The enterprise blockchain landscape is undergoing a significant transformation thanks to ZKsync and its new solution: Prividium.
This innovation extends ZKsync’s capabilities beyond mere public scaling and introduces private and permissioned chains anchored in Ethereum, ensuring unprecedented privacy, security and interoperability for businesses.
What is a Prividium?
A Prividium represents a private execution environment built with the ZKsync Stack. It is a permissioned chain that stores all company data on premises or in the cloud, maintains transactions and exists outside the public blockchain. However, each operation is anchored to Ethereum via zero-knowledge based validity proofs, ensuring public verifiability without exposing internal activities.
Prividium’s security is based on ZK-STARKs, a cryptographic technology known for its quantum resistance. This makes Prividium more resilient compared to pair-based systems, while still relying on Ethereum’s cryptographic signatures for user authentication.
Each Prividium works as an independent ZKsync chain, with its own sequencer, prover and status database. The security model focuses on evidence production and verification, rather than public availability of data, allowing institutions to manage high-throughput internal operations without revealing sensitive details to outside observers.
Access control and identity management
One of the most important aspects of Prividium is the permission layer. This system controls identity, access, and visibility of data through an RPC proxy that applies permissions at the contract and job level, defined through a permissions API and administration panel. Authentication supports both enterprise SSO (Okta, Azure) and Ethereum wallet login, integrating the blockchain with existing enterprise compliance frameworks.
Selective disclosure allows sharing specific data only when necessary, such as for audits or reporting, without making the entire ledger public. This allows organizations to comply with regulatory requirements while maintaining the confidentiality of business operations and customer data.
Interoperability and settlement: the power of the Ethereum connection
Although Prividium is private by default, they support interoperability with both Ethereum and other ZKsync chains. This interoperability is based on a shared framework of settlement and proof, allowing the exchange of assets and messages between chains with cryptographic guarantees, without relying on external bridges or relayers.
Prividium batches are completed on Ethereum via STARK proofs sent to the ZKsync Gateway, ensuring tamper-proof verification for each status update. This model allows institutions to maintain private operations while accessing liquidity, settlement, and distribution on Ethereum when needed, without tying up assets or relying on third parties.
The L1 Interop feature allows ZKsync chains to communicate directly with DeFi on Ethereum, maintaining independent governance and separate operating environments. In combination with Prividium, this architecture offers companies private systems and direct access to public markets.
Airbender and Atlas: the technical innovations that make Prividium possible
Airbender: the new standard for proof generation
Launched on June 24, 2025, Airbender is ZKsync’s next generation driving system. Based on an open-source RISC-V zkVM, Airbender is six times faster than competing solutions, requiring only one GPU to generate proofs. This dramatically reduces hardware requirements and costs (approximately $0.0001 per transfer), making proof production accessible even in controlled enterprise environments.
Benchmarks show that Airbender can generate a proof for an average Ethereum block in about 17 seconds on a single H100 GPU, and 35 seconds end-to-end with recursion. This performance reduces operational complexity and enables faster and more predictable settlements between private execution and verified finality on Ethereum.
Atlas: end-to-end settlement optimization
Introduced on October 7, 2025, Atlas represents a fundamental upgrade to ZKsync Stack. The goal is not only to increase throughput (over 15,000 TPS), but also to significantly reduce the latency between transaction recording and finality on Ethereum, aiming for a ZK finality of approximately one second.
Atlas deeply integrates Ethereum execution, proof, and verification, shortening settlement cycles and improving predictability of operations. This is especially relevant for Prividium, where privacy limits what can be observed from the outside and trust is based on the frequency and reliability of proofs completed on Ethereum.
Governance and value for the ZK token
ZKsync’s governance proposals aim to link the growth of cross-chain coordination and Prividium adoption to the utility and value of the ZK token. The proposed model includes two value streams: interoperability fees for the movement of assets and messages between chains, and enterprise licenses for institutional modules. Both flows would be managed by a board-controlled buy-and-allocate mechanism, with proceeds allocated to staking rewards, token burn, and ecosystem financing.
This structure encourages the adoption of Prividium and the use of the ZKsync network, linking the success of private and interoperable solutions to the increase in the value of the token.
Privacy and Compliance: A New Era for Regulation
Prividium’s approach reflects a shift in regulatory discussions: the question is no longer whether privacy is possible on public blockchains, but how to guarantee it without sacrificing accountability. Recent statements from the SEC emphasize the need for systems that can verify compliance through cryptographic proofs, without exposing the entire transaction history.
Prividium aligns perfectly with this vision, offering default privacy, granular consent, and selective disclosure, all anchored to Ethereum via ZK-proofs. This allows institutions to demonstrate compliance and transaction objectives without compromising operational confidentiality.
Conclusion: Prividium as a catalyst for institutional adoption
ZKsync Prividium represents a decisive step towards the adoption of private, permissioned and interoperable blockchains for enterprises. With Airbender and Atlas, ZKsync offers a scalable, efficient platform that meets privacy and regulatory requirements. Integration with Ethereum ensures public and verifiable settlement, while the governance and value model of the ZK token ensures sustainability and incentives for the ecosystem.
For institutions looking for private blockchain solutions but connected to public markets, Prividium offers the ideal combination of privacy, security and interoperability, paving the way for a new generation of enterprise applications on Ethereum.