Is that similar to zerobin (http://sebsauvage.net/wiki/doku.php?id=php:zerobin http://sebsauvage.net/wiki/doku.php?id=php:zerobin) where server has no knowledge

Is that similar to zerobin (http://sebsauvage.net/wiki/doku.php?id=php:zerobin http://sebsauvage.net/wiki/doku.php?id=php:zerobin) where server has no knowledge of the content of a message?