Chain Thread: Blockchain-Powered Product Verification and Authenticity Tracking

Abstract: Fake Product Identification through Blockchain is a decentralized application (dApp) designed to combat counterfeit goods by providing a transparent, secure, and efficient product verification system. The platform integrates Blockchain technology with QR Codes and NFC (Near Field Communication) tags, ensuring product authenticity from registration to verification. The system allows manufacturers to register products on the blockchain, associating each product with a unique identifier (serial number) linked to a QR code or NFC tag. Sellers and consumers can then scan the product's code using the dApp to verify its authenticity in real-time, accessing the product's complete history stored on the blockchain. By utilizing MetaMask for secure user authentication, the platform ensures that only authorized users can participate in product registration, ownership transfers, and verification. The application is powered by advanced smart contracts on the Ethereum blockchain, which manage product registration, ownership transfer, and validation. The system applies prompt engineering and blockchain storage to ensure product data is immutable and tamper-proof. The architecture leverages the Ethereum network for decentralized storage, ensuring transparency and security at every stage of the product lifecycle. A case study showcasing a product verification scenario demonstrates the ease of use for consumers and sellers alike, enhancing trust in product authenticity and streamlining the buying process. This paper outlines the system's design, blockchain integration, and real-world applications, highlighting the impact of combining NFC/QR technology with blockchain to ensure secure, transparent product verification.