D4.2 Report on the MultiX validation through PoCs

This deliverable reports the initial integration and validation activities carried out in Work Package (WP4) for the MultiX Proofs of Concept (PoCs), building on the validation methodology and Open Lab design defined in deliverable D4.1. It provides an updated view of how the MultiX reference architecture is mapped to PoC-level experimentation, describes the current status of the MultiX Open Labs and testing facilities, and documents the first system and PoC-level validation results. The deliverable also identifies the software assets and repositories supporting the integration work and confirms the ethical procedures applied to the planned and ongoing experimentation.