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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.

Oct 17, 2023, 4:00 p.m.
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Scroll, a layer 2 to Ethereum, confirmed Tuesday that its main network had gone live, joining the competition among “scaling solutions” aiming to bring about cheaper and faster transactions on the largest smart-contracts blockchain.

The blockchain makes use of zero-knowledge technology, and is compatible with the Ethereum Virtual Machine (EVM), thus making it easier for developers to move their applications from Ethereum onto the new "zkEVM" network. The Polygon and Matter Labs blockchain-development teams have their own zkEVM offerings, while other layer 2 networks Arbitrum and OP Labs’ OP Mainnet use a different technology known as “optimistic rollups.”

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“We can expect Scroll to scale Ethereum by an order of magnitude,” said Sandy Peng, the co-founder of Scroll, to CoinDesk TV.

Last week, 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.

The launch of the network comes nearly seven months after competitors Polygon and Matter Labs released their own zkEVMs.

“I often compare it to a train, and the cost of which depends on how many passengers are on the same train,” Peng added.

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

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KuCoin Hits Record Market Share as 2025 Volumes Outpace Crypto Market

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KuCoin captured a record share of centralised exchange volume in 2025, with more than $1.25tn traded as its volumes grew faster than the wider crypto market.

What to know:

  • KuCoin recorded over $1.25 trillion in total trading volume in 2025, equivalent to an average of roughly $114 billion per month, marking its strongest year on record.
  • This performance translated into an all-time high share of centralised exchange volume, as KuCoin’s activity expanded faster than aggregate CEX volumes, which slowed during periods of lower market volatility.
  • Spot and derivatives volumes were evenly split, each exceeding $500 billion for the year, signalling broad-based usage rather than reliance on a single product line.
  • Altcoins accounted for the majority of trading activity, reinforcing KuCoin’s role as a primary liquidity venue beyond BTC and ETH at a time when majors saw more muted turnover.
  • Even as overall crypto volumes softened mid-year, KuCoin maintained elevated baseline activity, indicating structurally higher user engagement rather than short-lived volume spikes.

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Ethereum Foundation makes post quantum security a top priority as new team forms

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EF researcher Justin Drake says a new post-quantum team will drive wallet safety upgrades, research prizes and test networks as quantum timelines shorten.

What to know:

  • The Ethereum Foundation has elevated post-quantum security to a top strategic priority, forming a dedicated Post Quantum team led by Thomas Coratger with support from leanVM cryptographer Emile.
  • Researcher Justin Drake said Ethereum is shifting from background research to active engineering, including biweekly developer sessions on post-quantum transactions and multi-client post-quantum consensus test networks.
  • The foundation is backing new cryptography with funding and outreach, launching two $1 million prizes, planning post-quantum community events and education, and stressing that blockchains must prepare early for quantum threats despite their long-term nature.