What is ZKsync (ZK)?

ZKsync (ZK) is a Layer 2 scaling solution for Ethereum, designed to enhance scalability, reduce transaction costs, and maintain high security using Zero-Knowledge (ZK) rollups. It enables faster and cheaper transactions while ensuring the same level of security as Ethereum's Layer 1 (L1) network.

ZKsync processes transactions off-chain while storing essential data off-chain as well. Transactions are bundled into batches before generating a validity proof, which is then submitted to Ethereum. This approach allows ZKsync to offer high throughput and low fees while preserving the security and decentralization of Ethereum.

Founded by Alex Gluchowski in 2018 through Matter Labs, ZKsync was envisioned as the first trustless Layer 2 scaling solution with L1 reorg-level security. The first mainnet version, ZKsync v1.0, launched on June 15, 2020, introducing a zero-knowledge prover based on the PLONK protocol. Since then, multiple upgrades have been implemented, including ZKsync 1.1 (August 1, 2020) with recursive ZK proofs unlocking up to 3,000 TPS, and ZKsync 2.0 (Era Upgrade) bringing full EVM compatibility, enhanced data availability, and native account abstraction for improved user experience.

Key Features of ZKsync

1. Security and Trustlessness: ZKsync ensures Ethereum-level security by using cryptographic validity proofs to confirm transactions without relying on third parties.

2. Scalability and Efficiency: The rollup technology significantly increases transaction throughput by processing data off-chain, reducing congestion and improving network efficiency.

3. EVM Compatibility: Developers can deploy Ethereum-compatible smart contracts without major modifications, allowing seamless integration with existing applications.

4. Cost Reduction: By minimizing on-chain storage and execution, ZKsync lowers gas fees for users and developers.

5. Native Account Abstraction: Built-in improvements over Ethereum’s EIP-4337 enable advanced wallet interactions, simplifying the user experience.

6. Interoperability: The modular ZK Stack framework allows developers to build customized, interoperable ZK-powered blockchains, ensuring a connected ecosystem.

ZK Token and Its Use Cases

The ZK token serves as the native utility and governance token within the ZKsync ecosystem. It is primarily used to pay for transaction fees on the ZKsync crypto network, offering users lower costs compared to the Ethereum mainnet. Additionally, ZK token holders can participate in protocol governance, voting on key proposals that influence the network's future direction.