Core flow

1. 1. Broker/Shipper creates a shipment.
   They define: destination address, receiver company, expected delivery window, and who is allowed to request changes. Veriport returns a signed QR code.
2. 2. QR code rides with the cargo.
   Slap it on the pallet, BOL, crate, or container.
3. 3. Any change request goes through Veriport.
   If a carrier texts "new address, boss said reroute to a different warehouse" — that request now has to be logged in Veriport, where the shipment owner can Accept or Deny.
4. 4. Warehouse scans before release.
   At pickup / transfer / handoff, the dock worker scans the QR. The app shows the intended destination and latest approval state. If what’s on the truck doesn’t match → no release.
5. 5. Customer can self-verify.
   Receivers, consignees, even the end buyer can scan to see custody + ETA. No login needed for read-only status.

Why this matters

Cargo theft rings commonly impersonate brokers and “update” delivery locations by phone or email. Warehouses load trucks to the wrong address, and the freight vanishes.

Veriport makes “what is the real destination?” an objective fact, not a vibe check on some dispatcher’s voice.

Trust model

• Signed shipment token
  The QR encodes an ID that maps to an immutable record (destination, receiver, etc.) plus a signature. If someone tries to generate their own QR with a fake address, the signature won’t validate.
• Approval chain
  All “change destination” requests are recorded, with who asked and who approved. You can audit after loss.
• Custody trail
  Every scan updates “who currently holds the freight.” Now you know where something disappeared, not just when.