...
- size
: M only (certainly) - mimeType (* hold off on this one)
- state (lower priority if it is not trivial)
- title
- identifier (DSID)
- lastModified
- created
For external and redirect references (F3 "type" value = E,R ):
...
- externally referenced content (URI) (Type E and R only)
Validate: datastream size
...