Hygiea: A secure, smart, privacy-preserving and interoperable Blockchain solution for the Covid-19 pandemic

TL;DR

Hygiea is a comprehensive blockchain platform designed to securely issue and verify Covid-19 certificates, while also enabling data-driven insights for pandemic management through statistical modeling.

Contribution

It introduces an end-to-end blockchain solution with a governance model for Covid-19 certificates and tools for statistical analysis, enhancing security, transparency, and decision-making.

Findings

Secure certificate issuance, verification, and revocation process

Governance model implemented via smart contracts ensuring transparency

Tools for deriving statistical models for pandemic impact analysis

Abstract

In this article we present hygiea, an end-to-end blockchain-based solution for the Covid-19 pandemic. hygiea has two main objectives. The first is to allow governments to issue Covid-19 related certificates to citizens that can be verified by designated verifiers to ensure safer workplaces. The second is to provide the necessary tools to experts and decision makers to better understand the impact of the pandemic through statistical models built on top of the data collected by the platform. This work covers all steps of the certificate issuance, verification and revocation cycles with well-defined roles for all stakeholders. We also propose a governance model that is implemented via smart contracts ensuring security, transparency and auditability. Finally, we propose techniques for deriving statistical models that can be used by decision makers.