Event Details
Date & Time
Saturday, November 29, 2025 at 7:30 AM - Sunday, November 30, 2025 at 5:00 PM
1 day
Location
ECE Paris
Paris, France
10 Rue Sextius Michel, 75015 Paris
About
Hack4Good XRPL & ECE Sustainable Solutions is a hackathon focused on using blockchain to tackle social and environmental challenges.
Over the course of two intensive days, participants will have the opportunity to design innovative, engaging, and fun solutions while aiming for real-world impact on concrete issues. Experienced mentors will guide the teams, and the diversity of participants, will foster synergies and original ideas.
We encourage everyone to think outside the box: combining social utility, environmental impact, and playful elements to make their solutions both meaningful and captivating.
This event is organized jointly by XRPL Commons and the engineering school ECE Paris, and it is open to all, whether you are a student, professional, or blockchain enthusiast.
You will find more technical information on this GitHub repo.
Competition Tracks
Crypto for Good
You need to design real on-chain applications that address social and environmental challenges, but with a creative twist: make them interactive, fun, and engaging.
Think gamified solutions, tokenized incentives, social impact dashboards, or creative uses of NFTs, anything that combines technical depth with visible impact.
Feel free to think outside the box; we trust you to surprise us!
Available Prizes:
First Place - XRPL
Second Place - XRPL
Third Place - XRPL
Jury's Special Mention
Jury's Special Mention
Schedule
Doors open & breakfast
Sat, Nov 29 • 7:30 AM - 7:30 AM
Registration and team formation
Sat, Nov 29 • 7:30 AM - 8:00 AM
Welcome speeches
Sat, Nov 29 • 8:00 AM - 8:30 AM
Let the hacking begin !
Sat, Nov 29 • 8:30 AM - 8:30 AM
Workshop: Introduction to the XRP Ledger
Sat, Nov 29 • 10:00 AM - 10:30 AM
Lunch break
Sat, Nov 29 • 12:00 PM - 1:00 PM
Dinner break
Sat, Nov 29 • 6:00 PM - 7:00 PM
Closing
Sat, Nov 29 • 9:00 PM - 9:00 PM
Doors open & breakfast
Sun, Nov 30 • 8:00 AM - 8:30 AM
Project submission
Sun, Nov 30 • 11:00 AM - 11:00 AM
Lunch break
Sun, Nov 30 • 12:00 PM - 1:00 PM
Speeches and jury deliberation
Sun, Nov 30 • 1:00 PM - 3:00 PM
Winner ceremony
Sun, Nov 30 • 3:00 PM - 3:30 PM
Closing
Sun, Nov 30 • 4:00 PM - 4:00 PM