Blockchain QR Packaging Codes for Supply Chain Authentication

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Solution Overview

Problem

Existing counterfeiting prevention techniques are not secure, not immutable, prone to tampering, lack transparency, and are costly, failing to verify product codes at every stage of the supply chain and provide effective tracing and tamper-free solutions.

Innovation Solution

A system and method using packaging codes and blockchain technology to generate encrypted product codes through a product code generation engine, employing cryptographic hashes and QR codes, ensuring verification and authentication at each supply chain stage, with tamper-proof encryption and decryption processes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If existing counterfeiting prevention techniques are used, then some level of product identification is achieved, but security and immutability are insufficient and tampering is possible

Engineering Contradiction:
ImprovesecurityVSAvoidcomplexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces blockchain technology as an intermediary layer between product codes and verification systems. The blockchain ledger serves as a trusted mediator that stores product journey data immutably, preventing tampering while maintaining system integrity. This resolves the security-complexity contradiction by providing cryptographic security through the blockchain intermediary without requiring complex verification infrastructure at each supply chain node.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces traditional mechanical/physical security measures (such as physical seals, manual verification processes, and centralized authentication servers) with cryptographic hash functions and blockchain-based digital verification. This substitution provides enhanced security and immutability while reducing the complexity of physical security infrastructure and manual verification procedures.

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

2Loss of information

If product codes are verified at each stage of the supply chain, then transparency and traceability are improved, but operational complexity and costs increase

Engineering Contradiction:
ImprovetransparencyVSAvoidoperational ease
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The patent implements self-service verification where any stakeholder in the supply chain can independently verify product authenticity by scanning the product code and checking the blockchain ledger. The system automatically provides transparency and traceability information without requiring manual verification or complex operational procedures. This resolves the transparency-operational ease contradiction by enabling automated, user-friendly verification that improves information access while maintaining simplicity.

Inventive Principle:
Principle #25Self-service

3Reliability

If existing authentication methods are used, then some level of verification is achieved, but they are prone to tampering and hacking

Engineering Contradiction:
Improvetamper resistanceVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces traditional authentication mechanisms (physical security measures, centralized servers, manual verification) with cryptographic hash functions and blockchain-based verification. This substitution provides superior tamper resistance through cryptographic security while reducing the complexity of physical security infrastructure and centralized authentication systems.

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

Solution Approach 2:

The patent introduces blockchain technology as a trusted intermediary that mediates between product codes and verification systems. The blockchain ledger provides an immutable record of product journey data, preventing tampering while maintaining system integrity. This intermediary approach enhances tamper resistance without requiring complex verification infrastructure at each node.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Adaptability or versatility

If serialization codes with multiple formats are used, then product identification capability is improved, but cost and complexity increase

Engineering Contradiction:
Improvecode format versatilityVSAvoidcode complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a universal product code system based on cryptographic hashes that can be verified across all supply chain stages and platforms. The blockchain-based verification system provides multi-functionality, supporting various product types and supply chain configurations through a single standardized approach. This resolves the versatility-complexity contradiction by providing a universal code format that works across different contexts without requiring multiple specialized code formats.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Provides secure, transparent, and cost-effective counterfeiting prevention by verifying product codes at every stage, ensuring product authenticity and traceability, and preventing tampering, suitable for multiple industries and supply chain levels.

Implementation Method 1

generate a hash of a first product code by encrypting scanned product data associated with a product received from an input/output unit. The first product code is a cryptographic hash conversion of the product data.

Methodology Applied
Scientific EffectCryptographic hash encryption:

Implementation Method 2

generate a second product code by encrypting the first product code for combining with one or more distinct Quick Response (QR) part values.

Methodology Applied
Scientific EffectCryptographic encryption:

Implementation Method 3

employing cryptographic hashes and QR codes, ensuring verification and authentication at each supply chain stage

Methodology Applied
Scientific EffectQR code optical recognition:

Data Source

PatentUS12488357B2System and method for preventing counterfeiting of products using packaging codes and blockchain technology
Publication Date: 2025.12.02 COGNIZANT TECH SOLUTIONS INDIA PVT LTD
  • US12488357B2 patent drawing
  • US12488357B2 patent drawing
  • US12488357B2 patent drawing

AI summary

System and method for prevention of counterfeiting of products using combination of packaging codes and blockchain technology is provided. Hash of a first product code is generated by encrypting scanned product data associated with a product received. Second product code is generated by encrypting first product code for combining with distinct first product code Quick Response (QR) part values. Hash of a third product code is generated by combining hash of first product code and hash of second product code. Hash of third product code is divided into a hash of a first sub-code and a hash of a second sub-code. Lastly, a comparison of a scanned third product code placed on the product is performed with requested user ID, generated hash of first product code, second product code and hash of third product code to ascertain a match therebetween for preventing counterfeiting of the product.