GakuNin Academic Access Management Federation
Membership of GakuNin (学術認証フェデレーション), the Japanese national academic identity federation operated by the National Institute of Informatics. The aggregate at metadata.gakunin.nii.ac.jp carries 650 entities, four of them Hokkaido University's — one identity provider and three service providers (RISS, WeBWorK, MDS Platform), all on hokudai.ac.jp hosts. Recorded as a relationship: the federation aggregate is NII's document, shared by definition, and the identity provider behind Hokkaido's entry is the university's own.