Talking about 'public' or 'permissioned'/'private' blockchains does not do the flexibility of the ecosystem justice. Even considering the in-betweens does not do the trick. In this first-ever-published recording of our twice-weekly internal knowledge sessions, our Head of Research, Dr. Lewin Boehnke, looks at the landscape and argues that there are at least three characteristics that have to each individually be considered on a private-public scale that determine the use cases of that cube.