Mina Protocol (MINA) is a lightweight blockchain that aims to solve the scalability issue faced by many other cryptocurrencies. MINA uses zk-SNARKS technology to keep the entire blockchain small in size, making it accessible to all users to run nodes without needing significant resources. This allows for fast and efficient transactions while maintaining decentralization. MINA also aims to be a platform for decentralized applications (dApps) and smart contracts.