Counterfeit Product Detection Using Algorand Blockchain

Counterfeit products are creating a huge problem in global markets, causing huge financial losses to companies and damaging consumer trust. Traditional ways of checking product authenticity are failing to keep up with modern counterfeiting techniques. To solve this, we proposed a blockchain-based counterfeit product detection system using the Algorand blockchain. Upon registration in the system, each product gets a unique Quick Response (QR) code containing its details, which is then linked to a secure digital record on the Algorand blockchain. When scanned by the consumer, the system checks the details of the product stored on the blockchain along with the data stored off-chain and verifies whether it is a counterfeit or not. Using Algo-rand’s Pure Proof-of-Stake (PPoS) consensus, the system ensures fast, low-cost, and reliable verification without the requirement of a central authority. This approach improves security, reduces fraud, and allows customers to verify products easily. While some blockchain-based authentication systems include manufacturer registration and additional security measures, this paper mainly focuses on registering and verifying products.