Welcome to the Bitcoin++ Privacy Edition Hackathon!

This is the hackathon site for the bitcoin++ privacy edition hackathon in Riga, Latvia.

The main hackathon competition will be open ended (overall 1st, 2nd, 3rd). Anything involving bitcoin is fair game. Bonus points for privacy related projects.

There are optional challenges that hackers may create projects around. Submitting for a challenge is optional, and ALL projects will be considered for the main competition.

Logistics 

Thursday (8/7/25)
Kickoff Presentation
: 11:45 AM (EEST UTC+3:00)
Hacking Begins: 1:15 PM
Submission Deadline: 3:15 PM - On Devpost

Report for Judging Expo: 3:30 PM
Judging Expo: 3:45 PM - 4:45 PM - MAX
3 minutes (practice & time yourself)

Friday (8/8/25)
Finalist Presentations
: 11:30 AM - 12:15 PM - 5 minutes per team (main stage)
Awards & Closing
: 4:15 PM

Requirements

Project Submission

All teams must submit their projects on Devpost (this site). Do this early so you don't forget.

Judges will primarily use the presentations to select winners. They may reference your Devpost sumbissions as well.

This event will judged using a science fair expo format. Judges will walk around and adjudicate projects in parallel.

Finalists will present on stage.

- Submission Deadline: 3:00 PM - On Devpost
- Report for Judging Expo: 3:30 PM
- 3 minutes per team (practice & time yourself)
- Finalist Presentations: Friday @ 11:30 AM - 12:15 PM - 5 minutes per team


Judging Criteria

To judge hackathon projects, we follow the global standard for performance-based judging: the Olympics Women’s Gymnastics Rubric. Judges will be evaluating each hackathon team’s performance based on the following criteria:
- Routine Difficulty: Project idea, Potential impact of project, ambition
- Routine Execution: Project achievement, What you actually built, Does it work
 - General Effect: Swag Factor, Presentation, Applicability to theme

Hackathon Sponsors

Prizes

$5,700+ in cryptocurrency
$5,700+ in crypto
+ other prizes
1st Overall
Cryptocurrency logo
$2,850 of Bitcoin
1 winner

2.5 Million Satoshis + Tickets to future Bitcoin++ event + Trophy

2nd Overall
Cryptocurrency logo
$1,700 of Bitcoin
1 winner

1.5 Million Satoshis + Tickets to future Bitcoin++ event + Trophy

3rd Overall
Cryptocurrency logo
$1,150 of Bitcoin
1 winner

1 Million Satoshis + Tickets to future Bitcoin++ event + Trophy

ROT13 Going on 30 - Best Beginner Hack
1 winner

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.

Cloak & Dagger Award - Best Hack for Censorship Resistance
1 winner

Tickets to future Bitcoin++ event - For the project that best thwarts surveillance, evades censorship, or empowers free expression in hostile environments.

ChaCha Slide Award - Best use of Cryptography
1 winner

Tickets to future Bitcoin++ event - For the project with most novel, clever, or effective use of cryptography.

Honorable Mentions
6 winners

Tickets to future Bitcoin++ event - Awarded to up to 6 "honorable mentions".

Devpost Achievements

Submitting to this hackathon could earn you:

Judges

niftynei

niftynei
Base58

elsirion

elsirion
Fedimint

Ben Carman

Ben Carman
Spiral

Peter Todd

Peter Todd
OpenTimestamps

Super Testnet

Super Testnet
Independent

Femi Longe

Femi Longe
Human Rights Foundation

Erik Cativo

Erik Cativo
Independent

Max Hillebrand

Max Hillebrand
Cypherpunk

Jesse Shrader

Jesse Shrader
Amboss

Judging Criteria

  • Routine Difficulty
    Quality of your Project Idea. Potential impact of your idea. Ambition/scope of the project (given the 2 hour deadline).
  • Routine Execution
    Project achievement. What you actually built. Does it work? Were you able to solve the problem you set out to solve?
  • General Effect
    Swag Factor, Presentation, Applicability to theme (privacy)

Questions? Email the hackathon manager

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Hackathon sponsors

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