Revolutionizing Healthcare Supply Chains With a Blockchain Framework for NFT-Based Product Certification and Inventory Management

The proposed framework leverages Non-Fungible Tokens (NFTs) to revolutionize supply chain management by ensuring product authenticity. Each product document stored in a repository is minted as an NFT. The NFT is a digital twin of the product's certification, containing metadata for tracking its origin, authenticity, and key details. When a buyer verifies the product's authenticity, the NFT is burned as a final step, ensuring that the product cannot be re-certified without a new issuance. This framework creates a transparent, tamper-proof, and decentralized system to enhance trust and accountability in the supply chain. By integrating the Ethereum-based Pure Chain network and smart contracts, this solution benefits from high availability, immutability, and the ability to automate key processes. The system verified and retrieved the base URI of a designated product identity (ID) whose NFT was stored in a GitHub repository. A vulnerability check of the smart contract codes with solidcheck.io shows that the smart contracts are 84 % secured with no serious security threats, as all considerations were made in the contract code design.