Fake Product Identification Using Block Chain

Abstract

Counterfeit products, especially in sectors like
pharmaceuticals, pose serious threats to consumer
safety and lead to significant financial losses.
Traditional supply chains and online transactions often
rely on third-party intermediaries, increasing the risk of
data tampering and fraud. This project proposes a
blockchain-based fake product identification system to
address these issues by leveraging the decentralized,
tamper-proof nature of blockchain technology. In this
system, product details and barcodes are converted into
digital signatures and stored securely on the Ethereum
blockchain using Solidity smart contracts. The
application consists of two main user roles: admin, who
adds product details and manages users, and user, who
verifies product authenticity. Users can retrieve product
details and authenticate barcodes by comparing the
scanned barcode's digital signature with the one stored
on the blockchain. The system ensures data integrity
and prevents counterfeit products by detecting any
mismatch in digital signatures due to tampering. The
blockchain’s distributed hash verification further
enhances security by detecting inconsistencies across
nodes. The application is built using Flask for the
backend and interacts with the Ethereum blockchain to
perform real-time verification, offering a decentralized,
secure, and transparent method for product
authentication.