Prop99 is a rollup-native Real World Asset (RWA) and RealFi protocol built on Mantle L2. It enables AI-based verification, on-chain consensus, Ethereum-anchored trust, and scalable tokenization of real-world assets such as real estate, invoices, and cash-flow assets.
Prop99 bridges off-chain asset data with on-chain execution by combining multi-agent AI verification, Mantle L2 smart contracts, and Ethereum rollup anchoring, enabling RWAs to safely participate in DeFi with L1-grade security at L2 cost.
- Real-world assets cannot be verified natively by blockchains.
- Existing RWA systems rely on centralized or opaque oracle providers.
- Oracle failures and manipulation have caused major DeFi losses.
- Ethereum L1 verification costs are prohibitively expensive.
- Lack of provable, auditable verification blocks institutional DeFi adoption.
- AI-driven asset verification executed off-chain.
- On-chain oracle consensus and validation on Mantle L2.
- Cryptographic anchoring of verification commitments to Ethereum.
- Factory-based RWA tokenization with protocol-level compliance.
- Low-cost, scalable architecture using Mantle's modular rollup design.
ORACLE_ROUTER_ADDRESS
0xf4d1656069B739d652CdFC8Cc6ddE2Cd0b2d9A9C
CONSENSUS_ENGINE_ADDRESS
0xd964828145Eb879fD0204A85774391b3dD192e1A
VERIFICATION_ANCHOR_ADDRESS
0xeBE3F5A0411a78B61626c90258a3d46380a11a20
ASSET_REGISTRY_ADDRESS
0x94768a15Cd37e07eEcc02eDe47D134A26C1ecB3f
RWA_TOKEN_FACTORY_ADDRESS
0x68283AAa8899A4aA299141ca6f04dF8e5802509f
COMPLIANCE_MODULE_ADDRESS
0x0bfB6f131A99D5aaA3071618FFBD5bb3ea87C619
L2CrossDomainMessenger
0x4200000000000000000000000000000000000007
L2_TO_L1_MESSAGE_PASSER
0x4200000000000000000000000000000000000016
L1Block
0x4200000000000000000000000000000000000015
These contracts are used to anchor verification commitments to Ethereum, inheriting L1 security.
- A user submits asset metadata and document hashes via the OracleRouter on Mantle L2.
- Off-chain AI oracle nodes detect the request and independently analyze:
- Asset documents (OCR & parsing)
- Satellite imagery and historical data
- Market and pricing data
- Each oracle submits signed valuation and confidence scores back on-chain.
- The ConsensusEngine validates quorum, confidence thresholds, and computes a weighted valuation.
- The verification commitment is anchored to Ethereum via Mantle's L2-to-L1 rollup messaging system.
- The RWATokenFactory deploys an asset-specific token contract.
- The asset is registered in the AssetRegistry and exposed via an on-chain valuation oracle.
prop99/
│
├── frontend/ # Next.js frontend application
│ ├── .next/ # Next.js build output
│ ├── abis/ # Contract ABIs for frontend
│ ├── app/ # Next.js 13+ app directory
│ ├── components/ # React components
│ ├── config/ # Frontend configuration
│ ├── context/ # React context providers
│ ├── lib/ # Utility libraries
│ ├── node_modules/ # Dependencies
│ ├── public/ # Static assets
│ ├── styles/ # CSS/styling files
│ ├── .env # Environment variables (create from .env.example)
│ ├── .env.example # Environment template
│ ├── .env.local # Local environment overrides
│ ├── .gitignore # Git ignore rules
│ ├── components.json # Component configuration
│ ├── next.config.js # Next.js configuration
│ ├── next-env.d.ts # Next.js TypeScript declarations
│ ├── package.json # Frontend dependencies
│ ├── package-lock.json # Lock file
│ ├── pnpm-lock.yaml # PNPM lock file
│ ├── postcss.config.js # PostCSS configuration
│ ├── README.md # Frontend documentation
│ ├── requirements_satellite.txt # Python satellite processing requirements
│ ├── satellite_ndvi.png # NDVI visualization
│ ├── satellite_rgb.png # RGB satellite imagery
│ ├── satellite_sentinel2_enhanced.png # Enhanced Sentinel-2 imagery
│ ├── satellite_tester.py # Satellite testing script
│ └── tailwind.config.js # Tailwind CSS configuration
│
├── offchain/ # AI oracle & backend services
│ ├── dist/ # Compiled distribution
│ ├── node_modules/ # Dependencies
│ ├── src/ # Source code
│ │ ├── agent1.py # AI Agent 1 - Document Analysis
│ │ ├── agent2.py # AI Agent 2 - Satellite Analysis
│ │ ├── agent3.py # AI Agent 3 - Market Analysis
│ │ ├── authorize-consensus-engine.js
│ │ ├── authorize-new-contracts.js
│ │ ├── authorize-oracle.js
│ │ ├── authorize-tokenization.js
│ │ ├── check-consensus-auth.js
│ │ ├── check-oracle-auth.js
│ │ ├── evidence-map.json # Evidence mapping
│ │ ├── extract-pdf.js # PDF extraction utility
│ │ ├── oracle.txt # Oracle documentation
│ │ └── satellite_service.py # Satellite data service
│ ├── .env # Environment variables (create from .env.example)
│ ├── .env.example # Environment template
│ ├── .gitignore # Git ignore rules
│ ├── package.json # Backend dependencies
│ ├── package-lock.json # Lock file
│ ├── README.md # Backend documentation
│ ├── requirements.txt # Python requirements
│ └── sale-deed-extracted.json # Sample extracted data
│
├── contracts/ # Solidity smart contracts
│ ├── artifacts/ # Hardhat compilation artifacts
│ ├── cache/ # Hardhat cache
│ ├── contracts/ # Contract source files
│ │ ├── AssetRegistry.sol # Asset registry contract
│ │ ├── ComplianceModule.sol # Compliance verification
│ │ ├── ConsensusEngine.sol # Oracle consensus mechanism
│ │ ├── OracleRouter.sol # Oracle request router
│ │ ├── RWAToken.sol # RWA token implementation
│ │ ├── RWATokenFactory.sol # Token factory contract
│ │ └── VerificationAnchor.sol # Ethereum anchoring
│ ├── node_modules/ # Dependencies
│ ├── scripts/ # Deployment scripts
│ ├── .env # Environment variables (create from .env.example)
│ ├── .env.example # Environment template
│ ├── .gitignore # Git ignore rules
│ ├── deployment-addresses.json # Deployed contract addresses
│ ├── hardhat.config.js # Hardhat configuration
│ ├── package.json # Contract dependencies
│ ├── package-lock.json # Lock file
│ └── README.md # Contract documentation
│
└── README.md # Main project documentation
Create a frontend/.env file with the following variables:
# Google Earth Engine Configuration
# Get your project ID from: https://console.cloud.google.com/
# 1. Create a new project or select existing
# 2. Enable Earth Engine API
# 3. Copy your project ID
GOOGLE_EARTH_ENGINE_PROJECT_ID=your-gee-project-id
# WalletConnect Project ID
# Get from: https://cloud.walletconnect.com/
# 1. Sign up/login
# 2. Create new project
# 3. Copy Project ID
NEXT_PUBLIC_PROJECT_ID=your-walletconnect-project-id
# Pinata (IPFS) Configuration
# Get from: https://app.pinata.cloud/
# 1. Sign up/login
# 2. Go to API Keys
# 3. Create new key with admin access
# 4. Copy JWT token
PINATA_JWT=your-pinata-jwt-token
# Deployed Contract Addresses (Mantle L2)
NEXT_PUBLIC_ORACLE_ROUTER_ADDRESS=0xf4d1656069B739d652CdFC8Cc6ddE2Cd0b2d9A9CCreate an offchain/.env file with the following variables:
# Node Environment
NODE_ENV=development
# Mantle RPC Endpoints
MANTLE_RPC_URL=https://rpc.mantle.xyz
MANTLE_TESTNET_RPC_URL=https://rpc.sepolia.mantle.xyz
# Wallet Private Keys (NEVER COMMIT THESE!)
# Your oracle node wallet private key
ORACLE_PRIVATE_KEY=your-oracle-wallet-private-key
# Contract owner wallet private key
OWNER_PRIVATE_KEY=your-owner-wallet-private-key
# Deployed Contract Addresses (Mantle L2)
ORACLE_ROUTER_ADDRESS=0xf4d1656069B739d652CdFC8Cc6ddE2Cd0b2d9A9C
CONSENSUS_ENGINE_ADDRESS=0xd964828145Eb879fD0204A85774391b3dD192e1A
VERIFICATION_ANCHOR_ADDRESS=0xeBE3F5A0411a78B61626c90258a3d46380a11a20
ASSET_REGISTRY_ADDRESS=0x94768a15Cd37e07eEcc02eDe47D134A26C1ecB3f
RWA_TOKEN_FACTORY_ADDRESS=0x68283AAa8899A4aA299141ca6f04dF8e5802509f
COMPLIANCE_MODULE_ADDRESS=0x0bfB6f131A99D5aaA3071618FFBD5bb3ea87C619
# Google Earth Engine Configuration
# Same as frontend setup
GOOGLE_EARTH_ENGINE_PROJECT_ID=your-gee-project-id
# AI Model API Keys
# Groq API - Get from: https://console.groq.com/
# 1. Sign up/login
# 2. Go to API Keys
# 3. Create new key
GROQ_API_KEY=your-groq-api-key
# OpenRouter API - Get from: https://openrouter.ai/
# 1. Sign up/login
# 2. Go to Keys
# 3. Create new key
OPENROUTER_API_KEY=your-openrouter-api-key
# WalletConnect Project ID
NEXT_PUBLIC_PROJECT_ID=your-walletconnect-project-id
# Google Custom Search Configuration
# Get from: https://console.cloud.google.com/
# 1. Enable Custom Search API
# 2. Create credentials (API key)
# Get CSE ID from: https://programmablesearchengine.google.com/
# 1. Create new search engine
# 2. Copy Search engine ID
GOOGLE_API_KEY=your-google-api-key
GOOGLE_CSE_ID=your-custom-search-engine-id
# Pinata (IPFS) Configuration
PINATA_JWT=your-pinata-jwt-token
# OCR Space API
# Get from: https://ocr.space/ocrapi
# 1. Sign up for free account
# 2. Copy API key from dashboard
OCR_SPACE_API_KEY=your-ocr-space-api-key
# Oracle Configuration
ORACLE_NODE_ID=1
CONSENSUS_THRESHOLD=2
CONFIDENCE_THRESHOLD=80
# Python Configuration
PYTHON_PATH=python
LOG_LEVEL=info- Node.js v18+ and npm/pnpm
- Python 3.8+
- Git
git clone https://github.com/your-username/prop99.git
cd prop99cd frontend
npm install
# or
pnpm install
# Create your .env file from .env.example and fill in your API keys
cp .env.example .env
# Start development server
npm run dev
# or
pnpm devFrontend will be available at: http://localhost:3000
cd offchain
# Install Node.js dependencies
npm install
# Install Python dependencies
pip install -r requirements.txt
# Create your .env file from .env.example and fill in your configuration
cp .env.example .env
# Start oracle service
node src/authorize-oracle.jsThis service:
- Listens to Mantle L2 blockchain events
- Runs multi-agent AI verification
- Submits oracle responses on-chain
- Coordinates consensus mechanism
cd contracts
npm install
# Create your .env file
cp .env.example .env
# Compile contracts
npx hardhat compile
# Deploy to Mantle testnet
npx hardhat run scripts/deploy.js --network mantleTestnet- ✅ Rollup-native execution on Mantle L2
- ✅ Multi-agent AI oracle verification system
- ✅ On-chain oracle consensus & confidence thresholds
- ✅ Ethereum-anchored verification via rollup messaging
- ✅ Factory-based RWA tokenization
- ✅ On-chain asset registry and valuation oracle
- ✅ DeFi-ready RealFi integration
- ✅ Satellite imagery analysis (Sentinel-2, NDVI)
- ✅ Document OCR and verification
- ✅ Market data integration
Blockchain:
- Mantle L2 (OP Stack)
- Solidity ^0.8.0
- Hardhat
- ethers.js
Frontend:
- Next.js 13+
- React
- TailwindCSS
- WalletConnect
Backend/Oracle:
- Node.js
- Python 3.8+
- Express.js
AI & Data:
- Groq API
- OpenRouter API
- Google Earth Engine
- OCR.space API
- Google Custom Search
Storage:
- IPFS (Pinata)
- Austin Jeremiah J - Full Stack & Blockchain Developer
- Suganthan T S - Smart Contract Engineer
- Sylesh - AI/ML Engineer
MIT License
- Vercel: https://prop99.vercel.app/
- Pitch Link: (https://youtu.be/gwcSH2R9sw0?si=zmorJsxG9ty0pR5N)
For questions or issues, please open an issue on GitHub or contact the team.
