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Verifiable Credentials (VCs)

What VCs Are​

Verifiable Credentials (VCs) are digital certificates that prove specific claims about an individual, organization, or device in a secure, privacy-preserving manner. VCs are cryptographically signed, making them tamper-evident and trustworthy.

Their key characteristics include:

  • Digital Proofs: VCs are cryptographically secure credentials that can be issued, held, and verified digitally.
  • Represent Credentials and Achievements: They serve as digital proofs of your credentials, skills, and accomplishments—like digital versions of IDs, diplomas, or certificates.
  • Link to DIDs: When combined with your DID, they prove that the credentials are about you.

Verifiable Credential Roles & Ecosystem​

  • Issuer: The entity (e.g., a university, employer, or government) that issues the credential.
  • Holder: The individual or organization that holds the credential and can present it when needed.
  • Verifier: The entity that verifies the authenticity of the credential.

How VCs Work​

  1. Issuance: A trusted issuer creates and signs a credential, such as a diploma or certificate.
  2. Storage: The holder stores the credential in their digital wallet.
  3. Presentation: The holder presents the credential to a verifier, such as an employer or institution.
  4. Verification: The verifier checks the credential’s authenticity by validating cryptographic proofs within the credential, ensuring it is genuine and unaltered.

Benefits of VCs​

  • Security: Cryptographic security ensures that credentials are authentic and tamper-proof.
  • Privacy-Preserving: Share only the necessary information, protecting your personal data.
  • Selective Disclosure: Holders can share only the necessary information, such as proving they are over 18 without revealing their full birthdate.
  • Trustworthy Verification With No "Phone Home": Others can verify your credentials without needing to contact the issuer directly.