One NFT. One slab. Forever.
Cards get reprinted, graded, and stacked. Your NFT has no second copy. PNA seals the only slab that can ever exist for it.
Ready to check registry
Four signals. One sealed result.
The public page opens an existing slab. The scoring engine stays behind minting, so ungraded tokens cannot be used to guess outcomes.
01Transfer rateTransfers excluding mint, normalized by age.
02Current holdLong custody opens the top grade instead of punishing old activity forever.
03Recent churnFresh movement matters more than ancient movement.
04Market stateListings and OpenSea flags can cap the result.