Certhash-Blockchain Based Certificate Verification System. International Research Journal on Advanced Engineering Hub (IRJAEH), [S. l.], v. 4, n. 05, p. 3724–3727, 2026. DOI: 10.47392/IRJAEH.2026.0488. Disponível em: https://irjaeh.com/index.php/journal/article/view/1780.. Acesso em: 6 jun. 2026.