We are small team and focused on development. We are not lawyers so its bit hard for us to decide which license to use, we were using GPL in the past but change to our custom license. The code is for open source purpose but we wanted to preserve our credits
1. We wanted to preserve copyrights
2. We wanted to preserver powered by notice
That is the goal we created our custom license, if any license suited this please let us know, we are open for discussion and happy to change to OSI approved license.
We have finally decided to switch the license to Cryptographic Autonomy License version 1.0 OSI approved recently.