913aca9a_ent_repository___Henri_Bergius__CouchDB
[feature] standard metadata [JCR / Jackrabbit] All nodes have access rights, jcr:primaryType and jcr:mixinTypes properties. JCR 2.0 standardizes a set of optional metadata properties. [Midgard] All objects have a set of standard metadata including creator, revisor, timestamps etc [CouchDB] 
No standard properties
What is a content repository - Henri Bergius
CouchDB