IoT-Based Autonomous Pay-As-You-Go Payment System with the Contract Wallet. - Shinya Haga; Kazumasa Omote (Secur. Commun. Networks, 2021)

Multi Pair Swap-Based Weather Derivative DeFi. - Shinya Haga; Taisei Takahashi; Kazumasa Omote (QRS Companion, 2022)

Blockchain-Based Autonomous Notarization System Using National eID Card. - Shinya Haga; Kazumasa Omote (IEEE Access, 2022)