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Bridging Native ETH to Celo

This document provides a minimal overview of the SuperBridgeETHWrapper.sol contract and its deployed addresses.

Purpose​

The SuperBridgeETHWrapper.sol contract allows users to bridge native ETH from an L1 network (like Ethereum or Holesky) to the Celo L2 network, where it arrives as WETH.

note

When using Superbridge, this entire process is abstracted away from the user.

How it Works (Simplified):​

  1. User sends ETH to this contract on L1 (calls wrapAndBridge function).
  2. Contract wraps ETH into WETH on L1.
  3. Contract uses the L1 Standard Bridge to send this WETH to Celo L2.
  4. WETH arrives on Celo L2.

Deployed Contract Addresses​

note

For Alfajores and Baklava, the L1 is the Holesky testnet. For Celo Mainnet, the L1 is Ethereum Mainnet.

Alfajores (L1: Holesky)​

DescriptionAddress
L1 WETH Address (WETH_ADDRESS_LOCAL)0x94373a4919B3240D86eA41593D5eBa789FEF3848
L2 WETH Address (WETH_ADDRESS_REMOTE on Celo Alfajores)0x4EE7Ea447197c6b7BE0ab1A068F55c74a3390F33
L1 Standard Bridge Proxy (STANDARD_BRIDGE_ADDRESS)0xD1B0E0581973c9eB7f886967A606b9441A897037
Deployed SuperBridgeETHWrapper Address (on Holesky)0x78fb67119c4a055d6eb497b1aa5d09f7124225e5

Baklava (L1: Holesky)​

DescriptionAddress
L1 WETH Address (WETH_ADDRESS_LOCAL)0x94373a4919B3240D86eA41593D5eBa789FEF3848
L2 WETH Address (WETH_ADDRESS_REMOTE on Celo Baklava)0xBEcfCB91527166382187D5EE80ac07433D01549e
L1 Standard Bridge Proxy (STANDARD_BRIDGE_ADDRESS)0x6fd3fF186975aD8B66Ab40b705EC016b36da0486
Deployed SuperBridgeETHWrapper Address (on Holesky)0x6b7FAa7cC86DCd14e78F6a78F2dCfC76f8042e58

Mainnet (L1: Ethereum)​

DescriptionAddress
L1 WETH Address (WETH_ADDRESS_LOCAL)0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2
L2 WETH Address (WETH_ADDRESS_REMOTE on Celo Mainnet)0xD221812de1BD094f35587EE8E174B07B6167D9Af
L1 Standard Bridge Proxy (STANDARD_BRIDGE_ADDRESS)0x9C4955b92F34148dbcfDCD82e9c9eCe5CF2badfe
Deployed SuperBridgeETHWrapper Address (on Ethereum Mainnet)0x3bC7C4f8Afe7C8d514c9d4a3A42fb8176BE33c1e