Tamper Detection via Dual-Route Blockchain Measurement Verification

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Solution Overview

Problem

Existing techniques for ensuring the reliability of measured values, such as carbon emissions data, are costly and time-consuming due to the need for acquiring evidence at each node to prevent tampering, which increases as the number of relay nodes increases.

Innovation Solution

A tamper detection system comprising a measurement node, a node group, and a blockchain system that records measured values and calculation functions on a blockchain to determine tampering by using composite and inverse functions, with separate routes for measured values to ensure independence and reduce calculation costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If evidence is acquired at each node to prevent tampering, then reliability of measured values is improved, but cost and time consumption increase

Engineering Contradiction:

Improvereliability of measured valuesVSAvoidtime consumption for acquiring evidence

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system segments the verification process by creating two independent routes: a first route that directly transmits measured values from measurement devices to the blockchain system, and a second route that processes values through multiple relay nodes. This segmentation allows the system to verify reliability without requiring evidence collection at every intermediate node, thereby reducing time consumption while maintaining reliability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The blockchain system acts as an intermediary that receives and compares data from both routes. By using the blockchain as a trusted mediator to perform the verification function, the system eliminates the need for manual evidence collection at each node, significantly reducing the time and cost associated with acquiring verification evidence while maintaining the reliability of the measured values.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If evidence is acquired at each node to prevent tampering, then reliability of measured values is improved, but cost increases

Engineering Contradiction:

Improvereliability of measured valuesVSAvoidcost for acquiring evidence

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The blockchain system acts as an intermediary that receives and compares data from both routes. By using the blockchain as a trusted mediator to perform the verification function, the system eliminates the need for manual evidence collection at each node, significantly reducing the cost associated with acquiring verification evidence while maintaining the reliability of the measured values.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Adaptability or versatility

If multiple relay nodes are used to process measured values, then functionality and processing capability are improved, but susceptibility to tampering increases

Engineering Contradiction:

Improveprocessing capabilityVSAvoidsusceptibility to tampering

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The system segments the data transmission into two independent routes: a first route that bypasses relay nodes and transmits directly to the blockchain, and a second route that utilizes multiple relay nodes for processing. This segmentation allows the system to benefit from the processing capability of multiple nodes while preventing tampering by comparing results against the direct route, thus maintaining reliability despite increased functionality.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system implements a feedback mechanism where the blockchain system compares the final values from the second route (processed through relay nodes) with the directly transmitted values from the first route. This feedback loop enables the system to detect any tampering that may have occurred during relay node processing, allowing the system to maintain reliability while utilizing the enhanced processing capability of multiple nodes.

Inventive Principle:

Principle #23Feedback

4Measurement precision

If verification is performed by comparing measured values through composite functions, then accuracy of tamper detection is improved, but calculation cost increases

Engineering Contradiction:

Improveaccuracy of tamper detectionVSAvoidcalculation cost

Core Design Contradiction:

Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The system performs verification only on the final output values rather than at every intermediate processing stage. By applying the composite function verification only to the final results from the second route and comparing them with the first route, the system achieves accurate tamper detection while minimizing calculation costs by avoiding redundant verification at each processing step.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS20260067106A1Tamper detection system

Publication Date: 2026.03.05 IHI CORP

AI summary

A tamper detection system measures a physical parameter of a target node and outputs the physical parameter measured as a first measured value, receive the first measured value from a first route of the communication network, receive a calculated value from a second route of the communication network, in which the calculated value is obtained from at least one calculation performed on a second measured value of the physical parameter of the target node, and determines whether tampering has occurred along the second route based on the calculated value and the first measured value.