Duplication and Density Disclosure - Version 1.0 The Duplication and Density Disclosure software is an invaluable marketing tool for those who depend upon article marketing and the creation of unique content. This software not only provides the ability to scan for duplicated content between two articles but it also enables you to determine the keyword density of any word or phrase you choose. At the click of a button you will be able to discern the amount of duplicate content and contained density of any piece of content.