According to the guidelines, 3.1.5 Cryptocurrencies: (iii) Exchanges: Apps may facilitate transactions or transmissions of cryptocurrency on an approved exchange, provided they are offered only in countries or regions where the app has appropriate licensing and permissions to provide a cryptocurrency exchange.
For a cryptocurrency exchange, what does "appropriate licensing and permissions" exactly mean? Is there a specific definition? Does Apple check for specific licenses for each region, meaning you can have the app live in a region where licensing is not required? Or does Apple require a license to permit an app to be live in any region?