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Related Experiment Video

Updated: Nov 29, 2025

Digital Home-Monitoring of Patients after Kidney Transplantation: The MACCS Platform

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A Privacy-Preserving Healthcare Framework Using Hyperledger Fabric.

Charalampos Stamatellis¹, Pavlos Papadopoulos¹, Nikolaos Pitropakis^1,2

¹Blockpass ID Lab, School of Computing, Edinburgh Napier University, Edinburgh EH10 5DT, UK.

Sensors (Basel, Switzerland)

|November 21, 2020

Summary

This study introduces PREHEALTH, a privacy-preserving electronic health record (EHR) management system using blockchain technology. It ensures secure, anonymous, and unlinkable storage of medical records for improved healthcare data exchange.

Keywords:

Hyperledger Fabric blockchain distributed ledger technology electronic health records management healthcare privacy-preserving

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Area of Science:

Health Informatics
Cybersecurity
Distributed Ledger Technology

Background:

Current electronic health record (EHR) management systems face significant security risks during health information exchange.
Existing approaches are vulnerable to common security attack vectors, potentially compromising sensitive medical record storage.

Purpose of the Study:

To present PREHEALTH, a novel privacy-preserving EHR management solution.
To leverage distributed ledger technology and Identity Mixer (Idemix) for secure and anonymous EHR handling.

Main Methods:

Implementation of a proof-of-concept using Hyperledger Fabric's permissioned blockchain framework.
Integration of Identity Mixer (Idemix) for robust identity management and privacy preservation.
Development of a decentralized approach for EHR storage and exchange.

Main Results:

The PREHEALTH solution effectively stores patient records while ensuring anonymity and unlinkability.
Experimental evaluations confirm the scheme's efficiency and feasibility for real-world deployment.
Demonstrated enhanced security against common attack vectors in EHR management.

Conclusions:

Blockchain-based solutions offer a secure and decentralized alternative for EHR management.
PREHEALTH provides a viable and efficient method for privacy-preserving health information exchange.
The proposed system is suitable for large-scale adoption in healthcare settings.