The modern art market lives a paradox: the higher the price of a sculpture rises, the greater the temptation to copy it. A new generation of forgers reproduces pieces with millimeter precision. Against them, forensic laboratories deploy a technological arsenal. The 3D forensic pipeline becomes the definitive judge between the authentic work and the perfect copy.
Photogrammetry and micro-topography analysis: the DNA of the surface 🔬
The process begins with a structured light scan that captures every pore of the material. Point clouds are generated with a density exceeding 500,000 points per square centimeter. The software compares surface roughness, the direction of polishing marks, and internal micro-fractures using computed tomography. The artist's digital signature, their technical gestures, is recorded in an algorithm that calculates the probability of authenticity. The data is cross-referenced with historical catalogs and period X-rays.
The plaster that gives it away: when the 3D printer forgets patience 🕵️
The modern forger is in a hurry. They use fast-curing resin and do not wait the 30 days that bronze needs to cool. The scanner detects air bubbles distributed in a suspiciously regular pattern, almost as if an algorithm had placed them. And the last straw: the digital mold leaves layer marks of 0.1 mm. The original Brancusi had those layers, but they were made by hand, with a clumsiness that no modeling software can imitate. The machine is perfect, and for that very reason, it gives itself away.