Arbitrum

Firehose configuration for Arbitrum One

This page provides Arbitrum One specific configuration. First read the Ethereum general notes for common information.

Docker Image

ghcr.io/streamingfast/nitro:<version>-fh3.0

View available versions on GitHub Packages

The image contains both the Firehose-patched Nitro binary and fireeth.

Client Binary

Client	Repository
Nitro (Firehose-patched)	streamingfast/nitro

Networks

Network	Chain Name
Arbitrum One	arb-one
Arbitrum Nova	arb-nova
Arbitrum Sepolia	arb-sepolia

L1 Dependency

Arbitrum requires access to an Ethereum L1 node (both execution and beacon client) for operation. The L1 connection is used for state validation and blob data retrieval.

Reader Node Configuration

Arbitrum One

fireeth start reader-node <apps> \
  --advertise-chain-name="arb-one" \
  --reader-node-path="nitro" \
  --reader-node-arguments="--parent-chain.connection.url=<l1-rpc-url> --parent-chain.blob-client.beacon-url=<l1-beacon-url> --chain.id=42161 --execution.vmtrace.tracer-name=firehose" \
  <other_flags...>

Arbitrum Nova

fireeth start reader-node <apps> \
  --advertise-chain-name="arb-nova" \
  --reader-node-path="nitro" \
  --reader-node-arguments="--parent-chain.connection.url=<l1-rpc-url> --parent-chain.blob-client.beacon-url=<l1-beacon-url> --chain.id=42170 --execution.vmtrace.tracer-name=firehose" \
  <other_flags...>

Key Nitro Flags

Flag	Description
--execution.vmtrace.tracer-name=firehose	Required. Enables Firehose Protocol output
--chain.id	Chain ID (42161 for Arbitrum One, 42170 for Nova)
--parent-chain.connection.url	Ethereum L1 RPC endpoint
--parent-chain.blob-client.beacon-url	Ethereum L1 beacon client endpoint

Resources

• Arbitrum Documentation

• streamingfast/nitro

• Arbitrum Node Running