RE: Vaccination Certificate Test Suite

I think we absolutely need to get this effort  “plugged in” with the credential standards and data model Drafting Groups in Good health Pass….

Best regards,
Jim St.Clair
Chief Trust Officer<> | 228-273-4893
Let’s meet to discuss patient identity exchange:

From: Orie Steele <>
Sent: Thursday, April 8, 2021 1:14 PM
To: Manu Sporny <>
Cc: W3C Credentials CG <>
Subject: Re: Vaccination Certificate Test Suite

CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe.

Thanks for sharing this work Manu!

Transmute is hugely supportive of it, and happy to help move the work forward.

In particular, we're very interested in interoperability testing of paper format credentials to address concerns regarding digital exclusion that will inevitably arise from any use of "HTTP" and or "DIDs".

We've already been doing some work on this front with Digital Bazaar and Mattr regarding QR Code representations of Verifiable Credentials:


We're particularly excited about the intersection of offline / paper credentials and selective disclosure proofing systems, like BBS+. Here is a small offline capable progressive web application demo we built:<>

We also have a demo video showing a smaller slice of these same interoperability tests:

We're pursuing commercial interest in this space, but we remain equally committed to supporting in the interest of public good regardless of a specific customer.



On Thu, Apr 8, 2021 at 12:31 PM Manu Sporny <<>> wrote:
Hi all,

As some of you know, a few of the members in the W3C Credentials Community
Group have been working on a Vaccination Certificate Vocabulary[1]. The World
Health Organization has recently published a Release Candidate data model
dictionary for Smart Vaccination Cards[2]. The CCG has also been working on a
Verifiable Credentials HTTP API[3].

The WHO guidance covers 28 types of vaccines that we (as a global society)
depend on, including Measles, Smallpox, Polio, Yellow Fever, COVID-19, and
others. We (Digital Bazaar) thought it might be interesting to see if we could
create an interoperability test suite for the WHO Smart Vaccination Card work
using the tools listed above.

Please note:

* This is all experimental; it's not meant to step on any
  toes (the 40+ other vaccination certificate projects).

* We have privacy concerns wrt. the WHO guidance and one
  way to address those is to put better options into the

* There is no guarantee that WHO will follow any
  particular path at this moment.

* Digital Bazaar is not operating on behalf of any of our
  customers, this is a self-funded internal "try to make
  the world a better place" project. It is apolitical.
  All mistakes and missteps are ours, not anyone else that
  could be construed as being a part of the work.

With that said, we've been able to achieve the following:

* A test suite containing 1,624 tests covering the
  28 vaccine types in the WHO vocabulary.

* 7 independent vendor implementations issuing and
  verifying each others WHO Smart Vaccination Cards.

* 1,623 passing tests demonstrating true

You can view the latest Vaccination Certificate test suite report here:

-- manu




Manu Sporny -

Founder/CEO - Digital Bazaar, Inc.
blog: Veres One Decentralized Identifier Blockchain Launches

Chief Technical Officer<>


Received on Thursday, 8 April 2021 18:29:20 UTC