Reading this shop's payee file…
A changed link
This link names this shop but pays someone else: its payee was swapped. SpiffyVault should refuse to pay it.
How this works
Every link here carries d=shop.spiffyvault.net. Before paying, SpiffyVault reads
/.well-known/spiffyvault.json on this site and pays only
when it lists the link's payee, signed by the payee.
Scan a code with SpiffyVault, or tap a link on the phone that has SpiffyVault.