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PRIVACY Projects: 27+ Blockchain Examples

Browse 27+ open-source blockchain PRIVACY projects from ETHGlobal hackathons. Find production-ready code, learn from winning implementations, and discover inspiration for your next blockchain build.

Privacy-focused projects use blockchain technology to enhance user privacy and data protection, often through zero-knowledge proofs, encryption, and other cryptographic techniques.

Showing 27 projects sponsored by CELO.

Identifi

A Web3 identity app enabling users to verify age and humanity using Worldcoin and Self Protocol.

Next.jsdaoinfrastructuregamingsocialprivacy
🏆 World Pool Prize (World)🏆 Celo L2 Pool Prize (Celo)
ETHGlobal Taipei • 2025

MemestCutestPlatform

A gamified cross-service based MCP platform in a TEE to unify dApps and Web2 apps

ReactTypeScriptNext.jsdefiinfrastructuregamingprivacy
🏆 Integrate Fusion+ into your project2nd place (1inch)🏆 Celo L2 Pool Prize (Celo)
ETHGlobal Taipei • 2025

Calary

Calary: Compliance toolkit empowering killer consumer dApps with on-chain payroll, swaps & rewards.

Soliditydefinftinfrastructureprivacy
🏆 Celo L2 Pool Prize (Celo)🏆 Uniswap v4 Hook IntegrationsRunner Up (Uniswap Foundation)
ETHGlobal Taipei • 2025

IntelliGuard

IntelliGuard, the ultimate transaction AI watchdog, syncing with crypto wallets to provide security.

Reactdefigamingsocialprivacy
🏆 Celo L2 Pool Prize (Celo)
ETHGlobal Taipei • 2025

Messiah

Following Messiah's guidance, revealing the code execution logic and safeguarding assets.

SolidityReactTypeScriptJavaScriptPythonprivacy
🏆 On - Chain Infrastructure Compliance Innovation (HashKey Chain)🏆 Celo L2 Pool Prize (Celo)
ETHGlobal Taipei • 2025

CupFi

Save the planet, one sip at a time—get rewarded for using your reusable cup!

definftinfrastructureprivacy
🏆 Celo L2 Pool Prize (Celo)
ETHGlobal Taipei • 2025

Trusted-Jobs

Onchain job platform with Self Protocol-based compliance checks and escrowed smart contract rewards.

SolidityRustNext.jsNode.jsinfrastructureprivacy
🏆 Celo L2 Pool Prize (Celo)
ETHGlobal Taipei • 2025

knowledge king

Knowledge King is a knowledge game where player answers questions to earn on-chain rewards.

SolidityNext.jsnftgamingprivacy
🏆 Celo L2 Pool Prize (Celo)
ETHGlobal Taipei • 2025

Register Yo Self

Self-service identity verification powered by Self for quicker and smoother registration process

infrastructuresocialprivacy
🏆 Celo L2 Pool Prize (Celo)
ETHGlobal Taipei • 2025

MCPilot

Allow LLM to interact with blockchain through a secure crypto wallet

Soliditydefinftprivacy
🏆 Celo L2 Pool Prize (Celo)
ETHGlobal Taipei • 2025

VoteGuard

VoteGuard lets you prove your vote is valid without revealing who you are or what you chose.

SolidityRustNext.jsdaoinfrastructureprivacy
🏆 Celo L2 Pool Prize (Celo)
ETHGlobal Taipei • 2025

my-self-ticket

This project uses the Self Protocol to build a ticketing website.

TypeScriptinfrastructuregamingprivacy
🏆 Celo L2 Pool Prize (Celo)
ETHGlobal Taipei • 2025
Page 1 of 3 • Showing 12 of 27 projects