A Survey: Implementations of Non-fungible Token System in Different Fields. - A. N. M. Sajedul Alam; Junaid Bin Kibria; Al Hasib Mahamud; Arnob Kumar Dey; Hasan Muhammed Zahidul Amin; Md Sabbir Hossain; Annajiat Alim Rasel (CoRR, 2022)