RGB
RequiredIssue, transfer and verify assets on Bitcoin with client-side validation.
Powered by local AI
Two days to build self-custodial dollar apps driven by models that run on device. No cloud, no custodian.

First prize
Plus a guaranteed place in the CypherTank semifinals, Lugano's Bitcoin startup contest. Second prize €1,500. Third prize €500.
Why local AI
An agent that handles your money should not send your finances to someone else's server. With local models, self-custody and Bitcoin settlement, the entire flow stays in the user's hands.
How it works
Now — 3 Oct
Tell us about your background and what you want to build.
24 Sep
Tool tutorials published for every applicant.
4 — 12 Oct
Selection and confirmation of admitted builders.
13 Oct
Live session with the mentors for confirmed participants.
17 — 18 Oct
Two days at BLOX, final demos and awards on Sunday.
FAQ
No. You do not need previous experience with RGB or Bitcoin. Recorded tutorials will be published before the event and mentors will be on site on both days. What matters most is that you want to build something.
Yes. Mention it in the form and we will help you find teammates before the event or on the first morning. Teams will be composed of two to four people.
We look for motivation and a clear vision of what you want to build around AI and payment infrastructure, not a long CV. Places are limited to around 70.
The hackathon is free to attend. Saturday lunch and coffee break, plus Sunday breakfast, are included. Participants only cover their own travel and accommodation.
The tools
Issue, transfer and verify assets on Bitcoin with client-side validation.
Run AI models directly on device, with no cloud and no per-call cost.
Embed a wallet into your app so users can hold, sign and send with their own keys.
What you can build
Local AI, payments and wallets for digital dollars you hold yourself. Bitcoin is the settlement layer underneath, and we will show you how it works.
Invoicing, payroll and cross-border flows
Wallets, savings and shared accounts
On-device budgeting and fraud alerts
Local AI proposes, you approve
The venue
The hackathon takes place at BLOX Space, in central Turin.