Resolve the GTIN
Normalize the barcode into a clean 8 to 14 digit GTIN and resolve it against the product catalog so the system is anchored in one specific product record.
Method
Product identity first. Evidence strength kept visible.
The Tayyib method is public on purpose. It explains what the scanner is actually doing and why direct product evidence stays stronger than wider company context.
The public method for halal food verification
This first Tayyib surface is not pretending to solve every halal question. It is establishing a cleaner public grammar for identity, verification, and unknowns.
Separate claim types
Product-level claims remain stronger than company-level claims. Expired, suspended, and negative records remain visibly distinct from active certification.
Keep unknown honest
If the evidence is weak or missing, the result remains unresolved. The method avoids flattening weak signals into a false public verdict.