An enrolled subject may add a Claim i.e. a statement that can later be attested. Third parties may request access to view claims and attestations. Subjects may or may not consent to this request for access.
In case of an educational registry, Students can add claims of their educational history i.e. The grade studied, school name and the years of study can form a claim that a teacher acting on behalf of the institute can attest. Similarly for Teachers, the duration of service, subjects taught and designation may form a claim that the institute can attest.
In case of a Blood Donation registry, the donor can make a claim of a blood donation which can be attested by the Blood Bank.