Ethereum L2 Scroll launches on mainnet

Scroll’s zkEVM is designed to have bytecode-level compatibility, which enables transactions to be processed at faster speeds and lower costs


LEEDDONG/Shutterstock modified by Blockworks


Scroll, the latest Ethereum layer-2 network, has launched on mainnet.

According to block explorer data, Scroll’s testnet counts more than 900,000 wallet addresses as participants and has seen an estimated seven million transactions since August. Scroll’s launch follows a year of testnet operation that has seen over 55 million transactions, the Scroll team told Blockworks. 

Scroll is a general-purpose zkEVM roll-up intended to marry Ethereum’s network security with lower fees and latency. 

Scroll co-founder Sandy Peng told Blockworks in an interview that existing Ethereum projects will be able to directly deploy their projects onto Scroll and utilize its zkEVM technology. 

“The significance of zkEVM to developers lies in its ability to batch proofs in a highly efficient manner, offering faster transaction speeds at reduced costs. A key element in this process is bytecode-level compatibility,” Peng said.

Bytecode in computer programming is a language that simplifies complicated machine cryptography so that code can be more easily processed by computer hardware. 

Deployed smart contracts will store the bytecode of their transactions on Scroll. These transactions will then be sent to a centralized zkEVM node that will prove that the state of the transaction is accurate without revealing the contents of the transaction. 

Once the transaction is verified, the information will be published to Ethereum, updating the transaction’s state without the transaction being re-executed.

“Thanks to this feature, Ethereum devs can leverage all the same tools they are familiar with, ensuring that everything operates seamlessly right from the start,” Peng said.

Scroll’s mainnet code has been audited by four major auditing firms including: Zellic, Trail of Bits, OpenZeppelin and KALOS, Peng notes.

Path to decentralization

The Scroll team is currently in its “research” phase for its decentralized prover network and decentralized sequencer.

“In the current instantiation, the protocol will halt if the sequencer goes offline, and no back-up is available,” Peng said. 

Peng notes that the team is currently working on a protocol upgrade that will enable “forced batches.” 

This means that the protocol will allow the permissionless publication of batches through the base layer even in the case of a sequencer halt. 

“Mid-term, the goal is to minimize the probability of a sequencer halt through decentralization,” Peng said. 

Although in its current state, Scroll is upgradeable via a multi-signature wallet controlled by its core team, there are plans to introduce a Security Council and a delayed upgrade mechanism in the near future. 

This means that the protocol will only be upgradeable if it receives approval from the Security Council, and the multisig team will only have the capability of initiating delayed upgrades, Peng explains. 

“We have been working on an SGX-based second prover with an external team of TEE experts for more than 6 months, which will soon enable us to have a functioning Multi-Prover deployed on Scroll,” she said.

Start your day with top crypto insights from David Canellis and Katherine Ross. Subscribe to the Empire newsletter.

The Lightspeed newsletter is all things Solana, in your inbox, every day. Subscribe to daily Solana news from Jack Kubinec and Jeff Albus.


Upcoming Events

Salt Lake City, UT

WED - FRI, OCTOBER 9 - 11, 2024

Pack your bags, anon — we’re heading west! Join us in the beautiful Salt Lake City for the third installment of Permissionless. Come for the alpha, stay for the fresh air. Permissionless III promises unforgettable panels, killer networking opportunities, and mountains […]

recent research

Screenshot 2024-05-23 091855.png


Bitcoin L2s aim to boost scalability while preserving decentralization and security, unlocking a better user experience, and new avenues for Bitcoin-powered innovations. However, no existing Bitcoin L2 leverages the full security of Bitcoin.



As part of the #Breakout2024 plans, Radix has introduced Token Trek


House members ask Gensler to keep a “consistent and equitable approach” with ether ETF proposals after the agency approved spot bitcoin ETFs in January


Using old-world instruments to address crypto user experience challenges goes against what this industry set out to do


And, weeks of a potential crypto ETF decision are no stranger to chaos


The FIT21 Act marks the second crypto-focused piece of legislation to advance in Congress this month


More than half of Solana transactions fail