Verification Standards
Institutional-grade security protocols engineered to protect collectors. Every card, sealed wax box, and game-worn artifact undergoes uncompromising multi-point authentication.
Guaranteed or full refund
Digital cert hashes validated
Over 8 years in circulation
Our custodial ledger tracks item journey coordinates from original consignors, team equipment managers, and certified estate vaults. Each physical handover requires dual-witness algorithmic sign-offs and dual-key cryptographic signatures before cards or game-worn items are released for listing or shipping.
Lifetime Authenticity Guarantee
Should any item purchased through CARDX fail verified authentication by an authorized third-party grader, we provide an immediate 100% reimbursement, including shipping and third-party inspection fees.