Cardano has become the name of an open-source decentralized blockchain and cryptocurrency project that uses a dedicated currency called Adacoin (ADA) on its platform. Simply put, Cardano is a general term for projects, and the currency used in them is Adacoin. Cardano is operated by three organizations: Cardano Foundation, IOHK (Input Output Hong Kong), and Emurgo. Charles Hoskinson, who participated in the development of Cardano, is a virtual currency such as Ethereum Known as one of the genius mathematicians involved in the development, he is currently active as the aforementioned IOHK representative (CEO). The roles of the three organizations are as follows. The first is the Cardano Foundation, which mainly works for the purpose of standardizing, protecting, and developing the technology used in Cardano. The second, Emurgo, provides investment and other support to companies that do business using the Cardano blockchain. The third is IOHK, an engineering company that develops the technology used in the Cardano platform and has a contract through 2020. It should be noted that, in general, the token used on the platform, Adacoin (ADA), is known rather than the name of the project or platform, Cardano.