AUTHENTICATION & GRADING STANDARD OPERATING PROCEDURE (SOP)
Certified 4-Stage Verification Protocol
Stage 1: Stereomicroscopy & Casing Audit
High-magnification inspection of the acrylic ultrasonic weld seam. Verifies that the holder has never been opened, re-sealed, or subjected to thermal distortion.
Stage 2: 365nm Dual-UV Luminescence
Exposure to dual 365nm ultraviolet frequency to authenticate official PSA / BGS holographic micro-threads, anti-tamper watermark fibers, and card surface ink.
Stage 3: Archival Packaging & Dispatch
Slabs are wrapped in acid-free archival sleeves, encased in shockproof bubble pouches, sealed with tamper-evident tape, and dispatched via InPost Paczkomaty or DPD Express.