Trustworthiness of a video data stream

A method for decoding an audio data stream, having an audio signal encoded thereinto, wherein the method comprises

• decoding a syntax structure from the audio data stream, which comprises information for checking the audio data stream for trustworthiness based on a predetermined portion of the audio data stream, the predetermined portion being to be subjected to a hash function, or being to be used to derive data to be subjected to a hash function, for deriving a hash value to serve for checking the trustworthiness of the audio data stream,
• decoding a unique identifier, or a reference which points to a unique identifier, from the audio data stream, the unique identifier uniquely identifying a media asset comprising a plurality of media components to which the predetermined portion belongs;
• decoding an indication of a digital signature from the audio data stream, the digital signature being based on a combination of the predetermined portion, or the hash value, and the unique identifier.

A non-transitory digital storage medium having stored thereon an audio data stream, wherein the audio data stream has an audio signal encoded thereinto, wherein the audio data stream comprises:

• a syntax structure, which comprises information, which when processed by one or more processors, checks the audio data stream for trustworthiness based on a predetermined portion of the audio data stream, the predetermined portion being subjected to a hash function, or being used to derive data to be subjected to a hash function, for deriving a hash value to serve for checking the trustworthiness of the audio data stream,
• a unique identifier, or a reference which points to a unique identifier, the unique identifier uniquely identifying a media asset comprising a plurality of media components to which the predetermined portion belongs;
• an indication of a digital signature from the audio data stream, the digital signature being based on a combination of the predetermined portion, or the hash value, and the unique identifier.