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Hi all, Below is a question one of my colleagues posted to digital curation, but I'm also posting here (because the more info the merrier). Thanks! Rosy ------------------------ Hi, I am working for the Digital Preservation Network and our current specification requires that we use baggit bags. Our current spec for bag-info.txt reads in part: "DPN requires the presence of the following fields, although they may be empty. Please note that the values of "null" and/or "nil" should not be used. The colon (:) should still be present." From my reading of the baggit spec, section 2.2.2: "A metadata element MUST consist of a label, a colon, and a value, each separated by optional whitespace. " 2.2.2 is for the bag-info.txt, but it seems that this is the general rule. Question: Are values required for all? Which below is correct or both? Ex: Source-Organization: or Source-Organization: nil I appreciate any clarification, Thanks James Stanford Digital Repository