Official Signature and Figurative Mark
The official signature is affixed to documents, to denote them as being official documents from the public authority. The public authority can be identified by means of the official signature. The signature also ensures that the document can be verified.
The presentation of the official signature of electronic documents is done by a figurative mark.
The Austrian Federal Chancellery uses the following figurative mark.
More information is available in German: Amtssignatur-Bildmarke und Verifizierung