Abstract:
A computer at a content management system receives a first digital content item from a content provider. The computer matches the first digital content item to each of a plurality of reference digital content items in a database. The system determines a plurality of match metrics from the matches. Each match metric is indicative of a similarity between the first digital content item and one of the plurality of reference digital content items. Responsive to one of the match metrics being greater than a threshold level, the system sets a content age of the first digital content item to equal a content age of a reference digital content item associated with the match metric. Responsive to none of the match metrics being greater than the threshold, the system sets the content age of the first digital content item to a time of receiving the first digital content item.