Rollups


Tech

Scroll Confirms Mainnet Live, as Co-Founder Predicts Speed Gains Over Ethereum

Blockchain data showed that Scroll’s smart contract was deployed on Oct. 8, but the team held off making its official announcement until this week.

Scroll co-founder Sandy Peng (Bradley Keoun)

Tech

Manta's Layer-2 Blockchain Already Plans to Ditch OP Stack for Polygon

The network, which just went live a couple weeks ago as a so-called optimistic rollup – the core underpinning of OP Stack – will now become a “ZK-rollup,” which is what Polygon’s software kit provides.

Manta Ray. (Justin Henry/Creative Commons)

Tech

Scroll zkEVM Launches, Blockchain Data Shows, Competing With Polygon, Matter Labs

The new Ethereum layer-2 network's debut adds to the competition among rival providers of so-called "zkEVMs," including Polygon and Matter Labs.

Scroll co-founder Sandy Peng (Bradley Keoun)

Tech

At Last, Blockchain Developer OP Labs Delivers ‘Fault Proofs’ Missing From Core Design

The developer’s OP Stack software, the blueprint for Coinbase’s new Base blockchain, had been criticized for the lack of a crucial security feature – likened to driving a fast car without airbags.

OP Labs CEO Karl Floersch. (Optimism)

Tech

Buenos Aires Releases Blockchain Digital Identity Solution Powered by zkSync's ZK Proofs

Citizens of Buenos Aires can access the identity solution, the QuarkID wallet, where they can store their birth and marriage certificates, according to the city government.

Buenos Aires, Argentina. (Sasha Stories/Unsplash)

Tech

Polygon Emerges as Suitor for Celo’s New Layer-2 Blockchain, Competing With OP Stack

Celo, which is ditching its standalone blockchain in favor of a new "layer-2" network atop Ethereum, had originally signaled plans to rely on Optimism's OP Stack, a similar customizable kit to Polygon's but using Optimism’s “optimistic” technology.

Image tweeted by Celo officials on Monday from conference in Barcelona. (Celo)

Tech

‘Sequencers’ Are Blockchain’s Air Traffic Control. Here’s Why They’re Misunderstood

Leading rollup operators are criticized for using "centralized sequencers" to package transactions and pass them down to Ethereum, but the real risks may lie elsewhere.

Air traffic controller (Beckett P/Unsplash, modified by CoinDesk)

Tech

Ethereum Handled Friend.tech Frenzy Without 'Gas Fee' Spike. Why That’s a Big Deal

Friend.tech, Crypto's latest fad, didn't drive up congestion and fees on Ethereum the way frenzies have in the past – possibly a sign that the blockchain's efforts to scale by fostering supplemental "layer-2" networks, like Coinbase's new Base, are bearing fruit.

Even as ETFs capture attention, Jan van Eck is focused on gas fees. (Creative Commons, modified by CoinDesk.)

Tech

Coinbase’s Chosen Blockchain Brand Sees Zero Threat from Zero Knowledge

Many Ethereum aficionados have predicted that the most promising layer-2 blockchains would be built not using the OP Stack’s “optimistic rollup” technology – favored by the U.S. crypto exchange Coinbase – but with a different setup known as “ZK rollups,” reliant on "zero-knowledge" cryptography.

OP Labs CEO Karl Floersch. (Optimism)

Tech

Zero-Knowledge Rollup ZKM Sets Out to Make Ethereum 'Universal Settlement Layer'

With funding from the foundation that oversees development of the Metis layer-2 Ethereum protocol, ZKM is developing a hybrid rollup that combines an Optmistic rollup and Zero-Knowledge rollup into one.

Rollup (Bru-nO/Pixabay)

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