logoETHGlobal Istanbul




Aleo is a new Layer-1 blockchain and developer platform that leverages zero-knowledge technology to enable builders to create private and programmable web applications. It is designed from the ground up and comprised of a decentralized operating system (snarkOS), a zero-knowledge virtual machine (snarkVM), and a zero-knowledge DSL and complier (Leo).


🏆 Grand Prize$10,000
Up to 4 teams will receive $2,000
Top 5 teams building applications using Leo, based on one of the following categories: 🎮 Gaming 🪪 Identity & Authentication 💰 ZeFi (zero-knowledge DeFi) 🤖 zkML (zero-knowledge machine learning) 🗳️ Voting & Governance All application ideas are valid. We are primarily looking for feature-complete dApps that have a user interface. We understand this is a hackathon, so even a simple application is ok. Please note that Aleo is still in Testnet. This means some functionality is still under development. It is essential to consider this when building your application. Below you can find a list of the features/functionality that is currently in progress: Multi-execution transaction types Arrays (in the Leo programming language) AleoBFT (consensus mechanism) Judging Criteria: (a) Novelty - How unique is the application? Does it not exist on Aleo currently? (b) User Experience - How easy is the application to understand and use? (c) Engineering - How well engineered is the dApp given Aleo's current state? (d) Functionality - What can you do with the application?

Qualification Requirements

Submission Requirements: (a) Your GitHub repo must be public and contain a .leo and/or .aleo file (b) Your repo must contain a folder with the following information: Description of your application and why it would add value to the ecosystem Instructions on how to execute your application A description of parameters, functions, etc. This should live in a README (c) You must provide a demo video (d) Your submission should have some minimum UI/UX (e) Please provide information on any challenges or roadblocks you faced