Cairo is a STARK-based Turing-complete language for writing provable programs on blockchain. Cairo enables developers to use proof technology.
The innovation behind zk-STARKs is in operating as a Layer2 network over the Ethereum blockchain, which is usually called Mainnet.
SpaceShard Cairo team is very dedicated to educating others about Cairo and Starknet. Check out our projects or feel free to reach out to us on Twitter.