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VC-EDU �Interoperability PlugFest 2�CHAPI and VC-API Interoperability

Manu Sporny, CEO

Digital Bazaar, Inc.

https://digitalbazaar.com

Standards Lead for W3C Verifiable Credentials and Decentralized Identifiers�2022.11.14

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What are CHAPI and VC-API?

Open technologies for issuing, communicating, and verifying Verifiable Credentials. CHAPI and VC-API promote �personal privacy and open choice of digital wallets.

VC-API is the Verifiable Credentials API�Supports institutional Verifiable Credential lifecycle management including issuing, presenting, and verifying

https://chapi.io

CHAPI is the Credential Handler API�Supports exchanging Verifiable Credentials between issuers, learners, and verifiers (bring your own wallet)

https://w3c-ccg.github.io/credential-handler-api/

https://w3c-ccg.github.io/vc-api/

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CHAPI and VC-API promote:

Individual Privacy

Open choice of software

Evan (Education)

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Interoperability Overview

CHAPI and VC-API

17 different Issuers�14 PlugFest participants�3 from the broader VC-API community

8 different wallets�5 web wallets�3 native mobile apps

81

Combinations Demonstrated

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Interoperability Overview

CHAPI and VC-API

81

Combinations Demonstrated

1	PASS (1): Demonstrated with https://playground.chapi.io
42	PASS (2): Demonstrated with https://playground.chapi.io; DID Auth implemented over CHAPI
13	PASS (2a): ^, JFF 2 Credential issued by community partner does follow JSON schema
9	PASS (3): Demonstrated with https://playground.chapi.io; DID Auth implemented via VC-API/exchanges
7	PASS (4): Demonstrated with standalone issuer site
7	PASS (5): Demonstrated with standalone issuer site; DID Auth implemented over CHAPI
2	PASS (6): Demonstrated with standalone issuer site; DID Auth implemented via VC-API/exchanges

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65 of the demonstrations used the CHAPI Playground

Credentials are communicated to any digital wallet using CHAPI.

Provides a frontend website that links to multiple different issuer backends. Selected backend issues credentials for use in the playground using VC-API.

Tooling to support JFF PlugFest 2 interop and �general community experimentation with CHAPI

https://playground.chapi.io

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16 of the demonstrations used a Standalone Issuer Site

These issuers directly implemented CHAPI and/or VC-API

https://drv2j8qu2c4k.cloudfront.net/

https://plugfest.participate.com/#

https://vc.acreditta.com/

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A vibrant community is forming around the Verifiable Credentials technology and the CHAPI and VC-API tools.

We continue to discover new teams that have been working together ad-hoc to demonstrate interop.

Includes companies who have never worked with VCs or DIDs before - and they achieved multi-partner interop in 3-4 weeks!

Takeaways from a Successful PlugFest:

8

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How easy was it to interop using CHAPI and VC-API?�What are your takeaways from this demonstration?

"CHAPI and VC-API made it easy to demonstrate interop from both our Verifiable Credential issuer and our LearnCard digital wallet. We're thrilled with the number of different companies' products that have been demonstrated to work with LearnCard, and we're pleased with the direction these standards are heading to support open choice of wallets for consumers."

- Jacksón Smith, CTO

"I was truly impressed at how an event like the JFF Plugfest could bring so many technology companies together to build interoperability as a community. The CHAPI playground was at the center of it, and once we had everything working we were able to connect with multiple partners in minutes. We're now turning our attention to commercial partnerships to serve real learners with those partners. The industry took a giant leap forward this week. Our only complaint was the documentation - there was too much to read and hard to find the right materials.”

– Ian Davidson, Chief Growth Officer

9

Learning Economy Foundation

iDatafy�SmartResume

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Discussion,

Questions, and Answers?

Email: msporny@digitalbazaar.com

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about Digital Bazaar

building a Web we can trust

Privacy-preserving digital identity�Secure identity and data verification directly between individuals

15 years working on W3C Web standards�Co-inventors of JSON-LD, Verifiable Credentials, Decentralized Identifiers, and community leaders and authors/editors of multiple relevant standards-track documents

Adoption by government and industry�Driving adoption of W3C standards by US DHS, USCIS, NACS, and over 40 other supported customers

True interoperability, no vendor lock-in�Interchangeable components demonstrated real interoperability with >25 other solution providers