Locally Referenced Blockchain Presence Verification

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Solution Overview

Problem

Existing methods lack a reliable and forgery-proof way to demonstrate the presence of an individual or object at a specific location, particularly in applications like gaming, work, and IoT, where evidence of location is required for rewards or verification.

Innovation Solution

A system and method utilizing a locally associated blockchain transaction with secure computing devices and short-range communication to generate and sign blockchain transactions, ensuring that the presence of an apparatus is securely linked to a specific area, providing high reliability and protection against forgery.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional presence verification methods (e.g., paper signatures, GPS coordinates) are used, then ease of operation is improved, but reliability and protection against forgery deteriorate

Engineering Contradiction:
Improvereliability of presence demonstrationVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple verification mechanisms into a unified system: short-range wireless communication for location verification, blockchain for immutable recording, and cryptographic signing for authentication. These components work together to create a presence verification system that is both highly reliable and prevents forgery, while the integrated approach avoids the need for separate complex systems for each function.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent introduces a secure computing device as an intermediary between the apparatus and the blockchain network. This intermediary device performs cryptographic signing of presence data and manages the interaction with the blockchain, thereby protecting the core security mechanisms from direct exposure while maintaining system reliability and preventing unauthorized manipulation.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If short-range communication and blockchain signing are used, then protection against forgery is improved, but device complexity increases

Engineering Contradiction:
Improveprotection against forgeryVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The apparatus autonomously generates and signs its own presence data using its identification information, eliminating the need for manual verification or external authentication servers. The blockchain network then automatically validates and records the signed data, creating a self-service system that achieves high security without requiring complex external verification infrastructure.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces traditional mechanical or manual presence verification methods (such as physical signatures or GPS tracking) with cryptographic mechanisms. The apparatus uses its identification information to cryptographically sign presence data, and the blockchain provides immutable verification, substituting physical verification processes with digital cryptographic proofs that are inherently more secure and harder to forge.

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

3Measurement precision

If blockchain transactions are integrated with location data, then measurement precision of location is improved, but loss of time for verification increases

Engineering Contradiction:
Improveprecision of location demonstrationVSAvoidverification time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The apparatus performs preliminary actions by generating and signing its presence data locally before submitting to the blockchain. The cryptographic signature is created in advance using the apparatus's identification information, allowing for rapid verification later without requiring complex real-time authentication processes, thus reducing verification time while maintaining location precision.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11683152B2System and method using a locally referenced blockchain
Publication Date: 2023.06.20 INFINEON TECHNOLOGIES AG
  • US11683152B2 patent drawing
  • US11683152B2 patent drawing
  • US11683152B2 patent drawing

AI summary

A method comprises generating a signed blockchain transaction using a secure computing device arranged in a local area, and an apparatus set up for short-range communication. The method comprises associating the signed blockchain transactions with the local area, wherein the signed blockchain transaction indicates a presence of the apparatus in the local area.