MaDiTraCe: D3.3 Guidelines for Methodology implementation

This deliverable provides practical guidelines for implementing a Digital Product Passport (DPP) to ensure traceability, transparency, and certification of critical raw materials (CRM) throughout their lifecycle. It presents a step-by-step methodology for generating, managing, and maintaining DPPs, including technical components such as decentralized identifiers (DIDs), verifiable credentials, and QR code integration. The architecture proposed within this project will be detailed in Deliverable 3.6.The document also introduces a blockchain-based notarization module to guarantee the integrity and auditability of data using cryptographic hashing and Merkle trees.The guidelines are grounded in the architectural model defined in D3.2, and will be further expanded in upcoming deliverables such as D3.7, which will offer deployment feedback and refined recommendations on blockchain selection.