pure silence exists only in digital space and it can have various bitrate.

cryptosilence - a groundbreaking conceptual project by dmitri kourliandski consisting of 4 sound files of 1 minute silence each with different bitrate (mp3 mono, mp3 stereo, wave mono, wave stereo). the work is a new step in the tradition of silent music. up to now the most famous silent work is 4'33'' by john cage. cage's project was a statement of an impossibility of silence. nowadays the digital space opens the way for the pure silence to exist. in kourliandski's cryptosilence it exists in various forms (bitrates).