2023 5th Blockchain and Internet of Things Conference (BIOTC 2023) aims to provide a forum for researchers, practitioners, and professionals from the industry, academia and government to discourse on research and development, professional practice in Blockchain and Internet of Thing. BIOTC 2023 will be held in Osaka, Japan during July 21-23, 2023. Welcome scholars and researchers working in the field of Blockchain and Internet of Things from all over the world to attend the conference and share your experiences and lessons with other enthusiasts, and develop opportunities for cooperation.