Computational experimental evaluation of the time variance of cryptocurrency mining using cryptographic hash functions. - Kei Ikebe; Kouichi Sakurai (BIOTC, 2022)

Analysis of Variance of Searching Time for Serial Concatenation of Graph-Clique based Cryptocurrency Mining. - Kei Ikebe; Kouichi Sakurai (CANDARW, 2022)

Application and Limitations of Digital Signature Schemes for Implementing Non-Fungible Token (NFT). - Kei Ikebe; Yudai Hata; Toru Nakamura; Takamasa Isohara; Kouichi Sakurai (ASSE, 2023)