If you have a camera and a web browser, you can use Branta's Cross Device QR scan to make sure you don't have a single point of uncertainty.
Don't trust, verify. In action:
https://blossom.primal.net/2d305f8d83a24979b4245523604c2a8466d33def6c980bc4e0c0bdaff1d81271.mov
