TAO -> TI

As a Trusted Accreditation Organisation (TAO), it is possible to accredit Trusted Issuers (TIs) to issue Verifiable Attestations.

The Verifiable Accreditation should include:

FieldDescriptionExample

Issuer

DID of the TAO

did:cheqd:testnet:e66a9416-d03e-4ced-95e3-07af16e25bc5

Subject

DID of the Trusted Issuer that is being accredited

did:cheqd:testnet:f6e731f0-5bfb-429b-b2c7-e65a951d7b5e

Credential Subject

A set of structured permissions around what credentials the Trusted Issuer is accredited to issue, and in which jurisdiction.

See below

Terms of use

A set of policies setting out the scope of Trust Chain for Relying parties to validate against.

See below

Permissions

Root TAOs can set permissions under which TAOs must abide. This creates a level of codified governance for the trust ecosystem.

"credentialSubject": {
    "id": "did:cheqd:testnet:e66a9416-d03e-4ced-95e3-07af16e25bc5",
    "accreditedFor": [
      {
        "schemaId": "did:cheqd:testnet:8ea036da-f340-480d-8952-f5561ea1763c/resources/b10146d7-0d0f-41e0-8ee3-c76db64890be",
        "types": [
          "VerifiableCredential",
          "VerifiableAttestation",
          "DiplomaCredential"
        ],
        "limitJurisdiction": "https://publications.europa.eu/resource/authority/atu/FIN"
      }
    ]
  },

Whereby:

FieldDescription

schemaId

Schema of the Verifiable Accreditation that the SubTAO is accredited to issue themselves

types

Types of Credential that the SubTAO is accredited to issue

limitJurisdiction

Permission that the TAO can set to limit the jurisdictional scope of the credentials issued in the ecosystem

Policies

The Root TAO can also set polices known as the AccreditationPolicy within the termsOfUse section of the Verifiable Accreditation.

"termsOfUse": {
    "type": "AccreditationPolicy",
    "parentAccreditation": "did:cheqd:testnet:8ea036da-f340-480d-8952-f5561ea1763c/resources/18de60ec-bed1-42e5-980c-601c432bc60b",
    "rootAuthorisation": "did:cheqd:testnet:8ea036da-f340-480d-8952-f5561ea1763c/resources/18de60ec-bed1-42e5-980c-601c432bc60b",
    "trustFramework": "Name of the Governance Framework (GF)",
    "trustFrameworkId": "https://example.com/governance-framework/124"
  }

Whereby:

FieldDescription

type

Must be AccreditationPolicy

parentAccreditation

The DID URL of the Accreditation issued by another TAO or the Root TAO to the TAO

rootAuthoroisation

The DID URL of the Root of Trust Verifiable Authorsation

trustFramework

Name of Governance Framework set by the Governance Authority

trustFrameworkId

URL linking to where the written Governance Framework is stored

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