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When the entitlement value "urn:mace:dir:entitlement:common-lib-terms" appears in the unscoped version of the eduPersonEntitlement attribute, the educational institution that is party to the contract is identified by the issuer element of the containing SAML assertion (this is in accordance with the existing language at http://middleware.internet2.edu/urn-mace/urn-mace-dir-entitlement.html.
When When the entitlement value "urn:mace:dir:entitlement:common-lib-terms" appears in the scoped attribute, eduPersonScopedEntitlement, the educational institution is identified by the substring after the first "@" sign.