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It is expected that sourceRecordObject will be a JSON representation of a MARC file. The MARC file will be saved at mod-source-record-storage and an Instance object with source=LINKED_DATA is saved at mod-inventory-storage.
source=LINKED_DATA implies that the source of truth is at the Linked Data Service. In the additionalProperties object, a key-value pair will represent the identifier of the bibframe linked data resource. The key will be linkedDataId and the value with be a Long(Java)/bigint(PostgreSQL).
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