EBSCO Link Resolver (Caltech instance)
Caltech Library's OpenURL link resolver is an EBSCO tenancy — instance `l7ubco` on the shared host resolver.ebsco.com — referenced from Caltech's own library pages. Recorded as a relationship only — no EBSCO contract is saved under this institution. No baseURL is emitted: the resolver returns 404/400 to requests without OpenURL parameters, so the endpoint could not be confirmed by a clean 200 and a dead pointer would read as a claim. Confidence medium — the instance is evidenced only from Caltech's own markup.