Easily accessible characterization techniques such as X-ray fluorescence (XRF), Fourier Transform Infrared Spectroscopy (FTIR), or Raman spectroscopy, are at this moment the most commonly used analytical tools in heritage and conservation science. Materials identification in works of art is a fundamental step for understanding an object's history or an artist's technique. Comprehensive characterization and diagnosis of the various constituent materials in artworks can provide valuable information on the artist's working methods, as well as significant evidence for dating, provenance attribution, or forgery detection. The development of databases with high-quality data on the pure substances used as artists’ materials is of utmost importance for the identification and characterization of unknown samples. However, there are relatively few open access spectra libraries dedicated exclusively to the cultural heritage field. To address this need, within the frame of the postdoctoral project INFRA-ART, an open access spectral library of art-related materials has been developed. The database is an ongoing compilation of spectra that contains at this moment over 1,000 high-quality attenuated total reflection–FTIR, Raman, and XRF spectra associated with over 500 known reference materials. In this article, a summary of the database structure and design, functionality, and use is presented, in view of the dissemination of this new open access spectral library to the scientific community.

Complex demands in the field of cultural heritage preservation often require a multidisciplinary approach and substantial volumes of multimodal data integration and management. The conventional approach to tackling these issues revolves around using different H-BIM (historical building information model) solutions. This paper presents a prototype for a web platform that moves closer to the idea of a digital twin for physical cultural assets. Based on a light development framework, it is designed for online open access and features a versatile custom 3D viewer for intuitive interaction with the presented data. The concept requires a workflow similar to the video-game industry’s 3D asset optimization to generate highly detailed 3D models and to facilitate the display of multilayered imaging data. The technological stack features a minimal MVC architecture framework and front-end stylesheets. It is designed to be independent of specific databases, enhancing portability for potential future open-source releases. Moreover, the platform employs WebGL libraries to create a dynamic 3D environment interaction. The capabilities of the web platform were tested in a case study regarding the documentation of an important 17th-century church in Romania. Further developments and current limitations of the platform are also discussed.

Romania’s wooden churches, numbering over 1400, represent a unique and valuable cultural heritage. However, their preservation faces challenges due to degradation and insufficient documentation regarding their condition and significance. This paper presents innovative approaches to documenting these monuments using two representative online platforms. The “Biserici Înlemnite” platform focuses on inventorying wooden churches through a systematic methodology, while the 3D-VIMM platform provides a multimodal imaging and 3D data visualization solution aimed at creating digital twins for heritage assets. Advanced technologies, such as 3D digitization and Historical Building Information Modeling (H-BIM), enhance accessibility and precision in conservation planning. While H-BIM traditionally requires complex workflows, the 3D-VIMM platform simplifies the process by integrating diverse imaging techniques—visible, thermal, multispectral—and metadata within an intuitive interface. This enables interdisciplinary collaboration among historians, architects, conservators, and engineers. A case study from Arad County illustrates a possible path to the integration of these platforms, highlighting their potential to optimize data collection, prioritize interventions, and support long-term preservation strategies. The article underscores the importance of transdisciplinary methodologies in addressing the critical state of Romania’s wooden churches and provides insights into scalable solutions for heritage documentation and conservation.

The topic of this paper is a Roman cavalry sports helmet, or more specifically two halves of the same item, made out of copper alloy. It is part of a category of highly decorated military equipment, designed for parade or, more precisely, used in equestrian games/processions by cavalrymen of the Roman army. It was discovered in the area of the Islaz Roman fortifications, on the Olt River Roman frontier, the so-called limes Alutanus. The discovery in itself is spectacular. Both parts of the helmet were discovered almost in the same place, in two separate occasions, both accidental, by private citizens, in a time span of four months. The two fragments that form a whole helmet are well preserved and they present a strong point for the Roman presence at Islaz. The item in itself is a rare and beautiful find, this helmet in particular being the second of its kind (type) known to be found in the world. The helmet is from the Vechten Type, or pseudo-Phrygian type, named after its only analogy, the helmet from Vechten (Netherlands).

The stable isotope, radiocarbon dating, and ancient DNA analyses increasingly applied in paleontological research require destructive sampling of bone tissue, potentially compromising the morphological integrity of irreplaceable fossil specimens. Pre-sampling 3D documentation is therefore essential to preserve the full scientific potential of such material. Here we report the photogrammetric documentation of 63 MIS 3 cave bear (Ursus spelaeus, sensu lato) hemimandibles from four key cave sites in the Romanian Carpathians - Urșilor, Oase, Bisericuța, and Muierilor - representing the largest photogrammetric dataset of MIS 3 cave bear mandibles to date. High-resolution 3D models were generated prior to destructive sampling. Two independent investigators measured the length and width of the lower p4, m1, m2, and m3 teeth on both physical specimens and 3D digital models, yielding 18–48 paired measurements per tooth. These measurements were performed to validate the osteometric (bone/tooth measurement) reliability of the photogrammetry-derived models. Bland-Altman analysis revealed predominantly negative bias values across measurement pairs (range: -0.11 to -2.09 mm), indicating a tendency for photogrammetry to underestimate relative to caliper measurements, without strong systematic overestimation. Pearson correlation coefficients ranged from weak to very strong (r = 0.338–0.944), with the strongest agreement for m1 length (r = 0.944; p < 0.001) and m3 measurements (r = 0.817–0.879; p < 0.001), and the weakest for p4 width (r = 0.338; p = 0.157). These results demonstrate that photogrammetric reliability is measurement-dependent rather than uniform across all mandible features, performing most reliably for larger teeth with accessible occlusal surfaces. Beyond osteometry, the resulting 3D models are directly applicable to geometric morphometric analyses and online dissemination, providing a permanent morphological record of specimens prior to destructive sampling.

The paper presents the discovery of a fragmentary iron helmet (23 fragments), during the 1990 archaeological campaign at Capidava (Constanța County). The helmet was found inside the horreum, in a room (an enclosed complex) that ended its functioning during the N2 of Phase IV, in the 580s AD. The intra muros granary (horreum frumentarium) is a three-aisled building preceded by a portico, close to the Main Gate and Gate Tower no 7. The helmet is a Spangenhelm of the Dair-el-Medineh type, made entirely out of iron. All 23 fragments belonged to the bowl of the helmet, with none from an eventual aventail, cheek pieces, or nose guard. As a first restoration method, before the physical one, we chose virtual restoration (anastylosis) of the existing fragments and virtual reconstruction of the helmet.