Technology is disclosed herein for source-based authentication for a license of a license data structure. In at least one implementation, program instructions stored on one or more computer readable storage media, when executed by a processing system, direct the processing system to at least, responsive to a launch of an application, obtain a license file for the application, the license file comprising a user license. The processing system is further directed to determine authentication of the user license based on a source of the license file and, if the user license is authenticated, enable features of the application based on the user license and initiate presentation of the application in accordance with the enabled features.