Codex Protocol is a decentralized registry for unique assets backed by an industry consortium representing 5,000 auction houses. Codex is initially focused on the $2 trillion Art & Collectibles asset class (art, wine, jewelry, watches, collectible cars, etc.), where the need for a registry is greatest because no centralized title registry exists. For unique assets, provenance (the identity, chain of ownership, and other metadata about an item) is fundamental to value. Verifying this critical information is a constant challenge that creates costly friction in the ecosystem.