Oracle Configuration

Ebisu Key Differences from Liquity V2

https://github.com/liquity/bold/

1. Upgradeability

• All contracts are upgradeable using OpenZeppelin’s UUPS pattern
• 7 days time lock for each contract upgrade proposed

2. Collateral Management

• Supports a dynamic collateral system — new collateral types can be added post-launch
• A dedicated CollateralRegistry contract manages multiple collateral assets
• Each collateral type can have its own configurable redemption fee floor

3. Branch Management

• A BranchManager contract controls protocol parameters for each branch
• Managed by EbisuAdmin, which will transition to governance in the future (see 7)
• Configurable parameters per branch include:
  • MCR (Minimum Collateral Ratio) - 24 hour timelock
  • CCR (Critical Collateral Ratio)
  • Debt cap per branch - 24 hour timelock
  • SP yield split
  • Minimum debt
  • Redemption fee floor
  • Minting pause mechanism
  • InterestRouter - EbisuAdmin has the ability to change the interest router
  • Minimum annual interest rate - 24 hour timelock
• Oracles

4. 8 decimals token solution such as LBTC

• The Liquity V2 protocol doesn’t natively support collateral tokens with decimals other than 18.
• Our solution — originally proposed by the previous auditors — is to adjust the price feed to include the decimal gap.
• For example: