{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/SocialSecurityNumber",
  "title": "Social Security Number",
  "type": "string",
  "description": "A unique identifier assigned by the government. This field is considered sensitive information and may be subject to special security and privacy restrictions.",
  "example": "123456789",
  "nullable": true
}