GS1 Standards for Digital Product Passports
How GS1 Digital Link, GTINs, and EPCIS underpin compliant, interoperable Digital Product Passports.
GS1 Digital Link: The Foundation of DPP Data Architecture
GS1 Digital Link is the global standard that transforms product identifiers into web-addressable URIs, creating a bridge between physical products and their digital information. For Digital Product Passports, GS1 Digital Link provides the critical infrastructure that ensures every product's data is findable, accessible, interoperable, and reusable (FAIR principles).
The European Commission has explicitly referenced GS1 standards as the basis for DPP data carriers and identifiers. This means that brands adopting GS1 Digital Link today are building on the framework that regulators will require tomorrow.
- Converts GTINs and other identifiers into resolvable web URIs
- Enables a single QR code to serve multiple data needs simultaneously
- Endorsed by the European Commission for DPP implementation
- Supported by over 2 million companies in 116 countries worldwide
Note
SmartLinks is built natively on GS1 Digital Link standards, meaning every connected packaging experience automatically generates compliant, resolvable product URIs.
Understanding GTINs and Product Identification
The Global Trade Item Number (GTIN) is the cornerstone of GS1 product identification. Every product variant — different size, colour, or configuration — receives a unique GTIN that distinguishes it globally. For Digital Product Passports, the GTIN serves as the primary product-level identifier, while serial numbers or batch identifiers provide instance-level granularity.
The ESPR requires that each DPP is linked to a unique identifier at the appropriate level of granularity. For serialised products (such as electronics or batteries), this means a per-unit identifier. For batch-produced goods (such as cosmetics or textiles), batch-level identification may be sufficient in the initial phases.
- GTIN-13: standard 13-digit product identifier used in retail worldwide
- GTIN-14: used for traded units and outer cases in wholesale
- Serial numbers: provide individual unit traceability for high-value items
- Batch/lot numbers: group-level identification for batch-manufactured products
- SGTIN (Serialised GTIN): combines GTIN with serial number for unique instance IDs
Data Carriers: QR Codes, NFC, and GS1 Compliance
A data carrier is the physical mechanism that encodes the product's digital identity onto its packaging. The ESPR mandates that DPP information must be accessible via a data carrier affixed to the product. GS1 standards define how identifiers should be encoded within these carriers.
GS1 Digital Link QR codes are the most widely recommended carrier for DPP compliance. They encode a URI containing the product's GTIN (and optionally serial/batch numbers) in a format that resolves to the product's digital twin when scanned. NFC tags offer an alternative for premium products where durability or anti-counterfeiting properties are valued.
- GS1 DataMatrix: compact 2D barcode suited for small items and industrial marking
- GS1 Digital Link QR Code: consumer-scannable, resolves to a web URI
- NFC (Near Field Communication): tap-to-access, tamper-evident, ideal for luxury goods
- RFID: long-range read capability for logistics and warehousing
- Hybrid approaches: combining QR + NFC for maximum coverage
Tip
SmartLinks supports both QR code and NFC data carriers with automatic GS1 Digital Link URI generation — no manual encoding required.
Structured Data Requirements for DPP Compliance
The DPP is not simply a link to a webpage — it is a structured, machine-readable dataset that can be consumed by automated systems, regulatory databases, and consumer applications. GS1 standards provide the data vocabulary and interchange formats that make this possible.
Product data must conform to predefined schemas that specify required fields, data types, units of measurement, and acceptable values. This standardisation ensures that a DPP created by a manufacturer in Germany can be correctly interpreted by a recycling facility in France or a market surveillance authority in Spain.
- GS1 Web Vocabulary: standardised product attribute definitions
- EPCIS (Electronic Product Code Information Services): supply chain event data
- GS1 Global Data Model: harmonised attribute catalogue across industries
- JSON-LD and linked data: machine-readable, semantic data formats
- Multilingual support: product information in all required EU languages
Data Quality and Governance for Product Passports
A Digital Product Passport is only as valuable as the data it contains. Poor data quality — inaccurate material percentages, outdated supplier information, or incomplete environmental metrics — undermines the entire purpose of the DPP and could expose brands to regulatory penalties.
Establishing robust data governance frameworks is essential. This includes defining data ownership across your supply chain, implementing validation rules at point of entry, and establishing regular audit cycles to ensure accuracy.
- Define data ownership: clarify which team or supplier is responsible for each data field
- Validate at source: implement checks when data enters your systems
- Automate where possible: reduce manual entry errors with system integrations
- Audit regularly: schedule quarterly reviews of critical product data
- Version control: maintain change history for regulatory audit trails
Important
Inaccurate or misleading DPP data could constitute a breach of the ESPR, potentially resulting in product recalls, fines, or market access restrictions.
Interoperability: Connecting Systems Across the Value Chain
One of GS1's greatest strengths is enabling interoperability — the ability for different systems, operated by different organisations, to exchange and use product data seamlessly. For DPPs, this is crucial because product information originates from multiple sources: raw material suppliers, component manufacturers, assemblers, logistics providers, and retailers.
GS1 standards define common languages and protocols that allow these diverse systems to communicate. EPCIS, for example, provides a standardised way to capture and share supply chain events ("this product was manufactured at this facility on this date"), while GS1 Digital Link ensures every product can be referenced by a globally unique, resolvable identifier.
- APIs and data exchange: standardised interfaces for system-to-system data sharing
- EPCIS events: capture manufacturing, logistics, and distribution milestones
- Master data synchronisation: keep product attributes consistent across partners
- Resolver infrastructure: GS1-conformant URI resolution for product lookups
- Open standards: avoid vendor lock-in with standards-based architecture
Implementing GS1 Standards with SmartLinks
SmartLinks provides a turnkey connected packaging platform built on GS1 Digital Link standards. Brands can deploy DPP-ready connected packaging without deep technical expertise in GS1 infrastructure.
Our platform automatically generates GS1-compliant URIs for every product, encodes them into printable QR codes or programmable NFC tags, and hosts the structured product data that resolves when consumers or regulators scan the carrier. Data can be managed through our intuitive dashboard or ingested via API from existing product information management (PIM) systems.
- Automatic GS1 Digital Link URI generation from your GTINs
- Pre-formatted QR code artwork ready for packaging integration
- NFC tag programming with GS1-compliant NDEF records
- API integration with existing PIM, ERP, and PLM systems
- Structured data hosting with regulatory-grade persistence and availability
- Multi-audience resolution: different content for consumers, regulators, and recyclers
Tip
Already have GTINs? SmartLinks can generate your DPP-ready connected packaging in days. Our onboarding team handles GS1 Digital Link configuration so your team can focus on content.