For promoters and venues

Somebody sent you
a booking link.

It opens one booking — the offer, the rider and the documents the artist ticked. You do not need an account, you will not be asked to make one, and the link only ever shows that one show.

The offer — the date, the set time and the fee that has been proposed to you.
The rider, and only the documents the artist attached to this booking.
The contract, and a button to accept it. When you accept, TheJay records your name, the time, and a checksum of exactly what was on the screen — so what you agreed to stays provable if the file is ever replaced.
Not the artist's other bookings, their fees elsewhere, or what an agency makes on this one.
Not anything the artist has written privately about you. Those notes exist and they are theirs. No link, including this one, can reach them.
What we can see about you. That the link was opened, and when. That is the whole list — it is there so the artist knows whether to chase you, not so anybody can profile you. If you accept, your name and the time are recorded because that is what an acceptance is.

TheJay is where the artist or agency who booked you runs their work. Go back to your email and open the link they sent — this page has no way to find your booking, deliberately.