Essentially same use case as an open dime, but reusable: offline sats that can be physically exchanged without necessarily moving a UTXO

Ex:

The year is 2035. I put 100K sats on a satscard.

I go to the car dealership, and pick out my favorite luxury vehicle.

I hand the salesperson my satscard; they scan it to verify the amount is accurate, and I drive away with the car.

That 100K satscard can be passed to the next user, or it can be “unsealed” and deposited into the business’ wallet address.