PIP-52: Paloma Messenger Support for Arbitrum

PIP Name: PIP-52: Paloma Messenger Support for Arbitrum

Status: Proposed

Author(s): @LARRY

Type: EVM Proposal

Discussions-to: Governance - Paloma

Created: 12/11/2023

Simple Summary

Activate Arbitrum deployment of the Paloma Compass-EVM vyper contract via the Paloma validator set. Direct the Pigeons to initiate valset updates on EVM chain Arbitrum from the Paloma Messenger Mainnet to launch the newest Paloma bots for executing secure, remote trades on the Arbitrum network and the decentralized exchanges launching there.


This effort will allow the current Paloma validators to add or reconfirm the endpoints for chains that we believe will have liquidity and demand for secure cross-chain messaging. Our proposal for the governance vote is as follows:


Paloma is meant to monitor and deliver messages across multiple blockchains that host the most liquidity transactions. The Arbitrum chain hosts Uniswap, Camelot, Curve and Paloma’s validators aim to land their flock of Pigeons to monitor and secure transactions on Arbitrum chain.

Specification Overview

Pigeons will need to update their .pigeon/config.yaml with the details for the Arbitrum Mainnet and Pigeons will need to ensure that they have 0.005 ETH available on their Arbitrum wallets. The initial ETH will be air-dropped by the Paloma Foundation to all active validators on mainnet.

Technical Specification

  1. For the Arbitrum blockchain, we will run the governance command to propose governance for the new EVM chain using the block height 158044978 and at block hash 0x347a03e302c0c6ffa28c261f4eb196f8bcc866742b7deed940a47b16fab2fa3d from Arbitrum Explorer at https://arbiscan.io/
  2. The Arbitrum ChainID is 42161
palomad tx gov submit-legacy-proposal evm propose-new-chain arbitrum-main 100 5000000 158044978 0x347a03e302c0c6ffa28c261f4eb196f8bcc866742b7deed940a47b16fab2fa3d *\*
--title "PIP 52 - Paloma Mainnet Support for Arbitrum EVM blockchain." \
--description "Add Paloma mainnet messenger-client support ****for the Arbitrum mainnet EVM for pigeons to send smart contract control messages via the Paloma blockchain." \
--deposit 10000000ugrain \
--fees 400ugrain \
--gas 400000 \
--from=<Paloma Address> \
--chain-id=messenger \
  1. Pigeons will also have to update their ~/.pigeon/config.yaml file to add the new EVM-chain, information for Arbitrum.

Pigeons query the Arbitrum chain and query for the submitted block height and block hash sent by Paloma and compare them to confirm they are on the right chain for Pigeon.

If someone misconfigured their files, it would throw an error that the block height and hash are not matched.

  chain-id: 42161
  base-rpc-url: ${ARB_RPC_URL}
  keyring-pass-env-name: ARB_PASSWORD
  signing-key: ${ARB_SIGNING_KEY}
  keyring-dir: ~/.pigeon/keys/evm/arb-main
  gas-adjustment: 2
  tx-type: 2
  1. Pigeons will need to set up up their Arbitrum EVM Keys. Don’t forget your passwords!
pigeon evm keys generate-new ~/.pigeon/keys/evm/arb-main

or import existing you existing Arbitrum EVM private keys

pigeon evm keys import ~/.pigeon/keys/evm/arb-main

Wallet Funding Requirement

ARB-MAIN: This wallet will require 0.005 ETH for funding. Volume will provide 0.005 ETH to all Paloma Validators on their accounts to help them get ready for Arbitrum deployment of Compass-EVM . Paloma Foundation will refund payments daily based on balances spent from Paloma main chain use.


The L2s are a new opportunity for Paloma as it explores building Copytrading bots on Arbitrum options dexes such as Rysk and GMX. We are excited to have the Paloma pigeons with a strong use-case to support Arbitrum.

To learn more about Paloma, please visit https://palomachain.com

To follow the project on Github, please star the project GitHub - palomachain/paloma: The fast blockchain messenger protocol

To participate in the community, please join the Paloma Discord: Paloma

About Paloma

Paloma Protocol is a Cosmos-SDK blockchain protocol custom-built for omnichain communication that allows permissionless controls of any contract on any chain. Built by Volume, Paloma delivers the world’s first intelligently scheduled and automated smart contract transaction execution for the Cosmos ecosystem. The protocol enables developers to remotely control the transmission of value without the need to wrap, bridge tokens, or trust validators with their digital assets. Led by founding members of Sommelier, Paloma is building the primary
communication layer of Web3.