| 摘要 |
A game ticket is disclosed. The game ticket includes a substrate (302), a ga me play area (120, 304) located on the substrate, and a first machine-readable code (210) located on the substrate. The machine-readable code (210) include s a first piece of authentication information. A second machine-readable code (124, 310) is located on the substrate. The second machine-readable code (12 4, 310) includes a second piece of authentication information. A removable opaq ue covering (308) applied to the substrate (302) conceals the game play area (120, 304) and the second machine-readable code (124, 310). The first machin e- readable code (210) is not concealed by the removable opaque covering. Both the first piece of authentication information and the second piece of authentication information are required for authenticating the game ticket. A method and apparatus (712) for using the game ticket is also disclosed.</SDO AB>
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