Matter Labs open-sources Prividium core as Bundesbank runs self-hosted pilot

Matter Labs, the developer behind ZKsync, has released the core of its Prividium privacy blockchain platform under an open-source licence, allowing financial institutions to run permissioned chains from public code without a commercial agreement. The Deutsche Bundesbank is named as the first institution to deploy the platform in its own infrastructure, running a self-hosted instance in which smart contract and token data remain inside the central bank’s environment. Matter Labs says the two organisations are collaborating on design and testing, though the Bundesbank has not commented publicly and the purpose of the deployment has not been disclosed.

The open-sourced component governs roles and access rights on a Prividium chain, controlling who can read from and write to the ledger. Matter Labs retains paid products around the administration console, user access tooling, and connectors, including core banking integration. What Prividium sends off-chain is not transaction data but a cryptographic proof that the ledger updated correctly, which is recorded on Ethereum or another compatible chain, a structure that keeps sensitive financial data inside the institution while anchoring integrity externally.

The commercial signals in the existing user base are worth tracking. Deutsche Bank’s DAMA 2 tokenised fund project and a UBS proof of concept for a digital gold product both made use of ZKsync, and Cari Network has adopted Prividium specifically for tokenised deposits, where the core banking connector is the operative piece. Chief executive Alex Gluchowski framed the open-source release as a starting point rather than an end state, flagging interoperability between institution-run chains and between those chains and public markets as the harder problem still to be solved.