Blockchain for Supply Chain: What It Can and Cannot Prove
Sort the claims before you scope This category makes a handful of standard promises. Some are physically impossible, one is marketing, and a few produce numbers a finance director can check. Sorting them before anyone scopes a build is most of the work, and the step usually skipped. The distinction underneath all of it: a ledger gives strong assurance that a record has not been altered since it was written, and none that the record was true when written. Every claim below either survives that sentence or does not. Fails: proof of origin Take coffee. Cherries from many smallholder farms go into the same fermentation tank and dry on the same beds. Lot identity is destroyed by the process itself, before any software is involved. Tracking a blended commodity back to one farm is an approximation by construction, and calling it proof overstates what exists. Even without blending, the binding between a physical thing and its record is made by a person or device at the point of entry. Sc...