Status · Closed
Event timeline ·View schedule →
Hackathon control board
Istanbul 2025, scaling edition
Bitcoin++ Scaling Edition
Build something real. Find collaborators, choose a challenge, ship your project, and put it in front of the bitcoin++ community.
§ Featured builds
Built in public.
Winning and featured projects from this hackathon. Explore the full gallery →
- Overall winner 2nd Overall
Core LLM
Unassigned
LLM trained specifically on the Bitcoin Core codebase that gives specific answers to train and educate users on how bitcoin _really_ works.
§ More winning builds
Honorable mentions & sponsor prizes
- Award winner Honorable Mentions
KrediLink
Unassigned
We enable businesses to issue decentralized trade credit in Bitcoin, backed by reputation and Chaumian e-credit—unlocking trust, liquidity, and transparency in global commerce.
- Award winner Best use of STARKs
Bridgestr
Unassigned
Bidirectional bitcoin and nostr mempool project
§ Prizes
Prize pool.
Ranked rewards for the top projects. Challenges can stack on top.
[ Award ]
Best use of STARKs
2 Million Satoshis - Build projects that leverage STARKs (Scalable Transparent Arguments of Knowledge) for Bitcoin or its ecosystem (Lightning, Nostr, Cashu, Ark, Liquid, etc.).
Prizes
Best use of STARKs prize
2M satoshis
2 Million Satoshis - Build projects that leverage STARKs (Scalable Transparent Arguments of Knowledge) for Bitcoin or its ecosystem (Lightning, Nostr, Cashu, Ark, Liquid, etc.).
[ Award ]
Best Beginner Hack
Tickets to future Bitcoin++ event - Only eligible to teams where EVERY member is a high-school/undergraduate student OR a first-time contributor to open-source bitcoin.
Prizes
Best Beginner Hack — future Bitcoin++ ticket
1 satoshis
One ticket to a future Bitcoin++ event for each winning team member.
[ Award ]
Best Privacy Hack
Tickets to future Bitcoin++ event - For the project that best protects privacy, evades censorship, or empowers free expression in hostile environments.
Prizes
Best Privacy Hack — future Bitcoin++ ticket
1 satoshis
One ticket to a future Bitcoin++ event for each winning team member.
[ Award ]
Honorable Mentions
Tickets to future Bitcoin++ event - Awarded to up to 6 “honorable mentions”
Prizes
Honorable Mentions — future Bitcoin++ ticket
1 satoshis
One ticket to a future Bitcoin++ event for each winning team member.
[ Award ]
Moon Math Award
Tickets to future Bitcoin++ event - For the team with the boldest or most novel exploration into cryptography.
Prizes
Moon Math Award — future Bitcoin++ ticket
1 satoshis
One ticket to a future Bitcoin++ event for each winning team member.
[ Award ]
Reality Check Award
Tickets to future Bitcoin++ event - For the team whose project could realistically launch and attract users on mainnnet soon™.
Prizes
Reality Check Award — future Bitcoin++ ticket
1 satoshis
One ticket to a future Bitcoin++ event for each winning team member.
[ Award ]
Best Design
Blockstream Jade Hardware Wallet - For the project with the most intuitive, polished, and visually appealing user experience.
§ The judges
7 judges.
Scoring is handled by the assigned hackathon judges.
