Food Packaging Data Hash Trees for Tamper-Proof Safety Tracking

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current food packaging machines lack efficient tracking and verification of food safety data across the entire product lifecycle, from production to consumption, and fail to ensure tamper-proof authenticity of data, which is crucial for identifying and mitigating food safety incidents.

Innovation Solution

A food packaging machine system that utilizes a hardware data processor connected to packaging and food supply modules, creating and verifying food data transactions through a network data processing system, employing a hash tree structure and blockchain technology for secure and decentralized storage and verification of food safety data, ensuring data integrity and authenticity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional food safety tracking methods are used, then data collection is simple, but data integrity and tamper-proof verification are compromised

Engineering Contradiction:
Improvedata integrityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments food safety data into discrete transactions, each representing a specific event (packaging, processing, testing). Each transaction is individually hashed and linked to form a chain, allowing verification of individual events while maintaining overall data integrity. This segmentation enables targeted verification without requiring complete system re-validation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces hash functions as intermediaries between raw food safety data and verification mechanisms. Each data transaction is transformed into a cryptographic hash that serves as a unique fingerprint, enabling tamper-proof verification without exposing the underlying sensitive data. This intermediary layer provides security while maintaining system efficiency.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If comprehensive food safety data is tracked across the entire product lifecycle, then food safety monitoring is improved, but data management complexity increases

Engineering Contradiction:
Improvefood safety monitoringVSAvoiddata management complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent creates a universal data transaction structure that can represent any food safety event across the entire product lifecycle - from farming and processing to packaging and distribution. The standardized transaction format with fields for event type, timestamp, location, and measurements allows a single system to handle diverse food safety data uniformly, reducing management complexity despite comprehensive tracking.

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

Solution Approach 2:

The patent performs preliminary hashing and linking of data transactions as they are generated, creating the verification chain in real-time rather than requiring batch processing later. This preliminary action ensures data integrity is established at the source, reducing the computational burden and complexity of subsequent verification processes.

Inventive Principle:
Principle #10Preliminary action

3Loss of time

If quick identification of affected packages is required during food safety incidents, then response time is reduced, but data verification complexity increases

Engineering Contradiction:
Improveresponse timeVSAvoiddata verification difficulty
Core Design Contradiction:
Loss of timeVSDifficulty of detecting and measuring

Solution Approach 1:

The patent adds a cryptographic dimension to food safety data by transforming physical/package identifiers into cryptographic hash values that exist in a different verification space. This allows quick identification of affected packages through hash comparison without requiring complex physical inspection or laboratory analysis, reducing response time while maintaining verification rigor.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

4Reliability

If tamper-proof data authentication is implemented, then data authenticity is ensured, but processing overhead increases

Engineering Contradiction:
Improvedata authenticityVSAvoidprocessing overhead
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent creates cryptographic copies (hashes) of the original food safety data that serve as verification tokens. These hash copies are computationally inexpensive to generate and verify compared to the original data, allowing rapid authentication without processing the entire data set. The hash acts as a lightweight copy that preserves authenticity verification capability.

Inventive Principle:
Principle #26Copying

Data Source

PatentEP3539885B1Food packaging machine tracking food safety data using hash trees
Publication Date: 2021.05.19 TETRA LAVAL HOLDINGS & FINANCE SA
  • EP3539885B1 patent drawingFigure 1
  • EP3539885B1 patent drawingFigure 2
  • EP3539885B1 patent drawingFigure 3

AI summary

The present invention provides a food packaging machine comprising a packaging material supply module, a food supply module, a filling module. The food packaging machine further comprises a hardware data processor operably connected to the packaging material supply module, operably connected to the food supply module, operable to create a food data transaction, and operably connected to a network data processing system. The hardware data processor is operable to send the food data transaction to the network data processing system for the data transaction to be appended to a packaged food production data hash tree. The present invention further provides a system for packaging food comprising a plurality of food packaging machines as well as methods for tracking food data transactions in a food packaging machine and in a system for packaging food.