# bitcoin++, let’s hack payments

**Open Source: 1K usd**
Best use of Bitcoin and Lightning Open Source libraries and tools

**Rootstock 2K usd**
Best use of Rockstocks dev tools

**RSK & Bitcoin 1K usd**

**UX 500usd** The project with the best User Experience.

**Use Case 500usd**
Best uses case for payments and remitances in Argentina.