EVM Bridge

A simple, creative cross-chain token bridge for EVM-compatible blockchains!

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Features

• ERC20 token with mint & burn
• Owner-only minting & unlocking
• Event logging for all bridge actions
• Cross-chain asset transfer support

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Contracts

Contract	Description
Token.sol	ERC20 token with mint/burn, owned by deployer
BridgeEth.sol	Base bridge for locking/unlocking tokens, owner-only unlock
BridgeBase.sol	Polygon bridge, owner can mint/burn tokens on Polygon

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Directory Structure

contracts/
  ├── Token.sol
  ├── BridgeEth.sol
  └── BridgeBase.sol

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Quick Start

1. Install dependencies:

   npm install

2. Compile contracts:

   npx hardhat compile

3. Run tests:

   npx hardhat test

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Usage

• Deploy Token.sol to your network.
• Deploy BridgeEth.sol or BridgeBase.sol, passing the token address.
• Use bridge contracts to lock, mint, burn, or unlock tokens as needed.

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How It Works

flowchart LR
    User1[User on Chain A] -- Lock --> BridgeA[BridgeEth]
    BridgeA -- Event --> OffChainRelayer
    OffChainRelayer -- Mint Request --> BridgeB[BridgeBase]
    BridgeB -- Mint --> User2[User on Chain B]

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Requirements

• Node.js
• Hardhat
• OpenZeppelin Contracts (v4.9.6+)

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⚖️ License

MIT

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Made with ❤️ for the EVM ecosystem