Data & Valuation Methodology
Technical Disclosure & Pricing Architecture
DECK / divider maintains a comprehensive card and price database covering 218 catalogued expansion sets, 18,400+ individual cards, and historical price records. We prioritize empirical market accuracy over speculative estimates.
Methodology Highlights
- Daily TCGplayer Sync: Market price updates ingested continuously for raw Near Mint, Holofoil, and Reverse Holo print variations.
- Authentic Slab Multipliers: Grade value modeling calibrated across PSA 10, PSA 9, and Beckett BGS historical auction transactions.
- 2026 Regulation Mark Rules: Automated Standard rotation validator enforcing Regulation Marks H, I, and J (Mark G rotated) with legal reprint resolution.