Research & Publications

We publish what we find.

Independence is meaningless without scrutiny. Our methods, data, and conclusions are submitted to the same peer-reviewed journals we cite — and we openly publish our calibration sets.

Selected publications

Recent peer-reviewed work.

  • 2025

    Lead-isotope provenance of Roman bronze statuary from the Western Mediterranean (1st c. BCE – 2nd c. CE)

    Vasari, A.; Lehmann, K.; Okafor, N.

    Journal of Cultural Heritage
  • 2024

    Hyperspectral identification of indigo–woad mixtures in late-medieval Flemish manuscripts

    Lehmann, K.; Castell, R.; Vasari, A.

    Heritage Science
  • 2024

    Quantitative FTIR mapping of natural resin varnishes degraded under accelerated UV ageing

    Okafor, N.; Renaud, S.

    Analytical Chemistry
  • 2023

    Non-invasive XRF survey of a 17th-century Dutch cabinet collection: a methodological proposal

    Vasari, A.; Renaud, S.

    Archaeometry
Ongoing programmes

Current research lines.

ZL-RP-12

Isotopic mapping of post-Byzantine icon panels

Three-year programme with the Benaki Museum and the University of Athens.

ZL-RP-18

Machine learning for cross-section interpretation

Training a CNN on 40,000 annotated stratigraphies to assist — never replace — the conservator.

ZL-RP-22

Open-source XRF calibration for archaeological glass

Releasing our 2,000-sample reference dataset under CC-BY in 2026.