github.com/olivere/camlistore@v0.0.0-20140121221811-1b7ac2da0199/doc/schema/objects/permanode.txt (about)

     1  The idea of a permanode is that it's the anchor from which you build
     2  mutable objects.  To serve as a reliable (consistently nameable)
     3  object it must have no mutable state itself.
     4  
     5  {"camliVersion": 1,
     6   "camliType": "permanode",
     7  
     8   // Required.  Any random string, to force the sha1 of this
     9   // node to be unique.  Note that the date in the ASCII-armored
    10   // GPG JSON signature will already help it be unique, so this
    11   // doesn't need to be a great random.
    12   "random": "615e05c68c8411df81a2001b639d041f"
    13  
    14  <REQUIRED-JSON-SIGNATURE>}
    15