# Contracts

### Portikus Adapter

Portikus Adapter is Velora's Delta contract

When working on the API implementation, you’ll use the following contract addresses at these stages:

* Order creation
* Signing order
* Submitting Order to API
* On-Chain Execution

Delta’s contract has been deployed on Ethereum and Base networks. It shares the same address across both chains.

###  Addresses of Delta contract

<table><thead><tr><th width="179">Network</th><th>Address</th></tr></thead><tbody><tr><td>Ethereum</td><td><a href="https://etherscan.io/address/0x0000000000bbf5c5fd284e657f01bd000933c96d">0x0000000000bbf5c5fd284e657f01bd000933c96d</a></td></tr><tr><td>Base</td><td><a href="https://basescan.org/address/0x0000000000bbf5c5fd284e657f01bd000933c96d">0x0000000000bbf5c5fd284e657f01bd000933c96d</a></td></tr><tr><td>Optimism</td><td><a href="https://optimistic.etherscan.io/address/0x0000000000bbF5c5Fd284e657F01Bd000933C96D">0x0000000000bbf5c5fd284e657f01bd000933c96d</a></td></tr><tr><td>Arbitrum</td><td><a href="https://arbiscan.io/address/0x0000000000bbf5c5fd284e657f01bd000933c96d">0x0000000000bbf5c5fd284e657f01bd000933c96d</a></td></tr><tr><td>Polygon</td><td><a href="https://polygonscan.com/address/0x0000000000bbf5c5fd284e657f01bd000933c96d">0x0000000000bbf5c5fd284e657f01bd000933c96d</a></td></tr><tr><td>BSC</td><td><a href="https://bscscan.com/address/0x0000000000bbf5c5fd284e657f01bd000933c96d">0x0000000000bbf5c5fd284e657f01bd000933c96d</a></td></tr></tbody></table>


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