⚛️ Fission Protocol

Yield Tokenization for Polkadot Hub — Split, Trade, Optimize

Fission Protocol brings Pendle-style yield tokenization to Polkadot Hub. Split yield-bearing assets (vDOT, aUSDT) into Principal Tokens (PT) + Yield Tokens (YT), enabling fixed-rate yields and yield speculation.

🏗️ Architecture

User deposits vDOT (yield-bearing)
         │
    ┌────▼────┐
    │ FissionCore │  ← Splits asset into PT + YT
    └────┬────┘
         │
    ┌────▼────┐
    │  PT + YT  │
    └────┬────┘
         │
  ┌──────┼──────┐
  │      │      │
 HOLD   TRADE   LP
  │      │      │
  │  FissionAMM │
  │      │      │
  ▼      ▼      ▼
Fixed  Yield   Swap
Rate   Spec    Fees

📦 Project Structure

fission-protocol/
├── contracts/           # Solidity smart contracts
│   ├── core/            # FissionCore, PrincipalToken, YieldToken
│   ├── amm/             # FissionAMM (time-weighted yield trading)
│   ├── router/          # FissionRouter (one-click flows)
│   ├── integrations/    # SLPx, XCM, Hyperbridge, Gasless adapters
│   ├── interfaces/      # All interfaces
│   ├── libraries/       # YieldMath library
│   └── mocks/           # MockVDOT, MockAUSDT for testing
├── script/              # Deployment scripts
├── test/                # Forge test suite
├── frontend/            # Next.js + Wagmi frontend
│   ├── src/
│   │   ├── app/         # Next.js app router
│   │   ├── components/  # React components
│   │   ├── hooks/       # Custom hooks
│   │   ├── config/      # Chain & contract config
│   │   ├── abi/         # Contract ABIs
│   │   └── styles/      # Global CSS
│   └── public/          # Static assets
└── foundry.toml         # Foundry configuration

🚀 Quick Start

Smart Contracts

# Install Foundry
curl -L https://foundry.paradigm.xyz | bash
foundryup

# Compile
forge build

# Test
forge test -vvv

# Deploy to Polkadot Hub Testnet
forge script script/Deploy.s.sol --rpc-url https://eth-rpc-testnet.polkadot.io/ --broadcast --private-key YOUR_KEY

# Deploy to Polkadot Hub Mainnet
forge script script/Deploy.s.sol --rpc-url https://eth-rpc.polkadot.io/ --broadcast --private-key YOUR_KEY

Frontend

cd frontend
npm install
npm run dev
# Open http://localhost:3000

🔗 Polkadot Hub Configuration

Network	Chain ID	RPC URL
Mainnet	420420419	https://eth-rpc.polkadot.io/
Testnet	420420422	https://eth-rpc-testnet.polkadot.io/

Explorer: https://blockscout.polkadot.io/

⚡ Key Features

• Yield Tokenization: Split vDOT/aUSDT into PT + YT
• Fixed Yield: Buy discounted PT, redeem 1:1 at maturity
• Yield Speculation: Buy YT to receive all streaming yield
• LP Earning: Provide liquidity to PT/asset AMM pools
• Time-Weighted AMM: Custom curve that flattens toward maturity
• Gasless Swaps: EIP-2771 meta-transactions via 0xGasless
• Cross-Chain: XCM + Hyperbridge for multi-chain deposits

🔌 Polkadot-Native Integrations

1. XCM Precompile — Cross-parachain vDOT deposits
2. Bifrost SLPx — DOT → vDOT liquid staking from Solidity
3. Hyperbridge — Accept vDOT from Ethereum/Arbitrum/Base
4. 0xGasless — EIP-2771 gasless PT/YT swaps
5. Dual VM — EVM contracts + PVM YieldMath module
6. Native Assets — vDOT, DOT, USDT, USDC without wrappers

📄 License

MIT