Wouldn't actual proof to be valid need ability to send and receive email and transfer money? Then it could do things like: "hey, do you have seeds? Send me pic

Wouldn't actual proof to be valid need ability to send and receive email and transfer money? Then it could do things like: "hey, do you have seeds? Send me pictures. I'll pay if I like them" or "I want to lease this land, I'll wire you the money." or "Seeds were delivered there, I need you to get your machinery and plant it"