Six distinct technologies are applied to every single submission, regardless of tier. This is not a premium add-on. This is our standard.
61-megapixel macro photography of front, back, and all four edges under calibrated daylight-balanced lighting. Every image is hashed and written to the blockchain — the file cannot be swapped after grading.
Full-spectrum converted camera shoots the card under 365nm UV and 720nm infrared light. Restorations, alterations, ink differences and print anomalies completely invisible to the naked eye become immediately apparent.
Multiple light sources illuminate the card from different angles simultaneously, creating a surface normal map that reveals micro-scratches, handling marks, and texture variations invisible in standard flat photography.
All four corners and all four edges are captured at up to 800x magnification, showing individual card fibres and microscopic wear patterns. These images appear annotated on your certificate, showing exactly what affected your grade.
Computer vision analyses centering to sub-millimetre precision and produces a colour-coded defect heat map — red for significant flaws, amber for minor, green for clean. Your final grade is supported by objective data, not solely subjective opinion.
The sealed slab is captured on a motorised turntable — 72 frames, published as an interactive spin. Simultaneously, all grade data, image hashes, and video hashes are written permanently to the Polygon blockchain. Immutable from this moment forward.
Our slab is not clipped, not glued. It is ultrasonically welded — a manufacturing process that fuses the two acrylic halves at a molecular level. No clip fails. No adhesive degrades. The super-clear acrylic gives an unobstructed view of your card from every angle.