In a method of a method of linking a unique identifier to an instant game ticket, a user is instructed to enter or provide a unique identifier. The unique identifier is received from the user via input into the identifier entry mechanism. The unique identifier is stored in a computer-readable memory....http://www.google.ca/patents/US6602138?utm_source=gb-gplus-sharePatent US6602138 - System for linking a unique identifier to an instant game ticket
