| 摘要 |
A tamper resistant lottery ticket for preventing payoff of invalid tickets comprises a ticket body and a plurality of game fields which are choosable by a lottery player. At least one winning symbol for the ticket is positioned in a game field, and a scratch-off material covers the game fields to hide contents of the game fields and therefore hide the at least one winning symbol. The scratch-off material is removable by a lottery player to reveal the contents of a game field when the game field is chosen. A readable security code is printed in each of the game fields, and the security code is covered by a scratch-off material with the at least one winning symbol and is revealed when the content of the game field is chosen and the scratch-off material is removed. A magnetic strip is utilized to contain the serial number of the lottery ticket and any other information necessary for identifying the ticket or playing the particular lottery game. The magnetic strip may be read in a conventional way, and the information extracted from the magnetic strip is used to verify the winning ticket and its validity. The security codes of the ticket may be read and used with the magnetic strip information to ensure that the proper number of game field contents are revealed and the lottery ticket is valid.
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