Biometric Content Authentication With Blockchain Provenance

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Solution Overview

Problem

Existing blockchain-based content management systems fail to guarantee that the provider of digital content is the actual generator, as they do not verify the authenticity of the content provider.

Innovation Solution

A content generation apparatus that performs biometric authentication on the user, generates a hash value of the content, and transmits it to a management server for registration in a blockchain, ensuring the provider's identity is verified through biometric information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If blockchain technology is used to register content hash values and metadata, then the authenticity of digital images is guaranteed, but it cannot verify whether the provider is the actual generator of the content

Engineering Contradiction:

Improveauthenticity of digital imagesVSAvoididentity verification information

Core Design Contradiction:

ReliabilityVSLoss of information

Solution Approach 1:

The system performs biometric authentication of the content provider before the content is registered in the blockchain. This preliminary verification ensures that only the actual generator can provide content, and their identity is confirmed in advance. The biometric information is captured and verified before the content creation process, preventing impersonation at the source.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent introduces a management server as an intermediary between the content provider and the blockchain system. This server performs biometric authentication and verifies the provider's identity before allowing content registration. The management server acts as a mediator that adds the identity verification layer without disrupting the existing blockchain-based authenticity guarantee mechanism.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If biometric authentication is added to verify provider identity, then provider authenticity is guaranteed, but the system complexity increases

Engineering Contradiction:

Improveprovider identity verificationVSAvoidauthentication system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The management server performs multiple functions: it manages blockchain operations, registers content hash values, and conducts biometric authentication. By making the management server multi-functional, the system avoids adding separate dedicated authentication infrastructure, thereby limiting the increase in overall system complexity while achieving provider verification.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The content provider performs biometric authentication using their own device and stored biometric data. The authentication process is self-service in nature, where the provider verifies their own identity without requiring manual intervention from administrators or complex verification procedures, simplifying the implementation of identity verification.

Inventive Principle:

Principle #25Self-service

3Reliability

If biometric information is collected and stored, then identity verification is enabled, but security risks increase

Engineering Contradiction:

Improveidentity verification capabilityVSAvoidsecurity risks from data storage

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts only the essential biometric information needed for authentication verification, rather than storing complete biometric datasets. The system stores hashed or processed versions of biometric data that are sufficient for verification purposes but do not contain sensitive personal information, thereby reducing security risks associated with data storage.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The biometric information is stored in a secure, isolated environment within the management server, separated from the public blockchain and external access points. This creates an inert security environment where sensitive biometric data is protected from external threats, and only authorized internal processes can access it for verification purposes.

Inventive Principle:

Principle #39Inert atmosphere (Inert environment)

Data Source

PatentUS12505189B2Content generation apparatus capable of guaranteeing that provider of content is generator of the content, management server, control method for content generation apparatus, control method for management server, and storage medium

Publication Date: 2025.12.23 CANON KK

AI summary

A content generation apparatus capable of guaranteeing that a provider of a content is a generator of the content is provided. The content generation apparatus that generates a content according to an instruction received from a user includes an acquisition unit configured to acquire biometric information of the user, a biometric authentication unit configured to perform biometric authentication of the user based on the biometric information of the user, a hash value generation unit configured to generate a hash value of the content in a case that the biometric authentication of the user has succeeded, and a communication unit configured to transmit the content and information of the content to a management server that registers the hash value and the information of the content in a blockchain. The information of the content includes result information indicating a result of the biometric authentication of the user.