CoVID-19 Vaccination Certificate Supply Verification Based on Blockchain

Abstract

The emergence of the pandemic, Covid-19, impacted the worldwide economy. The daily scientific development helped in creating a vaccine against the virus. In order to limit the spread of the virus, government authorities are making it mandatory for vaccination certificates for people to run businesses or access public facilities like theaters, restaurants, etc. The government mandate of vaccine certificates compelled people to purchase fake certificates and fake entities to provide fake certificates. This paper provides an application-based blockchain solution for registering vaccinating authorities to vaccinate and provides relevant vaccine certificates that anyone can verify in no time. Additionally, analysis of data retrieving from the blockchain is provided because the data reading will be happening by thousands of authorities. The code for the prototype application is available on Github.