K21 is an ecosystem centered around a closed-end art vault containing 21 unique NFT artworks by influential contemporary artists. The collection, assembled by an anonymous team with extensive experience in the art world, pushes the boundaries of NFTs as a medium for artistic impact. The K21 ERC-20 token allows partial ownership of the art collection, and token holders can vote against a buyout of the vault. Kanon also introduces KSPEC, an open-source protocol for preserving and documenting digital art on-chain.