Validatable Master File Blockchain Media Authenticity
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Solution Overview
Problem
Existing technologies face challenges in confirming the authenticity of media files captured by devices, tracking changes made to these files, and verifying the authenticity of various versions of media files.
Innovation Solution
A computer system processes capture device output to create a validatable master file with blockchain data, allowing for the validation of media files and their modifications by generating hashes, metadata, and cryptographically signing data packets, and applying changes indicated by blockchain incrementing information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cryptographic processing is applied to validate media files, then reliability of file authenticity is improved, but device complexity increases
Solution Approach 1:
The system performs preliminary cryptographic hashing and blockchain data embedding at the point of media file creation. By pre-processing the media data to generate hash values and embed blockchain identifiers before distribution, the system eliminates the need for complex real-time cryptographic verification during file validation, thus improving reliability while minimizing processing complexity at verification stages
Solution Approach 2:
The patent introduces blockchain technology as an intermediary layer between media files and verification systems. The blockchain serves as a trusted third-party ledger that stores hash values and validation data, allowing verification systems to validate file authenticity by checking blockchain records rather than performing complex cryptographic analysis directly on media files
2Measurement precision
If blockchain data is embedded in master files, then measurement precision of file integrity is improved, but loss of time in file processing increases
Solution Approach 1:
The system segments the validation process into distinct components: hash value generation, blockchain data embedding, and verification checking. By separating these functions and pre-computing hash values during file creation, the system achieves precise integrity measurement through blockchain verification while minimizing processing time during distribution and validation phases
Solution Approach 2:
Blockchain data including hash values and validation information is embedded in the master file during the initial file creation process. This preliminary action ensures that when verification is needed, the system only needs to perform straightforward hash comparison rather than complex integrity analysis, thus improving measurement precision without significant time loss
3Reliability
If cryptographic signing of data packets is implemented, then reliability of data authentication is improved, but use of energy increases
Solution Approach 1:
Cryptographic signing is performed once during the master file creation process, embedding the digital signature in the blockchain data structure. Subsequent verification operations only require cryptographic validation of the embedded signature rather than performing new signing operations, thus maintaining high authentication reliability while significantly reducing energy consumption during verification phases
Data Source
AI summary
Media capture and verification originally-captured media files, the nature of modifications made to captured media files, and the authenticity of various versions of files related to the captured media are discussed. A computer identifies capture device output that represents an aspect of a recorded event. The computer cryptographically processes the capture device output to produce a validatable master file which includes master media data from the capture device output, master metadata of said master media data, and master file blockchain data. The master file blockchain data includes a master file block history portion, a master file signature key portion, a master file change indication portion, and a master file signed data hash portion. The computer also modifies the master media data to produce reference file media data. reference files and distributable files. The computer verifies the authenticity of each of these files.