# Deposit from Ethereum,Arbitrum\&Polygon

### **Polynomial Portal**

Users can deposit assets from any EVM chain into the polynomial earn vaults. Under the hood, this asset is bridged via Hop or Optimism bridge to Optimism using [Socket](https://socket.tech/). After which, this asset is converted automatically to the asset used in the vault and deposited into the vault. Assets supported are stable pairs and are converted using Curve.&#x20;

Currently, it is available with Ethereum, Arbitrum and Polygon as chains. And supporting ETH and USDC as assets.

#### How it works

1. The user first selects the chain and token to deposit into the earn vaults.
2. When a bridging transaction is requested, a unique address is generated for the user (on optimism) based on the deposit amount, token, user address and the vault they are depositing.&#x20;
3. The bridging amount is sent to this address once the amount is in this address, a contract is deployed to that address to finish depositing to the vault.
4. Once the contract is created, the contract performs a swap (if required) and deposits to the vault.

### Deposit flow

Select the asset from the supported chain and enter the amount to deposit.

<figure><img src="/files/E1seZclkr7DBIZ3tDigr" alt=""><figcaption></figcaption></figure>

After entering the amount, click deposit and the asset is converted automatically to the asset used in the vault and deposited into the vault.&#x20;

<figure><img src="/files/td8uRMotm6JsANNzkY6B" alt=""><figcaption></figcaption></figure>


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