SAYED, Ahmed M. El; MOSTAFA, Tarek R.; NOUR, Khaled S. Hardening Local SHA-256 (Secure Hash Algorithm 256-Bit) Chained Clinical Trial Logs Against Post-Hoc Manipulation Using Separated Seed Custody. Journal of Advanced Scientific Computing and Applied Research, [S. l.], v. 16, n. 7, p. 1–15, 2026. Disponível em: https://scichronicle.com/index.php/JASCAR/article/view/Hardening-Local-SHA-256. Acesso em: 2 nov. 2026.