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Arbitrum Orbit Deployment

Arbitrum Orbit is a Rollup Development Kit (RDK) developed by Offchain Labs to enable rollup developers to build using the same software that powers Arbitrum One and Arbitrum Nova.

EigenDA Proxy​

Arbitrum nodes communicate with EigenDA via the proxy for secure communication and low code overhead. More information can be found here. An instance of proxy must be spun-up to use this integration. In your node config, this will look like:

"eigen-da": {"enable": true,"rpc": "http://eigenda_proxy:4242"}

How to deploy a Rollup Creator integrated with EigenDA​

  1. Assuming you have yarn and hardhat installed.

  2. Download the nitro contracts source code from the EigenDA fork using latest stable version.

  3. Specify required environment variables: DEPLOYER_PRIVKEY, PARENT_CHAIN_RPC, and EIGENDA_ROLLUP_MANAGER_ADDRESS. Optionally, you can also specify MAX_DATA_SIZE, FEE_TOKEN_ADDRESS, and CREATOR_DEPLOYMENT_INFO.

    If the EIGENDA_ROLLUP_MANAGER_ADDRESS is unspecified, then one will be deployed automatically based on the parent chain context.

  4. Run the rollup creator deployment script that deploys all necessary contracts and sets up the rollup creator template.

yarn hardhat run scripts/local-deployment/deployCreator.ts

The script will take a few minutes to complete as it prints out the addresses of the deployed contracts along the way. Lastly, the script will write the deployed contracts to the CREATOR_DEPLOYMENT_INFO file you specified. Upon completion, your rollup creator factory is ready to use to deploy new chains.

How to deploy a Rollup using pre-deployed Rollup Creators​

We support rollup creators using EigenDA contracts and blob verifiers on the following networks:

versionnetworkrollup creator addressblob verifier (EIGENDA_ROLLUP_MANAGER) address
v2.1.0Ethereum Mainnet0xAf5F13b5aB7a5da24f8b2808a032296Ef3476AF60x187fb3c0664c5d49ce1f051af913fcadbcd7bb3f
v2.1.0Ethereum Holesky0x4449adCcad953ce8feB2FD50707B17f876bBDEf40x19354e59F89B3B8D5A77494e81433ceDB093699A
v2.1.0Arbitrum Mainnet0x8c83b9c670E90A4fAbf19E6fCb267caf12644a870x4a6e6833dc8748aa3e6d6a68aae9b7b40afbb3d5
v2.1.0Arbitrum Sepolia0x4264420318Ba09C29dbbe402b3f16Ee13903a0310x5ce8b81e0E8271bA8Dd33190a8aC2960f9917Ef9
v2.1.0Base Mainnet0xaFa98453F1f3B1Ea7629e67621a29B7Be4AC225A0x4a6e6833dc8748aa3e6d6a68aae9b7b40afbb3d5
v2.1.0Base Sepolia0xfc2a0CD44A6CB0b72d5a7F8Db2C044F62db507810xA0735f425792eCcDA1b8f50ceB36B05635c77D63

Procedure​

  1. Assuming you have yarn and hardhat installed.

  2. Download the nitro contracts source code from the EigenDA fork using latest stable version.

  3. Specify required environment variables: DEPLOYER_PRIVKEY, PARENT_CHAIN_RPC, (optional)FEE_TOKEN_ADDRESS, ROLLUP_CREATOR, EIGENDA_ROLLUP_MANAGER.

  4. Run the rollup creation script that deploys all necessary system contracts via the pre-deployed rollup creator.

yarn hardhat run scripts/local-deployment/createRollup.ts

Deploy using our hosted Rollup Creators​

The Orbit documentation provides a comprehensive overview for how one can trigger new chain deployments using already deployed rollup creators. If you'd like to leverage the orbit-sdk please use our fork here.

How to deploy a Rollup on Testnet using our UI​

While you can interact with the deployed Rollup creator directly, we recommend using our orbit chain deployment portal to deploy a rollup for a friendlier devx and easy-to-use configs. Currently, the only supported testnets are:

  • Ethereum Holesky
  • Arbitrum Sepolia

Steps​

  1. Start by clicking the button "Launch on holesky testnet" and connect a wallet using your preferred wallet provider.

  2. Choose EigenDA as the Chain Type, and click Next.

  3. Customize your rollup's configurations, such as the Chain ID, Chain Name, Batch posters, Validators, EigenDA Rollup Manager, and more.

  4. Click "Deploy" and sign the transaction to create the rollup contracts.

  5. Once your rollup is deployed, you will be redirected to review the rollup configurations. Make sure to download the zip file containing your chain and node config files, and store them somewhere handy.

  6. Go to the next page and follow the instructions there to set up a nitro sequencer using the downloaded config files to power the rollup. If you've completed these steps successfully, you are now running an Arbitrum Orbit rollup that uses EigenDA!

Token Bridge​

The Arbitrum token bridge can be enabled to support L1 to/from L2 bridging of ERC-20 assets. Since the token bridge is a wrapper on-top of the existing L1 to/from L2 native bridge, there are no changes necessary to enable it. Additionally, the existing token bridge creators maintained by Offchain labs can be leveraged to deploy token bridges on-top of existing inboxes integrated EigenDA.

Troubleshooting​

  1. If your nitro setup script node encounters a warning error getting latest batch count: no contract code at given address, you should first verify that: A. That the SequencerInbox entry in your /config/orbitSetupScriptConfig maps to a successfully deployed contract B. Your RPC provider is sufficiently reliably. Transient errors are common when leveraging free and public RPC providers