SYSTEM FOR IDENTIFYING FAKE PRODUCT USING BLOCKCHAIN TECHNOLOGY . International Journal of Engineering Research and Science & Technology, [S. l.], v. 21, n. 2, p. 1990–1993, 2025. DOI: 10.5281/zenodo.15575562. Disponível em: https://ijerst.org/index.php/ijerst/article/view/980. Acesso em: 9 nov. 2026.