Authentication

Verified once. Provable forever.

A tokenized asset is only trustworthy if the physical one is real. Here's exactly how every card is authenticated, graded and cryptographically tied to its token before it's ever listed.

  1. Step 01

    Intake & inspection

    On arrival, each card is inspected under magnification for tampering, alteration and restoration by our authentication team.

  2. Step 02

    Independent grading

    Cards are graded by PSA — the industry standard — for centering, corners, edges and surface. Grade and population data are recorded.

  3. Step 03

    Digital fingerprint

    High-resolution scans capture a unique surface fingerprint, so the exact physical card can be re-verified on redemption.

  4. Step 04

    On-chain binding

    The grade, serial and fingerprint are hashed and permanently bound to the token at mint — provenance you can verify yourself.

Verify any card yourself

Every listing exposes its grade, PSA certification number and the on-chain hash of its authentication record. Cross-check them before you buy — trust, but verify.

Explore authenticated cards