Updated on Feb. 19, 2020. The conference is cancelled. See it's website for details.
Personium project will be presenting at Open Source Conference 2020 Tokyo/Spring, held on Feb. 21-22, 2020.
Previous presentation available here: https://personium.io/blog/2019/11/15/OSC2019-Tokyo-Fall/
Updated on Feb. 26, 2020. We published the presentation slides. (Only Japanese)