Supply Chain Authentication for Vaccine Passport Using Blockchain

The COVID-19 pandemic has led to the creation of vaccination passports as a means of verifying an individual’s vaccination status for travel and access to certain services. The validity of immunization records and supply chain procedures, however, are significant issues. The supply chain for vaccination passports has been called for to be made more secure and transparent using blockchain technology. To ensure safe and effective supply chain management, this article suggests a blockchain-based authentication mechanism for vaccination passports. The issuer, the prover, and the verifier will be the system’s three key actors. The issuer will be in charge of producing inventory tokens and providing immunization certificates. The prover will verify the authenticity of the vaccination supply chain, and the verifier will ensure that the inventory token is legitimate. The proposed system will enhance transparency, security, and efficiency in the supply chain for vaccination passports, thereby improving the trustworthiness of vaccination records and facilitating safe travel during the pandemic.