Snapshot 3: Deploy a Protocol-owned tETH/wstETH Fundamental Exchange Rate Feed on TAC

Summary

This proposal seeks community approval for the protocol to deploy a tETH/wstETH Fundamental Exchange Rate Feed directly on TAC.

Currently, Chainlink oracle feeds are not yet live on TAC, which hinders key DeFi integrations such as setting up Curve LP pools.

To address this, Treehouse proposes building and maintaining its own tETH/wstETH Fundamental Exchange Rate Feed directly on TAC, ensuring reliable infrastructure for tETH integrations and ecosystem growth.

If approved, this feed will be deployed by the protocol multisig, updating at the same cadence as tETH’s accounting process to ensure accuracy and consistency.

Motivation

Treehouse has been collaborating with TAC to expand the reach of tAssets, specifically, tETH. However, the lack of live Chainlink oracles on TAC currently restricts tETH’s wider adoption.

By deploying a protocol-owned feed, Treehouse can:

• Enable DeFi integrations such as Curve pools on TAC.
• Maintain pricing transparency and reliability, independent of Chainlink’s deployment schedule.
• Strengthen protocol sovereignty by reducing external dependencies and controlling key infrastructure.

This deployment supports Treehouse’s broader mission to make fixed income infrastructure interoperable, accessible, and resilient across chains.

Specification

If approved, this proposal will:

• Deploy a tETH/wstETH Fundamental Exchange Rate Feed on TAC.
• Implement the following methodology:
  • Query exchange rate data directly from the tETH ERC-4626 contract on Ethereum mainnet using the convertToAssets function.
  • Write the resulting exchange rate to the oracle smart contract deployed on TAC.
  • Update the feed with the same frequency as tETH’s PnL accounting cycle.
• Assign protocol-owned multisig control of the oracle.
• Subject any future upgrades or parameter changes to DAO governance.

Implementation Plan:

• Development by Treehouse core engineering team.
• Audit by security firms.
• Deployment and monitoring post-approval.
• Estimated completion: 5 weeks (4 weeks development + 1 week audit).

Voting Options

• For – Approve the deployment of a protocol-owned tETH/wstETH Fundamental Exchange Rate Feed on TAC
• Against – Reject the proposal
• Abstain – Record sentiment without voting for or against

Voting Outcomes

• If FOR passes:
  The Treehouse protocol will deploy and maintain the tETH/wstETH Fundamental Exchange Rate Feed on TAC, enabling integration of tETH with DeFi protocols on the chain.

• If AGAINST passes:
  No feed will be deployed, and tETH integrations on TAC will remain limited until third-party oracle solutions (e.g., Chainlink) are launched.

• If ABSTAIN:
  No direct effect; recorded for sentiment but not counted toward quorum.