Receipt-Linked NFT Metadata for Verified Purchaser Reviews
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing systems lack a reliable method to guarantee the authenticity of product purchases and record evaluation information from actual purchasers using non-fungible tokens (NFTs), which is crucial for maintaining trust and preserving product value in secondary trades.
Innovation Solution
A method involving a smart contract on a blockchain network to issue NFTs associated with receipts, record evaluation information from actual purchasers in metadata, and verify the authenticity of writers through wallet addresses and blockchain records.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If evaluation information is recorded in NFT metadata, then authenticity of purchase and trust in secondary trades is improved, but system complexity increases due to blockchain integration and smart contract requirements
Solution Approach 1:
The patent introduces a smart contract as an intermediary mechanism that automatically verifies purchase authenticity and enables evaluation information recording. The smart contract acts as a mediator between the NFT system and the evaluation recording system, handling authentication logic without requiring complex manual verification processes. This resolves the contradiction by providing reliable authenticity guarantees through automated smart contract execution rather than complex manual systems.
Solution Approach 2:
The patent replaces traditional mechanical verification systems with blockchain-based cryptographic verification. Instead of manual authentication processes, the system uses blockchain's immutable ledger and cryptographic signatures to verify purchase authenticity. This substitution provides higher reliability with simpler operational logic, as the blockchain system automatically ensures authenticity without requiring complex administrative overhead.
2Reliability
If purchase authenticity is verified through blockchain, then trust in secondary trades is improved, but transaction time increases due to blockchain confirmation requirements
Solution Approach 1:
The patent implements preliminary action by recording purchase information and issuing NFTs during the initial purchase transaction rather than attempting verification later. The smart contract automatically mints the NFT and records evaluation information at the time of purchase, so that when secondary trades occur, the authenticity is already established in the blockchain ledger. This eliminates the need for time-consuming verification processes during subsequent trades.
Solution Approach 2:
The patent ensures continuity of useful action by maintaining the NFT and its metadata continuously in the blockchain ledger from initial purchase through secondary trades. The evaluation information remains permanently recorded and accessible, allowing instant verification during secondary transactions without requiring re-verification or additional confirmation steps. This continuous availability eliminates transaction delays.
3Reliability
If evaluation information is stored in NFT metadata, then product value preservation is improved, but data storage capacity is limited by blockchain constraints
Solution Approach 1:
The patent extracts large media files (images, videos) from the blockchain and stores them in external decentralized storage systems like IPFS or AWS S3. Only the metadata containing links to these files and essential verification information is stored in the NFT on the blockchain. This extraction approach preserves product value through immutable blockchain records while overcoming storage capacity limits by utilizing external storage infrastructure.
Solution Approach 2:
The patent introduces external storage systems as intermediaries between the blockchain and the actual media files. The blockchain serves as the trust anchor storing only lightweight metadata, while external storage systems handle the bulk data. This intermediary architecture allows extensive data storage capacity while maintaining the integrity and value preservation benefits of blockchain-based NFTs.
Data Source
AI summary
Provided is a method of processing a non-fungible token (NFT) by an electronic device, the method including executing a smart contract to process an NFT associated with a receipt by a processor of the electronic device connected to a computer network including a blockchain network, and the smart contract includes one or more instructions, and the one or more instructions are configured to, when executed, cause the processor to identify a digital file regarding a receipt related to a purchase of a product and an issuance request for an NFT associated with the receipt, issue the NFT associated with the receipt, identify evaluation information about the product, and if a writer of the evaluation information about the product is a purchaser that performs the purchase of the product, record the evaluation information about the product in metadata of the NFT associated with the receipt.