42056876189-offset-1268.mp4
This confirms the file is a compressed video container, the industry standard for web playback. Common Sources for This Naming Style
Modern smart cameras (like Nest or Ring) often save clips based on the exact time of motion detection. The "offset" would indicate how many seconds after the initial trigger the specific event occurred. 42056876189-offset-1268.mp4
In video processing, an "offset" usually refers to a specific point within a larger stream or a delay in synchronization. The number 1268 likely represents a timestamp in milliseconds or seconds where this specific clip was "cut" or where a certain event was detected. This confirms the file is a compressed video