Introducing Prividium Connect
Prividium Connect lets banks, asset managers and market infrastructures exchange assets across the blockchains they already run without a trusted intermediary. Zero-knowledge proofs enforce the agreed terms before a transaction completes, so either both transfers complete or neither does, while each institution keeps its confidential records within its own systems and decides what to disclose to auditors and regulators.
Today we introduce Prividium Connect, enabling institutions to transact privately across the blockchains each party already runs, without relying on a trusted intermediary.
Prividium Connect is the first solution to reach mainnet with cryptographic enforcement of private transactions across blockchains. For asset exchanges, it protects each party from sending an asset and receiving nothing in return: either both transfers complete, or neither does and both parties can recover their assets.
For the $ZK economy, Prividium Connect opens an opportunity across global financial markets, from institutional payments to securities and collateral.
1. Transacting across private blockchains requires more than connectivity
Despite the abundance of interoperability solutions, institutional systems remain fragmented. These products connect blockchains, yet leave participants with risks and dependencies that stand in the way of doing business together.
Blockchain bridges and intermediaries expose assets to failures outside the institution’s control.
Assets can be stolen when a bridge or custodian’s transaction-signing systems are compromised, or left tied up when a notary fails to act. Across the digital-asset sector, 107 security incidents caused $1.18 billion in losses in Q3 2026 alone. The following month, attackers stole approximately $6.3 billion from Binance after gaining access to the service that signed transfers from its hot wallets.
Existing bridgeless solutions shift trust from the bridge operator to the counterparty.
Some use zero-knowledge proofs to confirm what another blockchain recorded, but that does not guarantee that the counterparty fulfilled its obligations. Without a proof of correct execution, institutions would need to re-verify the transaction against records the counterparty must keep confidential.
Institutions need those obligations enforced without exposing their books, with the outcome made final on a settlement layer both parties accept.
2. Prividium Connect enables private transactions without a trusted intermediary
Prividium Connect enables institutions to transact across their existing blockchains with the agreed terms enforced, confidential records protected and an outcome both parties can rely on. They do not need an intermediary to guarantee the transaction, and no third-party bridge holds assets.
Both parties are held to their commitments.
In an asset exchange, neither party can receive payment without delivering what it owes. For collateral, Prividium Connect keeps the assets locked under the agreed terms while they remain on the pledging institution’s systems. Before an operation can complete, Prividium Connect requires cryptographic proof that the transaction conditions have been met. That protection holds even if an operator’s signing systems are compromised. Participants choose the settlement layer: the blockchain on which the proven transaction becomes final for both sides. In an exchange, neither party can unilaterally reverse either completed transfer.
Confidentiality is preserved throughout the transaction.
Zero-knowledge proofs establish that the rules were followed without revealing the underlying data. Counterparties receive the information required for their transaction, while other balances, positions and client records remain private.
An incomplete exchange does not trap assets.
If an exchange misses its deadline, neither party can prevent the other from recovering its assets, including by going offline or withholding approval.
Prividium Connect extends the protection against one-sided delivery to:
- Securities delivery against payment: a tokenized security changes hands only when its cash payment does.
- Repo: cash and collateral change hands together under the agreed terms.
- Fund subscriptions and redemptions: tokenized cash and fund shares are exchanged together.
3. Institutions retain their existing systems and control of their data
Existing blockchains stay in place.
We are starting with Hyperledger Besu and Prividium Ledger and will expand support to the networks our customers need to transact with. Each institution operates a connector alongside its ledger and can reuse the transaction protocol as it adds counterparties, instead of designing a separate mechanism for every relationship.
Institutions control their confidential records.
Balances, positions, client identities and other private information stay within each institution’s systems, with further disclosure to auditors, regulators and other recipients subject to its authorization.
Powered by ZKsync’s open-source atomic interop protocol.
Institutions can inspect and independently audit both the protocol and connector code, with the freedom to deploy it themselves or choose their own provider.
Prividium Commander simplifies integration.
Our software for institutional privacy and control works natively with Prividium Connect, and the two products can be used together or independently.
4. The role of the $ZK ecosystem
For the $ZK economy, Prividium Connect opens an opportunity to expand from Ethereum L2s to global institutional finance.
We propose canonical deployments of Prividium Connect on public chains that give institutions the benefit of ZKsync’s security and governance while directing interop fees into the $ZK economy.
The fee switch is already built and is being audited. The proposed integration with the Fee Flow System, whose contracts are already deployed on ZKsync Era, will enable collected fees to be converted into $ZK and allocated according to governance decisions.
We expect institutions to favor the proposed canonical public deployments because they offer a verified and maintained implementation backed by ZKsync’s security safeguards, including oversight by the ZKsync Security Council, while ZKsync governance makes the shared infrastructure credible neutral ground that neither counterparty controls.
Activation, integration and fee parameters of the canonical deployments will require governance approval.
5. Put your digital assets to work
Prividium Connect lets you transact with institutional counterparties, whether you are exchanging currencies, delivering securities or pledging collateral. Cryptography enforces the agreed terms while each party retains its existing systems and control of confidential records.
Talk to Matter Labs about the transactions you want to support with your counterparties. We will work with your team to assess your requirements and how Prividium Connect would fit your operations.
FAQ
Who is Prividium Connect for?
Prividium Connect is for banks, asset managers, custodians and financial market infrastructures that need to exchange assets or commit collateral with counterparties on other blockchains. The starting point is a specific transaction, such as exchanging currencies, delivering a security against payment, pledging collateral or subscribing to a fund, with identified counterparties and operating requirements.
Which transactions can we use Prividium Connect for?
You can exchange currencies, deliver securities against payment, exchange cash and collateral in repo transactions, or process fund subscriptions and redemptions using tokenized cash and fund shares. For collateral commitments, the assets can stay on your systems: Prividium Connect enforces the agreed lock so your counterparty can rely on it.
How does Prividium Connect compare with other interoperability solutions?
Prividium Connect enforces the agreed terms of private transactions across blockchains through cryptography, without relying on a trusted intermediary. Existing interoperability solutions connect systems and authenticate messages or chain state, but that alone does not enforce a counterparty’s obligations. Without proof of correct execution, institutions would need to re-verify the transaction against records the counterparty must keep confidential. Prividium Connect requires zero-knowledge proofs that the terms have been met before an operation can complete, without exposing those records. The transaction is bridgeless: the participants’ chosen settlement layer makes the proven outcome final for both sides, without a third-party bridge holding assets or vouching for the result.
Who can see our transaction data?
Only the parties to a transaction and their authorized recipients can see its confidential data. Your counterparty receives the information needed for the transaction, such as assets and amounts, while other balances, positions and client records remain private within your systems. You control disclosure of your own records, including to auditors and regulators, and no intermediary receives them to enforce the transaction.
Can a transaction get stuck?
No. If an exchange does not complete by its deadline, you can recover the assets you committed. Either both transfers complete or neither does, so you cannot send an asset without receiving what you are owed. Collateral deliberately pledged under an agreement remains locked until its agreed release conditions are met.
Who do we depend on to get our assets back?
Recovery depends only on your institution taking action once an exchange has missed its deadline. You do not need a counterparty or an intermediary to come back online, cooperate or approve the release of your assets.
Which existing systems can we use Prividium Connect with?
Prividium Connect works alongside Hyperledger Besu and Prividium Ledger, so institutions using either can keep their existing systems. We will expand support to the networks our customers need to transact with. Matter Labs can assess compatibility and integration requirements for other institutional environments with your team.
Which settlement layers can we choose?
You and your counterparty choose a common settlement layer: Ethereum or an EVM-compatible chain, including a private chain. It records the proofs and commitments needed to make the outcome final for both parties, not the confidential transaction data.
Do we need Prividium Commander or Prividium Ledger?
No. Prividium Connect can be used on its own and with the ledgers institutions already run. Users of Prividium Commander, Matter Labs’ separate software product for institutional privacy and control, benefit from native integration with Prividium Connect.
Who operates Prividium Connect?
You can operate Prividium Connect yourself or choose a provider, while retaining control of its integration with your ledger. Each participating institution’s connector runs within its own security perimeter. Matter Labs works with your team on evaluation, integration and deployment.
