Uatag offers complete protection of the valuable items from counterfeiting using unique authentication tag based on a two-level security components: *** Physical - the uniqueness of the broken glass shard, that plays the role of product fingerprint. *** Digital -based on the blockchain ledger and data records. The authentic origin of the product is verified by comparing the unique crack pattern of the product identifier with its electronic representation obtained from the database on the screen of thecustomer's smartphone. -One-time use only – any attempt to remove it will cause physical damage, that will be visible to anyone. -Non-reproducible. -RFID technology integration. -Provides instant visual product authentication. -Does not require any special reading devices.