ZKsync ZK Interop: Connecting sovereign chains with Ethereum liquidity

Source: Criptonoticias Original Title: ZKsync connects its ecosystem with Ethereum DeFi Original Link:

Overview

ZK Interop, an add-on to the Atlas technical suite, promises to solve liquidity fragmentation. The update includes Prividiums, a system aimed at institutional privacy.

The team behind the Ethereum layer-2 network (L2) ZKsync introduced ZK Interop, a complementary update to Atlas, the technical suite previously launched by that same L2.

Key Features

ZK Interop enables native interoperability between “ZK Chains,” the sovereign chains of the ZKsync ecosystem, and decentralized finance applications (DeFi) on the Ethereum mainnet.

This new release promises that protocols like Aave can be used from one of these ZK Chains without relying on bridges, without fragmented accounts, and without long wait times.

Problem Solved by ZK Interop

The interoperability announced with ZK Interop aims to resolve liquidity fragmentation on Ethereum, a phenomenon where funds are distributed across multiple networks that do not communicate directly.

Until now, each L2 and each private chain operated as islands. Users had to switch networks, move funds, or open separate accounts to use DeFi protocols.

With ZK Interop, interactions no longer require complex bridges. Users operate from the same wallet on their ZK Chain, while transactions are executed on Ethereum under a unified permissions and digital identity scheme.

How ZK Interop Works

Operation is described through a concrete example: a user on a ZK Chain makes a deposit in Aave (a platform that allows lending and borrowing of cryptocurrencies) and then requests a loan with the GHO token, Aave’s stablecoin.

The entire process is completed without the user ever leaving their account on the secondary chain.

This flow is enabled by a mechanism composed of three steps:

Step 1: Fast Withdrawals

Alias accounts are cryptographically controlled representations that allow actions to be executed on the main layer without the user generating a new identity.

These alias accounts remain controlled by the user’s key on the ZK Chain, so there is no need to create an additional identity on Ethereum.

Step 2: Transaction Package Preparation

This package groups the instructions needed to deposit funds in Aave and then take out the loan in GHO on Ethereum.

Step 3: Token Return

The user decides whether to move the GHO back to their ZK Chain. Using a bridge is no longer a requirement to complete the operation, but rather a later option.

Institutional Impact: Privacy with Access to Public Markets

The new Atlas update also integrates Prividiums, a toolkit that allows companies or financial entities to operate in private systems without disconnecting from Ethereum’s open market.

Prividiums functions as an isolated environment that protects sensitive data, like a private space where sensitive information is not exposed to the public network. This is relevant for companies subject to regulatory requirements.

However, thanks to ZK Interop, these institutions gain direct access to liquidity and to available capital on Ethereum.

The central idea is that companies no longer have to choose between private systems and public liquidity.

With this architecture, they can integrate treasury operations, risk models, financing, and advanced trading strategies within a private framework and, at the same time, execute DeFi transactions without moving critical data.

General Vision

ZKsync describes this landscape as the end of fragmented liquidity. Their vision is to position Ethereum as the capital center for all ZK Chains, regardless of the level of privacy, corporate use, or scale each one requires.