Is there a sample of how to return binary data in the NativeDICOM XML format for WADO SR serialization?

[Victor Derks]

DICOM standard part PS 3.19 defines a XML infoset model that can be
used to represent an entire DICOM composite instance. This infoset
model is used to share DICOM objects between a host and plug-ins.

The DICOM standard PS 3.18 defines a web based service to access DICOM
instances (WADO). Section 7.3 documents that it is recommended for a
web server to be able to return text objects in the mime type text/
xml.
PS 3.18 doesn’t define however how to transform a DICOM instance into
xml. So it seems up to the implementation to define this. It seems
that several DICOM implementations have defined their own xml format
for this purpose.

I am investigating the possible to leverage the use of the (recent)
defined XML format of PS 3.19. It is however not clear to me how to
encode binary values (such as OB) in the NativeDICOM XML format. PS
3.19 states that BulkData elements may be used. BulkData require
however an UUID attribute as the intend is that the ‘client’ uses this
UUID in a second API call to retrieve the binaries values. I am
looking however for a way to encode all data of an SR into a single
WADO result.

What would be the way to encode binary values in a Value element?