Optimism, which plans to help scale the Ethereum blockchain with a Layer 2 protocol, raises $25M Series A led by Andreessen Horowitz (Michael McSweeney/The Block)

Michael McSweeney / The Block:
Optimism, which plans to help scale the Ethereum blockchain with a Layer 2 protocol, raises $25M Series A led by Andreessen Horowitz  —  Optimism, a startup focused on the scalability of the Ethereum blockchain network, has raised a $25 million Series A funding round led by Andreessen Horowitz.