Layer 2 Weekly Roundup #3

Welcome to the 3rd edition of the Layer 2 Weekly Roundup. Every week, this newsletter covers the latest and most important updates from within Ethereum’s Layer 2 ecosystem.

Catch up on the previous edition HERE.

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Ecosystem Highlights

• Opensea is now LIVE on Optimism

• Alchemix is now LIVE on Optimism

• Michael Silberling creates new dashboard to track Opensea activity on Optimism

• Aztec have announced the ERC-4626 bridge

• Specular (Optimistic Rollup) breaks down the importance of the EVM-native approach

• Starkscan announce a next-generation block explorer powered by StarkWare technology!

• Nostra announce new decentralized exchange for StarkNet

• Introducing zkBridge - a trustless, permissionless, extensible and efficient cross-chain bridge

• mySwap announce analytics page for StarkNet AMM

• Unlock Protocol now LIVE on Arbitrum

• CANVAS Connect will soon be coming to StarkNet to bring gasless DeFi to Ethereum applications

• Braavos (StarkNet wallet) publish transcript from recent community AMA

L2 Protocol Highlights

• StarkWare announce regenesis plan for Cairo 1.0

• @eniwhere_ creates a new interface command line tool for StarkNet

• @Kautukkundan introduces Stackr Network - an SDK for building application specific Rollups

Media - Twitter Spaces & Podcasts

• zkHack host another episode of Whiteboard Sessions to discuss zkEVMs with Jordi Baylina from Polygon Hermez

• The Bean Podcast have released a new episode featuring Toghrul Maharramov from Scroll to talk about Scroll as well as the overall ZK landscape

• Celestia record a new episode of their protocol deep dive series to discuss the inner workings of Scroll’s zkEVM with Toghrul Maharramov

• @stevenewcomb from zkSync is joined by Decrypt Media to discuss ZK scaling and the importance of EVM-Compatibility

• StarkWare are hosting a Twitter Space to discuss L2s, and Proto-Danksharding (EIP-4844)

• The Ethereum Foundation have published the latest EIP-4844 community call

• Infura & StarkNet talk about enabling DApps to scale using zk-Rollups

Events

• Scroll announces Rollup Day for Devcon Week

• StarkNet Brussels Meetup on October 5th

• Arbitrum’s Devcon Hackathon now has a prize pool of approximately $140,000 - be sure to register before next week!

• Register for the next ETH Global Hackathon taking place in San Francisco this November

Interesting Articles

• @norswap publish an article outlining the differences between Arbitrum Nitro and Optimism Bedrock

• @apolynya discusses why Rollups can offer higher throughput than L1 execution

• @Ingo_zk publishes a new paper on ZK-friendly hash functions

• Diamond Protocol break down the recent Arbitrum Nitro upgrade

Interesting Tweets

Orbiter Finance 🛸 @Orbiter_Finance

🛸 #L2Data #RollupData 🚩The TOP 5 rollups with the most transactions in 7 days: 1. @optimism 1,611,097 2. @arbitrum 1,449,372 3. @Immutable 200,946 4. @loopringorg 135,585 5. @zksync 133,046 The Data Source: orbiter.finance/data Try to bridge👉orbiter.finance

Orbiter Finance 🛸 @Orbiter_Finance

🛸 #L2Data #DappsData 🚩The TOP 10 dapps ranked by ‘New Users’ in the 7 days: This thread shows: 1. On Arbitrum 2. On Optimism 3. On zkSync 4. On Arbitrum Nova 5. On StarkNet (It shows all dapps if less than 10) The Data Source: orbiter.finance/data

orbiter.financeOrbiter

StarkWare @StarkWareLtd

Weekly stats - txs settled on Ethereum: #StarkExStats: 🚀 4.3M Txs on Mainnet 232.8M Txs to date #StarkNetStats: ✨ Txs last week: 295K on Goerli / 17K on Mainnet Txs to date: 7.1M on Goerli / 378K on Mainnet Contracts deployed last week: 4.6K on Goerli / 1.8K on Mainnet

StarkWare @StarkWareLtd

Weekly stats - txs settled on Ethereum: #StarkExStats: 🚀 3.9M Txs on Mainnet 228.5 M Txs to date #StarkNetStats: ✨ Txs last week: 230K on Goerli / 32K on Mainnet Txs to date: 6.8M on Goerli / 361K on Mainnet Contracts deployed last week: 3K on Goerli / 1K on Mainnet https://t.co/bnYCV0viBY

vitalik.eth @VitalikButerin

I built a basic implementation of a SNARK (PLONK) compiler, prover and verifier in python: github.com/ethereum/resea… Intended primarily for educational value, and for simple inputs it can exactly reproduce verification keys generated by

zkrepl.devzkREPL

polynya @apolynya

Today, 7 out of top 15 on L2beat go with off-chain data StarkEx/Net, Arbitrum, zkSync, Polygon, Metis have either released or announced in-house off-chain data solutions It's happening whether we like it or not So, here's the showerthought: split-security data-sharding...

Who to Follow

• Swagtimus.eth (Ecosystem/Technical)

• Nurstar.eth (StarkNet/Ecosystem/News)

• pseudotheos (Technical Research)

• polynya (Technical Research)

• Crypto-Gucci.eth (Ecosystem/News)

• Toghrul Maharramov (Technical Research)

• Sassal.eth (Ecosystem/Educator)

• Luozhu (Technical Research)

• Haym (Education/Research/History)

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This newsletter is for educational purposes only, and should never in any way be considered as financial or investment advice.

Thanks for reading.