MARKET AUDIT v2.0 (2026)

Shadow Grading:
Auditing the Authenticators

A statistical study on 'Gradeflation' and consistency drift across major human-grading authorities over a 24-month horizon.

⚠️ Access Restricted

This full technical paper is currently being digitized. The interactive Gradeflation charts are being compiled for web display.

Executive Summary

Shadow Grading refers to our internal control process where we re-submit identical cards to major grading authorities (PSA, BGS, CGC) to measure consistency drift...

Study Scope

Sample Size: 2,400 Control Cards.
Duration: 24 Months (2024-2026).
Variance Detected: ±0.8 Grades on resubmission.