RE: Value of JSON-LD Data in W3C VCs >>> Knowledge Graphs with UN Web Semantics

Yes, there’s no doubt there is huge value represented by the use of JSON-LD (and RDF graphs) but is it necessary to have these as extensions/requirements in the basic Verifiable Credential data model specification? …why is it necessary to complicate a “data model” specification with JSON (and RDF) extensions?

Can JSON-LD (and RDF) be moved to a separate W3C “application” Note? …or put into a VCDM layer of their own? …for example: https://github.com/w3c/vc-data-model/issues/982#issuecomment-1405138086


Michael Herman
Web 7.0

From: John, Anil <anil.john@hq.dhs.gov>
Sent: Thursday, January 26, 2023 8:54 AM
To: W3C Credentials CG (Public List) <public-credentials@w3.org>
Subject: Value of JSON-LD Data in W3C VCs >>> Knowledge Graphs with UN Web Semantics

Leading the UN Web Vocabulary project, I presented at the December 2022 UN/CEFACT Forum. The UN Forum sessions are not recorded, so I thought I would just capture the main points in this article.

The essential part of my presentation was a live demo, building a supply chain knowledge graph from the bottom up. In doing so, I gradually introduced the full tech stack in play:
·        The essentials of APIs, JSON and JSON Schema
·        Adding semantics with JSON Linked Data
·        Building Knowledge Graphs from LD files
·        The important role of standardized Web Vocabularies

https://medium.com/transmute-techtalk/knowledge-graphs-with-un-web-semantics-fa052ed98cc1<https://urldefense.us/v3/__https:/medium.com/transmute-techtalk/knowledge-graphs-with-un-web-semantics-fa052ed98cc1__;!!BClRuOV5cvtbuNI!X9QaYaoPJFeKPabaaN5iLkGWKfxKn6br4U7EMWRdGBm--VeHejBn-BfwuPbtswsfgswt$>

This is AWESOME!

And demonstrates what can be done when we actually have access to JSON-LD data!

Well done, Nis and the broader Transmute Team, on making such a compelling and understandable (by normal humans) case for the value of JSON-LD representation when using W3C Verifiable Credentials!

Best Regards,

Anil

Anil John
Technical Director, Silicon Valley Innovation Program
Science and Technology Directorate
US Department of Homeland Security
Washington, DC, USA

Email Response Time – 24 Hours

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