NWR / REV — Work Registration Header

The NWR and REV records are the root of every CWR transaction.

Mapping

CWR EDI Field	JSON Path	Notes
Record type	`work.messages.type`	Lowercased: `"nwr"` or `"rev"`
`Title` / `WorkTitle`	`work.titles[]`	`{ value, type: "TT" }`
`ISWC`	`work.identifiers[]`	`{ source: "iswc", value }`
`SubmitterWorkNumber`	`work.identifiers[]`	`{ source: "submitterWorkNumber", value }`
`RevocationIndicator`	`work.messages.revocation.indicator`
`RevocationReason`	`work.messages.revocation.reason`
`AnomalousWorkIndicator`	`work.flags.anomalous`	`"Y"` → `true`
`AnomalousWorkReason`	`work.flags.anomalousReason`
`AIIndicator`	`work.flags.aiUsage`	Raw value preserved

For REV: all work fields must be re-submitted in full. Structure is identical to NWR.
For REV with RevocationIndicator = "Y": the work is being revoked.