Media File Provenance Metadata for Partial Trust Evaluation
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Solution Overview
Problem
Existing trust establishment protocols for electronic media files only indicate compliance and do not provide information on non-compliance, partial compliance, or past compliance, making it difficult for users to assess the authenticity and history of the files.
Innovation Solution
A computer-implemented method that evaluates the provenance of electronic media files by determining if they meet predetermined trust criteria, generating metadata indicating compliance or non-compliance, and storing this metadata in a secure data repository like a blockchain, allowing users to track unauthorized alterations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a strict trust establishment protocol is implemented to ensure file authenticity, then reliability of provenance verification is improved, but information completeness deteriorates because non-compliant or partially compliant files cannot be evaluated
Solution Approach 1:
The system performs partial compliance checking by evaluating files against multiple trust criteria at different levels. Instead of requiring full protocol compliance, the system checks for partial adherence and generates metadata indicating the degree of compliance (fully compliant, partially compliant, or non-compliant), thus preserving information about files that would otherwise be rejected
Solution Approach 2:
The system changes the evaluation parameters from a binary compliant/non-compliant decision to a multi-level assessment using multiple trust criteria. By introducing intermediate compliance states and evaluating different aspects of file provenance separately, the system maintains both reliability for strictly compliant files and information completeness for partially compliant files
2Loss of information
If multiple trust criteria are evaluated to provide comprehensive provenance information, then information completeness is improved, but device complexity increases
Solution Approach 1:
The evaluation system is segmented into multiple independent trust criteria (first trust criterion, second trust criterion, etc.), each assessing a specific aspect of file provenance. This modular approach allows the system to evaluate comprehensive provenance information through separate, manageable criteria rather than a single complex evaluation mechanism
Solution Approach 2:
Metadata serves as an intermediary that captures and transmits the results of multiple trust criterion evaluations. The metadata structure organizes compliance information from different criteria in a standardized format, simplifying the complexity of multi-criteria evaluation by providing a clear, structured output that represents the aggregate assessment
3Measurement precision
If a multi-level trust criterion evaluation system is implemented, then provenance information quality is improved, but processing time increases
Solution Approach 1:
The system performs preliminary evaluation by checking files against trust criteria in a structured sequence (first trust criterion, then second trust criterion if needed). This staged approach allows for quick rejection of clearly non-compliant files while providing detailed assessment only when necessary, thus improving precision without always incurring the full processing time cost
Data Source
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AI summary
The invention provides a computer-implemented method of evaluating the provenance of an electronic media file, the computer-implemented method comprising: receiving the electronic media file from a source; determining whether the electronic media file meets a first trust criterion; in response to a determination that the electronic media file does not meet the first trust criterion, determining whether the electronic media file meets a second trust criterion; and in response to a determination that the electronic media file meets the second trust criterion, generating first metadata associated with the electronic media file, the first metadata to indicate that the electronic media file does not meet the first trust criterion.