{
  "$schema": "https://json-structure.org/meta/core/v0/#",
  "$id": "https://raw.githubusercontent.com/api-evangelist/consumer-products/refs/heads/main/json-structure/product-identifier-structure.json",
  "name": "ProductIdentifier",
  "description": "A typed identifier assigned to a consumer product by a registry, manufacturer, or marketplace.",
  "type": "object",
  "properties": {
    "type": {
      "description": "Identifier scheme.",
      "example": "GTIN",
      "enum": ["GTIN", "UPC", "EAN", "ISBN", "GLN", "SSCC", "ASIN", "MPN", "SKU"],
      "type": "string"
    },
    "value": {
      "description": "The identifier value, formatted per its scheme.",
      "example": "00012345678905",
      "type": "string"
    },
    "issuingAuthority": {
      "description": "Issuing organization or namespace.",
      "example": "GS1 US",
      "type": "string"
    },
    "primary": {
      "description": "Whether this is the primary identifier for the product.",
      "example": true,
      "type": "boolean"
    }
  },
  "required": ["type", "value"]
}