TL;DR

• The sum of all funds locked on Ethereum converted to USD is $8.94 B at the time of writing.
• Stylus in Action: Lifecycle of a Stylus Contract: This past February, Offchain Labs announced Stylus, an upgrade to the Arbitrum tech stack that will be ready later this year. Since then, they’ve been hard at work building the technology; they’ve been ambitiously tackling one of the most crucial aspects of the Stylus stack — its fraud prover — and they’re excited to unveil the progress they’ve made. In this article, they’ll dive deeper into the technical details. Post-Mortem Report: Ethereum Mainnet Finality (05/11/2023). Arbitrum Nova has surpassed 600,000 unique addresses. The Arbitrum ecosystem is now fully integrated into Ledger. Compound III has been deployed to Arbitrum. TaskOn is now live on Arbitrum.
• The official date of OP Mainnet’s upgrade to Bedrock has been set: June 6, 2023, at 16:00 UTC. The upgrade will require 2–4 hours of downtime for OP Mainnet. Visit Mission Control for full details on what to expect. RetroPGF2: Learnings & Reflections. Season 4: The next experiment in community governance: The Optimism Collective is building community governance through experimentation. This iteration happens through time-bound governance experiments known as “Seasons.” Seasons allow the Collective to test new strategies for incrementally increasing community involvement in the governance of the Optimism Collective while incorporating reflection and feedback as fundamental stages of the process. This approach is informed by ongoing research into the challenges and successes of other DAOs. Twitter Space: OP Radio #32: ETHGlobal Lisbon with OP Labs Head of DevRel Mattie. Chainlink shared a handful of great use cases of Chainlink Automation on Optimism.
• The MetisDAO Foundation has been launched, marking a significant milestone in Metis’ journey toward building a decentralized, efficient, and inclusive blockchain ecosystem. Forward Protocol Integrates Metis: Metis Layer 2 has completed its integration with Forward Protocol, which will allow anyone regardless of their technical knowledge to deploy customizable dApps on Metis’ fast, secure, and highly scalable. Ecosystem Community Calls every Friday at 4 pm UTC. Twitter Space: Legal Clarity for DAOs.
• Boba Network and Forwa rProtocol have partnered to deliver a framework for scalable, secure, and flexible DeFi environments using user-friendly smart contract templates. Boba Network x Caesars Temple: Be one of the first users to participate in the exclusive soft launch of Caesarstemple, early participants will be entered to win future rewards. Twitter Space: Boba Network: Elevation of Multichain Layer2.
• Aztec rollup circuit proving time sped up, Nullifier Tree (used to prevent actions being repeated) reduced from 2²⁵⁴ leaves to 2³². Highlighting Espresso Martini, a decentralized sequencer selection protocol for Aztec submitted by Espresso Systems. Check what would Aztec Labs CEO Zac_Aztec like to see built with Noir. Aragon and Aztec join forces to bring private voting to NounsDAO.
• Loopring’s Block trading is live: CEX liquidity directly from your self custodial wallet on L2. Loopring Smart Wallet w/ Social Recovery — Your Ultimate Crypto Security Guide: In this blog post, the Loopring team is be discussing the security advantages of the Loopring Smart Wallet and compare it with traditional EOA wallets like MetaMask and hardware wallets like Ledger. Check out the knowledge base for all things Loopring L2.
• On the ZK side, Scroll finished circuit support for Shanghai EIPs, which will soon be deployed on our sequencer. They also improved the RLP and TX circuits to support EIP-2718 (envelope transactions). Scroll Alpha testnet has been live for 3 months, and the team examines all the cool stuff the community is building on Scroll. In the new Zero Knowledge episode, Anna Rose chats with Scroll co-founders Ye Zhang and Sandy Peng, delving into updates about their zkEVM L2, the progress they have made over the past year and what it really means to build in public. They discuss the challenges and rewards of founding a fully remote organization and how the team navigates the ever-changing ZK landscape. Scroll’s ETHDam recap.
• Starknet Mainnet is now operating on v0.11.1. The next milestone is v0.11.2 — hitting Testnets Mon, then Mainnet soon after. Reading Sierra: Starknet’s secret sauce for Cairo 1.0. The Starknet Summit happening on August 31, 2023, in the San Francisco Bay Area. Starknet is taking over Barcelona. The re-launch of the Starknet Toronto meetups. 2nd meetup in Mexico. Sign up for the Pragma Cairo 1.0 hackathon and do your magic. The hackathon starts on June 12th. Twitter Scaces: Chainlink on Starknet, ZK-Rollups & native Account Abstraction with Starknet. Prepare for a seismic shift in art, music, and gaming through Starknet’s dynamic NFTs. From Solidity to Cairo 1.0 (WIP). Ahead of the Curve: Install Cairo 1.0 Alpha and Prepare For Regenesis. Cairo on Ethereum L1? A Glimpse into Starknet’s Enigmatic Future.
• zkSync reached 1.5M+ unique active addresses. In a recent session with Argent zkSync co-founders elaborated on the driving force behind building zkSync Era: Freedom. Highlights from the conversation. Entering the zkSync Era — Anthony Rose (Head of Engineering at Matter Labs): Episode 107. zkSync x LearnWeb3 DAO Account Abstraction on zkSync. Last month LayerZero announced its integration with zksync’s new zkEVM, cygaar deployed a set of contracts that allow you to mint, send, and receive NFTs between ETH and zksync using LayerZero. Here’s how you can play around with those contracts. It seems that zksync Era will soon become the new king of L2 systems. Twitter Space: The New Trend- Developing on ZKsync. Gelato is live on zksync on mainnet & testnet with both Gelato Relay & 1Balance.
• The Future of Web3 Gaming: Immutable co-founder and President, Robbie Ferguson, reports on the state, trends, and industry insights from the current web3 gaming landscape. The Expanding Immutable Gaming Ecosystem: Explore the 150+ games building on Immutable spanning across multiple genres and styles. Immutable Games Spotlight: Cross The Ages Goes Mainstream: Explore Cross the Ages and the 150+ other top games building on Immutable. Pirates of the Arrland and Immutable: Striking Gold with the First Economy-Driven Web3 MOBA Game. How To Make (Web3) Games That Don’t ‘Suck’: Why do traditional gamers still think that web3 games suck? How should game developers respond? A panel of industry veterans at Consensus 2023 (by Coindesk), including Immutable CMO, Devon Ferreira, reflect on the current trends and pitfalls of the industry and explore what the core ingredients of a winning game truly are.
• ZKSwap: A Layer-2 DEX Built on ZK-Rollup Technology: This guide explores ZKSwap, a DEX which uses ZK rollups to boost user experience.
• Exploring the dYdX Operations subDAO’s near future: The dYdX ecosystem is approaching a critical juncture: the potential launch of dYdX V4 mainnet is approaching, and the initial 6-month term of the dYdX Operations Trust (“DOT”) is set to expire. dYdX v4 Technical Architecture Overview: This post presents an overview of the architecture of V4. v4 Deep Dive: Indexer: This post presents a deep dive into the Indexer. The Indexer is a read-only layer that exists between the chain itself and end users. The Indexer’s purpose is to translate and serve data in an easier-to-use format. The dYdX Foundation team is gearing up to attend several upcoming events. ‘Weekly Governance Recap’. Stay up to date with the latest governance conversations and participate in forum discussions.
• Fees on rhino.fi: How to make crypto fees simpler, smarter and more transparent. Personalize your rhino account with your .zk zkSync Era domain name. The first-ever Sommelier airdrop on rhino.fi.
• Distributed Sequencer Technology: proposal for progressive decentralization of L2 sequencers using Distributed Validator Technology.
• Layer N zk fraud proofs: hybrid approach only requires a proof to be generated when there is possibility of fraud.
• L2 stats. Check out how much it costs to use Layer 2.
• And more!

Stats

• The sum of all funds locked on Ethereum converted to USD is $8.83 B at the time of writing.

Source.

Source.

How much does it cost to use Layer 2?

Source.

Optimistic rollups

Source.

Arbitrum One

• Stylus in Action: Lifecycle of a Stylus Contract: This past February, the Offchain Labs announced Stylus, an upgrade to the Arbitrum tech stack that will be ready later this year. Since then, they’ve been hard at work building the technology; they’ve been ambitiously tackling one of the most crucial aspects of the Stylus stack — its fraud prover — and they’re excited to unveil the progress they’ve made. In this article, they’ll dive deeper into the technical details.
• Post-Mortem Report: Ethereum Mainnet Finality (05/11/2023).
• Arbitrum Nova has surpassed 600,000 unique addresses.
• The Arbitrum ecosystem is now fully integrated on Ledger.

🚀Live on Arbitrum:

• Compound III has been deployed to Arbitrum.
• TaskOn is now live on Arbitrum.
• XP.NETWORK integrates Arbitrum Nova.
• FARE Protocol contracts are live on @arbitrum testnet.
• Welcome to the Arbitrum ecosystem Delorean.
• Dirty Burger Club integrated with Arbitrum.
• The Impact of Bond Protocol on the Arbitrum Ecosystem: A Recap of Bonds on Arbitrum.
• Welcome to the ecosystem Decentxyz.

Projects based on Optimism’s codebase

Optimism

• The official date of OP Mainnet’s upgrade to Bedrock has been set: June 6, 2023 at 16:00 UTC. The upgrade will require 2–4 hours of downtime for OP Mainnet. Visit Mission Control for full details on what to expect.
• RetroPGF2: Learnings & Reflections.
• Season 4: The next experiment in community governance: The Optimism Collective is building community governance through experimentation. This iteration happens through time-bound governance experiments known as “Seasons.” Seasons allow the Collective to test new strategies for incrementally increasing community involvement in the governance of the Optimism Collective, while incorporating reflection and feedback as fundamental stages of the process. This approach is informed by ongoing research into the challenges and successes of other DAOs.
• Twitter Space: OP Radio #32: ETHGlobal Lisbon with OP Labs Head of DevRel Mattie.
• Chainlink shared a handful of great use cases of Chainlink Automation on Optimism.

🚀Live on Optimism:

• Derivatives DEX fxdx is live on OP Mainnet.
• BoredTownNFT’s Optimistically Bored NFT art contest is in full swing.

Metis Andromeda

• Forward Protocol Integrates Metis: Metis Layer 2 has completed its integration with Forward Protocol, which will allow anyone regardless of their technical knowledge to deploy customizable dApps on Metis’ fast, secure, and highly scalable.
• The MetisDAO Foundation has been launched, marking a significant milestone in Metis’ journey towards building a decentralized, efficient, and inclusive blockchain ecosystem.
• Ecosystem Community Calls every Friday at 4 pm UTC.
• Twitter Space: Legal Clarity for DAOs.

Boba Network

• Boba Network and Forwa rProtocol have partnered to deliver a framework for scalable, secure, and flexible DeFi environments using user-friendly smart contract templates.
• Boba Network x Caesars Temple: Be one of the first users to participate in the exclusive soft launch of Caesarstemple, early participants will be entered to win future rewards.
• Twitter Space: Boba Network: Elevation of Multichain Layer2.

Zero-knowledge rollups

Source.

Aztec

• Aztec rollup circuit proving time sped up, Nullifier Tree (used to prevent actions being repeated) reduced from 2²⁵⁴ leaves to 2³².
• Highlighting Espresso Martini, a decentralized sequencer selection protocol for Aztec submitted by Espresso Systems.
• Check what would Aztec Labs CEO Zac_Aztec like to see built with Noir.
• Aragon and Aztec join forces to bring private voting to NounsDAO.

Loopring

• Loopring’s Block Trading is Live: CEX Liquidity Directly from your Self Custodial Wallet on L2.
• Loopring Smart Wallet w/ Social Recovery — Your Ultimate Crypto Security Guide: In this blog post, the Loopring team is be discussing the security advantages of the Loopring Smart Wallet and compare it with traditional EOA wallets like MetaMask and hardware wallets like Ledger.
• Check out the knowledge base for all things Loopring L2.

Polygon

• Response to ACPR’s Discussion Paper “‘Decentralised’ or ‘Disintermediated’ Finance: What Regulatory Response”.
• How to Add Your Application to Meroku’s DApp Store Registry.
• Solid World Launches on Polygon PoS.
• Purple Press Developer Dispatch 03.
• Help Us Make a Difference: PolygonImpact Questionnaire: Regenerative finance activity on the Polygon protocol continues to expand and diversify. The Polygon team needs your help to make sure these efforts have the maximum impact.

🚀Live on Polygon:

• Check out the latest Polygon integrations here.

Scroll

• On the ZK side, Scroll finished circuit support for Shanghai EIPs, which will soon be deployed on our sequencer. They also improved the RLP and TX circuits to support EIP-2718 (envelope transactions).
• Scroll Alpha testnet has been live for 3 months, and the team examines all the cool stuff the community is building on Scroll.
• In the new Zero Knowledge episode, Anna Rose chats with Scroll co-founders Ye Zhang and Sandy Peng, delving into updates about their zkEVM L2, the progress they have made over the past year and what it really means to build in public. They discuss the challenges and rewards of founding a fully remote organization and how the team navigates the ever-changing ZK landscape.
• Scroll’s ETHDam recap.

StarkWare

• Starknet Mainnet is now operating on v0.11.1. The next milestone is v0.11.2 — hitting Testnets Mon, then Mainnet soon after.
• Reading Sierra: Starknet’s secret sauce for Cairo 1.0.
• The Starknet Summit happening on August 31, 2023, in the San Francisco Bay Area.
• Starknet is taking over Barcelona.
• The re-launch of the Starknet Toronto meetups.
• 2nd meetup in Mexico.
• Sign up for the Pragma Cairo 1.0 hackathon and do your magic. The hackathon starts on June 12th.
• Twitter Scaces: Chainlink on Starknet, ZK-Rollups & native Account Abstraction with Starknet.
• Prepare for a seismic shift in art, music, and gaming through Starknet’s dynamic NFTs.
• From Solidity to Cairo 1.0 (WIP).
• Ahead of the Curve: Install Cairo 1.0 Alpha and Prepare For Regenesis.
• Cairo on Ethereum L1? A Glimpse into Starknet’s Enigmatic Future.

🚀Powered by StarkWare:

• A continually updated list of projects building on StarkNet.

zkSync

• zkSync reached 1.5M+ unique active addresses.
• In a recent session with Argent zkSync co-founders elaborated on the driving force behind building zkSync Era: Freedom. Highlights from the conversation.
• Entering the zkSync Era — Anthony Rose (Head of Engineering at Matter Labs): Episode 107.
• zkSync x LearnWeb3 DAO Account Abstraction on zkSync.
• Last month LayerZero announced its integration with zksync’s new zkEVM, cygaar deployed a set of contracts that allow you to mint, send, and receive NFTs between ETH and zksync using LayerZero. Here’s how you can play around with those contracts.
• Twitter Space: The New Trend- Developing on ZKsync.
• It seems that zksync Era will soon become the new king of L2 systems.

🚀Live on zkSync

• Gelato is live on zksync on mainnet & testnet with both Gelato Relay & 1Balance.
• SNKRZ joins the zkSync Era ecosystem.
• TinyWorld announced its deployment on zkSyncEra.

ZKSpace

• ZKSwap: A Layer-2 DEX Built on ZK-Rollup Technology: This guide explores ZKSwap, a DEX which uses ZK rollups to boost user experience.

Projects built using StarkEx

dYdX

• Exploring the dYdX Operations subDAO’s near future: The dYdX ecosystem is approaching a critical juncture: the potential launch of dYdX V4 mainnet is approaching, and the initial 6-month term of the dYdX Operations Trust (“DOT”) is set to expire.
• dYdX v4 Technical Architecture Overview: This post presents an overview of the architecture of V4.
• v4 Deep Dive: Indexer: This post presents a deep dive into the Indexer. The Indexer is a read only layer that exists between the chain itself and end users. The Indexer’s purpose is to translate and serve data in an easier-to-use format.
• The dYdX Foundation team is gearing up to attend several upcoming events.
• ‘Weekly Governance Recap’.
• Stay up to date with the latest governance conversations and participate in forum discussions.

Validium

Source.

Projects build using StarkEx

Rhino.fi (previously DeversiFi)

• Fees on rhino.fi: How to make crypto fees simpler, smarter and more transparent.
• Personalize your rhino account with your .zk zkSync Era domain name.
• How to calculate impermanent loss in crypto (with examples).
• AMMs and liquidity pools on rhino.fi: A technical deep dive.
• Announcing the first-ever Sommelier airdrop on rhino.fi.
• What makes the rhino cross-chain bridge unique?

Immutable X

• The Future of Web3 Gaming: Immutable co-founder and President, Robbie Ferguson, reports on the state, trends, and industry insights from the current web3 gaming landscape.
• The Expanding Immutable Gaming Ecosystem: Explore the 150+ games building on Immutable spanning across multiple genres and styles.
• Immutable Games Spotlight: Cross The Ages Goes Mainstream: Explore Cross the Ages and the 150+ other top games building on Immutable.
• Pirates of the Arrland and Immutable: Striking Gold with the First Economy-Driven Web3 MOBA Game: The team behind Pirates of the Arrland, ANFATA Games, brings decades of experience in blockchain and game development. Founded by Marcin Bednarski (Head of Studio) and Dominik Szopa (Web3 Lead), ANFATA Games was built on a shared vision to create exceptional gaming experiences that will captivate many traditional players.
• How To Make (Web3) Games That Don’t ‘Suck’: Why do traditional gamers still think that web3 games suck? How should game developers respond? A panel of industry veterans at Consensus 2023 (by Coindesk), including Immutable CMO, Devon Ferreira, reflect on the current trends and pitfalls of the industry, and explore what the core ingredients of a winning game truly are.
• Meta-X and Immutable: The Rise of Decentralized Competitive Gaming: Dark Machine is a team-based mech shooter game where players team up with next-generation dark mechs to engage in epic battles. Set in 2149 following a global-scale eruption that formed a volcanic mountain line in Japan, opposing teams must battle to gain valuable pod points. In this dominion mode game, players can strategically deploy their mechs to collect randomly spawned energy, destroy enemy mechs, and steal pods from rivals.

MISC

• Distributed Sequencer Technology: proposal for progressive decentralization of L2 sequencers using Distributed Validator Technology.
• Layer N zk fraud proofs: hybrid approach only requires a proof to be generated when there is possibility of fraud.

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