The technology behind Prividium®
We build Prividium, the blockchain platform for banks and financial institutions, and the zero-knowledge technology it runs on. Here's the whole picture.
One mission, one stack
Everything Matter Labs builds serves one goal: bring regulated finance onchain without tradeoffs. Prividium® is the platform; the ZK Stack, Atlas, and ZKsync Connect are the technology it stands on.
The same stack also powers ZKsync, a public network of chains secured by zero-knowledge cryptography, where the technology is proven at scale, in the open.
Prividium®: the platform for regulated institutions
Prividium lets a bank or financial institution operate a private, permissioned blockchain in its own infrastructure, while anchoring every transaction to Ethereum. User-level privacy, built-in compliance, SOC 2 examined controls, and native connectivity to global liquidity.
ZKsync Connect: interoperability for institutions
The first interoperability protocol built for institutions: real-time, ZK-secured connectivity and atomic settlement across public and private systems. Trust math, not middlemen.
ZK Stack: the framework behind Prividium
ZK Stack is the open-source framework every Prividium chain is built on. Any institution or startup can use it to launch a customizable, enterprise-grade ZK chain that scales globally, interoperates natively, and inherits Ethereum's security.
Atlas + Airbender: speed you can settle on
Atlas pairs a low-latency sequencer with Airbender, a high-performance open-source RISC-V prover, to deliver ~1-second finality and 15,000+ TPS with full EVM equivalence: block proofs in seconds, at a fraction of a cent.
The public network
The same technology also runs ZKsync, a public network of blockchains secured by cryptography, not validators. It is the production proving ground for everything Prividium ships: fast, low-cost, and verifiable on Ethereum.
Frequently asked questions
Prividium is the Ethereum-secured blockchain platform for banks and financial institutions, built by Matter Labs. An institution operates its own private, permissioned chain; only zero-knowledge proofs reach Ethereum, so data stays private while settlement stays final.
Prividium is built on the ZK Stack, Matter Labs' open-source framework for zero-knowledge chains. It runs as a validium: transaction data stays inside the operator's infrastructure while validity proofs are posted to Ethereum for verification and finality.
ZK Stack is Matter Labs' open-source framework for launching customizable, Ethereum-secured ZK chains. Every Prividium chain is built with it, and so are the public chains of the ZKsync network.
ZKsync is a network of blockchains, built by Matter Labs, that uses zero-knowledge proofs to scale Ethereum while inheriting its security. Instead of trusting validators, ZKsync proves every transaction with cryptography. It is the public counterpart to Prividium, built on the same ZK Stack.
A ZK rollup proves every batch of transactions valid with a cryptographic validity proof, so funds can be withdrawn as soon as that proof is verified on Ethereum. Optimistic rollups instead assume transactions are valid and rely on a challenge period (commonly seven days).
Atlas is a major upgrade to Matter Labs' stack that pairs a low-latency sequencer with Airbender, an open-source RISC-V prover, to deliver fast finality and high throughput with full EVM equivalence. Together they generate validity proofs quickly so transactions settle on Ethereum at low cost.