Encrypted, Anonymized System for Protected Health Information Verification Built via Proof of Stake. (arXiv:2205.02753v1 [cs.CR])

Digital Health Passes (DHP), systems of digitally validating quarantine and
vaccination status such as the New York IBM Excelsior Pass, demonstrate a
lawful means to approach some benefits offered by "true elimination" treatment
strategies-which focus on the complete elimination of cases instead of
investing more in controlling the progression of the disease-of COVID-19.
Current implementations of DHPs require region-based control and central
storage of Protected Health Information (PHI)-creating a challenge to
widespread use across different jurisdictions with incompatible data management …

encrypted health information protected health information system