JSON-LD Data Structure and Schema.org in Digital Product Passports

Public Digital Product Passport pages (/p/[gtin]) must be intelligible not only to human consumers, but also to search engine web crawlers and automated European Union customs validation systems. The foundation of this machine readability is JSON-LD (JavaScript Object Notation for Linked Data).

Example of Compliant JSON-LD for an ESPR Passport

{
  "@context": "https://schema.org/",
  "@type": "Product",
  "name": "EcoWeave Circular Trench Coat",
  "description": "ESPR Digital Product Passport for recycled trench coat.",
  "gtin14": "05908588842010",
  "offers": {
    "@type": "Offer",
    "price": "0.00",
    "priceCurrency": "EUR",
    "availability": "https://schema.org/InStock"
  }
}

Why Semantic Data Matters for ESPR Compliance

Implementing Schema.org alongside EU ESPR digital passport specifications allows search engines and supply chain aggregators to directly parse:

• Trade Identification: GTIN-14 mapped to the GS1 Digital Link resolver URI.
• Product Details: Localized product title, manufacturer identity, and variant attributes.
• Circularity & Ecodesign: Material composition transparency and hazardous chemical declarations.

Embedding a compliant zero-price informative offer (price: "0.00" with InStock availability) completely eliminates Google Search Console merchant schema warnings for regulatory passport pages.