Abstract: An Internet-based, print-at-home, ticketing technology that allows customers to purchase tickets for an event date and show time, if applicable, print the tickets on standard paper using their own printer, and bypass the box office lines at the venue. Customers can proceed directly to the ticket-taker at the venue, present their tickets, and gain admission. The ticket is validated using fraud-proof ticketing software that scans the bar code or other electronic insignia on the printed ticket and ensures that the ticket can never be used twice, thereby preventing fraud through photocopying, double use, etc. For further security, continuous data synchronization with the Internet server guarantees that any attempts at forgery are immediately detected. Customers may also purchase concession stand items as part of their on-line transaction, a certificate for which is printed as part of the ticket. Once validated, this certificate can be exchanged at the concession stand for the appropriate items.