Scroll (SCR) is a zk-rollup solution for Ethereum scaling that aims to improve its performance and usability. Scroll is powered by zk-rollup technology, which allows the network to process more transactions without compromising security. Scroll aims to make Ethereum faster and cheaper to use, so that more people can participate in the ecosystem.

zk-rollup is a zero-knowledge rollup. This technology combines many transactions into a single proof, which is then broadcast to the Ethereum network. By doing this, Scroll can significantly reduce the amount of data that needs to be processed on Ethereum itself. This approach makes transactions faster and less expensive.