Media Authenticity Verification Using Ledger-Signed Video Hashes

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Solution Overview

Problem

The increasing difficulty in determining the origin, authenticity, and completeness of digital media content due to editing and manipulation makes it challenging to verify the integrity of media data.

Innovation Solution

A system utilizing a video codec that incorporates digitally-signed hashes stored on a distributed ledger, such as a blockchain, to ensure the authenticity and integrity of media content by generating and verifying hash values for keyframes, ensuring that any modifications can be detected.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If digital media content is distributed and edited freely, then accessibility and versatility are improved, but authenticity and integrity verification become more difficult

Engineering Contradiction:

Improvemedia distribution flexibilityVSAvoidmedia authenticity verification

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The system performs preliminary hashing of media content at the source before distribution. A hash function processes the original media data to generate a unique digital fingerprint that is stored and transmitted alongside the content. This preliminary action enables later verification without requiring complex real-time analysis during distribution or consumption.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent introduces a hash value as an intermediary element between the original media content and the verification process. This intermediary digital representation serves as a reliable mediator that can be independently verified, allowing third parties to authenticate content without needing access to the original source or complex verification tools.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If media content is manipulated and edited, then adaptability and usability are improved, but detection of modifications becomes more difficult

Engineering Contradiction:

Improvemedia editing capabilityVSAvoidmodification detection difficulty

Core Design Contradiction:

Adaptability or versatilityVSDifficulty of detecting and measuring

Solution Approach 1:

The system implements a feedback mechanism where the hash value associated with media content is re-calculated and compared against the original hash after any potential modifications. This feedback loop provides immediate detection of changes, as any modification to the media content will produce a different hash value, clearly indicating that the content has been altered.

Inventive Principle:

Principle #23Feedback

3Reliability

If comprehensive verification of media origin and integrity is performed, then reliability is improved, but system complexity increases

Engineering Contradiction:

Improvemedia integrity verificationVSAvoidverification system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the verification function into a separate, independent component - the hash value. Instead of embedding complex verification logic within the media distribution system, the solution separates the integrity check into a standalone digital fingerprint that can be verified using simple comparison operations, significantly reducing system complexity.

Inventive Principle:

Principle #2Taking out (Extraction)

4Reliability

If real-time verification of media content is implemented, then reliability is improved, but processing time and energy consumption increase

Engineering Contradiction:

Improvereal-time verification accuracyVSAvoidverification processing time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system uses a computationally inexpensive hash function that generates verification data quickly and efficiently. The hash calculation is designed to be a lightweight operation that can be performed in real-time without significant processing overhead, enabling rapid verification that does not bottleneck media distribution or consumption.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Data Source

PatentUS12580735B1Processor and system to verify media authenticity using a distributed ledger

Publication Date: 2026.03.17 NVIDIA CORP

AI summary

Apparatuses, systems, and techniques to enable verification of content, such as media content. Hashes of content can be digitally signed and stored to a distributed ledger, such that a source of content can be verified and any modification determined.