Can Third-party deprecation trail token be valid across multiple sites or needs separate for each site

[kumarrishav]

Let's say, My site A that gets embedded across multiple sites B,C,D.

so, if I am creating a token (https://developer.chrome.com/origintrials/#/view_trial/3315212275698106369) and adding in my site A, will it work across multiple sites B,C,D?

or is this token specific for the particular site (who is embedding site A)?

Basically, what's the web origin in the register form stands for ? (origin of the host site who is embedding Site A or site A origin where it's hosted)