Your pass
Your own line, over your own time. This page reads your pass link if you arrived with one, and your own browser if you did not.
One question for you
Erase
This deletes every check-in held in this browser. Anything you saved elsewhere, such as a downloaded text file, is unaffected.
A pass travels in the link itself. That means a shared link is a shared pass, and a lost link is a lost history. Keep it somewhere you will find it, or keep the text file.