SEIDULLAYEV M.K. A Practical Blockchain-Based Authentication Approach for Secure IoT Systems Using Spatial Verification. American Journal of Applied Science and Technology, [S. l.], v. 6, n. 05, p. 49–52, 2026. DOI: 10.37547/ajast/Volume06Issue05-08. Disponível em: https://theusajournals.com/index.php/ajast/article/view/10375. Acesso em: 20 oct. 2026.