Stars are the consumer surface. ARZ is the on-chain primitive. They are 1:1 by design.
Member surface (USD-friendly): 1 Star = $1 against the member's debt. Stars are USD-pegged utility credits, redeemable only against verified consumer debt (closed-loop). Stars are not securities, not investment products, not tradeable tokens. Reserves are USDC + FDIC custody, with daily proof-of-reserve and quarterly attestation.
Protocol surface (on-chain): Every Star credited to a member corresponds to one ARZ minted by the on-chain Minter contract, signed by the Bio-Bridge Oracle, and routed to the Debt-Tether contract for atomic burn-on-settle against the member's acquired debt obligation.
The two surfaces are connected through the SettlementAdapter — a contract that translates Stars-credit instructions from the member dashboard into ARZ mint/burn actions on Base L2. Members never touch a wallet, a private key, or a gas fee. Counsel attestation: Stars fail every prong of Howey (no investment of money, no common enterprise, no expectation of profit, no reliance on others' efforts).