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CoviChain: A Blockchain Based COVID-19 Vaccination Passport [article]

Philip Bradish, Sarang Chaudhari, Michael Clear, Hitesh Tewari
2021 arXiv   pre-print
We present a privacy-preserving framework that uses two-factor authentication to create a unique identifier that can be used to locate a person's vaccination record on a blockchain, but does not store  ...  Vaccination passports are being issued by governments around the world in order to open up their travel and hospitality sectors.  ...  In this paper we present the design of a unique blockchain based COVID-19 vaccination passport framework that fulfills the above requirements, and is versatile enough to be rolled out on a global scale  ... 
arXiv:2112.01097v3 fatcat:en4djddhtzboxgxbcjjb5j6noe