MizuPass

# MizuPass: Privacy-First Ticketing on U2U Network

**VietBUIDL Hackathon 2025 | User Application Track**

**🚀 LIVE ON U2U MAINNET 🚀**

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## Executive Summary

Privacy-preserving event ticketing platform reducing fees from 15-30% to 2.5% using zero-knowledge proofs, stealth addresses (EIP-5564), and pUSDT payments on U2U Solaris Mainnet.

**Track Alignment**: DeFi (stealth payments) + SocialFi (decentralized identity) + RWA (programmable ticket NFTs)

**Status**: 4 verified contracts LIVE on U2U Mainnet | Working ZK circuits | Production API & Frontend

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## Problem → Solution

| Problem | Impact | MizuPass Solution |

|---------|--------|------------------|

| **High Fees** | 15-30% platform fees | **2.5%** smart contract automation |

| **Privacy Violations** | Personal data harvested | Zero-knowledge proofs (no data stored) |

| **Ticket Fraud** | $75M annual losses in Vietnam | Cryptographic guarantees |

| **International Barriers** | Complex KYC requirements | ZKPassport universal verification |

| **Payment Friction** | Cash/card only | pUSDT stablecoin payments |

**Market**: $500M Vietnamese event industry, $200M digital ticketing

---

## Technical Innovation

### 1. Zero-Knowledge Ticket Verification

- **Circuit**: Groth16 with 3,300 constraints (mobile-optimized)

- **Performance**: 6.5ms witness generation, <50ms offline verification

- **Privacy**: Identity never revealed, attendance patterns unlinkable

- **Offline**: Works without internet via WASM

### 2. Stealth Address Payments (EIP-5564)

- Each ticket purchase → unique, unlinkable stealth address

- Impossible to correlate transactions

- Full payment privacy with pUSDT stablecoin

### 3. Universal Identity (ZKPassport)

- Verify Vietnamese + international users via zero-knowledge passport proofs

- No personal data stored on-chain (only nullifier hash)

- Compliant with Vietnamese e-KYC requirements

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## 🚀 Deployed Contracts (U2U SOLARIS MAINNET)

| Contract | Address | Purpose |

|----------|---------|---------|

| **MizuPassIdentity** | `0x5EF386D8aF3b1709C4Ca0404A27E80B2d1206e38` | Universal identity verification |

| **pUSDT Token** | `0x0820957B320E901622385Cc6C4fca196b20b939F` | Payment token (6 decimals) |

| **StealthAddressManager** | `0xEFEE9654334eE89A25021903B01AD840C7494dE2` | EIP-5564 stealth payments |

| **EventRegistry** | `0x8C0028B38c492A2F991dD805093C6712344D012F` | Event discovery & management |

**Network**: U2U Solaris Mainnet (Chain ID: 39) | **Explorer**: [u2uscan.xyz](https://u2uscan.xyz)

All contracts verified and publicly viewable on U2U Scan.

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## Architecture

```

Frontend (React) → Backend (Bun+TS) → Smart Contracts (U2U Mainnet)

↓

ZK Circuits (Offline WASM)

```

**Key Features**: Offline verification | Zero data storage | Cross-border | Stablecoin-native

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### Business Projections (3-Year)

- **Events**: 50 → 1,000

- **Tickets**: 100K → 2.5M

- **Revenue**: $125K → $3.1M (2.5% fee)

- **GMV**: $5M → $125M

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## Competitive Advantage

| Feature | Traditional | Crypto Ticketing | **MizuPass** |

|---------|------------|------------------|--------------|

| **Fees** | 15-30% | 5-10% | **2.5%** |

| **Privacy** | ✗ Data harvesting | ✗ Pseudonymous | **✓ Zero-knowledge** |

| **Offline** | ✗ Internet required | ✗ Internet required | **✓ Offline-capable** |

| **Identity** | ✗ Centralized KYC | ✗ Wallet only | **✓ ZKPassport** |

| **Mainnet** | ✓ Yes | ⚠ Most testnet | **✓ U2U MAINNET** |

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## U2U Ecosystem Value

**Network Impact (3-Year)**:

- 3.75M transactions | 1.25M active wallets | $155M pUSDT volume

**Strategic Value**:

1. Real-world consumer application (not just DeFi)

2. Vietnamese user gateway to U2U ecosystem

3. Open-source privacy components (ZK + stealth + identity)

4. First production zero-knowledge app on U2U

5. Event organizer/university partnerships

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## Go-to-Market

**Q1 2025**: Vietnamese tech events (TechFest, blockchain conferences) → 3-5 events, 2K tickets

**Q2 2025**: University expansion (VNU, HCMUT, FPT) → 15 events, 10K tickets

**Q3-Q4 2025**: Mainstream festivals/concerts → 50+ events, 100K+ tickets

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## Why MizuPass Wins

✅ **Production-Ready**: 4 verified contracts on U2U Mainnet, working ZK circuits, live API/frontend

✅ **Real Market Need**: $500M market, 87% fee reduction, privacy violations solved

✅ **Technical Innovation**: First EIP-5564 stealth ticketing, mobile-optimized ZK, offline verification

✅ **U2U Alignment**: Vietnamese market focus, real-world utility, ecosystem contribution

✅ **Execution**: 95%+ test coverage, 300+ task migration plan, event organizer contacts

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## Technology Stack

**Smart Contracts**: Solidity 0.8.24 | OpenZeppelin | Hardhat | 95%+ test coverage

**Zero-Knowledge**: Circom 2.0 | Groth16 | SNARKjs | WASM

**Backend**: Bun | Hono | TypeScript | RESTful API

**Frontend**: React 18 | Wagmi + Viem | TanStack Router | Tailwind

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### Repositories

- **ZK Circuits**: https://github.com/MizuPass/mizu-circuit-zk

- **Smart Contracts**: https://github.com/MizuPass/mizu-contracts

- **Backend**: https://github.com/MizuPass/mizu-backend

- **Frontend**: https://github.com/MizuPass/mizu-fe

### Live Deployment

- **Status**: ✅ DEPLOYED ON U2U SOLARIS MAINNET

- **Network**: U2U Solaris (Chain ID: 39)

- **Explorer**: https://u2uscan.xyz

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## Summary

**MizuPass** is a production-deployed, privacy-preserving ticketing platform that revolutionizes Vietnamese event industry with 87% fee reduction, cryptographic fraud prevention, and universal identity verification on U2U Network.

**Key Achievements**:

✅ 4 verified mainnet contracts | ✅ 6.5ms ZK proof generation | ✅ Offline-capable verification

✅ $500M market opportunity | ✅ Vietnamese + international users | ✅ 2.5% vs 15-30% fees

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**MizuPass: Privacy-First Ticketing on U2U Network**

*VietBUIDL Hackathon 2025 | User Application Track*

**🚀 LIVE ON U2U MAINNET | Production-Ready | Built for Vietnam 🇻🇳**