{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://xcim.org/schemas/0.2/receipt.schema.json",
  "title": "XCIM EVP-01 Experimental Receipt Payload 0.2",
  "description": "Explicit experimental wire family. Does not change receipt 0.1, enable EVP by default or establish external identity validation.",
  "type": "object", "additionalProperties": false,
  "required": ["xcim_version", "object_type", "issuance_profile", "receipt_id", "issuer", "issued_at", "not_before", "expires_at", "application", "recipient", "identity_evidence", "presentation", "issuer_independence", "permissions", "declared_sender_domains"],
  "properties": {
    "xcim_version": { "const": "0.2" },
    "object_type": { "const": "xcim_receipt" },
    "issuance_profile": { "const": "evp_hosted_consent" },
    "receipt_id": { "type": "string", "pattern": "^urn:xcim:receipt:[A-Za-z0-9._~-]+$" },
    "issuer": { "$ref": "https://xcim.org/schemas/0.2/identity-evidence.schema.json#/$defs/httpsUri" },
    "issued_at": { "$ref": "https://xcim.org/schemas/0.2/identity-evidence.schema.json#/$defs/utc" },
    "not_before": { "$ref": "https://xcim.org/schemas/0.2/identity-evidence.schema.json#/$defs/utc" },
    "expires_at": { "oneOf": [{ "$ref": "https://xcim.org/schemas/0.2/identity-evidence.schema.json#/$defs/utc" }, { "type": "null" }] },
    "application": {
      "type": "object", "additionalProperties": false,
      "required": ["app_id", "app_epoch", "app_key_id", "identity_profiles"],
      "properties": {
        "app_id": { "type": "string", "pattern": "^urn:xcim:app:[A-Za-z0-9._~-]+$" },
        "app_epoch": { "type": "integer", "minimum": 1, "maximum": 9007199254740991 },
        "app_key_id": { "type": "string", "minLength": 1, "maxLength": 200 },
        "identity_profiles": {
          "type": "array", "uniqueItems": true, "minItems": 1, "maxItems": 2,
          "items": { "enum": ["evp-01", "oidc-01"] },
          "contains": { "const": "evp-01" }
        }
      }
    },
    "recipient": {
      "type": "object", "additionalProperties": false,
      "required": ["pairwise_id", "identity_assurance"],
      "properties": {
        "pairwise_id": { "$ref": "https://xcim.org/schemas/0.2/identity-evidence.schema.json#/$defs/hash" },
        "identity_assurance": { "const": "evp_email_control_verified" }
      }
    },
    "identity_evidence": { "$ref": "https://xcim.org/schemas/0.2/identity-evidence.schema.json" },
    "presentation": { "$ref": "https://xcim.org/schemas/0.1/receipt.schema.json#/$defs/presentation" },
    "issuer_independence": { "enum": ["independent", "organizationally_separated", "vendor_controlled", "unknown"] },
    "permissions": {
      "type": "array", "minItems": 1, "maxItems": 64,
      "items": { "$ref": "https://xcim.org/schemas/0.1/receipt.schema.json#/$defs/permission" }
    },
    "declared_sender_domains": {
      "type": "array", "uniqueItems": true,
      "items": { "$ref": "https://xcim.org/schemas/0.1/receipt.schema.json#/$defs/domain" }
    }
  }
}