“DESIGN AND IMPLEMENTATION OF A BLOCKCHAINBASED COUNTERFEIT PRODUCT DETECTION SYSTEM USING SMART CONTRACTS AND ENCRYPTED QR CODES”. International Journal of Engineering Research and Science & Technology 22, no. 2(1) (April 30, 2026): 2254–2261. Accessed August 16, 2026. https://ijerst.org/index.php/ijerst/article/view/3013.