Ensuring authenticity and reliability of 3D models of Cultural Heritage (CH) data is increasingly critical, especially considering the increasing adoption of Artificial Intelligence (AI) in generating content. This paper highlights the importance of metadata and paradata to ensure transparency, authorship, and scientific rigor and considers challenges in creating meta-paradata information and its visualization on the web alongside 3D content. The study explores integrating meta-paradata into WebGIS platforms through tests on document-based Historic-BIM (H-BIM) models from the Turin 1911 project, promoting best practices for accessible, georeferenced, and verifiable '3D scientific models' while preserving CH narratives in virtual 'scrollytelling' environments.