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L2Beat Outlines Fraud Proof Trilemma

Optimistic rollups balance trade-offs between safety, decentralization, and promptness in their fraud proof system.

Quick Take

  • L2Beat outlines the Fraud Proof Trilemma.

  • Polynomial introduces Trade 2.0.

  • Upgrading an OP Stack chain into ZK.

  • 34 million ETH is now staked on Ethereum.



L2Beat On Fraud Proof Trilemma

L2Beat, an L2 analytics platform, published an article detailing the current state of fraud proof systems in optimistic rollups. The article introduces the "fraud proof trilemma," which highlights the trade-offs between safety, decentralization, and promptness in fraud proof systems. L2Beat points out that optimistic rollups are vulnerable to resource exhaustion attacks, where attackers might economically outlast honest challengers. The article also discusses the importance of the challenge period length, emphasizing the need to provide sufficient time for challengers to contest invalid state roots. Despite the economic incentive challenges faced by fraud-proof systems, they remain relevant because they currently offer greater scalability and lower costs compared to existing ZK rollups.

Polynomial Introduces Trade 2.0

Polynomial Protocol launched Trade 2.0, its advanced leverage trading platform built on Polynomial Chain. Initial markets for ETH, BTC, and SOL are now live. Trade 2.0 features support for limit orders, cross-margin trading, and gasless transactions. The platform's liquidity is backed by early stakers on Polynomial Chain. The first version of Polynomial’s perpetual swaps exchange, Trade 1.0 has processed over $4.7 billion in trading volume on OP Mainnet since its launch in March 2023. To incentivize activity, Polynomial is distributing one million protocol points per day to Trade 2.0 users. Polynomial Chain is an OP Stack L2 that features a native liquidity layer designed for derivatives applications.

Upgrading An OP Stack Chain Into ZK

Security auditor Zach Obront introduced OP Succinct, a new design for upgrading an OP Stack chain to a full ZK rollup with minimal changes. OP Stack chains currently post compressed transaction data to Layer 1 as blobs, and the system uses a dispute game to verify the state. The upgrade to a ZK rollup replaces the dispute game with a Zero-Knowledge (ZK) proof system, allowing anyone to post the rollup state by providing a validity proof. The transition process involves modifying contracts to verify ZK proofs, upgrading the op-proposer to manage and submit proofs, and implementing a zk-proposer that generates and verifies witness data using the Kona prover. The implementation is a collaborative effort between Succinct Labs and the OP Labs team.

Other News

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Aave Deploys V3 On ZKsync Era

The Aave DAO plans to redistribute airdrops received from the ZKsync ecosystem to Aave users through liquidity mining incentives.

Quick Take

  • Aave deploys V3 on ZKsync Era.

  • Optimism announces the SUNNYs Awards.

  • Remix Project releases v0.53.0.

  • Basenames surpass 10k registrations.



Aave Deploys V3 On ZKsync Era

Aave deployed Aave V3 on the zkSync Era mainnet, extending its liquidity and lending services to the Layer 2 network. The deployment follows a governance vote with unanimous approval from AAVE token holders. The initial markets will offer lending and borrowing for USDC, USDT, WETH, wstETH, and ZK. The integration utilizes Chainlink for the price feeds. It also includes the expansion of Aave's native stablecoin, GHO, to the zkSync Era. The Aave DAO plans to redistribute airdrops received from the ZKsync ecosystem to Aave users through liquidity mining incentives. Although the execution payload has been deployed, the markets are not live on Aave's front end at the time of writing.

Optimism Introduces The SUNNYs

Optimism announced The SUNNYs, an awards ceremony celebrating creators and applications across the Superchain, offering 540,000 OP in prizes to the winners. Builders who have deployed mainnet contracts on any of the 15 OP Stack chains within the Superchain are eligible to nominate their projects for an award. Instead of a voting system, the winners will be selected using a framework developed by Opensource Observer, which evaluates onchain data. The SUNNYs will provide over 20 awards across Creator, Social, DeFi, Utility, and Farcaster tracks. The winners will be announced during a live event on September 18th.

Remix v0.53.0 Release

Remix Project, a web-based IDE for Ethereum development, released version 0.53.0, introducing new keyboard shortcuts for file management, updates to the Circom Plugin, and the ability to publish multiple files to Gist. The Circom Plugin now offers a step-by-step interface for proof generation, updated templates, Plonk as a proving scheme, and options for selecting constraints, exporting verifier contracts, and advanced configurations. Remix is a toolset for developing, testing, deploying, and debugging Ethereum smart contracts.

Other News

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Arbitrum Technical Roadmap

Offchain Labs will ship Arbitrum Stylus, fast withdrawals, and BoLD to mainnet by the end of this year.

Quick Take

  • Technical roadmap for Arbitrum.

  • Bolt Protocol transaction preconfirmations.

  • Optimism adopts the ERC-7683 standard.

  • Status Announces L2 On Linea.



Arbitrum Technical Roadmap

Offchain Labs, the team behind Arbitrum AnyTrust chains, released a technical roadmap outlining progress on decentralization, interoperability, scaling, and performance. Stylus, a programming environment for writing smart contracts using WASM, is set to go live on Arbitrum One on September 3rd. In Q3, Arbitrum will introduce fast withdrawals, allowing AnyTrust chains to settle to their parent chain within minutes. In Q4, Arbitrum will launch BoLD, a dispute resolution protocol, on the mainnet. Looking ahead to 2025, Offchain Labs plans to roll out multi-client support, dynamic gas pricing, and chain clusters, and potentially decentralize the Arbitrum sequencer. Offchain Labs is also researching the integration of ZK tech into Arbitrum.

Bolt Protocol Alpha Release

Bolt Protocol released an alpha version of its transaction preconfirmation system, enabling sub-second confirmations for most transactions. The system allows Ethereum block proposers to make credible, trustless commitments about the transactions they include in their blocks, enhancing the user experience. The implementation supports transaction pre-confirmations that are faster than Ethereum's 12-second block time. The system also ensures that proposers are held accountable by enforcing penalties if they breach their commitment. Bolt Protocol is fully open-source and live on the Helder devnet.

Optimism Adopts ERC-7683

Across, a cross-chain bridge protocol, announced that Optimism is adopting ERC-7683, a cross-chain intents standard that allows order fillers from any compatible system to fulfill intents by adhering to a unified order structure. Optimism will implement the intents standard on top of its new native interoperability architecture. By adopting ERC-7683, Optimism is extending its native interoperability to reach the broader Ethereum ecosystem. The two systems help enhance the speed, security, and cost-efficiency of cross-chain transfers for users. ERC-7683 was developed by Across in collaboration with Uniswap Labs.

Status Announces L2 On Linea

Private messaging platform Status announced plans to launch the Status Network, a new layer-2 rollup built on the Linea software stack. Status will also join as the first contributor to Linea's tech stack. Linea is an EVM-equivalent ZK-rollup by Consensys.

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