Clinical Report: SENTINEL-Chain: A Blockchain-Based Framework for Secure and Privacy-Respecting Healthcare Data Sharing
Overview
SENTINEL-Chain is a blockchain-integrated framework designed to enhance the privacy and utility of electronic health records (EHRs) during data sharing. It achieves a privacy score of 79.9% and utility of 98.2%, outperforming existing methods significantly.
Background
The digitization of healthcare has led to vast amounts of electronic health records (EHRs), which are essential for research and analytics but pose significant privacy risks. Traditional privacy-preserving methods often compromise the analytical utility of data, making it challenging to maintain the integrity of clinical correlations. Addressing these issues is crucial for advancing healthcare analytics while ensuring patient confidentiality.
Data Highlights
Metric
Score
Privacy Score
79.9%
Utility Score
98.2%
Combined Score
178.1%
Correlation Fidelity (Claim Amount)
99.9%
Correlation Fidelity (Length of Stay)
99.6%
Correlation Fidelity (Age)
99.7%
Correlation Fidelity (Severity Indices)
99.1%
Transaction Processing
9,988 transactions in 101 blocks
Throughput
3,600 records/second
Key Findings
SENTINEL-Chain combines six privacy mechanisms to enhance data sharing security.
It achieves a combined privacy and utility score that exceeds existing baselines by 4%-95%.
The framework demonstrates 100% resistance to record linkage attacks.
Correlation fidelity for key metrics remains above 99%.
Smart contract gas estimation indicates a per-record registration cost of 61,895 gas units.
Clinical Implications
The SENTINEL-Chain framework provides a robust solution for secure EHR sharing, balancing privacy and utility effectively. Its high correlation fidelity ensures that data remains clinically relevant for predictive modeling and analysis.
Conclusion
SENTINEL-Chain represents a significant advancement in the secure sharing of healthcare data, addressing critical gaps in privacy and utility while leveraging blockchain technology.
