EXA21
— Prove data is real —
Luxury Goods Provenance
GS1 EPCIS traceability + ISO 22095 chain of custody + GS1 Digital Link — Polymonial seals the manufacturer-to-customer chain so authentic products carry a signed lineage and counterfeits don't.
The problem to solve
Counterfeit goods cost brands and buyers heavily every year. Existing anti-counterfeit measures — holograms, serial numbers, GS1 Digital Link QR codes, blockchain-tagged digital certificates — are themselves counterfeitable or trust-anchored to whoever issues them. The GS1 EPCIS standard provides an event-data structure for traceability and ISO 22095 standardises chain-of-custody, but the cryptographic layer that makes the chain checkable at every supply-chain hop is what's still missing. And no handler — distributor, freight forwarder, retailer — wants to expose their margins, supplier identities, or inventory levels just to populate that chain.
The solution it enables
Polymonial seals a cryptographic identity at production, tied to a GS1 EPCIS commissioning event. Each subsequent handler adds a sealed contribution to the chain — bound to the previous step via EPCIS event data + sealed custody attestation — under crypto-agile primitives that survive algorithm migration. The customer verifies the complete chain at point-of-sale via a GS1 Digital Link scan. Counterfeits fail verification — they have no chain to verify. Handler-to-handler commercial details (margins, supplier identities, inventory levels) stay sealed inside each step; the chain itself is verifiable by anyone.
What it looks like
A luxury watch leaves a Swiss manufacturer with a sealed cryptographic identity tied to a GS1 EPCIS commissioning event. It passes through a distributor in Dubai (EPCIS shipping event + sealed margin), a retailer in Hong Kong (EPCIS receiving event + sealed inventory level), and arrives with a customer in London. The customer scans the watch's GS1 Digital Link QR; the chain verifies — every handler, every timestamp, every custody transfer. A forged record fails verification. No handler in the chain had to expose their commercial details to any other party in the chain to produce the proof.
“GS1 EPCIS chain backed by signatures a counterfeiter does not hold. The watch verifies at the point of sale; supply-chain commercial details stay confidential.”
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