Book Review: Malviya R, Sundram S. (Eds.). Blockchain for Healthcare 4.0: Technology, Challenges, and Applications (1st ed.). CRC Press; 2023. South African Journal of Public Health, [S. l.], v. 8, n. 3, p. e3808, 2026. DOI: 10.7196/. Disponível em: https://samajournals.co.za/index.php/sajph/article/view/3808. Acesso em: 17 apr. 2026.