Media Re-Encoding with Ledger Validation for Authentic Playback
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Solution Overview
Problem
Existing technologies lack effective methods to identify and ensure the trustworthiness of altered media data, allowing altered media to be passed off as unaltered or vice versa.
Innovation Solution
A computer system validates media data using ledger-based techniques, creates additional copies encoded differently, and writes cryptographic representations to an immutable ledger to ensure authenticity and supports distribution to client systems with varying capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If media data is altered using sophisticated technologies, then the alterability and imperceptibility of the alteration is improved, but the ability to identify and detect the alteration deteriorates
Solution Approach 1:
The system performs preliminary validation of media data against a ledger of authorized versions before distribution. This preliminary check prevents altered media from being distributed by verifying cryptographic hashes of the media against stored authorized versions, thereby resolving the contradiction by detecting alterations before they can be widely disseminated.
Solution Approach 2:
The patent introduces an intermediary validation system that sits between media creators and distributors. This intermediary layer uses cryptographic hashing and ledger technology to verify media authenticity, creating a trust bridge that detects alterations without requiring direct confrontation with sophisticated alteration technologies.
2Ease of operation
If a single encoding scheme is used for media data, then the simplicity and consistency of the media format is improved, but the adaptability to different client system capabilities deteriorates
Solution Approach 1:
The validation and encoding process is segmented into distinct stages: validation against the ledger, then conditional re-encoding based on client capabilities. This segmentation allows the system to maintain simplicity in the validation phase while introducing adaptability in the encoding phase, resolving the contradiction by separating these functions into distinct operational steps.
Solution Approach 2:
The system dynamically adjusts the encoding parameters of media data based on the capabilities of receiving client systems. Instead of using a fixed encoding scheme, the system adapts encoding choices (such as resolution, bit rate, or compression level) to match client capabilities, thereby resolving the contradiction between encoding simplicity and adaptability.
Data Source
AI summary
Methods, systems, and devices that support ledger-based validation and re-encoding of media data are described. A computer system may obtain a purported copy of a set of media data. The computer system may determine whether the purported copy is a valid copy of the original set of media data. Based on determining that the purported copy is a valid copy, the computer system may generate one or more additional copies of the set of media data, each of which may be encoded in accordance with a different encoding scheme, such as to support providing the one or more additional copies to other computer systems for playback. For each additional copy, the computer system may write one or more cryptographic representations of the additional copy to an immutable ledger, such as to support the validation of the additional copy when provided to another computer system for playback.