Lara Dourado, Paulo Silva, Clóvis Peres, and Daniel Díaz, “Challenges and Opportunities for a Fiscal Blockchain”, ASRJETS-Journal, vol. 87, no. 1, pp. 117–137, Apr. 2022, Accessed: Sep. 12, 2025. [Online]. Available: https://www.asrjetsjournal.org/American_Scientific_Journal/article/view/7520