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Verifiable Claims and Digital Verification

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CCG Verifiable Credentials for Education Task Force Telecon

Minutes for 2020-06-15

James Chartrand is scribing.

Topic: Introduction & Reintroductions

Vincent Langard: Intros building blockchain VC solution for higher ed
Kim Hamilton Duffy: Reintroduction Dmitri Zagidulin
Dmitri Zagidulin: Intro involved in many specs, interested in credentials around education and other areas. interested in building bridges between communities

Topic: European Blockchain Services Infrastructure

Lluís Alfons Ariño: Intro of talk
Lluís Alfons Ariño: Intro daniel
Dominik Beron: Intro business analyst and expert on project
Alen Horvat: Working on project
Lluís Alfons Ariño: Background on EDCI
Lluís Alfons Ariño: Slide 7 use cases
Lluís Alfons Ariño: Slide 8
Lluís Alfons Ariño: Slide 9 - EBSI timeline
Lluís Alfons Ariño: Slide 10
Lluís Alfons Ariño: Slide 12 overview
Lluís Alfons Ariño: Slide 13 - underlying tech - VC, identity
Lluís Alfons Ariño: Slide 14
Speaker nickname?
Blaž Podgorelec: @James - Daniel_Du_Seuil
Daniel Du Seuil: Want more standardized interactions through VCs, VPs - slide 15
Daniel Du Seuil: Will need shared infrastructure, e.g., ledgers
Daniel Du Seuil: Working on version 2, working with market to ensure right focus
Erik's nickname?
Lluís Alfons Ariño: Erik Van Zuuren
Kim Hamilton Duffy: James -- he's not in irc now. Just call him Erik
Erik Van Zuuren: overview of legal requirements with electronic identities - slide 17
Erik Anderson: Description of ESSIF VC
Erik Anderson: Slide 18
Daniel Du Seuil: Overview of ESSIF vs eIDAS
Daniel Du Seuil: Slide 19
Daniel Du Seuil: Overview of cross border interactions
Daniel Du Seuil: The complete legal report on link ssi-eidas can be found at
Lluís Alfons Ariño: Slide 20
Daniel Du Seuil: Slide 20 - feature roadmap
Daniel Du Seuil: For ESSIF under eIDAS
Daniel Du Seuil: Slide 21
Daniel Du Seuil: We can provide more elaborate legal report
Daniel Du Seuil: We will be sharing in the next month
Lluís Alfons Ariño: Open for questions
Kim Hamilton Duffy: Question about slide 16
Kim Hamilton Duffy: Verifiable credential hashes - how do they work with right to erasure, permanence. is a hash sufficiently de-identified. what tradeoffs did you make. what determinations did you make re: GDPR
Daniel Du Seuil: Will share GDPR study. want to limit what can be traced back to individual. We don't put VC on ledger, just the hash, maybe with start and end date. doesn't show VC itself, just like a fingerprint
Erik Anderson: Ongoing discussions re GDPR
Erik Anderson: Looking at legal implications. might put pseudonyms for certain cases on ledger
Erik Anderson: GDPR is a concern. bottom line we do put things on ledger but minimize correlation
Nate Otto: Question about VC and DIDs on slide 17. what DID method is used and how id for individual is provisioned for individual
Erik Anderson: Not cast in stone yet. we will allow users to create their own DIDs, and own wallets, but will put minimal requirements for DIDs. DIDs need to be unique and you must be able to show control. Will be used for authentication and we have minimal standards
Erik Anderson: To meet legal requirements
Erik Anderson: Exact format of DIDs are being fine tuned.
Kim Hamilton Duffy: Anthony asked about VCs in XML to satisfy legal binding signatures. How can we help - can CCG express XML serialization to help you?
Kim Hamilton Duffy: Maybe jsonLD sigs would be acceptable. what do you think we can do to help you.
Erik Anderson: Yes, we can align work.
Kim Hamilton Duffy: With PESC XML transcripts we may have use cases that need XML VC support. we've had discussions on mailing list. starting to understand it is all doable. wondering about overall priorities
Erik Anderson: Would be great to collaborate. will have initial study available next week
Kim Hamilton Duffy: In slide 17, W3C peer did is mentioned. is that a work in progress? are peer kids something you looked into and how will you use?
Daniel Du Seuil: Peer dis are very interesting - less tracking, more secure, more privacy. following interactions. valuable concept to follow.
Kim Hamilton Duffy: @Blazp I will read it
Blaž Podgorelec: @Kimhd thank you!
Dominik Beron: Everything boils down to privacy. legal entities are less problematic than actual persons. peer dids aren
Dominik Beron: Aren't necessarily stable. We are looking at it.
Erik Anderson: Much easier to implement anywise DID but might have GDPR issues - don't want to allow correlations. if we correlate to a single number we will not get a good GDPR report.
Erik Anderson: We think we might have to go to peer dids
Erik Anderson: A single European number is dangerous. a verifiable id can be used with legal effect