"A Minimalist Implementation of Electronic Money" in Japanese: 電子マネーの最小限主義的な実施 →
The link above is to the Japanese version. “A Minimalist Implementation of Electronic Money” in English can be found here.
A Partisan Nonpartisan Blog: Cutting Through Confusion Since 2012
The link above is to the Japanese version. “A Minimalist Implementation of Electronic Money” in English can be found here.