A system and method for providing multiple levels of verification of
content displayed on an electronic display. A verification code signal
representative of a verification code may be displayed with the visual
content. The verification code may be sensed and determined to verify
that the visual content was displayed. A timestamp may be generated to
indicate time of day that the visual content is displayed. In one
embodiment, the verification code signal may be displayed in one or more
colors and sensed. Verification that the visual content was displayed
with correct colors may be made based on the sensed visual verification
code signal. Verification that the visual content was displayed at a
certain time and with the correct colors may be provided to an owner of
the visual content, such as an advertiser.