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Rollups
Crypto Exchange OKX's Polygon-Powered Layer 2, 'X Layer,' Hits Public Mainnet
OKX's comes as other major cryptocurrency exchanges, like Coinbase and Kraken, have also pursued their own layer 2 networks over the last year.

Venture Firm A16z Releases Jolt, a 'Zero-Knowledge Virtual Machine'
The release is the product of a16z's first foray into deep tech research.

Espresso Systems Raises $28M in Fresh Funds, Led By A16z Crypto
The leading shared sequencer firm said it would further invest in its products as well as additional hires.

Optimism Finally Starts Testing 'Fault Proofs' at Heart of Design – and of Criticism
A version of the new proof system, which will help secure withdrawals from Optimism and other networks based on its tech, will be deployed to Optimism's Sepolia test network on Tuesday.

Ethereum Staking Protocol Swell Unveils Layer-2 Rollup With $1B Total Value Locked
Swell developed the rollup alongside Ethereum scaler AltLayer and a16z-backed crypto-staking project EigenLayer.

Ethereum Finalizes 'Dencun' Upgrade, in Landmark Move to Reduce Data Fees
A key element of the upgrade is to enable a new place for storing data on Ethereum – referred to as "proto-danksharding," which gives room for a dedicated space on the blockchain that is separate from regular transactions, and comes at a lower cost.

Ethereum Blockchain Counts Down to 'Dencun' Upgrade, Set to Reduce Fees
The upgrade is designed to usher in a new era of cheaper fees for the growing array of layer-2 networks that operate on top of Ethereum.

Where Did We Go Wrong With Ethereum Scaling?
It would not be a surprise if the fragmentation of layer 2 rollups led to the downfall of the network's application dominance, =nil; Foundation Chief Product Officer Avi Zurlo argues.

What to Expect From Ethereum’s Cancun-Deneb Upgrade
The beginning of "The Surge" era in Ethereum's roadmap sees a range of enhancements to scalability, efficiency and security. Here’s a breakdown.

Polygon, StarkWare Tout New 'Circle STARKs' as Breakthrough for Zero-Knowledge Proofs
Circle STARKs are supposed to accelerate the proving process for zero-knowledge rollups, according to a white paper published by Polygon Labs and StarkWare.
