🎺Walchain Bridge

WALCHAIN BRIDGE & MULTI-CHAIN CONNECTIVITY

Interoperability is a key factor in the SuperWAL ecosystem, ensuring seamless interaction between Walchain Layer 1 and major blockchain networks like Ethereum, Binance Smart Chain (BSC), and Solana. Walchain Bridge enables secure cross-chain asset transfers, while Atomic Swaps & Cross-chain Swaps facilitate trustless exchanges without intermediaries.

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WALCHAIN BRIDGE

The Walchain Bridge serves as a cross-chain gateway, enabling users to transfer assets between Walchain and external blockchain networks (Ethereum, BSC, Solana, and more) while maintaining security and decentralization.

1. How WALCHAIN Bridge Works

📌 Bridge Process Overview 1️⃣ Asset Locking on Source Chain → User deposits assets into a Bridge Smart Contract on the source blockchain (e.g., Ethereum). 2️⃣ Cross-chain Verification → The Bridge Validator Network verifies the deposit and initiates the minting process. 3️⃣ Wrapped Asset Minting on Destination Chain → Equivalent wrapped assets (e.g., wETH, wBSC, wSPL) are minted on the Walchain network. 4️⃣ Asset Transfer Completion → The user receives their wrapped tokens and can use them within the SuperWAL ecosystem. 5️⃣ Redeeming Wrapped Assets → When moving assets back, the process is reversed: burning wrapped tokens on Walchain triggers unlocking original assets on the source chain.

📌 Technical Flow of Walchain Bridge

User Deposits Token on Source Chain
    ↓
Bridge Smart Contract Locks Asset
    ↓
Validator Network Verifies Transaction
    ↓
Walchain Mints Wrapped Token
    ↓
User Uses Wrapped Token on Walchain
    ↓
If Withdrawn:
    ↓
User Burns Wrapped Token
    ↓
Validator Confirms Burn Event
    ↓
Original Asset Unlocked on Source Chain

📌 Example: Bridging ETH from Ethereum to Walchain

• User deposits ETH into a Bridge Smart Contract on Ethereum.

• Validator Network confirms the deposit.

• Wrapped ETH (wETH) is minted on Walchain as a 1:1 representation.

• User can now trade wETH in the SuperWAL ecosystem.

• If the user wants to withdraw wETH, they burn it on Walchain, and the original ETH is released on Ethereum.

2. Security Measures in Walchain Bridge

🔒 Security Considerations in Cross-chain Transactions

1️⃣ Multi-Signature Validators → Transactions require multiple trusted validators before being processed. 2️⃣ Threshold-based Finalization → Transactions are only finalized when a majority (e.g., ⅔ of validators) confirm them. 3️⃣ Merkle Proofs & zk-SNARKs → Uses cryptographic proofs to verify transactions without exposing sensitive data. 4️⃣ Time-locked Withdrawals → Prevents instant withdrawal exploits by enforcing a time delay before asset redemption. 5️⃣ On-chain Monitoring & Slashing → Validators failing to provide accurate data are penalized and removed from the bridge.

📌 Smart Contract Example for Locking Assets in the Bridge (Ethereum → Walchain)

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

contract WalchainBridge {
    mapping(address => mapping(string => uint256)) public lockedFunds;
    
    event Locked(address indexed user, uint256 amount, string targetChain);

    function lockAssets(uint256 amount, string memory targetChain) external payable {
        require(amount > 0, "Amount must be greater than zero");
        lockedFunds[msg.sender][targetChain] += amount;
        emit Locked(msg.sender, amount, targetChain);
    }
}

🚀 This contract securely locks assets before bridging to Walchain.