{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://raw.githubusercontent.com/api-evangelist/ecfr/main/json-schema/cfr-ancestor.json",
  "title": "CfrAncestor",
  "description": "An ancestor node in the CFR hierarchy as returned by GET /api/versioner/v1/ancestry/{date}/title-{title}.json.",
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "description": "The type of this hierarchy node.",
      "enum": ["title", "subtitle", "chapter", "subchapter", "part", "subpart", "subject_group", "section", "appendix"]
    },
    "label": {
      "type": "string",
      "description": "Full human-readable label for this node (e.g., 'Title 2 - Federal Financial Assistance')."
    },
    "label_level": {
      "type": "string",
      "description": "Short level label (e.g., 'Title 2', 'Part 200')."
    },
    "label_description": {
      "type": "string",
      "description": "Descriptive portion of the label (e.g., 'Federal Financial Assistance')."
    },
    "reserved": {
      "type": "boolean",
      "description": "Whether this node is reserved."
    },
    "identifier": {
      "type": "string",
      "description": "Identifier for this node within its type (e.g., '2', 'A', 'I', '200')."
    }
  },
  "required": ["type", "label", "identifier"]
}