{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "urn:orbiplex:schema:contact-attestation-request:v1",
  "title": "ContactAttestationRequest v1",
  "description": "Acquisition-side request from a node to a contact attestation service asking it to challenge one email address or phone number and later issue a contact-control passport.",
  "type": "object",
  "additionalProperties": false,
  "x-dia-workflow": "project",
  "x-dia-status": "draft",
  "x-dia-basis": ["doc/project/40-proposals/061-contact-attestation-service.md"],
  "required": [
    "schema",
    "schema/v",
    "request/id",
    "contact/kind",
    "contact/value",
    "subject",
    "requested/capability-id",
    "requested/profile",
    "requested/purposes",
    "issued/at"
  ],
  "properties": {
    "schema": { "const": "contact-attestation-request.v1" },
    "schema/v": { "const": 1 },
    "request/id": {
      "type": "string",
      "pattern": "^contact-attestation-request:[a-z0-9][a-z0-9:-]*$"
    },
    "contact/kind": {
      "type": "string",
      "enum": ["email", "phone"]
    },
    "contact/value": {
      "type": "string",
      "minLength": 1,
      "description": "Raw delivery target. It is sent only to the selected attestation service."
    },
    "subject": { "$ref": "#/$defs/subject" },
    "requested/capability-id": {
      "type": "string",
      "enum": ["email-control", "phone-control"]
    },
    "requested/profile": {
      "type": "string",
      "enum": ["email-control@v1", "phone-control@v1"]
    },
    "requested/purposes": {
      "type": "array",
      "minItems": 1,
      "uniqueItems": true,
      "items": { "type": "string", "enum": ["contact", "messaging", "direct-delivery", "recovery"] }
    },
    "delivery/preference": {
      "type": "string",
      "enum": ["link-and-code", "code-only"],
      "default": "link-and-code"
    },
    "issued/at": { "type": "string", "format": "date-time" },
    "expires/at": { "type": "string", "format": "date-time" },
    "proof/signature": {
      "$ref": "#/$defs/signature"
    }
  },
  "$defs": {
    "subject": {
      "type": "object",
      "additionalProperties": true,
      "anyOf": [
        { "required": ["participant/id"] },
        { "required": ["nym/id"] },
        { "required": ["routing-subject/id"] }
      ],
      "properties": {
        "participant/id": { "type": "string", "pattern": "^participant:" },
        "nym/id": { "type": "string", "pattern": "^nym:" },
        "routing-subject/id": { "type": "string", "pattern": "^routing:" }
      }
    },
    "signature": {
      "type": "object",
      "additionalProperties": true,
      "required": ["alg", "value"],
      "properties": {
        "alg": { "const": "ed25519" },
        "signer": { "type": "string", "pattern": "^(participant|nym|routing):" },
        "value": { "type": "string", "minLength": 1 }
      }
    }
  }
}