Systems and methods for capturing user consumption of information

A client device configured to assist in identifying user consumption of information, the client device comprising:

• one or more hardware processors;
• a screen configured to display screen images thereon;
• a storage device;
• memory storing computer instructions, the computer instructions when executed by the one or more hardware processors configured to perform:
• automatically capturing a series of screen image snapshots being presented on the screen;
• reducing a resolution of each screen image snapshot in the series of screen image snapshots to a reduced resolution;
• automatically capturing metadata associated with each screen image snapshot in the series of screen image snapshots, the metadata at least including a timestamp;
• identifying one or more duplicates in the series of screen image snapshots;
• discarding the one or more duplicates from the series of screen image snapshots to form a reduced series;
• modifying the metadata to identify the one or more duplicates discarded as having been discarded;
• storing the reduced series of reduced-resolution screen image snapshots and the modified metadata in the storage device;
• and
• after detecting a trigger condition, uploading the reduced series of reduced-resolution screen image snapshots and the revised metadata over a computer network to a processing server configured to evaluate the reduced series of reduced-resolution screen image snapshots and the modified metadata to determine whether a user may have consumed a particular content item.