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UNTP (United Nations Transparency Protocol) is a framework developed by the United Nations to support traceability and transparency of supply chains, particularly regarding sustainability claims. The protocol aims to provide a common language for sustainability claims, a neutral trust model to verify these claims, and a decentralized architecture based on credentials, allowing product data to travel with the item, independent of specific platforms. In the context of the Digital Product Passport (DPP), UNTP defines standards for JSON-LD data structure, particularly for Emissions Performance, Material Provenance, Conformity Claims, and SecureLink. Verisav validates and generates UNTP DPP v1.1.0 compliant DPPs, ensuring interoperability and verifiability of sustainability information.