This project implements a production-ready Vanguard RWA StableCoin (VSC) system with comprehensive compliance management integrated with ERC-3643 standard and OnchainID (ERC-734/ERC-735). The system provides:
- ✅ Real-time compliance validation through oracle networks
- ✅ Dynamic whitelist/blacklist management with 2/3 consensus
- ✅ Zero-knowledge privacy features (5 Circom circuits)
- ✅ Complete token lifecycle management with audit trails
- ✅ Investor type differentiation (4 types: Normal, Retail, Accredited, Institutional)
- ✅ Democratic governance (1 Person = 1 Vote with VGT voting fees)
- ✅ Enhanced escrow system (2-of-3 multisig with dispute resolution)
- ✅ Payment protocol with multi-type refunds
- ✅ 89 interactive demo options for complete system testing
Current Status: ✅ PRODUCTION READY - All 11 core requirements fully implemented
Vanguard/
├── contracts/ # Smart Contract Implementation
│ ├── onchain_id/ # OnchainID contracts (ERC-734/735)
│ ├── erc3643/ # ERC-3643 T-REX contracts
│ ├── oracle/ # Oracle management contracts
│ ├── compliance/ # ComplianceRules engine
│ ├── privacy/ # ZK verification contracts
│ ├── investor/ # Investor type management
│ ├── governance/ # Governance system (1 Person = 1 Vote)
│ ├── payment/ # Payment protocol with refunds
│ ├── migrations/ # Contract migration scripts
│ ├── upgradeable/ # Upgradeable contract patterns
│ └── test/ # Test contracts and helpers
├── circuits/ # Zero-Knowledge Circuits
│ ├── whitelist_membership.circom # Whitelist membership proof
│ ├── blacklist_membership.circom # Blacklist membership proof
│ ├── jurisdiction_proof.circom # Jurisdiction compliance proof
│ ├── accreditation_proof.circom # Accreditation status proof
│ ├── compliance_aggregation.circom # Aggregated compliance proof
│ └── compliance_aggregation_fixed.circom # Fixed aggregation circuit
├── demo/ # Interactive Demo System
│ ├── core/ # Core demo functionality
│ ├── modules/ # Demo modules (89 menu options)
│ ├── logging/ # Demo logging utilities
│ ├── utils/ # Demo helper utilities
│ └── index.js # Main demo entry point
├── scripts/ # Deployment & Utility Scripts
│ ├── production/ # Production deployment scripts
│ ├── deploy-*.ts # Contract deployment scripts
│ ├── test-*.js # Testing and validation scripts
│ ├── generate-*.js # ZK proof generation scripts
│ └── setup-*.js # Setup and configuration scripts
├── test/ # Comprehensive Test Suite
│ ├── circuits/ # ZK circuit tests
│ ├── compliance/ # Compliance system tests
│ ├── erc3643/ # ERC-3643 token tests
│ ├── investor/ # Investor type system tests
│ ├── onchain_id/ # OnchainID tests
│ ├── oracle/ # Oracle system tests
│ ├── privacy/ # Privacy/ZK tests
│ ├── integration/ # Integration tests
│ ├── production/ # Production readiness tests
│ └── *.test.ts # Individual test files
├── docs/ # Comprehensive Documentation
│ ├── SYSTEM_OVERVIEW.md # System architecture overview
│ ├── NEW_FAIR_VOTING_SYSTEM.md # Fair voting implementation
│ ├── INVESTOR_TYPE_SYSTEM.md # Investor type documentation
│ ├── PAYMENT_PROTOCOL_DESIGN.md # Payment protocol docs
│ ├── SYSTEM_WORKFLOW_GUIDE.md # User workflows and interactions
│ ├── TECHNICAL_DEEP_DIVE.md # In-depth technical analysis
│ ├── VANGUARD_RWA_TOKEN_ECOSYSTEM_GUIDE.md # Complete ecosystem guide
│ ├── VOTING_SYSTEM_DIAGRAM.md # Voting system visualization
│ ├── WORKFLOW_IMPLEMENTATION_SUMMARY.md # Implementation workflow summary
│ ├── WORKING_DEMOS.md # Verified working demos guide
│ └── ZK_CIRCUIT_BUILD_GUIDE.md # Zero-knowledge circuit build guide
├── utils/ # Utility Functions
│ ├── merkle-tree-builder.js # Merkle tree construction
│ └── proof-formatter.js # ZK proof formatting
├── typechain-types/ # TypeScript contract types
├── hardhat.config.ts # Hardhat configuration
├── tsconfig.json # TypeScript configuration
├── foundry.toml # Foundry configuration
└── package.json # Project dependencies
- ✅ OnchainID System (ERC-734/735) - Blockchain identity management
- ✅ ERC-3643 System - Compliant security token
- ✅ Oracle System - Consensus-based access control
- ✅ ComplianceRules Engine - Multi-layer validation
- ✅ Privacy System - 5 ZK circuits for privacy-preserving compliance
- ✅ Investor Type System - 4 types with differentiated limits
- ✅ Transfer Limits - Type-specific transfer and holding limits
- ✅ Whitelist Tiers - Required tiers per investor type
- ✅ Large Transfer Detection - Compliance officer notifications
- ✅ VanguardPaymentProtocol - Escrow-based payment system
- ✅ PaymentEscrow - Secure fund holding
- ✅ RefundManager - Multi-type refunds (Automatic/Manual/Dispute/Emergency)
- ✅ Payment State Management - Complete payment lifecycle
- ✅ VanguardGovernance - 1 Person = 1 Vote governance
- ✅ GovernanceToken (VGT) - ERC-3643 compliant voting fee token
- ✅ Enhanced Escrow - 2-of-3 multisig with dispute resolution
- ✅ EscrowWalletFactory - One-time-use escrow wallets
- ✅ 83 Menu Options - Complete workflow coverage
- ✅ End-to-End Testing - All systems integrated
- ✅ User-Friendly Interface - Step-by-step guided workflows
- System Overview - Complete system architecture (83 menu options, 5 ZK circuits, 32+ contracts)
- Vanguard RWA StableCoin Ecosystem Guide - Complete ecosystem overview
- Technical Deep Dive - In-depth technical analysis
- Working Demos - Verified working demos guide
- New Fair Voting System - Fair voting implementation (1 Person = 1 Vote)
- Voting System Diagram - Voting system visualization
- Investor Type System - 4 investor types with limits
- Payment Protocol Design - Payment protocol architecture
- System Workflow Guide - User workflows and interactions
- Workflow Implementation Summary - Implementation workflow summary
- ZK Circuit Build Guide - Zero-knowledge circuit build guide
- Node.js 18+
- Hardhat
- Circom (for ZK circuits)
- snarkjs (for ZK proof generation)
# 1. Clone the repository
git clone <repository-url>
cd ERC-3643
# 2. Install dependencies
npm install
# 3. Compile contracts
npx hardhat compile
# 4. Compile ZK circuits (optional - pre-compiled artifacts included)
npm run setup:zk # Setup ZK circuits (one-time)
### Available NPM Scripts
**Core Development** (Most Used):
```bash
npm run compile # Compile smart contracts
npm run test # Run all tests
npm run node # Start local Hardhat node
npm run clean # Clean build artifacts
npm run demo:interactive:proof # Run main interactive demo (89 options)Testing & Analysis:
npm run test # Run tests with coverage report# 1. Start Hardhat node in one terminal
npm run node
# 2. Run the interactive demo in another terminal
npm run demo:interactive:proofThe interactive demo provides 89 menu options covering:
- User onboarding (KYC/AML verification)
- Token minting and transfers
- Oracle access control (whitelist/blacklist)
- Privacy & ZK verification
- Token burning with quotas
- Investor type management
- Enhanced escrow with dispute resolution
- Payment protocol with refunds
- Governance (1 Person = 1 Vote)
- Dynamic governance cost management (NEW!)
- Complete system integration
# Run all tests
npx hardhat test
# Run specific test file
npx hardhat test test/VanguardGovernance.test.ts
# Run with gas reporting
REPORT_GAS=true npx hardhat test
# Run with coverage
npx hardhat coverage- ✅ OnchainID (ERC-734/735): Blockchain-based identity with key and claim management
- ✅ ERC-3643 T-REX: Compliant security token standard
- ✅ KYC/AML Verification: Trusted claim issuers for identity verification
- ✅ ComplianceRules Engine: Multi-layer validation (jurisdiction, investor type, holding period)
- ✅ Dynamic Whitelist: 5-tier whitelist with oracle consensus (2/3 threshold)
- ✅ Real-time Blacklist: 4-severity blacklist with emergency override
- ✅ Oracle Consensus: M-of-N consensus mechanism with reputation scoring
- ✅ Fallback Mechanisms: Graceful degradation on oracle failures
- ✅ 5 ZK Circuits: Whitelist, blacklist, jurisdiction, accreditation, compliance aggregation
- ✅ Groth16 Proofs: Privacy-preserving compliance validation
- ✅ Selective Disclosure: Prove compliance without revealing personal data
- ✅ Complete Integration: ZK proofs integrated with existing compliance systems
- ✅ 4 Investor Types: Normal (0), Retail (1), Accredited (2), Institutional (3)
- ✅ Type-Specific Limits: Transfer limits (8K/50K/500K VSC), Holding limits (50K/500K/5M VSC)
- ✅ Whitelist Tiers: Required tiers per investor type (1/2/3/4)
- ✅ Transfer Cooldowns: Type-specific cooldowns (60/60/30/15 minutes)
- ✅ 1 Person = 1 Vote: Equal voting power for all verified users
- ✅ VGT Voting Fees: 1,000 VGT proposal creation, 10 VGT per vote
- ✅ Token Burning: Passed proposals burn tokens, failed proposals return them
- ✅ ≥51% Approval: Simple majority threshold for proposal passage
- ✅ KYC/AML Required: Only verified users can participate in governance
- ✅ 2-of-3 Multisig: Investor MUST sign + (Payer OR Payee)
- ✅ One-Time-Use Wallets: Unique escrow wallet per payment
- ✅ Dispute Resolution: 14-day dispute window with investor mediation
- ✅ Fee Distribution: Auto-distribution (3% investor, 2% owner)
- ✅ Shipment Proof: Proof submission with dispute mechanism
- ✅ Escrow-Based Payments: VanguardPaymentProtocol with state management
- ✅ Multi-Type Refunds: Automatic/Manual/Dispute/Emergency refunds
- ✅ Payment Escrow: Secure fund holding with fee management
- ✅ Compliance Integration: Full integration with ComplianceRules and IdentityRegistry
- ✅ Issuer-Only Minting: Exclusive minting authority with economic rationale
- ✅ Quota-Based Burning: Daily/weekly/monthly quotas with consistency checks
- ✅ Supply Management: Complete supply tracking with audit trails
- ✅ Compliance Validation: All operations validated through ComplianceRules
- ✅ Access Control: Role-based access control for all critical functions
- ✅ Reentrancy Protection: ReentrancyGuard on all state-changing functions
- ✅ Input Validation: Comprehensive validation of all inputs
- ✅ Safe Math: Built-in overflow protection (Solidity 0.8+)
- ✅ M-of-N Consensus: 2/3 oracle consensus required for list updates
- ✅ Reputation Management: Oracle scoring and reputation tracking
- ✅ Emergency Override: Emergency blacklist for immediate threat response
- ✅ Fallback Mechanisms: Graceful degradation on oracle failures
- ✅ Zero-Knowledge Proofs: Privacy-preserving compliance validation
- ✅ Selective Disclosure: Prove compliance without revealing personal data
- ✅ Audit Trail: Immutable compliance event logging
- ✅ KYC/AML Verification: Trusted claim issuers for identity verification
- ✅ Sybil Resistance: KYC/AML required for all governance participants
- ✅ Proposer Restriction: Proposers cannot vote on their own proposals
- ✅ Token Locking: Voting fees locked during voting period
- ✅ Equal Voting Power: 1 Person = 1 Vote prevents whale domination
┌─────────────────────────────────────────────────────────────────┐
│ VANGUARD RWA STABLECOIN SYSTEM │
├─────────────────────────────────────────────────────────────────┤
│ │
│ ┌──────────────┐ ┌──────────────┐ ┌──────────────┐ │
│ │ OnchainID │ │ ERC-3643 │ │ Oracle │ │
│ │ (Identity) │ │ (Compliance) │ │ (Access) │ │
│ └──────────────┘ └──────────────┘ └──────────────┘ │
│ │ │ │ │
│ └─────────────────┼──────────────────┘ │
│ │ │
│ ┌────────────────────────────────────────────────────────┐ │
│ │ ComplianceRules Engine (Multi-Layer) │ │
│ │ - Jurisdiction validation │ │
│ │ - Investor type validation │ │
│ │ - Holding period enforcement │ │
│ │ - Compliance level validation │ │
│ └────────────────────────────────────────────────────────┘ │
│ │ │
│ ┌────────────────────────────────────────────────────────┐ │
│ │ Vanguard RWA StableCoin Token (VSC) - ERC-3643 │ │
│ │ - Compliant transfers with multi-layer validation │ │
│ │ - Investor type-specific limits │ │
│ │ - Issuer-only minting with quotas │ │
│ │ - Quota-based burning with audit trails │ │
│ └────────────────────────────────────────────────────────┘ │
│ │
│ ┌──────────────┐ ┌──────────────┐ ┌──────────────┐ │
│ │ Governance │ │ Escrow │ │ Payment │ │
│ │ (1P=1V) │ │ (2-of-3) │ │ (Refunds) │ │
│ └──────────────┘ └──────────────┘ └──────────────┘ │
│ │
│ ┌────────────────────────────────────────────────────────┐ │
│ │ Privacy Layer (5 ZK Circuits - Groth16) │ │
│ │ - Whitelist/Blacklist membership proofs │ │
│ │ - Jurisdiction compliance proofs │ │
│ │ - Accreditation status proofs │ │
│ │ - Compliance aggregation proofs │ │
│ └────────────────────────────────────────────────────────┘ │
│ │
└─────────────────────────────────────────────────────────────────┘
| Category | Contracts | Status |
|---|---|---|
| OnchainID | 5 contracts | ✅ COMPLETE |
| ERC-3643 | 6 contracts | ✅ COMPLETE |
| Oracle | 4 contracts | ✅ COMPLETE |
| Compliance | 1 contract | ✅ COMPLETE |
| Privacy | 7 contracts | ✅ COMPLETE |
| Investor Type | 2 contracts | ✅ COMPLETE |
| Governance | 2 contracts | ✅ COMPLETE |
| Escrow | 2 contracts | ✅ COMPLETE |
| Payment | 3 contracts | ✅ COMPLETE |
| Total | 32+ contracts | ✅ PRODUCTION READY |
# Start Hardhat node
npx hardhat node
# In another terminal, run the demo
npm run demo:interactive:proof
**See [Complete Demo Workflow](/docs/COMPLETE_DEMO_WORKFLOW.md) for detailed step-by-step guide.**
## 📈 Performance & Scalability
### **Gas Optimization**
- ✅ Efficient storage patterns (packed structs, minimal storage writes)
- ✅ Batch operations for multiple actions
- ✅ Optimized loops and data structures
- ⏳ **PENDING**: Comprehensive gas benchmarking and optimization
### **Scalability**
- ✅ Modular architecture for easy upgrades
- ✅ Oracle consensus for distributed validation
- ✅ Efficient caching mechanisms
- ✅ Designed for high-throughput transaction processing
### **Monitoring & Observability**
- ✅ Comprehensive event logging for all operations
- ✅ Audit trails for compliance and governance
- ⏳ **PENDING**: Real-time monitoring and alerting setup
- ⏳ **PENDING**: Performance metrics and dashboards
## 🤝 Contributing
### **Development Guidelines**
1. ✅ Maintain comprehensive test coverage
2. ✅ Update documentation with any changes
3. ✅ Follow security best practices
4. ✅ Submit detailed test results
5. ✅ Follow existing code style and patterns
### **Testing Requirements**
- All new features must include unit tests
- Integration tests for cross-contract interactions
- Gas optimization tests for critical functions
- Security testing for access control and validation
### **Documentation Requirements**
- Update relevant documentation files
- Add inline code comments for complex logic
- Create workflow guides for new features
- Update API documentation for contract changes
## 📄 License
MIT License - See LICENSE file for details
## 🆘 Support & Resources
### **Documentation**
- [System Overview](/docs/SYSTEM_OVERVIEW.md) - Start here for system architecture
- [Vanguard RWA StableCoin Ecosystem Guide](/docs/VANGUARD_STABLECOIN_ECOSYSTEM_GUIDE.md) - Complete ecosystem overview
- [Working Demos](/docs/WORKING_DEMOS.md) - Verified working demos guide
- [System Workflow Guide](/docs/SYSTEM_WORKFLOW_GUIDE.md) - User workflows and interactions
### **Getting Help**
1. Check the comprehensive documentation in the `/docs` folder
2. Review the interactive demo (83 menu options)
3. Examine test files for usage examples
4. Submit issues with detailed reproduction steps
---
## 🎯 Project Status
**Current Phase**: ✅ **Phase 5 Complete** - All core features implemented
**Next Milestone**: Phase 6 - Production Deployment (Gas optimization, security audits, mainnet deployment)
### **Implementation Summary**
- ✅ **11 Core Requirements**: All fully implemented
- ✅ **32+ Smart Contracts**: Production-ready
- ✅ **5 ZK Circuits**: Privacy-preserving compliance
- ✅ **83 Demo Options**: Complete system testing
- ✅ **Comprehensive Documentation**: Complete guides and technical deep dives
### **Production Readiness**
- ✅ **Smart Contracts**: Complete and tested
- ✅ **Integration**: All systems working together
- ✅ **Documentation**: Comprehensive and up-to-date
- ⏳ **Security Audits**: Pending professional audits
- ⏳ **Gas Optimization**: Pending benchmarking and optimization
- ⏳ **Mainnet Deployment**: Pending production deployment
**This is production-ready technology ready for security audits and mainnet deployment! 🎉**