Content Authentication Using Author Vectors, Signatures, and Ledgers

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Solution Overview

Problem

Existing methods fail to authenticate the identity of individuals in media content, particularly against deepfake technology, leading to potential identity theft and fraud.

Innovation Solution

A method involving generating a state author vector from content fragments, creating a block of key information with a digital signature, and using a distributed ledger to ensure the content's integrity and authenticity, incorporating biometrics for additional verification.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If deepfake technology is used to create realistic impersonations, then the convincingness of media content increases, but the authenticity and reliability of identity representation deteriorates

Engineering Contradiction:

Improveease of creating realistic impersonationsVSAvoidauthenticity of identity

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The system performs preliminary authentication by generating cryptographic hashes and digital signatures of the original content author's biometric data before the content is distributed. These authentication credentials are stored in a distributed ledger in advance, enabling verification of the content author's identity before any potential deepfake manipulation can occur.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements a feedback mechanism where the content authenticity is continuously verified by comparing the original cryptographic hash with hashes generated from the content during distribution. This allows real-time detection of any manipulation or deepfake substitution, providing ongoing authentication rather than a one-time check.

Inventive Principle:

Principle #23Feedback

2Reliability

If cryptographic authentication methods are implemented, then the security and authenticity verification improves, but the system complexity and computational requirements increase

Engineering Contradiction:

Improveauthentication securityVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system extracts only the essential authentication elements (cryptographic hash and digital signature) from the complex authentication process and stores them separately in a distributed ledger. This separation allows the main content distribution system to remain simple while the authentication functionality is handled by the specialized ledger infrastructure.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The distributed ledger acts as an intermediary between the content author and the verification system. It stores and manages the cryptographic authentication data, eliminating the need for direct complex cryptographic operations in the content distribution system itself. The ledger mediates the authentication process by providing pre-stored verification credentials.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentEP4607377A1A method for providing content for authentication and authenticating content

Publication Date: 2025.08.27 TERRA QUANTUM AG

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AI summary

The present invention provides a computer-implemented method for providing content of a content author for authentication, the method comprising: obtaining, by the content author, a first author fragment of content; generating a first state author vector from the first author fragment of content; and creating a first block of key information based on the first author fragment of content, wherein the first block of key information comprises information of the first state author vector and a first digital signature.