| http://www.w3.org/ns/prov#value | - As shown in FIG. 6, the key-sequence pattern can either be printed on the card 7 (e.g., when the card is made of thin plastic film), such as via selected viewing portions 9 that are formed in or through a non-viewing blocking portion 8, or it can be holes 9 punched through an opaque card 8 (e.g., when the card is made of plastic or other similar materials).
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