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For offices still using the WIPO DAS REST API V1, we have made minor updates to support the ST.92 transition. These changes introduce a new optional parameter that allows Offices of Second Filing (OSF) to also retrieve the original PDDP document as deposited by the Office of First Filing (OFF).

For the full technical details, please refer to the revised YAML specification: a.1.1.- YAML File for WIPO DAS API V1 (legacy) - DAS Wiki - WIPO Wiki

What's changing

When calling GET /retrievals to check the status of a retrieval request, OSFs can now pass an optional parameter:

originalDocumentIndicator = true

DAS Wiki > 3.3.- WIPO REST API V1 retrieval flow during the ST.92 transition period > image-2026-3-20_11-33-48.png

The response behaviour depends on this parameter and the type of document registered by the OFF.

When originalDocumentIndicator = true

OFF Document Type	Response Body	Response Header
Legacy PDF	Merged PDF URL	Original document URL (without cover page)
PDDP document	Merged PDF URL	Original PDDP document URL

When originalDocumentIndicator = false or not provided

OFF Document Type	Response Body	Response Header
Legacy PDF	Merged PDF URL	(none)
PDDP with core PDF only	Merged PDF URL	(none)
PDDP with additional files	Merged PDF URL	Original PDDP document URL

DAS Wiki > 3.3.- WIPO REST API V1 retrieval flow during the ST.92 transition period > image-2026-3-20_11-28-5.png

Summary

If you need access to the original deposited document, pass originalDocumentIndicator = true in your request.
If the parameter is omitted or set to false, you will still receive the original PDDP URL in the header only if the OFF registered a PDDP with additional files.
In all cases, the merged PDF URL is always returned in the response body.