cac:ExternalReference
- Namespace
- cacurn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2
- Child elements
- 
    Card Name Description 0..1 cbc:DocumentHash Document digest 
 Digest of the document.0..1 cbc:HashAlgorithmMethod Document digest method code 
 Code that indicates the algorithm used to calculate the hash.Fixed value: http://www.w3.org/2001/04/xmlenc#sha256