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Jul 12, 2024
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doc: bridging via simple ETH transfer. #789

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6 changes: 6 additions & 0 deletions pages/builders/app-developers/bridging/standard-bridge.mdx
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Expand Up @@ -191,6 +191,12 @@ The Standard Bridge contracts can also be used to bridge ETH from Ethereum to OP
The ETH bridging process is generally less complex than the ERC-20 bridging process.
Users simply need to trigger and send ETH to the [`bridgeETH`](https://github.com/ethereum-optimism/optimism/blob/2e647210882d961f04055e656590d90ad98c9934/packages/contracts-bedrock/src/universal/StandardBridge.sol#L143-L150) or [`bridgeETHTo`](https://github.com/ethereum-optimism/optimism/blob/2e647210882d961f04055e656590d90ad98c9934/packages/contracts-bedrock/src/universal/StandardBridge.sol#L152-L166) functions on either blockchain.

<Callout>
Users can also deposit ETH from Ethereum to OP Mainnet by sending a basic ETH transfer from an EOA to the `L1StandardBridgeProxy`.
This works because the `L1StandardBridgeProxy` contains a [`receive`](https://github.com/ethereum-optimism/optimism/blob/2e647210882d961f04055e656590d90ad98c9934/packages/contracts-bedrock/src/universal/StandardBridge.sol#L119-L121) function.
You can find the mainnet and testnet addresses on the [Contract Addresses](/chain/addresses) page.
</Callout>

## Tutorials

* [Learn how to bridge ERC-20 tokens with the Optimism SDK](/builders/app-developers/tutorials/cross-dom-bridge-erc20)
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