zkSync has redefined itself from a single blockchain to a network of public and private chains built on Ethereum. This strategic shift, announced by Alex Gluchowski, aims to align zkSync with Ethereum's scaling and financial infrastructure objectives. The network leverages zero-knowledge cryptography to enhance security and reduce transaction costs, catering to both open blockchain users and private chain adopters. This move is part of broader efforts to support Ethereum's recent performance improvements, including increased transaction speeds, driven by Layer 2 solutions like zkSync.