# \[BIP-575\] Enable stataArbUSDT/stataArbUSDCn gauge \[Arbitrum\] **URL:** \ **Category:** BAL Gauges\ **Created:** [March 20, 2024, 6:19pm UTC](https://forum.balancer.fi/t/bip-575-enable-stataarbusdt-stataarbusdcn-gauge-arbitrum/5643 "2024-03-20T18:19:08Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![jooooo5as](https://avatars.discourse-cdn.com/v4/letter/j/bc8723/32.png) [@jooooo5as](https://forum.balancer.fi/u/jooooo5as)\ **Post date:** [March 20, 2024, 6:19pm UTC](https://forum.balancer.fi/t/bip-575-enable-stataarbusdt-stataarbusdcn-gauge-arbitrum/5643/1 "2024-03-20T18:19:08Z")
### PR with Payload > > > \- enable E-CLP gauge for stataArbUSDT/stataArbUSDCn gauge on Arbitrum > \- rate pr…oviders are implemented with the ERC4626 standard > \- rate provider review: https://github.com/balancer/code-review/pull/33 > \- Forum post: https://forum.balancer.fi/t/bip-575-enable-stataarbusdt-stataarbusdcn-gauge-arbitrum/5643 > # Summary > > - This is a proposal to enable one uncapped Balancer gauge for stataArbUSDT/stataArbUSDCn on Arbitrum. > - The underlying pool is a Rehype Pool, an extension of Gyroscope’s E-CLPs. Rehype Pools auto-rehypothecate E-CLP assets to Aave and can thus accrue yield from three different sources: (1) Aave lending deposit yield, (2) swap yields from asymmetric concentrated liquidity, and (3) yield from third-party token incentive markets. > - The pool shall have a swap fee of 0.5 basis points, i.e., 0.005% at pool inception. A protocol fee of 30% will be set upon incentives going live. This may be changed later upon mutual discussion (this is a new Rehype pool type and fees and growth may need to be fine tuned). At pool inception, no fees will go towards Gyroscope. > # References/Useful links > > - [Documentation of Rehype pools](https://docs.gyro.finance/gyroscope-protocol/concentrated-liquidity-pools/rehype-e-clps#description-of-rehype-e-clps) > - [Website](https://gyro.finance/) > - [Github](https://github.com/gyrostable) > - [Discord](https://discord.com/invite/2vnqnS7wE6) > - [X](https://twitter.com/GyroStable) > # Protocol description > > - stataArbUSDT is the wrapped, static version of the rebasing Aave lending deposit token for aUSDT on Arbitrum. - [Aave](https://github.com/bgd-labs/static-a-token-v3) > - stataArbUSDCn is the wrapped, static version of the rebasing Aave lending deposit token for aUSDC on Arbitrum. - [Aave](https://github.com/bgd-labs/static-a-token-v3) > # Motivation > > Rehype pools reach new efficiency heights while staying simple and therefore safer. Rehype pools embrace a simple, modular design that doesn’t introduce new smart contract code for rehypothecation. Rehype pools thus inherit the security record of E-CLPs. > The complexity of Rehype pools is handled in the more flexible layers of order routing and front end interface instead of in smart contracts. > At the same time, they keep everything transparent on-chain and keep users in control, in contrast to common rehypothecation in TradFi. > # Specifications > > > ## Governance > > > > The Gyroscope Protocol will be governed by a DAO and relevant stakeholder with the full launch on Ethereum. For now, the FTL Labs multi-sig can pause the pool, change the swap fee and set the protocol fee. As a custom pool by Gyroscope, the E-CLP will be controlled by Gyroscope governance upon its launch. > > > > ## Oracles > > > > - rateProvider0 (for stataArbUSDCn): [0x87cD462A781c0ca843EAB131Bf368328848bB6fD](https://arbiscan.io/address/0x87cD462A781c0ca843EAB131Bf368328848bB6fD#readContract) > > - rateProvider1 (for stataArbUSDT): [0x48942B49B5bB6f3E1d43c204a3F40a4c5F696ef6](https://arbiscan.io/address/0x48942B49B5bB6f3E1d43c204a3F40a4c5F696ef6#code) > > - (allows to control for a price drift from accruing yield by using rate providers to first convert from yield accruing tokens to the underlying) > > - Reviews for these rate providers can be verified as SAFE [here](https://github.com/balancer/code-review/pull/34/files#diff-5861d38cee7220a0b2672cd05e4233e4058bdc3c7c0d4aa1f7a5e00979bfee8b). > > > > ## Audits > > > > Audit reports by Nethermind, Trail of Bits, and Runtime Verification for the underlying E-CLP can be accessed here (the E-CLP is called the “CEMM” in these reports). In addition, the E-CLP code has been live in production on Polygon since November 2022. ‘Rehype Pools’ are an extension of E-CLP that supports Aave’s statA tokens and outsources much of the complexity of ‘Boosted Pools’ to order routers. > > > > ## Centralization vectors > > > > No centralization vectors. The FTL Labs team’s multi-sig can - currently - pause the pool, change the swap fee and set the protocol fee. > > > > ## Market History > > > > The Gyroscope Protocol is live on Ethereum since EOY23, with E-CLPs on several other chains. Details available [here](https://dune.com/gyro_finance/gyroscope-e-clps). > > > > ## Value > > > > As per “Motivation”. > > > > ## Contracts > > > > - stataOptUSDT/stataOptUSDCn Rehype pool: [0x125bC5a031B2Db6733bfa35d914ffa428095978B](https://arbiscan.io/address/0x125bc5a031b2db6733bfa35d914ffa428095978b) > > - Childchain gauge on Arbitrum: [0x2b52a321Fc2ab77e9fC8488D792BB3CaEA966c0b](https://arbiscan.io/address/0x2b52a321Fc2ab77e9fC8488D792BB3CaEA966c0b#readContract) > > - Arbitrum root gauge on Ethereum: [0xBB034E493eBF45F874e038Ae76576Df9Cc1137e5](https://etherscan.io/address/0xBB034E493eBF45F874e038Ae76576Df9Cc1137e5#readContract) > Specification > Transaction: The Balancer Maxi LM Multisig `eth:0xc38c5f97B34E175FFd35407fc91a937300E33860` will interact with the GaugeAdderv4 at `0x5DbAd78818D4c8958EfF2d5b95b28385A22113Cd` and call the `addGauge` function with the following arguments: > > gauge(address): `0xBB034E493eBF45F874e038Ae76576Df9Cc1137e5` > gaugeType(string): `Arbitrum` ---
**Author:** ![Xeonus](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.balancer.fi/xeonus/32/3621_2.png) [@Xeonus](https://forum.balancer.fi/u/Xeonus)\ **Post date:** [March 27, 2024, 8:48pm UTC](https://forum.balancer.fi/t/bip-575-enable-stataarbusdt-stataarbusdcn-gauge-arbitrum/5643/2 "2024-03-27T20:48:33Z")
[https://snapshot.org/#/balancer.eth/proposal/0x28e42bc173f15496ee9c63e0cb7974ccb6ae1735b2f471f261da05307b07d450](https://snapshot.org/#/balancer.eth/proposal/0x28e42bc173f15496ee9c63e0cb7974ccb6ae1735b2f471f261da05307b07d450)