IU2U Token

The IU2U token is the native cross-chain token of the IU2U Protocol, designed to facilitate seamless value transfer and serve as a medium of exchange across multiple blockchain networks.

Token Overview

IU2U tokens are 1:1 backed by U2U (U2U Chain's native token) and serve as the protocol's native asset for:

• Cross-chain token transfers

• DEX aggregation operations

• Gas fee payments in gasless transactions

• Protocol governance and staking

Technical Specifications

Contract Details

// Token Information
Name: IU2U Token
Symbol: IU2U
Decimals: 18
Total Supply: Dynamic (minted/burned based on bridging)
Standard: ERC20 with cross-chain extensions

Key Features

1. Cross-Chain Native: Deployed on multiple chains with unified balances

2. Burnable/Mintable: Supports cross-chain operations through burn/mint mechanisms

3. Gasless Support: Integrated with meta-transaction capabilities

4. Multi-signature Security: Relayer network validation for cross-chain operations

Token Economics

Supply Mechanism

1. Minting: IU2U tokens are minted when U2U is deposited into the protocol

2. Burning: IU2U tokens are burned when withdrawing to U2U

3. Cross-Chain: Tokens are burned on source chain and minted on destination chain

Backing Mechanism

• 1:1 U2U Backing: Every IU2U token is backed by 1 U2U token

• Reserve Verification: Smart contracts ensure proper backing at all times

• Audit Trail: All mint/burn operations are transparently recorded on-chain

Cross-Chain Operations

Bridge Mechanism

The IU2U token uses a sophisticated bridge mechanism:

1. Lock & Mint: On non-native chains, U2U is locked and IU2U is minted

2. Burn & Release: When bridging back, IU2U is burned and U2U is released

3. Relayer Validation: Multi-signature relayer network validates all operations

Supported Chains

Chain	Network ID	IU2U Address	Status
U2U Nebulas Testnet	2484	0x2551f9E86a20bf4627332A053BEE14DA623d1007	Native
U2U Solaris Mainnet	39	0xA3A350214b699578bF9df1Eeb743ab7C139119d6	Native
Ethereum	1	0x...	Deployed
BSC	56	0x365235b4ea2F5439f27b10f746C52B0B47c33761	Deployed
Polygon	137	0x9649a304bD0cd3c4dbe72116199990df06d87329	Deployed
Base	8453	0xF69C5FB9359a4641469cd457412C7086fd32041D	Deployed
Arbitrum	42161	0x48A4C62Af369D37c7411AcB2aF59c87E0A7a0983	Deployed
Optimism	10	0x5814C4a96532618c31deb231bFdEFE443f8474b8	Deployed
Avalanche	43114	0x9E5e98FFaD3F779Ed3459631694788E38B822261`	Deployed

Smart Contract Architecture

Core Functions

// Minting (Cross-chain transfers in)
function mint(address to, uint256 amount) external onlyRelayer

// Burning (Cross-chain transfers out)
function burn(uint256 amount) external

// Cross-chain call with token transfer
function callContractWithToken(
    string memory destinationChain,
    string memory contractAddress,
    bytes memory payload,
    string memory symbol,
    uint256 amount
) external

Security Features

1. Multi-signature Relayers: Requires multiple relayer signatures for operations

2. Command Validation: All cross-chain commands are cryptographically verified

3. Replay Protection: Prevents duplicate transaction execution

4. Rate Limiting: Configurable limits on large transfers

Integration Guide

For DApp Developers

// Get IU2U token contract
const iu2u = new ethers.Contract(IU2U_ADDRESS, IU2U_ABI, signer);

// Transfer tokens cross-chain
await iu2u.callContractWithToken(
    "ethereum",           // destination chain
    "0x...",             // destination contract
    "0x...",             // payload
    "IU2U",              // token symbol
    ethers.parseEther("100") // amount
);

For DEX Integration

// Check IU2U balance
const balance = await iu2u.balanceOf(userAddress);

// Approve for DEX trading
await iu2u.approve(dexAddress, amount);

// Use in DEX aggregation
await aggregator.swapExactTokensForTokens(
    amountIn,
    amountOutMin,
    [IU2U_ADDRESS, tokenOut],
    recipient,
    deadline
);

Use Cases

1. Cross-Chain Arbitrage

Traders can use IU2U to:

• Identify price differences across chains

• Transfer funds quickly between DEXes

• Execute arbitrage strategies with minimal slippage

2. Multi-Chain DeFi

DeFi protocols can integrate IU2U to:

• Accept deposits from any supported chain

• Provide unified liquidity across chains

• Enable cross-chain yield farming

3. Payment Infrastructure

Merchants can use IU2U for:

• Cross-border payments

• Multi-chain invoicing

• Gasless transactions for users

Security Considerations

Risk Factors

1. Bridge Security: Cross-chain operations depend on relayer network security

2. Smart Contract Risk: Standard smart contract vulnerabilities apply

3. Chain-Specific Risks: Each blockchain has inherent risks

Mitigation Strategies

1. Multi-signature Validation: No single point of failure in relayer network

2. Formal Verification: Core contracts undergo formal verification

3. Bug Bounty Program: Active security researcher engagement

4. Regular Audits: Quarterly security audits by leading firms

Governance

Token Voting Rights

IU2U holders can participate in:

• Protocol parameter updates

• New chain integrations

• Relayer network changes

• Fee structure modifications

Proposal Process

1. Proposal Submission: Community members submit proposals

2. Discussion Period: 7-day community discussion

3. Voting Period: 3-day token holder voting

4. Implementation: Successful proposals are implemented

Roadmap

Short Term (Q3-Q4 2025)

• Additional DEX integrations

• Mobile wallet support

• Gas optimization improvements

Medium Term (Q1-Q2 2026)

• Layer 2 expansion

• Institutional custody support

• Advanced trading features

Long Term (Q3 2026 ~)

• Non-EVM chain support

• Native staking mechanisms

• Advanced governance features

Resources

• Token Contract

• Cross-Chain Guide

• Integration Examples

• Security Best Practices