Blockchain Product Authentication via NFC Digital Twins
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Solution Overview
Problem
Existing authentication methods for products are inefficient, requiring repeated efforts and lacking transparency, especially in secondary marketplaces, where counterfeiting and authentication costs are significant.
Innovation Solution
A blockchain-based product authentication system that uses NFC tags and non-fungible tokens to create a digital twin of a physical product, enabling secure, transparent, and efficient authentication and ownership transfer across the supply chain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional authentication methods are used, then authentication can be performed, but repeated authentication efforts are required and transparency is lacking
Solution Approach 1:
The patent applies preliminary action by performing authentication at the point of purchase and recording it on the blockchain before the product enters the secondary market. This initial authentication creates a permanent record that eliminates the need for repeated authentication efforts when the product is resold, directly resolving the contradiction between authentication reliability and time loss.
Solution Approach 2:
The patent creates a digital copy of the product's authentication status on the blockchain, which serves as an immutable record that can be verified without physically re-examining the product. This digital twin approach allows any party to verify authenticity instantly, improving reliability while eliminating time-consuming repeated authentication processes.
2Reliability
If expert authentication teams are used, then product authenticity can be verified, but authentication costs increase
Solution Approach 1:
The patent implements self-service authentication where the product carries its own authentication credentials through NFC tags and blockchain records. Anyone with a smartphone can verify authenticity independently without requiring expert authentication teams, thereby maintaining high reliability while dramatically reducing authentication costs.
Solution Approach 2:
The patent replaces the mechanical system of expert physical inspection with a digital verification system using NFC tags and blockchain technology. This substitution eliminates the need for human experts to physically examine products, maintaining authentication accuracy while removing the cost associated with expert teams.
3Ease of manufacture
If NFC tags are made easily removable, then tag attachment is simple, but product authentication security decreases
Solution Approach 1:
The patent applies local quality by making different parts of the NFC tag assembly have different properties: the NFC circuit board is designed to be easily replaceable for manufacturing efficiency, while the adhesive layer uses tamper-evident material that shows visible signs if attempted to be removed secretly. This resolves the contradiction by providing ease of manufacture where needed while maintaining security where critical.
Solution Approach 2:
The patent uses color changes as a tamper-evident mechanism in the adhesive layer. When the adhesive is tampered with or removed, it changes color to provide visual evidence of tampering. This allows the tag to remain easy to attach while maintaining authentication security through visible tamper detection.
4Reliability
If strong adhesive is used for NFC tags, then tag security improves, but tag removal for legitimate purposes becomes difficult
Solution Approach 1:
The patent segments the NFC tag assembly into two distinct parts: a reusable NFC circuit board and a tamper-evident adhesive layer. The adhesive uses strong bonding material for security, but the segmentation allows the NFC board to be legitimately replaced while the adhesive layer's tamper evidence prevents secret removal. This resolves the contradiction between tag security and removal ease for legitimate purposes.
Data Source
AI summary
Systems and methods for authenticating products, such as products from original manufacturers and/or resellers, that provide a trusted and reliable mechanism for buyers and sellers to prove the authenticity of a product and for authenticators to establish an authentication that can be relied on during downstream transactions is provided. In some embodiments, a blockchain-based product authentication system is provided that allows entities within a chain of commerce (e.g., suppliers, manufacturers, distributors, retails, consumers, consignors, resellers) to verify the authenticity of items by way of trusted authenticators and trusted audit processes. The product authentication system enables users to rely on product authentications via off-channel sales with the use of cryptography, blockchain, digital assets, and tagging hardware and software.