The Logging Component of the European Health Data Space (EHDS) Regulation: A Technical Perspective

Area of Science:

• Health Informatics
• Data Security
• Blockchain Technology

Background:

• Growing demand for citizen access and control over personal health data.
• The European Health Data Space (EHDS) regulation proposes a Logging Component (LC) for secure health data access.
• Existing health data management systems require enhanced transparency and accountability.

Purpose of the Study:

• To analyze the five proposed elements of the EHDS Logging Component.
• To explore the role of these elements in ensuring accountability and compliance in health data management.
• To investigate the integration of advanced technologies, such as Distributed Ledger Technology (DLT), within the LC framework.

Main Methods:

• Analysis of the EHDS Logging Component's proposed elements: data accessor/subject identification, data categorization, temporal logging, and data origin tracking.
• Experimentation with hybrid DLT to develop a system for immutable access log storage and decentralized access control lists (ACLs).
• Conceptualization and proposal of a 'purpose logging' element to address identified shortcomings.

Main Results:

• The EHDS Logging Component's five elements are crucial for enhanced accountability and compliance.
• DLT can effectively support data origin tracking and secure access log management.
• The proposed 'purpose logging' element is critical for achieving broader health data sharing objectives.

Conclusions:

• The Logging Component serves as a framework for integrating advanced technologies like DLT, fostering trust and privacy in healthcare data sharing.
• Successful implementation of the LC's core elements, augmented by proposed additions like purpose logging, is vital for secure and harmonized European health data exchange.
• The study highlights the potential of the LC and DLT for improving global electronic health record (EHR) systems.