Re: Authorized Issuer Lists


I would also flag the EBSI Issuer Trust Model -  3 key registry components: Trusted Accreditation Organization (TAO), Trusted Issuers (TI), Trusted Schemas.

All registries stored on the EBSI ledger


Tech doc:

there is some emphasis and activity on the  Edu space, particularly the Diploma Use Case.

An interesting early adopter of this EBSI Trust Mode is DEQAR, an example of TAO, that allows recognized EU Unis to easily confirm their accreditation status.

We have invited the EBSI team from the European Commission to present on it during our VC EDU call on Sept. 26th (11am EDT).   

More generally we think a comparison between the EU EBSI approach and the TOIP would be very interesting !  Maybe this could be rolled up and hosted by CCG ! 

Happy to facilitate intros and any further support. 


Simone Ravaioli
Director Global Ecosystem and Innovation
Digitary by Parchment

+39 348 8903631

> On 14 Aug 2022, at 17:35, Dmitri Zagidulin <> wrote:
> Hi Manu,
> We've definitely hit the need for this (for a registry of trusted issuers) in the VC-Edu space. In early Digital Credentials Consortium prototypes, we're using a very basic JSON object hosted in the cloud, while the various standards and protocols are developing.
> Looking forward to reading this paper!
> On Sun, Aug 14, 2022 at 11:19 AM Manu Sporny <> wrote:
>> Hi all,
>> The topic of "lists of authorized issuers for certain types of
>> credentials" has been floating around the VC community for a few years
>> now. We don't seem to have hit a point where implementers and
>> customers feel they absolutely need the feature, but there has been
>> enough curiosity around it to perhaps have some exploratory technical
>> discussions at some of the upcoming conferences.
>> The basic concept here is: Can a verifier lean on established trust it
>> has in some authority, such as an accreditation body, to get a list of
>> issuers for particular types of credentials? To focus on a use case in
>> education, how would the American Bar Association publish a list of
>> all law schools that it has accredited to issue law degree VCs?
>> The following paper calls for the exploration of the topic, starting
>> at the upcoming RWoT in The Hague (end of September):
>> Thoughts, concerns, and identification of similar work, are all welcome.
>> -- manu
>> -- 
>> Manu Sporny -
>> Founder/CEO - Digital Bazaar, Inc.
>> News: Digital Bazaar Announces New Case Studies (2021)

Received on Sunday, 14 August 2022 21:29:29 UTC