Warehouse receipts backed by physical fuel oil, bitumen or rubber have collateral value that tracks market.json. Feed live quotes into the loan-to-value model and a single-day move like Brent's 3.78% automatically recomputes haircuts and trips margin calls or releases — turning manual mark-to-market into a quote-triggered loop.

SNSUC digital warrants compute a SHA-256 digest in-browser over five fields and anchor it on-chain; buyers verify locally. ESG carbon fields travel with the cargo for Scope 3 pull.

Warrant fingerprint on-chain; issuing bank's first check is accepted by financing and custodian banks.