1. A method, performed by a computer system comprising at least one computer, for providing and verifying counterfeit resistant documents that can be presented for use, the method comprising, the computer system: receiving a request from a user computer for a document that can be presented for use; subsequent to receiving the request, electronically transmitting the document to a user device, wherein the electronically transmitted document comprises unique information configured to be rendered by the user device in a machine readable form; receiving a first communication of the unique information from a first input device in association with a machine read of the unique information by the first input device during a first presentation of the document for use; verifying the first communicated unique information by determining that the unique information is valid; checking a database to determine that the first communicated unique information has not been previously read in association with a previous presentation for use; in response to determining that the first communicated unique information has not been previously read, providing a first signal at the location of the first input device at the time the document is first presented; and updating the database to indicate that the unique information has been received in association with a presentation for use.
15. The method of claim 1 , wherein the document is an admission ticket.