{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "Bill",
  "description": "A legislative bill: a proposed change to law, with its version chain, action timeline, sponsors, and votes. The legislative-process corpus (OpenStates/OCD source), parallel to the LegalText statute corpus.",
  "type": "object",
  "required": [
    "type",
    "title",
    "jurisdiction",
    "legislature",
    "session",
    "identifier",
    "citation",
    "status",
    "source",
    "source_identifier",
    "retrieved_at",
    "confidence",
    "tags"
  ],
  "properties": {
    "type": { "type": "string", "enum": ["Bill"] },
    "title": { "type": "string" },
    "description": { "type": "string" },
    "jurisdiction": { "type": "string" },
    "legislature": { "type": "string" },
    "session": { "type": "string" },
    "identifier": { "type": "string" },
    "citation": { "type": "string" },
    "classification": { "type": "array" },
    "subjects": { "type": "array" },
    "status": { "type": "string", "enum": ["enacted", "passed", "failed", "vetoed", "pending", "withdrawn"] },
    "chapter_law": { "type": "string" },
    "primary_sponsors": { "type": "array" },
    "version_count": { "type": "integer" },
    "action_count": { "type": "integer" },
    "vote_count": { "type": "integer" },
    "first_action": { "type": "string" },
    "last_action": { "type": "string" },
    "source": { "type": "string", "enum": ["official", "openstates"] },
    "source_identifier": { "type": "string" },
    "source_url": { "type": "string" },
    "source_hash": { "type": "string" },
    "vintage": { "type": "string" },
    "source_snapshot": { "type": "string" },
    "retrieved_at": { "type": "string" },
    "confidence": { "type": "string", "enum": ["official", "reported", "inferred", "unverified"] },
    "tags": { "type": "array" }
  }
}