Authenticating bronze sculptures to prevent forgery involves a combination of scientific analysis, historical research, and expert examination. One of the primary methods is metallurgical testing, which examines the alloy composition to determine if it matches the period and origin claimed. Patina analysis is another critical technique, as natural aging creates unique chemical layers that are difficult to replicate artificially.

Art historians and appraisers study the sculpture's style, craftsmanship, and provenance to verify its authenticity. Documentation, such as ownership records and exhibition history, can provide crucial evidence. Advanced technologies like X-ray fluorescence (XRF) and thermoluminescence testing are also employed to detect inconsistencies in materials or casting techniques.

Additionally, experts compare the work to known pieces by the artist, looking for signature techniques or tool marks. Forgery attempts often fail to perfectly mimic an artist's distinct handiwork. Auction houses and museums frequently collaborate with specialists to ensure thorough verification before acquisition or sale.

By combining these methods, the art world maintains rigorous standards to protect collectors and preserve cultural heritage from fraudulent reproductions.