Trusted Third Party Digital Media Certification System

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Solution Overview

Problem

Current methods for certifying legal facts using digital media lack strong probative force due to concerns over the authenticity and integrity of digital evidence, as users can manipulate images and the identity of the certifying party is not reliably verified, leading to potential fraud and reduced credibility.

Innovation Solution

A system that securely captures and transmits digital media, such as photos or videos, to a trusted third party without user interference, using a dedicated memory inaccessible to the user, timestamping, geolocation, and encryption, ensuring the integrity and authenticity of the evidence through multiple shots taken at different magnification values and distance measurements, thereby creating a tamper-proof link between the third party and the legal fact.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If digital media is made accessible to users for capture and storage, then ease of operation is improved, but reliability deteriorates due to potential manipulation and lack of authentication

Engineering Contradiction:
Improveuser ability to capture and store digital mediaVSAvoidauthenticity and integrity of digital media
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent introduces a trusted third party (intermediary) that certifies digital media between the user and the final verification process. This intermediary validates the authenticity and integrity of the media, resolving the contradiction by maintaining user accessibility while ensuring reliability through independent verification.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces physical verification methods (mechanical/bailiff presence) with digital cryptographic verification. Through hashing, encryption, and digital signatures, the system achieves reliable authentication without requiring physical intervention, thus maintaining ease of operation while improving reliability.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If a bailiff physically visits the site to certify legal facts, then reliability is improved, but loss of time and productivity worsen due to travel and organization requirements

Engineering Contradiction:
Improveprobative force of certificationVSAvoidtime for organizing and executing certification
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent replaces the mechanical process of physical bailiff travel and on-site verification with digital transmission and remote cryptographic verification. The bailiff can certify legal facts remotely by verifying digital hashes and metadata, eliminating travel time while maintaining certification reliability through cryptographic proof of authenticity.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system performs preliminary actions by automatically capturing metadata (timestamps, geolocation, device identifiers) and generating cryptographic hashes at the moment of media capture. This preliminary authentication data is embedded in the digital media, allowing rapid remote verification without requiring time-consuming on-site investigation later.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If digital media can be freely captured and stored by users, then ease of operation is improved, but object-generated harmful factors worsen due to potential fraud and manipulation

Engineering Contradiction:
Improveuser freedom to capture digital mediaVSAvoidfraud and manipulation of digital evidence
Core Design Contradiction:
Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The patent uses cryptographic hashing and digital signatures to replace physical security measures. Each digital media file is transformed into a unique hash that cannot be reversed, and any manipulation changes the hash completely. This cryptographic mechanism prevents fraud while maintaining user freedom to capture media, as the cryptographic proof automatically detects any alterations.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system implements feedback through cryptographic verification where the digital media and its metadata are continuously validated against stored hashes and digital signatures. Any attempt at manipulation is immediately detectable through hash mismatch, providing real-time feedback that prevents fraudulent evidence from being accepted.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP4113344B1Method and system for certification of legal facts
Publication Date: 2023.10.18 BP VENTURES
  • EP4113344B1 patent drawingFigure 1
  • EP4113344B1 patent drawingFigure 2

AI summary

According to the invention, the system creates a dedicated memory within the device, inaccessible to the user, to process and/or store digital media to be certified, and prevents the recording of digital media in the capture device's native library. The system then requires the user to take at least one, advantageously at least two, and preferably at least three, images of the legal event at different magnifications to create at least one encrypted and tagged digital media item to be certified. The system then generates a file containing the images, their timestamps, and the geolocation coordinates of the legal event and sends it, without user access, to a trusted third party for certification.