Blockchain Interview Record Verification for Tamper-Proof Evidence
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Solution Overview
Problem
Existing video conferencing platforms lack security and immutability, making it difficult to create and verify authentic interview records for legal and evidential purposes, and they expose interviewees to risks of data vulnerability and abuse.
Innovation Solution
A platform-agnostic method using WebRTC, cloud servers, and blockchain technology to create and validate immutable digital records by hashing interview data and storing it on a blockchain ledger, ensuring secure and tamper-proof evidence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If existing online video conferencing platforms are used for interviews, then convenience and accessibility are improved, but security and evidential reliability deteriorate
Solution Approach 1:
A blockchain-based intermediary layer is introduced between the video conferencing platform and the evidential record. The system captures video streams, generates cryptographic hashes, and stores them on a blockchain ledger, acting as a trusted mediator that guarantees the authenticity and integrity of interview records while maintaining compatibility with existing video conferencing tools
Solution Approach 2:
The system performs preliminary actions by pre-establishing blockchain anchors and hash verification mechanisms before interviews conduct. Interview records are pre-configured with cryptographic identifiers that enable future validation, ensuring evidential reliability is built-in from the outset rather than added retroactively
2Quantity of substance
If video conference data is stored on traditional servers, then storage efficiency is improved, but immutability and tamper-proofing deteriorate
Solution Approach 1:
The system segments the interview record into two parts: the actual video data stored on traditional servers and the cryptographic hash stored on the blockchain. This segmentation allows efficient storage of large video files while maintaining immutability through the distributed, tamper-resistant blockchain ledger
Solution Approach 2:
A hash function acts as an intermediary that transforms the video data into a fixed-size cryptographic fingerprint. This mediator enables the video to be stored efficiently on conventional storage while the hash anchors it to the immutable blockchain, bridging the gap between storage efficiency and immutability
3Reliability
If interview records are made immutable through blockchain, then security and authenticity are improved, but system complexity increases
Solution Approach 1:
The system implements self-service mechanisms where the blockchain network automatically verifies and validates interview records without requiring manual intervention. The distributed consensus mechanism and automated hash verification reduce the need for complex human-managed security protocols while maintaining high security standards
Data Source
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AI summary
A method of creating an immutable digital record of a video conference conducted over the Internet and involving two or more parties. The method comprises: a) routing conference data through one or more servers; b) identifying data streams of the conference data, including video and audio streams uploaded by respective parties; c) separately processing the audio streams to convert speech data to text data thereby providing a text record for each party; d) storing the data streams and the text records at said server or servers, or at a storage medium associated with server or servers; and e) generating a hash value across the data streams and the text records and saving the hash value to a Blockchain ledger.