Asset-Backed User Equity (ABUE): A Transaction-Layer Hard-Budget, Auditable-Settlement, Use-Locked Buyback-Cash Mechanism under the CGA Paradigm

Digital platforms convert participation into transactions, then into profits, and ultimately into capitalized asset value. Yet users are typically compensated with expensed incentives—discounts, coupons, points, or cashback—rather than transferable, auditable claims on residual value. This creates a structural capitalization gap. We propose Asset-Backed User Equity (ABUE): a transaction-layer mechanism that distributes an equity-value claim to users after real after-tax profit is recognized, and backs the claim with use-locked buyback cash under hard-budget constraints. ABUE is an instance of Contribution-Generated Assets (CGA): it does not rely on off-chain collateral narratives, but on recomputable cashflow constraints, commitment-based disclosure, and auditable settlement. ABUE can incorporate C/S/G contribution inputs and audit-executable weights (e.g., via Proof of Contribution), but it does not depend on any single contribution algorithm. We provide ABUE’s formal constraints, invariants (hard budget, coverage, origin purity, use-lock), a minimal disclosure row (ABUEMVD), and a minimal reproducible audit artifact package (ReproPack) including a 10-entry commitment chain with inclusion proofs. We also outline testable predictions and default empirical designs. The goal is to make “equity return to users” a falsifiable, audit-recomputable institutional property rather than a narrative.