Immutable Evidence Data Storage via Blockchain NFT Minting
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Solution Overview
Problem
Historical computer data stored for dispute resolution often faces challenges in verifying whether the data has been tampered with, making it difficult to establish its integrity.
Innovation Solution
A server computer system is implemented to obtain immutable evidence data, mint it as a non-fungible token with metadata identifying creation and modification dates, and store the token in a blockchain network, ensuring the data's integrity and immutability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If historical computer data is stored for dispute resolution, then the ability to resolve disputes is improved, but the reliability of the data integrity deteriorates due to potential tampering
Solution Approach 1:
The patent introduces a blockchain network as an intermediary between the evidence data and the dispute resolution process. The blockchain acts as a trusted mediator that independently verifies and records data integrity through its distributed ledger and consensus mechanisms, eliminating the need to trust the storage system alone.
Solution Approach 2:
The patent creates cryptographic copies of the evidence data in the form of hash values and minting transactions. These copies are stored on the blockchain network, providing an immutable replica that can be verified without exposing the original data, thus preserving integrity while enabling dispute resolution.
2Device complexity
If evidence data is stored in traditional systems, then storage simplicity is maintained, but the difficulty of detecting tampering increases
Solution Approach 1:
The patent performs preliminary actions by generating cryptographic hash values of the evidence data before storing it, and by minting NFTs that record these hashes on the blockchain. This preliminary cryptographic processing creates a tamper-evident seal that automatically detects any subsequent modifications without requiring complex ongoing monitoring systems.
Solution Approach 2:
The patent uses cryptographic hash functions that act as a form of digital fingerprinting. Any change in the evidence data, no matter how small, causes a complete change in the hash value (similar to how a small color change can indicate paint deterioration). This provides simple yet effective tampering detection through hash verification.
3Reliability
If data is made immutable through blockchain storage, then data integrity is improved, but the device complexity increases due to blockchain integration
Solution Approach 1:
The patent extracts only the essential cryptographic elements (hash values and minting transaction data) and stores them on the blockchain, while keeping the bulk of the actual evidence data in traditional storage systems. This extraction approach achieves immutability for the critical integrity verification elements without requiring the entire system to be blockchain-based, thus reducing overall complexity.
Solution Approach 2:
The patent segments the storage system into two parts: a traditional storage component for holding the actual evidence data, and a blockchain component for holding the cryptographic proof of integrity. This segmentation allows each component to be optimized independently, maintaining simplicity where possible while achieving immutability where required.
Data Source
AI summary
A server computer system comprises a communications module; a processor coupled to the communications module; and a memory coupled to the processor, the memory storing processor-executable instructions which, when executed, configure the processor to obtain, via the communications module, immutable evidence data; mint the immutable evidence data as a non-fungible token that includes metadata identifying at least a date of creation of the non-fungible token; and store the non-fungible token in a block of a blockchain network.