The upcoming implementation of the Digital Product Passport (DPP) under the EU’s Ecodesign for Sustainable Products Regulation (ESPR) represents a transformative opportunity for enabling life cycle-based sustainability assessments across manufacturing value chains. In response to the growing need of transparent, verifiable, and scalable sustainability information, this contribution introduces an auditable Product-Process-Resource (PPR) framework that integrates the DPP with Digital Process Passport (DPssP), built on the Asset Administration Shell (AAS) standard. A key strength of the approach is its compatibility with data space ecosystems and its focus on data sovereignty, allowing sensitive manufacturing data to be securely processed and verified without revealing confidential information. The framework is validated through a case study in the injection moulding domain, in which a single inlay of an injection moulding tool undergoes band sawing and CNC milling. By capturing machine-level time series data and linking it to digital asset models the process level carbon footprints are calculated. Structured aggregation of energy and material data at the process level allows for dynamic Product Carbon Footprint (PCF) calculation and comprehensive traceability throughout the product’s life cycle. By using AAS submodels, the proposed framework captures detailed information on products, processes, and manufacturing resources, ensuring interoperability and scalability. The AAS Carbon Footprint Submodel, in particular, enables real-time auditing and sets the stage for future integration into automated sustainability assessments. The proposed approach addresses the need for auditability, transparency, and modularity in carbon accounting aligned with Life Cycle Assessment (LCA). It also helps bring the DPP to life as a practical tool for supporting circular economy and compliance within digitally connected manufacturing environments. It demonstrates how the DPP, extended with the DPssP and grounded in the AAS, can serve as a critical enabler for comprehensive and verifiable LCAs, supporting digital transparency and sustainable manufacturing across sectors.