ETHIstanbul

ETHIstanbul is a 2-days hackathon & conference taking place in Istanbul from September 5 to 7, 2025. It's designed for developers, researchers, and teams working on Ethereum to come together, meet in person, and build.

The event is open to anyone working on any Ethereum-related idea. The focus is on collaboration with Istanbul as a meeting point between different parts of the world.

📅 Important Dates (GMT+3)

• Hacker Onboarding Opens: August 15, 2025

• ETHIstanbul Starts: Friday, September 5th at 10:00

• Project Submission Deadline: Sunday, September 7th at 12:00

• Demo Day & Final Pitches: Sunday, September 7th (afternoon)

• Closing Ceremony: Sunday, September 7th 

• Bounties Distributed By: within 2 weeks after the event

🏆 ETHIstanbul Hackathon Tracks

At ETHIstanbul, we aim to reward outstanding innovation without restricting builders to rigid categories. Instead of predefined tracks, we’re celebrating the spirit of creativity and impact across the entire Ethereum ecosystem.

 1. Real Blockchain Use Cases

Use blockchain technology to make a real-world impact.The goal: solve an actual problem with decentralization. A polished UI isn’t mandatory, but recommended. What matters most is showing how blockchain can bring real value to the world.

2. Blockchain + AI = ?

The 21st century isn’t defined by one revolution, but two: Blockchain and Artificial Intelligence. In this track, the only rule is to combine both in your project. No limits, no restrictions, just your imagination. 💭

👉 ETHIstanbul is here to support projects that merge creativity, decentralization, and cutting-edge technology.

🏆 1st Place: $3,500🥈 2nd Place: $2,000🥉 3rd Place: $1,000

3. 10 Years of Ethereum

Ethereum has turned 10 this year, and we are celebrating it in the best way we know: backing builders.🏆 1st Place: $1,500

The 10 Years of Ethereum Track is open to all Ethereum projects in the hackathon. No limits, no minimums; just bring something meaningful to the ecosystem.

🏆 1st Place: $1,500

👥 ETHIstanbul is open to:

• Ethereum developers (newcomers & veterans)

• ZK builders and researchers

• Designers, product people & protocol thinkers

• Students, hackers, and indie builders

• Ecosystem teams and open-source contributors

• Any kind of builders

All participants must register on Taikai and hold a valid ETHIstanbul hacker ticket to submit projects.

To be eligible for judging, teams must submit the following via TAIKAI:

• A link to a public code repository (e.g. GitHub)

•  A demo video (optional - max 90 seconds) or presentation (max 5 slides)

• (Optional) Live URLs or contract addresses (testnet/mainnet)

• A team contact (Telegram or Discord) for communication during judging!!!

All code must be written during the event. Pre-written or plagiarized code will disqualify the submission.