{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://schemas.dharma-ai.io/demo-transport-request/v1",
  "type": "object",
  "additionalProperties": false,
  "required": ["schema", "bindingHash", "request", "correlationId", "createdAt", "lastAttemptAt", "attempts"],
  "properties": {
    "schema": { "const": "dharma.demo-transport-request/v1" },
    "bindingHash": { "type": "string", "pattern": "^sha256:[a-f0-9]{64}$" },
    "correlationId": { "type": "string", "format": "uuid" },
    "createdAt": { "type": "string", "format": "date-time" },
    "lastAttemptAt": { "type": ["string", "null"], "format": "date-time" },
    "attempts": { "type": "integer", "minimum": 0, "maximum": 3 },
    "request": {
      "type": "object", "additionalProperties": false,
      "required": ["installationId", "enrollmentOrigin", "transportOrigin", "requestNonce", "trustGeneration", "installedKeysetHash"],
      "properties": {
        "installationId": { "type": "string", "format": "uuid" },
        "enrollmentOrigin": { "type": "string", "format": "uri", "maxLength": 2048 },
        "transportOrigin": { "type": "string", "format": "uri", "maxLength": 2048 },
        "requestNonce": { "type": "string", "pattern": "^[A-Za-z0-9_-]{32}$" },
        "trustGeneration": { "type": "integer", "minimum": 1 },
        "installedKeysetHash": { "type": "string", "pattern": "^sha256:[a-f0-9]{64}$" }
      }
    }
  }
}