An Examination of the Blockchain Technology: Challenges and Future Opportunities . International Journal of Engineering and Computer Science, india, v. 11, n. 11, p. 25620–20627, 2022. DOI: 10.18535/ijecs/v11i11.4706. Disponível em: http://ijecs.in/index.php/ijecs/article/view/4706. Acesso em: 25 apr. 2025.