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Enable a Prover

CAUTION

Only the first prover can get the reward, and others will be rejected by the protocol smart contract. This means the fastest prover will be able to prove the block and earn the reward. If you have just the minimum hardware outlined in the prerequisites below and are running a single prover, it's unlikely you will be able to prove any blocks because you will be competing against other high-performance provers.

If you do not have a powerful prover, the primary purpose of running a prover should be to help test out and provide community feedback on running the node software. Keep in mind that this will incur electricity costs on your computer, and if you are not proving blocks, it's unlikely you will receive rewards to offset these costs.

Prerequisites​

  • ETH on Arbitrum Sepolia: You must have some ETH on Arbitrum Sepolia Testnet. Refer to the "receive tokens" section for more details.
  • Hardware Requirements: You should have at least an 8/16 core CPU and 32GB of RAM. (Note: See the warning above about the necessity of having powerful hardware to successfully prove blocks).

Steps​

  1. Set Environment Variables to Enable Prover To enable your node as a prover, set the following environment variables:

    • Set ENABLE_PROVER to true (replacing the default false with true).

  2. Set Private Key

    • Set L1_PROVER_PRIVATE_KEY to your wallet's private key. Ensure this wallet has some balance on Arbitrum Sepolia to prove blocks.
    • If using MetaMask, follow these instructions to retreive the private key.

  3. Verify Prover Logs Check your prover logs for the following messages to ensure everything is functioning correctly.

    • 💰 Your block proof was accepted means you are the first prover and have received the reward.
    • ✅ Valid block proven indicates that a proposed block was successfully proved on MXCL1 (by anyone).

  4. Troubleshooting For common issues, consult the Supernode - Troubleshooting section.