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(URN) indicates a field that uses a refname structure to indicate value and metadata for that field. See also refname /wiki/spaces/collectionspace/pages/666274945.
(boolean) indicates a boolean type field.
Finding media records from a given collectionobject record
The relations service provides the mechanism to find related records of a given type. With a known collectionobject csid, the API call would be
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Additional links
Media service RESTful API
Common services RESTful API
Relations services RESTful API