nChain Identity
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  • nChain Identity user documentation
  • 📑INTRODUCTION
    • Introduction to nChain Identity
    • Why choose nChain Identity?
      • DiD differentiators
    • How does nChain Identity work?
      • Data flows
      • Use cases and applications
    • Standards and regulations
  • 📄nChain Identity Issuers
    • What is an issuer?
    • How to become an issuer?
    • Operating an issuer
    • What do issuers do?
    • Issuer API
      • Overview
      • Getting Started
      • Examples
        • Issue an email credential
        • Revoke a claimed email credential
      • API Documentation
        • Credential Offers
        • Agent
        • Claims
  • 📑NCHAIN IDENTITY VERIFIER
    • What is a Verifier?
    • Operating a verifier
    • How to become a verifier?
    • Verifier API
      • Overview
      • Getting Started
      • Examples
        • Verify an email credential
      • API Documentation
        • Verifiable Presentation
        • Verifying
        • Agent
        • SIOP
        • Templates
  • 📄NCHAIN IDENTITY WALLET
    • What is the wallet for?
    • How to receive a Verifiable Credential?
    • How to share a Verifiable Credential?
  • 📑Privacy and Security
    • Privacy and Security Measures: NChain Identity Services
    • Revocation and data deletion
  • 🗃️SELF-SOVEREIGN IDENTITY KNOWLEDGE
    • Self-Sovereign Identity
    • Actors
    • Decentralized vs Self-Sovereign Identity
    • Key Principles of Self-Sovereign Identity
    • Self-Sovereign Identity – Use Cases
    • Digital Trust
    • Some of the critical components of Self Sovereign Identity
      • Trust over IP
    • Some of the critical components of Decentralise ID
      • A Blockchain Tailored for Decentralized Identity
      • Decentralise Identifiers (DiD)
      • Verifiable Credentials
      • Verifiable Presentations
  • 📑GLOSSARY
    • Glossary
  • 📄FAQs / HELP
    • Help & FAQs
      • What is a digital identity?
      • What is nChain Identity, and how does it work?
      • How is blockchain used in nChain Identity?
      • Compatible Blockchains for nChain Identity.
      • How can my business sign up for nChain Identity?
      • How is nChain Identity different to other identity solutions in the market?
      • Can nChain Identity communicate with other identity solutions?
      • What is nChain Identity doing with my data, and does it act as a data processor or controller?
      • What measures does nChain Identity take to protect user data?
      • What support is available for nChain Identity?
      • Can nChain Identity be integrated into our existing systems?
      • How can I get started with nChain Identity?
      • What countries is nChain Identity available in?
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  1. SELF-SOVEREIGN IDENTITY KNOWLEDGE
  2. Some of the critical components of Decentralise ID

Verifiable Presentations

From the W3C's perspective, a "verifiable presentation" expresses data derived from one or more verifiable credentials, ensuring the verifiability of the data's authorship. Therefore, holders can extract specific information from their pool of verified credentials and compile it into context-specific presentations of personal data. These newly crafted composite proofs, or presentations, are then dispatched to verifiers, who assess their authenticity.

Essentially, verifiable presentations encompass three fundamental elements:

  • Presentation metadata

  • One or more verifiable credentials

  • Presentation proof

Based on the W3C's depiction of verifiable presentations, the illustration below illustrates the constituents and their interconnection. The presentation, denoted by the dark blue background, incorporates metadata (in purple) and references one or more verified credentials (with a light blue background). Similarly, the credential consists of metadata (in blue) alongside claims (in green). In this instance, the claim asserts that Bob, the credential's subject, holds a bank account with the specified number. The presentation and the credentials are accompanied by digital signatures as evidence of the data's validity.

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Last updated 1 year ago

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