title: UUIDs in CouchDB
body: <p>I am wondering about the format UUIDs are by default represented in CouchDB. While the RFC 4122 describes UUIDs like <code>550e8400-e29b-11d4-a716-446655440000</code>, CouchDB uses continuously chars like <code>3069197232055d39bc5bc39348a36417</code>. I've searched some time in both their wiki and their documentation what this actually is, however without any result.</p>
  
  <p>Do you know whether this is either a non RFC-conform format omitting all <code>-</code> or is this a completely different representation of the 128 bits. </p>
  
  <p>The background is that I'm using Java UUIDs which are formatted as noted in the RFC. I see the advantage that the CouchDB-style is probably more handy for building internal trees, but I want to be sure to use a consistent implementation.</p>