June 19, 2020 Matter Labs launches zkSync second layer scaling engine.

Matter Labs, the blockchain research and implementation company, has launched its second-layer scaling engine, zkSync on Ethereum mainnet. zkSync uses zero-knowledge proofs in a rollup construction to aggregate transactions off-chain while posting transaction data on-chain and seeks to offer throughput of up to 2,000 transactions per second for Ether and ERC20 token transfers.