- From: Dan Burnett <daniel.burnett@consensys.net>
- Date: Thu, 5 Dec 2019 12:20:55 -0500
- To: Orie Steele <orie@transmute.industries>
- Cc: "Michael Herman (Parallelspace)" <mwherman@parallelspace.net>, "W3C Credentials CG (Public List)" <public-credentials@w3.org>
- Message-ID: <CAJ-gw3FurJeGf3ToHmbsw76TRDxYPP6dJuxS0d2_DVwMwv2Fsw@mail.gmail.com>
On Wed, Dec 4, 2019 at 5:30 PM Orie Steele <orie@transmute.industries> wrote: > Thanks for the feedback! > > I based the structure on: > https://www.w3.org/TR/vc-data-model/#example-7-specifying-multiple-subjects-in-a-verifiable-credential > > I thought of a greeting card as a VC with the Issuer being the FROM and > the subject being the TO. > This is a fun example, but perhaps not best representative of the intended use for VCs. The VC model is that "an Issuer makes Claims about a Subject, and includes a Proof (signature) that they did so". So what are you trying to prove? :) As presented, the VC says that the From claims that the To has a greetingCard property with certain values. > > After your comments, I'm not sure what I have done is correct. > > I have updated the demo to correct some missing fields and tested on > jsonld playground. Is this more what people were expecting? > > OS > > { > "@context": [ > "https://www.w3.org/2018/credentials/v1", > "https://transmute-industries.github.io/vc-greeting-card/context/vc-greeting-card-v0.0.jsonld" > ], > "id": "https://example.com/credentials/1872", > "type": [ > "VerifiableCredential", > "GreetingCard" > ], > "issuer": "did:key:z6MkobeddxBBkCWdXZP7bAbTnjuJ9wmKPi8zzA1WwQtCCQRr", > "issuanceDate": "2019-12-04T22:20:39.285Z", > "credentialSubject": { > "id": "did:example:123", > "greetingCard": { > "type": "HolidayCard", > "image": "http://i.imgur.com/SxtVfyQ.jpg", > "message": "Happy Holidays!", > "from": "did:key:z6MkobeddxBBkCWdXZP7bAbTnjuJ9wmKPi8zzA1WwQtCCQRr", > "to": "did:example:123" > } > }, > "proof": { > "type": "Ed25519Signature2018", > "created": "2019-12-04T22:20:39Z", > "jws": "eyJhbGciOiJFZERTQSIsImI2NCI6ZmFsc2UsImNyaXQiOlsiYjY0Il19..TO7wGkMcM-Ey2h2I2GMRsOAQ8r9xPL7mDEkPefuYmUy32lYhRuS0AiNjcIpYYkWil8RvITmnpb2syqDgpPgsAg", > "proofPurpose": "assertionMethod" > } > } > > > ᐧ > > On Tue, Dec 3, 2019 at 3:05 PM Michael Herman (Parallelspace) < > mwherman@parallelspace.net> wrote: > >> Orie, I have a follow-up question regarding the value of the *id* >> attribute in the *credentialSubject* (line 14). >> >> >> >> In the current implementation, the value of the *credentialSubject*’s >> *id* attribute is the value of the *to* attribute, the subject/entity >> the greeting card is addressed to. >> >> >> >> Is this correct? …this is a credential about a specific *greeting card* >> – that is, the greeting card is the subject of this credential, n’est pas? >> >> >> >> >> >> I think the corrected version of this greeting card should look like this… >> >> >> >> >> >> *From:* Orie Steele <orie@transmute.industries> >> *Sent:* December 2, 2019 8:16 AM >> *To:* W3C Credentials CG (Public List) <public-credentials@w3.org> >> *Subject:* Verifiable Credential Greeting Cards >> >> >> >> I've been working on some supporting documentation regarding JSON-LD >> Contexts, extending them and hosting your own, as well as interop with >> did:key. >> >> If you are interested in creating custom credential formats for new use >> cases, this demo may be of use to you. >> >> https://transmute-industries.github.io/vc-greeting-card/ >> >> Here is a VC Greeting card for this list, happy holidays: >> https://transmute-industries.github.io/vc-greeting-card/?vcgc=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 >> >> OS >> >> >> >> -- >> >> *ORIE STEELE* >> >> Chief Technical Officer >> >> www.transmute.industries >> >> >> >> <https://www.transmute.industries> >> >> ᐧ >> > > > -- > *ORIE STEELE* > Chief Technical Officer > www.transmute.industries > > <https://www.transmute.industries> >
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Received on Thursday, 5 December 2019 17:21:17 UTC