B63kxx7mnixc1cpxj4seisvkrufhzrru.mp4 Today

: This alphanumeric string is a unique identifier (hash) assigned by Google’s servers. It ensures that every file remains distinct within their massive database, even if multiple users upload a file named "video.mp4."

: If downloaded via Takeout, there is often a .JSON file with a matching name containing the original title and capture date. B63kXx7MNixC1CPxJ4SeIsvkruFHZrRU.MP4

: You downloaded the video directly from the Google Photos web interface. How to identify the content : This alphanumeric string is a unique identifier

: You exported your library, and Google renamed files to prevent naming conflicts during the bulk download. B63kXx7MNixC1CPxJ4SeIsvkruFHZrRU.MP4