Abstract: A system and method attest the veracity of audiovisual depictions by inferring motion of the device recording those depictions from the audiovisual data, and comparing this inferred motion with contemporaneously sampled sensor data from that device, such as accelerometer or GPS data. If the inferred motion sensibly corresponds to changes in the other sensor data, then the video is determined to be authentic. Otherwise, an anomalous condition is signaled, altering the viewer that the video may have been digitally altered.

Abstract: Embodiments of the present invention allow a collection of users (referred to herein as a “forum”) to communicate and exchange content items as part of an interactive communication system (referred to herein as the “Reel service”). Each user has a mobile device (e.g., a mobile phone) running an application (referred to herein as the “Reel application”). The Reel application running in each mobile device is in communication with a server infrastructure. The Reel application implements client-side functions of the Reel service while the server infrastructure implements server-side functions of the Reel service. Users of a reel can create and share content items while simultaneously being able to monitor content being captured by other users through a single user interface, even on a mobile device where screen real estate is limited.