As lumberjack said, you should look into GNU Taler [1]. Their goal is precisely to provide a privacy-enabled form of payments that is compatible with the rule o

As lumberjack said, you should look into GNU Taler [1]. Their goal is precisely to provide a privacy-enabled form of payments that is compatible with the rule of law in a democracy. [1] https://taler.net/ https://taler.net/