Run a Gravity Alpha Mainnet (L2) Node

Instructions about how to run a Gravity Alpha Mainnet node.

We'd like to inform you that ArbOS32 will be activated on Gravity chain in the new year.

Prior to January 20th, please do the following:

- Node version must be on the following version: run nitro-node >= v3.2.1

Guide

Prerequisites

A local directory for storing node data
An Ethereum mainnet RPC endpoint with unlimited rate limit for eth_getLogs
An Ethereum beacon chain RPC endpoint

Download Snapshot (Recommended)

Syncing a node from scratch can be extremely time-consuming and resource-intensive. We strongly recommend downloading our latest snapshot:

Download Gravity L2 Node Snapshot
Extract the snapshot to your local directory before running the node.

In our experiment, syncing from scratch without using snapshots will take 12-15 days for Gravity Alpha Mainnet. The experiment was done in March 2025, when the block height of Gravity Alpha Mainnet is around 51,413,000.

Running the Node

Save the following script as run-gravity-node.sh, make it executable with chmod +x run-gravity-node.sh, and update the TODO variables:

#!/bin/bash

# Define dependent variables
LOCAL_DIR="TODO"                # Replace with your local directory path
ETH_MAINNET_RPC="TODO"          # Replace with your Ethereum mainnet RPC endpoint
ETH_BEACON_RPC="TODO"           # Replace with your Ethereum beacon chain RPC endpoint

# Run the Docker container
docker run --rm -it \
    --add-host=host.docker.internal:host-gateway \
    -v "$LOCAL_DIR:/home/user/.arbitrum" \
    -p 0.0.0.0:8547:8547 \
    -p 0.0.0.0:8548:8548 \
    offchainlabs/nitro-node:v3.5.1-8f247fd \
    --parent-chain.connection.url="$ETH_MAINNET_RPC" \
    --chain.id=1625 \
    --chain.name=conduit-orbit-deployer \
    --http.api=net,web3,eth \
    --http.corsdomain="*" \
    --http.addr=0.0.0.0 \
    --http.vhosts="*" \
    --chain.info-json='[
        {
            "chain-id": 1625,
            "parent-chain-id": 1,
            "chain-name": "conduit-orbit-deployer",
            "chain-config": {
                "chainId": 1625,
                "homesteadBlock": 0,
                "daoForkBlock": null,
                "daoForkSupport": true,
                "eip150Block": 0,
                "eip150Hash": 
                "0x0000000000000000000000000000000000000000000000000000000000000000",
                "eip155Block": 0,
                "eip158Block": 0,
                "byzantiumBlock": 0,
                "constantinopleBlock": 0,
                "petersburgBlock": 0,
                "istanbulBlock": 0,
                "muirGlacierBlock": 0,
                "berlinBlock": 0,
                "londonBlock": 0,
                "clique": {
                    "period": 0,
                    "epoch": 0
                },
                "arbitrum": {
                    "EnableArbOS": true,
                    "AllowDebugPrecompiles": false,
                    "DataAvailabilityCommittee": true,
                    "InitialArbOSVersion": 11,
                    "InitialChainOwner": "0xd65776c5F9fA552cB5C9556B3e86bF6c376b233b",
                    "GenesisBlockNum": 0
                }
            },
            "rollup": {
                "bridge": "0x7983403dDA368AA7d67145a9b81c5c517F364c42",
                "inbox": "0x7AD2a94BefF3294a31894cFb5ba4206957a53c19",
                "sequencer-inbox": "0x8D99372612e8cFE7163B1a453831Bc40eAeb3cF3",
                "rollup": "0xf993AF239770932A0EDaB88B6A5ba3708Bd58239",
                "validator-utils": "0x2b0E04Dc90e3fA58165CB41E2834B44A56E766aF",
                "validator-wallet-creator": "0x9CAd81628aB7D8e239F1A5B497313341578c5F71",
                "deployed-at": 19898364
            }
        }
    ]' \
    --node.data-availability.enable \
    --node.data-availability.rest-aggregator.enable \
    --node.data-availability.rest-aggregator.urls=https://das-gravity-mainnet-0.t.conduit.xyz \
    --execution.forwarding-target=https://rpc.gravity.xyz \
    --node.feed.input.url=wss://relay-gravity-mainnet-0.t.conduit.xyz \
    --parent-chain.blob-client.beacon-url="$ETH_BEACON_RPC"

Additional Information

The chain info is obtained from Conduit:

curl https://api.conduit.xyz/file/v1/arbitrum/chaininfo/gravity-mainnet-0

Relay endpoint is provided by Conduit as wss://relay-gravity-mainnet-0.t.conduit.xyz
Gravity Alpha Mainnet uses Anytrust DA, with aggregator URL: https://das-gravity-mainnet-0.t.conduit.xyz

References

For more information, please check out the following guides:

PreviousUsing Gravity Alpha Mainnet (L2)NextRun a Gravity Testnet Sepolia (L2) Node

Last updated 9 days ago

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#!/bin/bash # Define dependent variables LOCAL_DIR="TODO" # Replace with your local directory path ETH_MAINNET_RPC="TODO" # Replace with your Ethereum mainnet RPC endpoint ETH_BEACON_RPC="TODO" # Replace with your Ethereum beacon chain RPC endpoint # Run the Docker container docker run --rm -it \ --add-host=host.docker.internal:host-gateway \ -v "$LOCAL_DIR:/home/user/.arbitrum" \ -p 0.0.0.0:8547:8547 \ -p 0.0.0.0:8548:8548 \ offchainlabs/nitro-node:v3.5.1-8f247fd \ --parent-chain.connection.url="$ETH_MAINNET_RPC" \ --chain.id=1625 \ --chain.name=conduit-orbit-deployer \ --http.api=net,web3,eth \ --http.corsdomain="*" \ --http.addr=0.0.0.0 \ --http.vhosts="*" \ --chain.info-json='[ { "chain-id": 1625, "parent-chain-id": 1, "chain-name": "conduit-orbit-deployer", "chain-config": { "chainId": 1625, "homesteadBlock": 0, "daoForkBlock": null, "daoForkSupport": true, "eip150Block": 0, "eip150Hash": "0x0000000000000000000000000000000000000000000000000000000000000000", "eip155Block": 0, "eip158Block": 0, "byzantiumBlock": 0, "constantinopleBlock": 0, "petersburgBlock": 0, "istanbulBlock": 0, "muirGlacierBlock": 0, "berlinBlock": 0, "londonBlock": 0, "clique": { "period": 0, "epoch": 0 }, "arbitrum": { "EnableArbOS": true, "AllowDebugPrecompiles": false, "DataAvailabilityCommittee": true, "InitialArbOSVersion": 11, "InitialChainOwner": "0xd65776c5F9fA552cB5C9556B3e86bF6c376b233b", "GenesisBlockNum": 0 } }, "rollup": { "bridge": "0x7983403dDA368AA7d67145a9b81c5c517F364c42", "inbox": "0x7AD2a94BefF3294a31894cFb5ba4206957a53c19", "sequencer-inbox": "0x8D99372612e8cFE7163B1a453831Bc40eAeb3cF3", "rollup": "0xf993AF239770932A0EDaB88B6A5ba3708Bd58239", "validator-utils": "0x2b0E04Dc90e3fA58165CB41E2834B44A56E766aF", "validator-wallet-creator": "0x9CAd81628aB7D8e239F1A5B497313341578c5F71", "deployed-at": 19898364 } } ]' \ --node.data-availability.enable \ --node.data-availability.rest-aggregator.enable \ --node.data-availability.rest-aggregator.urls=https://das-gravity-mainnet-0.t.conduit.xyz \ --execution.forwarding-target=https://rpc.gravity.xyz \ --node.feed.input.url=wss://relay-gravity-mainnet-0.t.conduit.xyz \ --parent-chain.blob-client.beacon-url="$ETH_BEACON_RPC"