Hello guys

Great forum.

A couple questions hoe you can help.
I just received my approval I-797A paper for an o-1 visa with an I-94 part at the bottom.

The I-94 has no any departure or expiration date.
Is that right?
There is a valid until - from notice at the left part (personal record)

also let's say there is a new job opportunity. Do I have to let my petitioner/agent know? Does he have to be involved in the process?

What paper do I show to the employer to see I am allowed to work legally in the States?

Thank you all!