?np np:hasProvenance ?prov .
    }
    graph ?prov {
      ?assertion prov:wasAttributedTo ?userid .
    }
  }
  filter(strstarts(str(?userid), \"https://orcid.org/\"))
}
group by ?userid
order by desc(?count)
limit 10""" .
}