Rollups

Kraken Chairman Jesse Powell (CoinDesk)
Kraken Said to Seek Partner to Help Build It a Layer 2 Blockchain Network
The crypto exchange is still considering which blockchain developer should build its network, with Polygon, Matter Labs and the Nil Foundation in the mix, according to people...
Kraken Chairman Jesse Powell (CoinDesk)

Scroll co-founder Sandy Peng (Bradley Keoun)
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)

Manta is the latest blockchain network to reconsider its commitment to OP Labs' OP Stack. (Justin Henry/Creative Commons)
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 Polygo...
Manta is the latest blockchain network to reconsider its commitment to OP Labs' OP Stack. (Justin Henry/Creative Commons)

Scroll co-founder Sandy Peng (Bradley Keoun)
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)

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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...
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Buenos Aires (Unsplash)
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 (Unsplash)

CELO BARCELONA (1).jpeg
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 cu...
CELO BARCELONA (1).jpeg

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

Ethereum fees known as "gas prices" have stayed low despite a recent crypto frenzy that in the past might have caused congestion. (Creative Commons, modified by CoinDesk.)
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...
Ethereum fees known as "gas prices" have stayed low despite a recent crypto frenzy that in the past might have caused congestion. (Creative Commons, modified by CoinDesk.)

Optimism CEO Karl Floersch (Optimism)
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....
Optimism CEO Karl Floersch (Optimism)