T. Thiyagarajan (2020) “Metaverse & Human Digital Twin: Digital Identity, Biometrics, and Privacy in the Future Virtual Worlds”, International Journal on Recent and Innovation Trends in Computing and Communication, 8(11), pp. 23–36. Available at: https://ijritcc.org/index.php/ijritcc/article/view/11051 (Accessed: 2October2025).