How do I know the income my tokenized property reports on-chain is real?

Tokenized real-world assets promise programmable income distribution, but the income itself originates entirely off-chain. Rent is collected by a property manager, loan repayments flow through a bank, and bond coupons pass through a custodian. Someone must attest that the amount pushed on-chain matches what was actually received, and today that attestation is almost always a trusted party with no cryptographic proof attached. A 2026 systematization-of-knowledge survey covering all major RWA tokenization architectures concluded that the off-chain data integrity layer is the least mature component across every deployment category examined. Token holders have no mechanism to verify the cash flow report without trusting the issuer, which reintroduces the exact counterparty risk tokenization was supposed to remove.