Secure, scalable, and interoperable healthcare data exchange using layer-2 ZK-rollups, smart contracts, and IPFS

Area of Science:

• Health Informatics
• Blockchain Technology
• Cybersecurity

Background:

• Healthcare data transactions are increasing, requiring enhanced security, transparency, and interoperability.
• Current Layer1 blockchains face limitations in transaction throughput and latency for real-time healthcare applications.
• Blockchain technology offers promise for secure and transparent healthcare data management.

Purpose of the Study:

• To develop a blockchain-based framework for efficient and secure healthcare data transactions.
• To address the limitations of Layer1 blockchains in throughput and latency for healthcare applications.
• To integrate smart contracts, zero-knowledge proofs, and off-chain storage for improved healthcare data management.

Main Methods:

• Adoption of established consensus mechanisms and a zk-Rollup verification workflow.
• Specification of healthcare-oriented configurations for security, auditability, and throughput.
• Integration of smart contracts, zero-knowledge proofs (ZKPs), and off-chain data storage.

Main Results:

• Achieved significant improvements in transaction throughput and a 57% reduction in latency.
• Reduced transaction costs by 96% in healthcare data transactions.
• Integrated cross-chain identity validation and verifiable data provenance for secure multi-chain interoperability.

Conclusions:

• The proposed system offers a highly efficient and secure solution for healthcare data transactions.
• The integration of zk-Rollups, smart contracts, and ZKPs enhances security, efficiency, and reduces costs.
• The framework enables secure interoperability across multi-chain healthcare systems, overcoming existing limitations.