Media attestment guidelines

Follow these intructions when creating a media attestment to protect your security


A media attestment is a video file in which you identify yourself and communicate a hash of your public key. These guidelines are designed to make it difficult or impossible for an attacker (especially an automated computer program) to modify or forge your video attestment:
  1. Record the video in a single take.
  2. Identify yourself by saying your name or pseudoname. If you are a high-profile individual, it is recommended (but not required) that you show some form of identification such as driver's license or passport.
  3. Read aloud the hash of your public key. It is recommended to vary the pitch and tone of your voice, and to speak the characters in groups so that the audio cannot be easily segmented and transposed (eg, say "sixty-two" instead of "six, two"). It is also recommended to have some background noise in the video.
  4. Communicate the hash visually using one of the following methods:
    • Hold up a hand-written card with the hash written on it.
    • Write the hash on a whiteboard (make sure that you are still visible while writing).
    • Stand behind a pane of glass and write the hash value on the glass (so that your face is still visible). In this case, the video may be flipped horizontally so that the key is not seen as a mirror image.

Example media attestment