Lottery ticket integrity number

Details Lottery ticket integrity number Lottery ticket integrity number

1986-07-11

1988-02-16

Bell, Paul A.

Printed matter

Having revealable concealed information, fraud preventer or...

Cryptogram

273139, 283 70, 283903, B42D 1500

Patent

active

047250798

ABSTRACT:
A method for enhancing the security of instant lottery tickets. A book number indicating from which packet a particular lottery ticket originated is printed on the back of the ticket and an integrity number is printed on the front of the ticket. The integrity number is related to the book number by an algorithm known only to the ticket manufacturer and the lottery administration. To further enhance the security of the ticket, the book number and integrity number are simultaneously printed onto the ticket.

REFERENCES:
patent: 3351005 (1967-11-01), Giori
patent: 3556563 (1971-01-01), Scheinberg et al.
patent: 3900219 (1975-08-01), D'Amato et al.
patent: 4033611 (1977-07-01), Johnsen
patent: 4099721 (1978-07-01), Logander
patent: 4174857 (1979-11-01), Koza
patent: 4241942 (1980-12-01), Bachman
patent: 4398708 (1983-08-01), Goldman et al.
patent: 4585254 (1986-04-01), Adams
patent: 4591190 (1986-05-01), Clark

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