Infrastructure

Startups

zkSync is a scaling and privacy engine for Ethereum. Its current functionality scope includes low gas transfers of ETH and ERC20 tokens in the Ethereum network. This document is a description of the JS library that can be used to interact with zkSync.

zkSync is built on ZK Rollup architecture. ZK Rollup is an L2 scaling solution in which all funds are held by a smart contract on the mainchain, while computation and storage are performed off-chain. For every Rollup block, a state transition zero-knowledge proof (SNARK) is generated and verified by the mainchain contract. This SNARK includes the proof of the validity of every single transaction in the Rollup block. Additionally, the public data update for every block is published over the mainchain network in the cheap calldata.

This architecture provides the following guarantees:

The Rollup validator(s) can never corrupt the state or steal funds (unlike Sidechains).
Users can always retrieve the funds from the Rollup even if validator(s) stop cooperating because the data is available (unlike Plasma).

Thanks to validity proofs, neither users nor a single other trusted party needs to be online to monitor Rollup blocks in order to prevent fraud.

In other words, ZK Rollup strictly inherits the security guarantees of the underlying L1.

Ethereum

Curve

Balancer

MoonPay

1inch Network

Matter Labs

MYKEY

Isha Sangani

Marco Cora

Alex Gluchowski

zkSync

Rhinestone

Swaps

Trading

Curve DAO Token

Custody

Organizations

1inch

Asset Management

ATMs

Flexa

AAVE

Aave [New]

Argent

Ripio

Investments

imToken Ventures

Loopring

Mining

Fabric

Tools

Services

Space and Time

Backers

CypherHunter Plus

zkSync

Funding Rounds

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