SECURE AND PRIVATE ANALYTICS OF HEALTHCARE RECORDS IN MULTI-TENANT CLOUD ENVIRONMENTS USING BLOCKCHAIN. International Journal of Engineering Research and Science & Technology, [S. l.], v. 22, n. 2(4), p. 1518–1528, 2026. DOI: 10.62643/. Disponível em: https://ijerst.org/index.php/ijerst/article/view/3902. Acesso em: 28 jul. 2026.