ETHGlobal

ETHGlobal Buenos Aires

Citrea

$10,000

About

Citrea is EVM compatible, the first ZK Rollup on Bitcoin, featuring a BitVM-based trust-minimized bridge called Clementine. Ensuring on-chain verifiability and data availability on Bitcoin, Citrea makes it possible to build everything as a Bitcoin Application - a ₿app. Through its trust-minimized (1-of-N) Bitcoin bridge Clementine and fully EVM-compatible execution environment, Citrea unlocks the trillion-dollar asset base of Bitcoin to be utilized in DeFi and money markets, tapping a massive liquidity, without any change to Bitcoin’s consensus.

Prizes

🐸 Best Degen Bapps (Bitcoin Applications) ⸺ $6,000

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1st place

$4,000

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2nd place

$2,000

Citrea opens the door to an entirely new class of Bitcoin powered experiments. Some brilliant, some chaotic, some beautifully unhinged. The Best Degen Bapp track is for the builders who think outside the box, break assumptions, push boundaries, and ship the kind of ideas that make people say: “Wait… you built what on Bitcoin?” This track looks for creativity in its rawest form, whether your project looks impractical, shockingly clever, or something so new that it breaks normal categories. If it makes us laugh, mock, or rethink what Bitcoin applications can be, you're in the right place. We can't actually give examples for this category but here are few we could think of: Bitcoin native social experiments: Chaotic coordination games, on-chain memes with mechanics, self destroying apps for privacy (somehow). Game-Fi but Bitcoinized: Mine to Mint apps, Burn to mint puzzles, proof of vibes systems, mining inspired game mechanics. Useless but brilliant tools: Anything that feels like why we need crypto for this but is actually genius. Weird primitives: Be creative. Look for mechanisms no one asked for but everyone suddenly needs. “Why not?” apps: If it breaks regular models, that’s the energy we look for. Look for daily apps and how to enable them Bapps. If your project fits nowhere else, it probably belongs here. Building for this track does not prevent you from also applying to the Innovation track. Let chaos inspire you.

Qualification Requirements

- Integrate Citrea (contracts deployed to Citrea testnet and/or frontend using Citrea RPC) - Explain how you’re using Citrea in the description - Be open source (public GitHub during judging) - Show a working demo (ideally a deployed live link, or video + alternatively provide instructions to build & run on a local environment or showcase to the Jury at booth) - Include any necessary links, deployed addresses/tx hashes, and etc.

Links and Resources

Hackathon Survival Guide: Citrea 101

https://www.notion.so/citrea/EthGlobal-New-Delhi-Citrea-Hacker-Survival-Guide-279c176f7c8080e59cd6cfdf19dbd242

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Developer Documentation

https://docs.citrea.xyz

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Ecosystem Tooling

https://docs.citrea.xyz/developer-documentation/ecosystem-tooling

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Citrea Devs @BA

https://t.me/citreadevsba

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🍊 All-In Bitcoin ⸺ $4,000

🥇

1st place

$2,500

🥈

2nd place

$1,500

This track is for teams who want to work on ideas that strengthen Bitcoin’s role in the world: sound money, global access, resilience, interoperability, and long-term utility. If your project focuses on unlocking new possibilities for Bitcoin users or enhancing Bitcoin’s functionality, this is the right place for it. Some areas of interest include: - Privacy and sovereign money systems - Bitcoin x AI x Citrea integrations - Bitcoin-secured RWAs or new asset models - Community-focused Bitcoin apps such as ROSCAs and savings circles - Cross-chain and interoperability solutions - Infrastructure that improves security, scalability or user experience - Any novel concept that uses Citrea to extend what Bitcoin can do This track is all about building the next generation of Bitcoin applications and tools with clear purpose and long term impact. If your work contributes to the future of Bitcoin, you belong here.

Qualification Requirements

- Integrate Citrea (contracts deployed to Citrea testnet and/or frontend using Citrea RPC) - Explain how you’re using Citrea in the description - Be open source (public GitHub during judging) - Show a working demo (ideally a deployed live link, or video + alternatively provide instructions to build & run on a local environment) - Include any necessary links, deployed addresses/tx hashes, and etc.

🍊 A Guide to Building Bitcoin Applications o...

Citrea is the first ZK Rollup on Bitcoin with EVM compatibility, featuring a trust-minimized bridge called Clementi...

This workshop is happening in-person

04:30 PM UTC-03 — Friday, Nov 21, 2025 in Workshop Room 3