For the message to be decrypted when the time comes, these characters must be entered on the page tellyoulater.com/decrypt after the time comes:
Option 3: QR code
A matrix barcode that contains a link to the encrypted message. You can simply take a picture of it using your smartphone, if you have a QR code reading application.
Attention! To see the QR code, you'll need to shorten the link by clicking the button above.