The unique identifier of an <<def_object,object>>. The <<def_hash,hash>>
of the object's contents using the Secure Hash Algorithm
1 and usually represented by the 40 character hexadecimal encoding of
- the <<def_hash,hash>> of the object (possibly followed by
- a white space).
+ the <<def_hash,hash>> of the object.
[[def_object_type]]object type::
One of the identifiers