Deadstock is an onchain marketplace and liquidity layer for physical collectibles, created by ATH Labs. The platform focuses on high-quality graded trading cards, including PSA 10 Pokémon cards, which are securely stored and represented by 1:1 onchain tokens. Users can open packs, instantly buy and sell collectibles, manage their collections, and redeem tokens for the underlying physical cards. Built on Arbitrum, Deadstock combines verified physical inventory, tokenization, marketplace trading, and redemption infrastructure to make traditionally illiquid collectibles easier to own and trade.