@prefix this: <https://w3id.org/np/RAtyWNniqnUE2SiayDqIIJaRY7WzU7G9NEvvVX4vDd8Cs> .
@prefix sub: <https://w3id.org/np/RAtyWNniqnUE2SiayDqIIJaRY7WzU7G9NEvvVX4vDd8Cs/> .
@prefix np: <http://www.nanopub.org/nschema#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix nt: <https://w3id.org/np/o/ntemplate/> .
@prefix npx: <http://purl.org/nanopub/x/> .
@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 foaf: <http://xmlns.com/foaf/0.1/> .

<https://w3id.org/np/RAtyWNniqnUE2SiayDqIIJaRY7WzU7G9NEvvVX4vDd8Cs> a np:Nanopublication;
  np:hasAssertion sub:assertion;
  np:hasProvenance sub:provenance;
  np:hasPublicationInfo sub:pubinfo;
  dct:created "2026-06-08T18:59:23Z"^^xsd:dateTime;
  dct:creator orcid:0000-0002-1267-0234;
  dct:license <https://creativecommons.org/licenses/by/4.0/>;
  npx:embeds sub:get-user-introductions;
  npx:supersedes <https://w3id.org/np/RAGkIvyhKGGNWD3maCjMrLreCV2L5_nSM_91OHV46iRGU>;
  nt:wasCreatedFromProvenanceTemplate <https://w3id.org/np/RA7lSq6MuK_TIC6JMSHvLtee3lpLoZDOqLJCLXevnrPoU>;
  nt:wasCreatedFromPubinfoTemplate <https://w3id.org/np/RA0J4vUn_dekg-U1kK3AOEt02p9mT2WO03uGxLDec1jLw>,
    <https://w3id.org/np/RAoTD7udB2KtUuOuAe74tJi1t3VzK0DyWS7rYVAq1GRvw>, <https://w3id.org/np/RAukAcWHRDlkqxk7H2XNSegc1WnHI569INvNr-xdptDGI>;
  nt:wasCreatedFromTemplate <https://w3id.org/np/RAEFAt-QcFK0ZhqfvlsmS10BnzGJA0xwOICZXkO-ai87k> .

sub:get-user-introductions a <https://w3id.org/kpxl/grlc/grlc-query>;
  dct:description "Returns the introduction nanopublications of a given user (creation date, key location, declared public-key hashes), plus session-relative action targets from the viewer's local key (?__LOCALPUBKEY_multi) and site URL (?__SITEURL_multi): conditional retract/derive targets that are also owner-gated (?_user_iri = ?__CURRENTUSER_multi_iri, so the actions appear only on the viewer's own page), and the local-key bundle (key string, short name, site URL) used to prefill the derive action. The retract/derive/local columns are action-mapping data (hidden from display by the result builders).";
  dct:license <http://www.apache.org/licenses/LICENSE-2.0>;
  rdfs:label "Get user introductions";
  <https://w3id.org/kpxl/grlc/endpoint> <https://w3id.org/np/l/nanopub-query-1.1/repo/type/77757cabf6184c51c20b8b0fe5dc5e1365b7f628448335184ad54319a0affdfc>;
  <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 (max(?date0) as ?date) (sample(str(?keyLocation)) as ?location)
       (group_concat(distinct ?keyHash; separator=\", \") as ?keys) ?np (\"^\" as ?np_label)
       (if(max(?isOwner) > 0 && sum(?isLocal) > 0 && ?localCount > 1, str(?np), \"\") as ?retract_target)
       (if(max(?isOwner) > 0 && sum(?isLocal) = 0 && ?localCount = 0 && max(?lpkBound) > 0, str(?np), \"\") as ?derive_target)
       (sample(?lpk) as ?local_pubkey) (sample(?lpkShort) as ?local_pubkey_short)
       (sample(?siteUrl) as ?site_url)
where {
  values ?__LOCALPUBKEY_multi {}
  values ?__SITEURL_multi {}
  values ?__CURRENTUSER_multi_iri {}
  graph npa:graph {
    ?np npa:hasValidSignatureForPublicKey ?introPubkey .
    filter not exists { ?npx npx:invalidates ?np ; npa:hasValidSignatureForPublicKey ?introPubkey . }
    ?np dct:created ?date0 .
    ?np np:hasAssertion ?a .
  }
  graph ?a {
    ?keydeclaration npx:declaredBy ?_user_iri .
    ?keydeclaration npx:hasPublicKey ?pubkey .
    optional { ?keydeclaration npx:hasKeyLocation ?keyLocation . }
    bind(substr(sha256(?pubkey), 1, 10) as ?keyHash)
  }
  bind(coalesce(if(str(?pubkey) = str(?__LOCALPUBKEY_multi), 1, 0), 0) as ?isLocal)
  bind(if(bound(?__LOCALPUBKEY_multi), 1, 0) as ?lpkBound)
  bind(coalesce(if(?_user_iri = ?__CURRENTUSER_multi_iri, 1, 0), 0) as ?isOwner)
  bind(coalesce(str(?__LOCALPUBKEY_multi), \"\") as ?lpk)
  bind(if(strlen(?lpk) >= 45, concat(substr(?lpk, 1, 1), \"..\", substr(?lpk, 41, 5), \"..\"), \"\") as ?lpkShort)
  bind(coalesce(str(?__SITEURL_multi), \"\") as ?siteUrl)
  {
    select (count(distinct ?lnp) as ?localCount) where {
      values ?__LOCALPUBKEY_multi {}
      graph npa:graph {
        ?lnp npa:hasValidSignatureForPublicKey ?lk2 .
        filter not exists { ?lnpx npx:invalidates ?lnp ; npa:hasValidSignatureForPublicKey ?lk2 . }
        ?lnp np:hasAssertion ?la .
      }
      graph ?la { ?lkd npx:declaredBy ?_user_iri ; npx:hasPublicKey ?lpubkey . }
      filter(coalesce(str(?lpubkey) = str(?__LOCALPUBKEY_multi), false))
    }
  }
}
group by ?np ?localCount
order by desc(max(?date0))""" .

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

orcid:0000-0002-1267-0234 foaf:name "Tobias Kuhn" .

sub:sig npx:hasAlgorithm "RSA";
  npx:hasPublicKey "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCwUtewGCpT5vIfXYE1bmf/Uqu1ojqnWdYxv+ySO80ul8Gu7m8KoyPAwuvaPj0lvPtHrg000qMmkxzKhYknEjq8v7EerxZNYp5B3/3+5ZpuWOYAs78UnQVjbHSmDdmryr4D4VvvNIiUmd0yxci47dTFUj4DvfHnGd6hVe5+goqdcwIDAQAB";
  npx:hasSignature "BOipzAKi/Sfv/qzzSessJeiKaQODfkFqbBXeVaWb8plilZTRpznkoQreHl90OCgkYcm50z/dXVgZjPmgC7Xu/xfkJJrynyIiaQKOjeryWFkPce8TQjqw86uNHY820PK3wdDpSDXCwcLWcWPJirvx5N61XssrqLKG/19LXO4f5K0=";
  npx:hasSignatureTarget <https://w3id.org/np/RAtyWNniqnUE2SiayDqIIJaRY7WzU7G9NEvvVX4vDd8Cs>;
  npx:signedBy orcid:0000-0002-1267-0234 .