Use case: Unboxing proof (high-value items)

Packing integrity: seal packing checklist version + optional packing photo hashes.
Serial/SKU integrity: seal a serial/SKU note document (no PII) + invoice hash.
Bundle: generate the Dispute Evidence Bundle and share verify links for all receipts.

Pain: high-value disputes are expensive and evidence requirements feel inconsistent. A clean integrity timeline helps reduce friction and support load.