what's CatchBack Cards?

CatchBack Cards is a mobile app and website platform designed to maximize the thrill of collecting Pokémon and sports trading cards. Users create custom mystery packs by selecting chase cards and setting personalized odds, then digitally open packs using cryptographically secure randomness via UUID generation and SHA-256 hashing for verifiable, fair results. Wins are backed by physical cards shipped directly or vaulted in secure, insured facilities, ensuring collectors can access their pulls instantly or hold for liquidity. The platform provides guaranteed perpetual buybacks on cards from packs or marketplace purchases, redeemable via CatchCoins or direct transfers to Venmo/PayPal, complemented by a $1 fee marketplace for buying, selling, and auctions. Leveraging Web3 technologies, it integrates Nexus Layer 1 blockchain for scalable on-chain execution and verifiable computation, accepts cryptocurrency payments like ETH and USDC across chains, and open-sources selection code for transparency, bridging physical collectibles with digital liquidity.