Public blockchains are transparent by default, exposing balances, strategies, and user activity to the public. This level of transparency has hindered the adoption of onchain finance by institutions, DeFi protocols and everyday users.

With the Zama Protocol, powered by Fully Homomorphic Encryption (FHE), computation can run directly on encrypted data, enabling confidential and verifiable onchain finance.

Your challenge is to design and prototype applications that bring confidentiality on public blockchain, and build financial systems where sensitive data remains encrypted at all times.

Developers can write confidential smart contracts using Solidity and familiar tooling. By using encrypted integer (euint) data types, developers can easily define which parts of smart contracts remain private and specify access rules that determine who can decrypt specific data directly within the smart contract logic.

Rewards: $5,000 awards distributed to 5 winning projects. 1k per winner.
Submission deadline: May 10th, 23:59 AOE

Submission Requirements

A functioning dApp demo using the Zama Protocol
Demonstrates real-world use cases of FHE technology
Includes both smart contract + frontend implementation
Clear, well-structured project documentation
A 2-minute video demo pitching the project

Judging Criteria

Innovation — Novel confidential finance use case
Compliance awareness — Designs that consider regulatory or compliance-friendly privacy models
Real-world potential — Practical relevance to onchain finance
Technical implementation — Correct and effective use of Zama tools
Production readiness — Quality, robustness, and architectural design
Usability — Documentation, clarity, and developer experience

Example Project Ideas

Confidential token issuance and management
Confidential payments or transfers
Private balances or portfolios
Confidential trading systems
Confidential lending or credit logic
Private DAO treasury management
Confidential real-world asset (RWA) applications
Confidential onchain payroll system

Resources
Zama Protocol Documentation
Zama Protocol Litepaper

Zama 中文教程