Add SD-JWT-VC to Ecosystem Compatibility section

[brentzundel]

per https://lists.w3.org/Archives/Member/w3c-archive/2025Apr/0606.html

§5.11 Ecosystem Compatibility should explicitly list SD-JWT and SD-JWT-VC
to paragraph 1 which lists digital credential formats that do not natively
use the VCDM. SD-JWT-VC even explicitly specifies it does not use the VCDM
v1.0, v1.1, or v2.0. As SD-JWT(-VC) is a popular VC format for eIDAS it
should be explicitly stated like the others.

[iherman]

The issue was discussed in a meeting on 2025-04-23

• no resolutions were taken

View the transcript

1.1. VCDM comments.

Brent Zundel: "§5.11 Ecosystem Compatibility should explicitly list SD-JWT and SD-JWT-VC to paragraph 1 which lists digital credential formats that do not natively use the VCDM. SD-JWT-VC even explicitly specifies it does not use the VCDM v1.0, v1.1, or v2.0. As SD-JWT(-VC) is a popular VC format for eIDAS it should be explicitly stated like the others.".

Brent Zundel: comment source.

Brent Zundel: For each of these comments, I will provide text and link to source of comment.

See github issue vc-data-model#1593.

Brent Zundel: comment on VCDM, text suggests say we list SD-JWT-VC to the ecosystem compatibility section. The suggested response will be that we plan to address comment in future version of specification.

Ivan Herman: Any response we make is better to send via email.

Brent Zundel: I will do that.

Kevin Dean: Is there something we can add to the response to provide reasoning? Out of scope for current scope of work?

Brent Zundel: This is an editorial change, we can address it under our current charter, seeing how ideally we shouldn't change text of REC, we can address this later.

Michael Jones: That's fine.

[iherman]

This was discussed during the vcwg meeting on 25 April 2025.

View the transcript

VCDM comments

<brent> w3c/vc-data-model#1593

<brent> "§5.11 Ecosystem Compatibility should explicitly list SD-JWT and SD-JWT-VC to paragraph 1 which lists digital credential formats that do not natively use the VCDM. SD-JWT-VC even explicitly specifies it does not use the VCDM v1.0, v1.1, or v2.0. As SD-JWT(-VC) is a popular VC format for eIDAS it should be explicitly stated like the others."

<brent> comment source

brent: For each of these comments, I will provide text and link to source of comment.

brent: comment on VCDM, text suggests say we list SD-JWT-VC to the ecosystem compatibility section. The suggested response will be that we plan to address comment in future version of specification.

ivan: Any response we make is better to send via email.

brent: I will do that.

KevinDean: Is there something we can add to the response to provide reasoning? Out of scope for current scope of work?

brent: This is an editorial change, we can address it under our current charter, seeing how ideally we shouldn't change text of REC, we can address this later.

selfissued: That's fine.

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[iherman]

This was discussed during the vcwg meeting on 13 August 2025.

View the transcript

w3c/vc-data-model#1593

Brent: Add SD-JWT-VC to Ecosystem Compatibility section

<JoeAndrieu> FYI, I just closed #1599

Brent: We had a conversation about this, believe it's a class 2 as it's a list of examples.

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[iherman]

This was discussed during the vcwg meeting on 11 February 2026.

View the transcript

w3c/vc-data-model#1593

Brent: Add SD-JWT-VC to Ecosystem Compatibility section - minor change. Just adding another line to the list in the spec. Anyone willing to be assigned to it? Find a link to JD-JWT-VC and adding a line to it.

Manu: Concerned that the word VC is use in the SD-JWT-VC spec incompatible about the way W3C uses Verifiable Credential. This has no relation to the W3C VC work. No mapping to VCs in general so would have to do this individually per data model

Brent: understanding this request w

<dlongley> perhaps we should add a line that says: "Despite the use of the term 'verifiable credentials' in the SD-JWT-VC specifications, these specifications explicitly state they are incompatible with W3C Verifiable Credentials"

Understanding of the request would go into the ecosystem 5.11 ecosystem compatibility section.

Manu: supports adding that text and clarifies it is not directly related to the W3C VCDM workgroup activity

Brent: may be worthwhile to point out that we don't know all the things the transformation section items will result in successful transformations.

Brent: anyone willing to be assigned to add this to the incompatibility section.

Manu: willing to give this a shot

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[msporny]

PR #1622 has been raised to address this issue. This issue will be closed once PR #1622 has been merged.