{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://smart-data-models.github.io/dataModel.VerifiableCredentials/Attestation/schema.json",
  "title": "EBSI Verifiable Attestation",
  "description": "Schema of an EBSI Verifiable Attestation",
  "$schemaVersion": "0.0.1",
  "modelTags": "EBSI, Verifiable Credentials",
  "derivedFrom": "https://ec.europa.eu/digital-building-blocks/code/projects/EBSI/repos/json-schema/browse/schemas/ebsi-attestation/2022-11/schema.json",
  "license": "https://joinup.ec.europa.eu/collection/eupl/eupl-text-eupl-12",
  "type": "object",
  "properties": {
    "id": {
      "description": "Property. Defines unique identifier of the Verifiable Attestation",
      "type": "string",
      "format": "uri"
    },
    "type": {
      "description": "Property. Defines the Verifiable Credential type",
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "issuer": {
      "description": "Property. Defines the issuer of the Verifiable Attestation",
      "type": "string",
      "format": "uri"
    },
    "issuanceDate": {
      "description": "Property. Defines the date and time, when the Verifiable Attestation becomes valid",
      "type": "string",
      "format": "date-time"
    },
    "issued": {
      "description": "Property. Defines when the Verifiable Attestation was issued",
      "type": "string",
      "format": "date-time"
    },
    "validFrom": {
      "description": "Property. Defines the date and time, when the Verifiable Attestation becomes valid",
      "type": "string",
      "format": "date-time"
    },
    "validUntil": {
      "description": "Property. Defines the date and time, when the Verifiable Attestation expires",
      "type": "string",
      "format": "date-time"
    },
    "expirationDate": {
      "description": "Property. Defines the date and time, when the Verifiable Attestation expires",
      "type": "string",
      "format": "date-time"
    },
    "credentialSubject": {
      "description": "Property. Defines information about the subject that is described by the Verifiable Attestation",
      "type": "object",
      "properties": {
        "id": {
          "description": "Property. Defines the DID of the subject that is described by the Verifiable Attestation",
          "type": "string",
          "format": "uri"
        }
      }
    },
    "credentialStatus": {
      "description": "Property. Contains information about how to verify the status of the Verifiable Attestation (via the Revocation and Endorsement Registry, RER)",
      "type": "object",
      "properties": {
        "id": {
          "description": "Property. References record in the Revocation and Endorsement Registry (RER) to enable verification of a Verifiable Attestation’s validity",
          "type": "string",
          "format": "uri"
        },
        "type": {
          "description": "Property. Defines the Verifiable Credential status type",
          "type": "string"
        },
        "statusPurpose": {
          "description": "Property. Purpose of the status entry",
          "type": "string",
          "enum": [
            "revocation",
            "suspension"
          ]
        },
        "statusListIndex": {
          "description": "Property. Integer expressed as a string. The zero based index value identifies the bit position of the status",
          "type": "string"
        },
        "statusListCredential": {
          "description": "Property. URL referencing the StatusList2021Credential",
          "type": "string",
          "format": "uri"
        }
      },
      "required": [
        "id",
        "type"
      ]
    },
    "credentialSchema": {
      "description": "Property. Contains information about the credential schema (template) on which the Verifiable Authorisation is based",
      "type": "object",
      "properties": {
        "id": {
          "description": "Property. References the credential schema (template) stored on the (relevant) Trusted Schemas Registry (TSR) on which the Verifiable Authorisation is based",
          "type": "string",
          "format": "uri"
        },
        "type": {
          "description": "Property. Defines credential schema type",
          "type": "string",
          "enum": [
            "FullJsonSchemaValidator2021"
          ]
        }
      },
      "required": [
        "id",
        "type"
      ]
    },
    "evidence": {
      "description": "Property. Contains information about the process which resulted in the issuance of the Verifiable Attestation",
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "id": {
            "description": "Property. If present, it MUST contain a URL that points to where more information about this instance of evidence can be found.",
            "type": "string"
          },
          "type": {
            "description": "Property. Defines the evidence type",
            "type": "array",
            "items": {
              "type": "string"
            }
          }
        },
        "required": [
          "id",
          "type"
        ]
      }
    },
    "proof": {
      "description": "Property. Contains information about the proof",
      "type": "object",
      "properties": {
        "type": {
          "description": "Property. Defines the proof type",
          "type": "string"
        },
        "proofPurpose": {
          "description": "Property. Defines the purpose of the proof",
          "type": "string"
        },
        "created": {
          "description": "Property. Defines the date and time, when the proof has been created",
          "type": "string",
          "format": "date-time"
        },
        "verificationMethod": {
          "description": "Property. Contains information about the verification method / proof mechanisms",
          "type": "string"
        },
        "jws": {
          "description": "Property. Defines the proof value in JWS format",
          "type": "string"
        }
      },
      "required": [
        "type",
        "proofPurpose",
        "created",
        "verificationMethod",
        "jws"
      ]
    }
  },
  "required": [
    "id",
    "type",
    "issuer",
    "issuanceDate",
    "issued",
    "validFrom",
    "credentialSubject",
    "credentialSchema"
  ]
}