{
  "type": "object",
  "required": [ "merkleRoot", "targetHash", "anchors" ],
  "properties": {
    "merkleRoot": {
      "type": "string",
      "minLength": 64,
      "maxLength": 64
    },
    "targetHash": {
      "type": "string",
      "minLength": 64,
      "maxLength": 64
    },
    "anchors": {
      "type": "array",
      "minLength": 1,
      "items": {
        "type": "string"
      }
    }
  }
}