PR with Payload

https://github.com/BalancerMaxis/multisig-ops/pull/1770

Summary

As part of the transition of GHO liquidity from Balancer v2 to v3 on Arbitrum, @TokenLogic proposes enabling the new Boosted 3pool gauge. Additionaly, with the recent launch of GHO on Base and the deployment of Balancer v3 on the same network, we want to implement a Boosted GHO/USDC pool to make this pool the home of GHO on Base.

These pools are to be considered “core pool” under BIP-19, meaning the protocol fees earned by these pool would be used to bribe for votes on it.

Motivation

Following the success of the Boosted 3pool on Ethereum mainnet, we are now looking to replicate this approach on Layer 2 networks. Arbitrum and Base present the most suitable environments for this expansion, and we aim to introduce similar pools and gauge mechanisms to enhance liquidity efficiency and yield opportunities on these chains.

All the assets presented in the proposal will be deployed on Aave v3 instances:

Arbitrum

• GHO
• USDC
• USDT0

Base

• GHO
• USDC

The following Balancer v3 pools and gauges are to be created:

Network	Pool Type	Constituents
Arbitrum	Boosted	aArbGHO / aArbUSDC / aArbUSDT
Base	Boosted	aBasGHO / aBasUSDC

For information specific to each of the constituents mentioned in the above table, please refer to the following Balancer v2 forum posts.

• GHO/USDC/USDT Gauge Proposal

You can find detailed information about all these assets in the rate provider registry, which serves as a comprehensive source for all relevant details required for the review.

USDT on Arbitrum has been updated to USDT0, adopting the LayerZero OFT standard. This update ensures that USDT0 remains fully backed on a 1:1 basis with USDT on Ethereum. Users can redeem USDT0 by unlocking the corresponding USDT on Ethereum directly from Arbitrum, maintaining seamless interoperability and asset security.

Specification

Enable Gauges

The Balancer Maxi LM Multisig 0xc38c5f97B34E175FFd35407fc91a937300E33860 will interact with the GaugeAdderv4 at 0x5DbAd78818D4c8958EfF2d5b95b28385A22113Cd and call the addGauge function with the following arguments based on the table above:

Boosted 3pool Arbitrum

Pool address: 0x19B001e6Bc2d89154c18e2216eec5C8c6047b6d8 Root Gauge: 0x9b237fa1958e3022464343137738926d38815801 Child Gauge: 0x915475b32983b7eb1235c1b6752149b454f81ad8 GaugeType(string): Arbitrum

Boosted aBasGHO/aBasUSDC Base

Pool address: 0x7AB124EC4029316c2A42F713828ddf2a192B36db Root Gauge: 0x1da19f38eb6f2c22199dc0848118b26095c29aed Child Gauge: 0x70db188e5953f67a4b16979a2cea26248b315401 GaugeType(string): Base

Disclosure

TokenLogic is a service provider to Aave DAO and receives no payment for creating this proposal.

Maxi Edits:

1. Assign BIP number in title and Add payload PR
2. Update Arbitrum Root and Child gauge due to typo