Quarckchain coin

QuarkChain is a flexible, scalable, and user-oriented blockchain infrastructure by applying blockchain sharding technology. It is one of the first public chains that successfully implemented state sharding technology for blockchain in the world.

QuarkChain is a wonderful blockchain project. Let's do promotional activities for this project to make money.

https://qbounty.quarkchain.io/signup?invitecode=fbhj0s