Transmute solves for offline traceability with Tangem.

Supply chains are complicated. While over 80% of logistics companies are investing in digitization to bring their supply chains into the 21st century, at the end of the day, not every step along the way can be web-enabled. Provable identification is equally as important in these offline gaps, but far harder to achieve; part of the problem is ensuring seamless traceability across events like shipment handoffs [and associated documentation exchange] that happen offline versus the ones that occur online.

Transmute has been working on a solution: tying DIDs to Tangem NFC Cards, which carry a passport-grade secure chip, which implements public key cryptography. Near Field Communication (NFC) is the technology that enables things like contactless payments (e.g. Apple or Android pay), but it’s also being more increasingly used in supply chains for things like inventory and warehouse management [via contactless counting of products on shelves]. Much like DIDs, they provide unique identification for the objects they represent (like your cell phone), but they’re notoriously limited when it comes to data storage and as such have long been outpaced by other web-enabled identification technologies like the QR code. …