{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "urn:nobei:contracts:l1-candidate:v1",
  "type": "object",
  "additionalProperties": false,
  "required": ["schemaVersion", "candidates"],
  "properties": {
    "schemaVersion": { "const": 1 },
    "candidates": {
      "type": "array",
      "maxItems": 20,
      "items": {
        "type": "object",
        "additionalProperties": false,
        "required": ["type", "title", "statement", "evidence"],
        "properties": {
          "type": { "enum": ["concept", "process", "comparison", "formula", "fact", "code"] },
          "title": { "type": "string", "minLength": 1, "maxLength": 120 },
          "statement": { "type": "string", "minLength": 1, "maxLength": 2000 },
          "evidence": {
            "type": "array",
            "minItems": 1,
            "maxItems": 3,
            "items": {
              "type": "object",
              "additionalProperties": false,
              "required": ["quote", "prefix", "suffix"],
              "properties": {
                "quote": { "type": "string", "minLength": 1, "maxLength": 2000 },
                "prefix": { "type": "string", "maxLength": 200 },
                "suffix": { "type": "string", "maxLength": 200 }
              }
            }
          }
        }
      }
    }
  }
}