Arcadia Creditor contract addresses across Base, Optimism, and Unichain: Lending Pools (WETH, USDC, cbBTC), Tranches (Senior), and Wrapped Tranches (ERC-4626 compliant).
The Lending pools are responsible for the:
Accounting of the liabilities of borrowers via the debt tokens (ERC4626).
Accounting of the liquidity of the Liquidity Providers, via one or more Tranche(s) (ERC4626).
Management of issuing and repaying debt.
Management of interest payments.
Settlement of liquidations and default events.
Each Lending Pool has one or more Tranche(s). The Liquidity Providers do not provide Liquidity directly to the Lending Pool, but via a Tranche. Each Tranche contract will do the accounting of the balances of its Liquidity Providers, while the Lending Pool will do the accounting of the balances of its Tranches. A Tranche is according the ERC4626 standard, with a certain ERC20 as underlying asset. The Tranche is not compliant with ERC4626 on the approval flow: the approval goes to the Lending Pool instead of the Tranche, the deposit() is called on the Tranche itself.
A Wrapper of the Tranche contract is deployed for each Tranche. The Wrapper is fully compliant with ERC4626 and can be preferably used in integrations.
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