Effects of a Simple Relay Network on the Bitcoin Network. - Kai Otsuki; Yusuke Aoki; Ryohei Banno; Kazuyuki Shudo (AINTEC, 2019)

SimBlock: A Blockchain Network Simulator. - Yusuke Aoki; Kai Otsuki; Takeshi Kaneko; Ryohei Banno; Kazuyuki Shudo (INFOCOM Workshops, 2019)

Quantitatively Analyzing Relay Networks in Bitcoin. - Kai Otsuki; Ryohei Banno; Kazuyuki Shudo (Blockchain, 2020)

Impact of Saving Attacks on Blockchain Consensus. - Kai Otsuki; Ryuya Nakamura; Kazuyuki Shudo (IEEE Access, 2021)

Enhancing Blockchain Decentralization through Epoch Age-Based Validator Selection: The WEAVE Algorithm. - Kai Otsuki (BCCA, 2024)