Wrapped ETH 9.1

The "Wrapped Ether" WETH-9 with additional features through relatively minor changes.

Deployments

zkSync Era Testnet 0x20b28B1e4665FFf290650586ad76E977EAb90c5D

zkSync Era Mainnet 0x8Ebe4A94740515945ad826238Fc4D56c6B8b0e60

Features

• Supports ERC-165 interface detection.
• Supports ERC-2612 signed approvals.
• Supports ERC-1271 contract signature verification.
• Prevents from burning or sending WETH tokens to the contract.

Build

yarn
yarn test
yarn build

This repo is designed for zkSync 2.0 (testnet). To build artifacts for zkSync, run yarn build-zk. To deploy on zkSync, run yarn deploy.

Changelog

• Upgraded Solidity to 0.8.
• Added supportsInterface.
• Added DOMAIN_SEPARATOR.
• Added permit function.
• Added permit2 function.
• Added check for dst on transferFrom.

Resources

• WETH9
• zkSync 2.0 Documentation
• zkSync 2.0 Explorer
• zkEVM Compiler Binary