A barcode number is a series of digits below the barcode that uniquely identifies a product, linking it to detailed information in a database.

Yes, Google Lens and some Google apps can scan 2D barcodes like QR codes using your smartphone’s camera, allowing you to quickly retrieve product information. 

To verify or check a barcode online, Use Smart Consumer app to verify 2D barcodes, or enter the barcode number on the application to validate the product information provided. You can also verify the authenticity of a barcode by entering the GTIN/EAN of the product on the GTIN validation portal of GS1 India. 

You can check if a product is original by verifying its barcode online, inspecting the packaging for authenticity, and purchasing from authorised sellers.

A 12-number barcode is typically a UPC (Universal Product Code), commonly used in retail to uniquely identify and track products.