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Methodology
PointCheck combines proprietary contour matching with top-tier AI models from Anthropic to deliver probability-based authenticity assessments for lithic artifacts.
Background Isolation
Your uploaded photos are processed to isolate the artifact from its background, producing a clean silhouette for precise shape analysis.
Contour Matching
The artifact's silhouette is analyzed using proprietary contour matching to identify the most likely point type and narrow the field of candidates for the AI assessment.
AI Authenticity Assessment
Top-tier AI models from Anthropic examine your artifact photos alongside the matched type candidates, analyzing flake patterns, edge work, patina, and morphological features to produce a detailed authenticity assessment.
Our system is tested against a diversified, high-quality reference dataset featuring artifacts with verified provenance—including museum specimens, archaeological survey finds, and pieces authenticated by certified professionals—balanced against documented modern reproductions from skilled knappers and known replicas.
Verified pieces from museum collections, professional surveys, and certified authenticators.
Documented replicas from knapper demonstrations and known modern-made pieces.
Authenticity probabilities are mapped to human-readable verdict labels:
Shape, size, and distribution of removal scars
Retouch patterns, edge angles, and regularity
Shape, depth, and symmetry of hafting notches
Stone type, fracture patterns, and surface quality
Surface oxidation, desert varnish, and age indicators
Overall shape, proportions, and typological fit
Termination patterns indicating knapping technique
Grinding, thinning, and hafting modifications
Legal Notice: This AI-based authenticity assessment is provided by ArtifactVerify LLC for informational purposes only. It does not constitute a professional authentication opinion or guarantee of authenticity. The analysis is based on visible features in submitted photographs and may not detect all indicators of modern reproduction. Physical examination by a qualified expert remains the definitive method for artifact authentication.