In the era of Ico projects, The Ico world has changed human lives by a lot. However, In this era, Authpaper is also trying to give something real to this innovative world, Physical mailing takes a lot of time and spends a lot of resources. Current digital delivery solutions are mostly centralized, privacy cannot be guaranteed. Authpaper Delivery combines blockchain, BT, cryptography and other current technologies to build a peer-to-peer digital data delivery platform. You can also take part in their bounty programme and can earn lots of tokens.
https://bountysuite.com/bounty-programs/authpaper.html