SNSUC digital warehouse receipts anchor title at the browser: each intake mints a 256-bit SHA-256 fingerprint, the owner key signs locally, the hash goes on-chain, and bill of lading plus inspection certificate bind through a second hash. A paper note can be altered with one stamp run; a chained receipt needs the whole hash recomputed to change a single field — forgery shifts from calling a contact to breaking the hash, a different order of cost.

On carbon, we tag ESG by category: the heavy chain carries voyage miles and refinery emission factors, the rubber chain carries planting and processing energy. A buyer opening any receipt on the traceability page sees the full hash chain from load port to delivery plus the carbon tally, cutting the back-and-forth of repeated third-party due diligence.