# \[BIP-574\] Enable stataOptUSDT/stataOptUSDCn gauge \[Optimism\] **URL:** \ **Category:** BAL Gauges\ **Created:** [March 20, 2024, 6:16pm UTC](https://forum.balancer.fi/t/bip-574-enable-stataoptusdt-stataoptusdcn-gauge-optimism/5642 "2024-03-20T18:16:11Z")\ **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, 6:16pm UTC](https://forum.balancer.fi/t/bip-574-enable-stataoptusdt-stataoptusdcn-gauge-optimism/5642/1 "2024-03-20T18:16:11Z")
### PR with Payload > > > \- enable E-CLP for stataOptUSDT/stateOptUSDCn gauge on OP > \- rate providers 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-574-enable-stataoptusdt-stataoptusdcn-gauge-optimism/5642/1 > # Summary > > - This is a proposal to enable one uncapped Balancer gauge for stataOptUSDT/stataOptUSDCn on Optimism. > - 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 > > - stataOptUSDT is the wrapped, static version of the rebasing Aave lending deposit token for aUSDT. - [Aave](https://github.com/bgd-labs/static-a-token-v3) > - stataOptUSDCn is the wrapped, static version of the rebasing Aave lending deposit token for aUSDC. - [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 stataOptUSDT): [0x3f921Ebabab0703BC06d1828D09a245e8390c263](https://optimistic.etherscan.io/address/0x3f921Ebabab0703BC06d1828D09a245e8390c263#code) > > - rateProvider1 (for stataOptUSDCn): [0xdFa8d2b3c146b8a10B5d63CA0306AEa84B602cfb](https://optimistic.etherscan.io/address/0xdFa8d2b3c146b8a10B5d63CA0306AEa84B602cfb#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: [0x8BB826Afc0fF7d2c034a2883F4C461ffD238E1C3](https://optimistic.etherscan.io/address/0x8bb826afc0ff7d2c034a2883f4c461ffd238e1c3#readContract) > > - Childchain gauge on Optimism: [0x6EF729bd61dca1B9B52745db37d43503ae0916f9](https://optimistic.etherscan.io/address/0x6EF729bd61dca1B9B52745db37d43503ae0916f9#readContract) > > - Optimism root gauge on Ethereum: [0x1a8F7747cA103d229d7bDFF5f89c176b95Faf301](https://etherscan.io/address/0x1a8F7747cA103d229d7bDFF5f89c176b95Faf301) > 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): `0x1a8F7747cA103d229d7bDFF5f89c176b95Faf301` > > gaugeType(string): `Optimism` ---
**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, 8:43pm UTC](https://forum.balancer.fi/t/bip-574-enable-stataoptusdt-stataoptusdcn-gauge-optimism/5642/2 "2024-03-27T20:43:37Z")
[https://snapshot.org/#/balancer.eth/proposal/0xb197e1de805a8f5af285ed9b1aeb94fd9d731e823514dea57716400276ffe747](https://snapshot.org/#/balancer.eth/proposal/0xb197e1de805a8f5af285ed9b1aeb94fd9d731e823514dea57716400276ffe747)