C. Garrocho, E. Klippel, A. Machado, C. Ferreira, C. Cavalcanti, and R. Oliveira. " Blockchain-based Machine-to-Machine Communication in the Industry 4.0 applied at the Industrial Mining Environment", in Proceedings of theĀ 10th Brazilian Symposium on Computing Systems Engineering, Evento Online, 2020, pp. 127-134.