Matter Labs, the developer behind Ethereum layer-two network ZKsync, has launched Prividium Connect for private, atomic asset swaps between existing blockchain networks. The system uses zero-knowledge proofs to verify transaction rules while keeping institutional account balances, asset positions, customer identities and other confidential records within each institution’s systems. Atomic settlement means both transfers complete simultaneously or neither does; if one side fails to deliver on time, both parties can reclaim their assets. Prividium Connect currently supports Hyperledger Besu and Prividium Ledger, with additional networks planned in response to customer demand. Matter Labs says it is the first mainnet-live solution to cryptographically enforce private cross-chain transactions. The company has also proposed deploying Prividium Connect on public blockchains and directing interoperability fees into the ZK economy. A fee switch is under audit, while the existing Fee Flow System on ZKsync Era would convert collected fees into ZK tokens for distribution under governance decisions.