Produce Traceability Initiative (PTI) Best Practices

Produce Traceability Initiative (PTI) Best Practices

The Produce Traceability Initiative (PTI) is the implementation of standards necessary to trace produce. Over 65% of all produce in the United States conforms to PTI Phase I standards. Phase I includes the transfer of produce that does not change packaging, and Phase II includes the processessing and repackaging of produce. The Traceability Blockchain supports both PTI Phase I and PTI Phase II. PTI also requires the adoption of GS1 identification standards.

Getting Started

Getting Started

If your company is not a member of GS1 it is important you join to ensure the identifers your company use to identify products and shipments do not conflict with other products on the blockchain. Visit https://gs1.org to get started.

When you join GS1 you are assigned a "company prefix" that is used as the beginning part of all the identifiers you create. This makes it possible to identify your products from someone elses.

Important Identifiers

Important Identifiers

GS1 provides numbering standards use to identify most aspects of the supply chain. For the purposes of traceability on the blockchain, there are only a few critical identifiers. GS1 identifiers are used by functions in the blockchain to generate address and asset identifiers that compatibile with the blockchain.

Global Trade Identification Number (GTIN)

Global Trade Identification Number (GTIN)

Each product a company sells or produces is identified by its own GTIN. GTINs are represented on retail packaging by the UPC barcode and are represented on wholesale barcodes using the TIN or GS1-128 barcode. Different packaging of the same product will be identified by different GTINs. A seperate GTIN is also used to identify products in batch form that have not yet been packages. Every item in inventory is identified by its GTIN and a lot or batch number.

Lot Number

Lot Number

Each batch of a product produced must be identified by its own lot number. Although GS1 does not set a standards for the numbering system used by each company, GS1 standards require lot numbers be used and included in wholesale barcodes for traceability.

Global Shipment Identification Number (GSIN)

Global Shipment Identification Number (GSIN)

Each shipment is identified by a unique GSIN. This number may be interchanged with the transport PRO number.

Global Location Number (GLN)

Global Location Number (GLN)

Each physical location where a product is shipped or stored is represented by a unique location number. The traceability blockchain generates a blockchain physical address using a cryptographic function based on the physical location of the location on earth. If two businesses shares a physical location or warehouse, the GLN is also used to identify the location within the blockchain.

GS1 Global Traceability Standard

GS1 Global Traceability Standard

The GS1 Global Traceability Standard defines a minimum set of traceability requirements within business processes to achieve full chain traceability, independent of any technology. The traceability blockchain was designed with these requirements in mind. The GS1 Global Traceability Standard outlines a common framework to build a traceability system using other GS1 standards – such as barcodes, data carriers, eCom and EPCIS.

The GS1 standard with the traceability blockchain allows an end-to-end traceability system, linking the flow of information to physical products. In an event of a food outbreak, the sharing of traceability information between businesses in the supply chain is critical to ensure a targeted and effective recall. The GS1 Global Traceability Standard is the basis of the GS1 Global Traceability Compliance Criteria for Food, a document used to evaluate critical points within a traceability system.

Download the GS1 Global Traceability Standard for Food Service

Download the GS1 V2 Global Traceability Standard

GS1 Barcodes

GS1 Barcodes

If you have ever purchased any item at a store, you have seen a barcode created by GS1 standards. The UPC barcode is used in retail locations to indentify products in retail packaging. The GS1-128 barcode is the barcode used in wholesale transactions and contains additional information. At a minimum, the GS1-128 barcode for a product includes the GTIN and lot number of the product.