Blockchain Content Authenticity Checks With Original Data Recovery
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Solution Overview
Problem
The challenge of determining the authenticity of digital content, particularly digital images, has become significant due to the ease of alteration, leading to issues like fake news, and existing blockchain-based solutions do not provide clear information on how content has been altered when authenticity is determined as inauthentic.
Innovation Solution
A management system that utilizes a blockchain to register hash values and metadata of digital content, enabling notification of actual data before alteration by comparing generated hash values with registered hash values, and providing information on authentic content when inauthenticity is detected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If blockchain technique is used to register hash values and metadata of contents, then authenticity determination can be performed, but information on actual data before alteration is not provided when inauthenticity is detected
Solution Approach 1:
The patent applies preliminary action by registering not only the hash value but also the actual contents data in the blockchain at the time of content generation. This preliminary registration ensures that when authenticity determination is performed later, the original unchanged data is already available in the blockchain, allowing the system to provide both the determination result and the actual data before alteration.
Solution Approach 2:
The patent uses the blockchain as an intermediary that stores both the hash value and the actual contents data. The blockchain serves as a mediator between the contents generation apparatus and the authenticity determination process, enabling retrieval of original data when needed while maintaining the integrity and immutability of the recorded information.
2Ease of operation
If only notification of authenticity determination result is provided, then user can obtain satisfaction when authentic, but user cannot know how contents have been altered when inauthentic
Solution Approach 1:
The patent applies dynamics by making the notification content adaptive based on the authenticity determination result. When contents are determined to be authentic, a simple confirmation notification is provided. When inauthentic, the notification dynamically includes additional information about the actual data before alteration, allowing users to understand the nature and extent of alterations while maintaining operational simplicity.
Solution Approach 2:
The patent implements feedback by providing detailed information about alteration in the notification when inauthenticity is detected. This feedback mechanism gives users not only the determination result but also specific information about what has been altered, enabling them to understand the full context of the authenticity issue.
Data Source
AI summary
A management system that manages contents associated with a hash value registered in a blockchain. A controller of the management system receives contents as a target of authenticity determination and an identification number for identifying authentic contents used as a reference for determining the authenticity of the target contents. The controller determines the authenticity of the contents as the target of the authenticity determination by comparing a hash value generated from the contents as the target of the authenticity determination and a hash value, registered in the blockchain, of authentic contents indicated by the received identification number, and notifies a result of the authenticity determination. In a case where it is determined that the contents as the target of the authenticity determination are not authentic, the controller notifies information on the authentic contents associated with the identification number.