InCommon federation registration (AUB IdP)
AUB's identity provider is registered in InCommon, the United States research and education identity federation, and is resolvable through the InCommon per-entity metadata (MDQ) service. Probed 2026-09-01: the MDQ endpoint returns an 11KB signed EntityDescriptor for https://idp.aub.edu.lb/idp/shibboleth with mdrpi registrationAuthority https://incommon.org, OrganizationDisplayName "American University of Beirut", and two entity categories asserted — https://refeds.org/sirtfi (the REFEDS security incident response trust framework) and http://id.incommon.org/category/registered-by-incommon. A federation is shared by definition; the IdP behind this entry is AUB's, which is why the relationship is recorded rather than the federation's contract.