Non-fungible token (NFT) marketplaces could be supported on the Cardano blockchain soon, according to Cardano founder Charles Hoskinson. According to Hoskinson, the project has approached a number of major marketplaces to join its network. NFTs are one-of-a-kind assets that are issued on a blockchain and contain metadata that ensures they can't be duplicated, stolen, or forged. Apps have been submitted to at least six marketplaces.