The PID Graph: what a work points at, and why

SELECT ?from ?type ?to ?assertedBy ?title WHERE {
  ?rel a dcite:PidRelation ;
       dcite:relationSubject ?from ;
       dcite:relationType ?type ;
       dcite:relationObject ?to .
  OPTIONAL { ?rel dcite:assertedBy ?assertedBy }

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The query

PREFIX dcite: <https://w3id.org/rete/datacite#> PREFIX dct: <http://purl.org/dc/terms/> SELECT ?from ?type ?to ?assertedBy ?title WHERE { ?rel a dcite:PidRelation ; dcite:relationSubject ?from ; dcite:relationType ?type ; dcite:relationObject ?to . OPTIONAL { ?rel dcite:assertedBy ?assertedBy } OPTIONAL { ?from dcite:title ?title } } LIMIT 25

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