Collateral & vault
The one collateral asset, the vault that holds it, and how each user's share is committed.
USDCx
Titan uses one collateral asset: USDCx, on the Canton Network. Margin, profit and loss, fees and funding are all settled in it.
The vault
All deposits sit in a single vault contract on the Canton ledger. The vault holds the total.
Each user's share of it is tracked by the matching engine and committed every cycle in that user's state leaf. You can check your own share with Verify a cycle.
Everything adds up
Balances are stored as exact integers. The auditor reconciles every committed account against what the vault holds, to the last unit, with no rounding tolerance.