Blockchain Content Management System for Edited Digital Media Authenticity

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Solution Overview

Problem

Existing content management systems cannot determine the authenticity of edited digital content after its generation, particularly in processes like image editing, which is crucial for preventing tampering and ensuring the integrity of shared information.

Innovation Solution

A content management system that uses a blockchain to register hash values and identification numbers for edited content, allowing for authenticity verification by comparing generated hash values with those stored in the blockchain.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If blockchain technology is used to register hash values of generated content, then authenticity of original content is guaranteed, but authenticity of edited content cannot be determined

Engineering Contradiction:

Improveauthenticity guaranteeVSAvoidedited content verification

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The system performs preliminary registration of both the original content's hash value and the edited content's hash value in the blockchain before authenticity verification is needed. This allows the system to have reference values ready for comparing against future verified content, enabling determination of whether edited content has been tampered with.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The authenticity verification system is segmented into multiple independent verification processes: one for verifying original content using its hash value, and another for verifying edited content using its hash value. This segmentation allows each type of content to be verified independently according to its specific requirements.

Inventive Principle:

Principle #1Segmentation

2Ease of manufacture

If hash value registration is performed only at content generation time, then registration process is simple, but post-generation edited content cannot be verified for authenticity

Engineering Contradiction:

Improveregistration process simplicityVSAvoidedited content authenticity

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

Inventive Principle:

Principle #10Preliminary action

3Reliability

If blockchain registration includes edited content hash values, then authenticity of edited content can be determined, but system complexity increases

Engineering Contradiction:

Improveedited content authenticity verificationVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The blockchain registration system is designed to handle multiple types of content (original and edited) using the same registration and verification mechanisms. The system universally applies hash value calculation and blockchain registration to both original and edited content, eliminating the need for separate complex verification systems for each content type.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20240054507A1Content management system, content generation apparatus, content management method, control method for contents generation apparatus, and storage medium storing content management program

Publication Date: 2024.02.15 CANON KK

AI summary

A content management system includes a memory device and at least one processor. The memory device stores a set of instructions. The at least one processor configured to execute the instructions to apply an edition process to a content in accordance with an instruction from an administrator of the content, generate a hash value of an edited content immediately after generating the edited content by the edition process, generate an identification number for identifying the edited content, register the hash value of the edited content and the identification number in a blockchain in association with each other, receive a content subjected to an authenticity determination and an identification number for identifying the content concerned, and determine the authenticity of the received content by comparing a hash value generated from the received content with the hash value registered in the blockchain and corresponding to the received identification number.