Blockchain Commitment Verification for Confidential Product Composition
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Solution Overview
Problem
Existing technologies struggle to verify the composition of manufactured products while maintaining the confidentiality of raw material information, especially in the context of sustainable development goals, where public disclosure of such information is required without compromising competitive advantages.
Innovation Solution
An information processing system utilizing a server, block chain nodes, and terminals to compute commitment values based on raw material quantities, allowing verification of product composition without revealing exact quantities, and recording these values in a block chain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If raw material information is publicly disclosed in a block chain, then transparency and verification of product composition are improved, but proprietary information and competitive advantages are compromised
Solution Approach 1:
The patent extracts only the essential verification information (commitment values) from the complete raw material data, storing it on the block chain while keeping detailed proprietary information (exact quantities, specifications, sources) confidential. This allows transparency of composition verification without exposing sensitive business secrets.
Solution Approach 2:
The patent introduces commitment values as an intermediary representation of raw material information. These commitment values serve as verifiable proofs of product composition without revealing the actual raw material quantities or specifications, acting as a mediator between transparency requirements and proprietary protection.
2Measurement precision
If detailed raw material quantities are recorded, then measurement precision of product composition is improved, but loss of proprietary information increases
Solution Approach 1:
The patent extracts and stores only the commitment values that enable verification of product composition, omitting the detailed raw material quantities and specifications. This extraction approach maintains verification accuracy while preventing loss of proprietary information.
Solution Approach 2:
The patent transforms the raw material quantity parameters into commitment value parameters through cryptographic hashing. This parameter transformation maintains the verifiability of composition information while rendering the original quantitative data irrecoverable and confidential.
3Adaptability or versatility
If all transaction data is made public, then adaptability of information access is improved, but device complexity for data management increases
Solution Approach 1:
The patent extracts only the necessary verification data (commitment values) for public storage on the block chain, reducing the volume of data that needs to be managed and stored compared to recording all raw material transaction details. This simplifies data management while maintaining information accessibility.
Data Source
AI summary
An information processing system includes a server, plural block chain nodes, and plural terminals. Each of the plural block chain nodes reads from a block chain each first transaction data that is past transaction data linked to a second transaction data broadcast by the server. Each of the plural block chain nodes verifies whether or not a generation target item of the second transaction data is configured by a raw material contained in a generation source item of the first transaction data based on a relationship between a commitment value of the generation target item contained in the second transaction data and a commitment value of the generation source item contained in the first transaction data.