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Re: Proposed VC Use Case: Consignment of Claims

From: Steven Rowat <steven_rowat@sunshine.net>
Date: Thu, 3 Mar 2016 10:05:39 -0800
To: public-credentials@w3.org
Message-ID: <56D87CF3.2030502@sunshine.net>
On 3/3/16 6:10 AM, Eric Korb wrote:
> A.6 Consignment of Claims
> A.6.1 Holder Consigns Their Claim to Another Trusted Entity

+1. The language of this Consignment of Claims in A.6.1 was a delight 
to read -- fully explained itself to me by the examples themselves, 
which were easy to follow.

IMO there are many important uses for this. Tim put in some others in 
his reply.

One that's not mentioned yet I think, and I think is important, is the 
legal one for end of life or incapacity (like your example, but more 
inclusive): Attorney for Health Care, Attorney for Financial Affairs 
-- named differently in different jurisdictions but meaning that 
person B acts as the legal agent for Person A when person A is 
incapacitated, in a whole realm of legal acts: decisions with doctors, 
decisions with banks. These uses should definitely be covered in a 
seamless way by VCs if possible, and Consignment seems a good way to 
do that.

Though...it seems possible that some combination of other scenarios 
already in the VC Use Cases contains this capability? Unfortunately 
some of them are so dense as to be impenetrable for me, so I can't 
tell if that's true or not. For instance,

"A.3.8 Verifiable Claims as Qualifiers" -- maybe this is related? I 
tried to understand it and gave up, admittedly quickly. The TL;DR 
response took over and I fled. ;-)


> -----------------
> Requirement
> -----------------
> Credential holder will want to consign a claim to a trusted entity so
> the trusted entity can act on the holder’s behalf for a specific use.
> --------------
> Motivation
> --------------
> There are times when a credential holder will want or need to consign
> a claim to trusted entity.  This will include retrieving the claims
> about holder and their relationship with the trusted entity.
> --------------
> Importance
> --------------
> Useful
> -------------
> Scenarios
> -------------
> John is incapacitated, so he asks Sally, his trusted caretaker, to
> purchase a drug prescription on his behalf at Downer’s Pharmacy.  John
> consigns his issued prescription credential to Sally, which can only
> be verified at Downer’s Pharmacy.  When Sally is asked for proof of
> identity at the point-of-sale, Sally provides the consigned credential
> and her own identification credential referenced in the consigned
> credential.  Downer’s pharmacy address credential is also referenced
> in the consigned credential to ensure that the can only be verified at
> that specific pharmacy.
> Mary is applying to Baker University to achieve a master's degree in
> Culinary Arts.  Mary must supply an official transcript representing
> her BA in Culinary Arts issued by The College of Inspired Cooking.
> The College issues a Degree credential to Mary that authorizes her
> one-time access to the College’s student information system to
> retrieve her official eTranscript.  Mary consigns the Degree
> credential to the Baker University HR system, which can act on behalf
> of Mary to retrieve the official transcript.
> ------------------------------------------------------------------------
> /"Trust only credentials that are TrueCred/™ /verified."/
> ------------------------------------------------------------------------
> *Eric R. Korb | Chief Executive Officer*
> <https://mail.google.com/>
Received on Thursday, 3 March 2016 18:06:07 UTC

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