For verification purposes audio files represented here receive a Exchangeable Image File (EXIF) generated automatically at the time prophecy is given, this imbedded data can be forensically retrieved, for example, the time & date of recording; geographic coordinates latitude & longitude are sometimes stamped into EXIF files, along with many other technical bits (contingent upon the recording device used).
EXIF data is permanently imbedded & travels with the original recording.