$ADA Cardano is a platform for maintaining the operations of the cryptocurrency Ada. The platform is multi-layered and gives the system the elasticity to maintain and easily update it with a soft fork. Cardano uses a Proof of Stake system, reducing the amount of electricity requirements and improving its scalability. The second feature of Cardano is its Recursive InterNetwork Architecture that allows the existence of a subnet within a main network, which also makes it easier for a network to grow. Cardano aims to become a Blockchain Internet, making it possible for all cryptocurrencies to coexist side by side and convert from one to another without intermediaries. Cardano will also allow users to attach metadata to their transactions if they wish, making the network more friendly for banks and governments.