SNSUC's browser-side SHA-256 fingerprint hashes each resale title's key fields — bill of lading number, vessel, quantity, delivery warehouse — into a tamper-proof digest written to an on-chain record. Until now that step proved the cargo existed, not where it was or whether it had moved.

Newly linked IoT tank gauges stream live level, temperature and valve status from bonded tanks and barges, cross-checked against the on-chain hash. While title is in transit, the bank no longer sees a static receipt but a time-stamped, dynamic evidence chain.

Across the seven resale grades — ESPO, Dubai, Oman, Urals, Basrah Light, Bonny Light and Lula — this lets endorsement and pledge funding run in parallel. Cargo still at sea gets funded at T+0 against arrival value, pulling the negotiation cycle from T+3 to T+0.

The hard part is aligning the hash and the sensor readings in the same window. Gauges tick every 15 minutes; the SHA-256 fingerprint is minted per batch; the two bind through timestamps, and any mismatch trips a review. That adds a layer of physical trust on top of mere record-keeping.