Blockchain-based e-commerce warranty system using non-fungible tokens (NFTs): A Smart Contract Framework for Fraud-Resistant and Transferable Product Warranties. Journal of Interdisciplinary Science & Technology, [S. l.], v. 1, n. 3, p. 74–77, 2026. Disponível em: https://onlinejist.com/index.php/jist/article/view/33. Acesso em: 22 oct. 2026.