Abstract: A lottery ticket validation system validates a probability lottery ticket that has predetermined play rules and that includes a plurality of player removable material covering play spots that in turn cover play indicia located in predetermined locations on the ticket. In addition, validation data is printed on the ticket in the form of a bar code. The validation system includes a housing, a controller located in the housing, a document channel configured in the housing, a sensor, a data reader, a transport mechanism, a scanning circuit, a memory, a processor, and a stigmatization circuit. The sensor includes an optical detector located in the housing and operatively connected to the controller. The data reader is operatively connected to the controller and is adapted to read the bar code. The transport mechanism is located in the housing and is operatively connected to the controller. The transport mechanism includes at least one roller, a plurality of ticket sensors, and a motor.

Abstract: Determination of the authenticity and integrity of various types of documents such as lottery tickets is accomplished by using an electronic verification machine to compare data contained in electronic circuits printed on the document to document data printed on the document. The electronic circuits are printed on the document in conductive or semiconductive ink using, for example, the gravure printing process, and the presence and status of the circuits can be used to verify or authenticate the document. Data can be represented in the electronic circuits by the electrical signature of the circuit which is measured by the electronic verification machine. In the case of lottery tickets, a ticket can be validated by having the electronic verification machine determine which play spots have been removed from the ticket and comparing data on the ticket with the removed play spots to determine a play redemption value for the ticket.