CONTENT-MODIFICATION SYSTEM WITH TRANSMISSION DELAY-BASED FEATURE

In one aspect, a method includes determining a content-transmission delay between a content-distribution system and a content-presentation device. The method also includes using at least the determined content-transmission delay as a basis to select, from among a plurality of reference fingerprint data sets, a reference fingerprint data set that corresponds with the determined content-transmission delay. The method also includes transmitting to the content-presentation device, the selected reference fingerprint data set that corresponds with the determined content-transmission delay to facilitate the content-presentation device detecting a match between query fingerprint data representing content received by the content-presentation device and at least a portion of reference fingerprint data in the transmitted reference fingerprint data set.