{
  "$id": "http://raw.githubusercontent.com/oasis-open/cti-stix2-json-schemas/stix2.1/schemas/common/identifier.json",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "identifier",
  "description": "Represents identifiers across the CTI specifications. The format consists of the name of the top-level object being identified, followed by two dashes (--), followed by a UUIDv4.",
  "type": "string",
  "pattern": "^[a-z][a-z0-9-]+[a-z0-9]--[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-5][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}$"
}