From Cryptocurrency to Smart Contracts: The Expanding Scope of Blockchain . International Journal of Computer Technology and Electronics Communication, [S. l.], v. 3, n. 4, p. 2661–2666, 2020. DOI: 10.15680/IJCTECE.2020.0304003. Disponível em: https://ijctece.com/index.php/IJCTEC/article/view/149. Acesso em: 27 oct. 2025.