Health Status Platform Using Distributed Ledger for Privacy-Preserving Venue Access
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Solution Overview
Problem
There is a need for a system that securely manages and verifies health status information, particularly infectious disease test results, to ensure public health safety while respecting individual privacy, especially in scenarios like venue access control, where results must be transferable and reusable without compromising the tested individual.
Innovation Solution
A health status system and platform that utilizes a processor to receive and store biological sample data, generates a certificate of association between the user and their test results, and employs a distributed ledger system for secure and tamper-proof data management, allowing verified access to venues based on test results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If test results are made transferable and reusable across multiple venues, then the utility and efficiency of testing is improved, but the privacy risk and potential misuse of personal health information increases
Solution Approach 1:
A centralized verification server acts as an intermediary between testing facilities and venues. The server stores test results and provides verification without exposing raw personal health data to venues. Venues receive only verification status (positive/negative) rather than accessing the actual test results, thus enabling transferability while protecting privacy through the intermediary layer.
Solution Approach 2:
The system creates verified copies of test results that can be presented at multiple venues without sharing the original sensitive data. The verification server generates unique verification tokens or digital certificates that represent the test result status, allowing the same test to be validated across multiple locations without repeatedly exposing the underlying personal health information.
2Productivity
If centralized storage of test results is implemented, then the ability to verify and manage health status across venues is improved, but the security risk and target for data breaches increases
Solution Approach 1:
The system implements distributed verification where multiple servers or nodes can verify test results independently. Instead of a single centralized database that becomes a high-value target, the verification capability is distributed across multiple locations or systems, reducing the impact of a single point of failure or breach while maintaining verification efficiency.
Solution Approach 2:
Test results are pre-verified and stored in encrypted form with access controls implemented before any venue access requests. The system performs preliminary security measures including encryption, authentication protocols, and access logging before any data retrieval occurs, reducing the security burden during high-volume verification operations.
3Speed
If rapid testing is implemented at venues, then the speed of access decision-making is improved, but the complexity of the testing infrastructure increases
Solution Approach 1:
The complex testing and verification infrastructure is extracted from individual venues and consolidated into a centralized cloud-based verification server. Venues only need simple client software or web interfaces to request and receive verification status, while the complex test result validation, encryption, and security protocols are handled remotely by the centralized system, reducing on-site infrastructure complexity while maintaining rapid verification speed.
Data Source
AI summary
A health status platform includes a receiving component that receives a test result a test of a biological sample collected from a human patient. The test result includes an indication of a presence of an infectious disease in the patient, and an identification and a verification of the patient. The platform includes a certificate component that issues a certificate of origin of the biological sample; and a data merging component that cooperates with a venue access manager that controls access to a venue. The data merging component implements a distributed ledger system that stores encrypted test results of the patient and the identification and verification of the patient, and an end-to-end encryption system that receives an encrypted venue access request from a venue access manager, decrypts the access request, determines if an access request is valid, and if valid, provides an encrypted certificate of origin to the venue access manager.