Declan Fox

Building @LineaBuild

believe in somETHing

[ETHConf @ethconf]

Governance now matters as much as technology in institutional infrastructure. Open source alone is not enough, and code neutrality is what reduces dependency risk and builds long-term trust.

@DeclanFox14 of @LineaBuild and @rojotek of @Consensys on the Main Stage at ETHConf.

[Joseph Chalom @joechalom]

https://t.co/CEhi4vF5rL

[Linea.eth @LineaBuild]

"The biggest anti-pattern today is the belief that institutions still need their own private, permissioned L1"

@DeclanFox14 at @ParisBlockWeek on the Institutional Crypto Stack.

ZK proofs changed what's possible. Banks and FMIs can keep their permissioned setup and still connect to Ethereum, without giving up compliance or privacy.

[Aave @aave]

Leading Ethereum stewards @Consensys and @ethereumJoseph have joined DeFi United with up to 30,000 ETH in financial support for the rsETH recovery effort, with ongoing strategic advisory from @Sharplink.

Their contributions are a substantial component of the broader DeFi United effort to restore rsETH's backing and normalize market conditions, and the recovery would not be progressing as it is without them.

DeFi United.

[Thomas Coratger @tcoratger]

Building a zkEVM from scratch is tough, especially when writing raw arithmetization constraints by hand.

At @LineaBuild, the team built ZK Assembly (zkASM), a custom assembly language to make constraint generation faster and easier.

Here is how it works. 🧵👇

[alain.linea.eth @Alain_Ncls]

The @LineaBuild prover just got cheaper, faster and lighter.
Our cryptography team just released Small Fields.

Switching to 31-bit Small Fields (KoalaBear) + zkASM is a fundamental re-architecture of Ethereum state proving.

→ Proofs are now dramatically faster & lighter
→ RAM footprint drops and prover decentralization becomes realistic
→ We’re one big step closer to real-time finality

No security trade-offs. Just pure cryptographic engineering.

If you’re a builder working on ZK, L2 scaling or decentralized provers, this is the kind of innovation that changes what’s possible.

[Uniswap @Uniswap]

Linea is live across the Uniswap stack

→ Uniswap v2, v3, and v4
→ Uniswap Web App
→ Uniswap API

With support in Uniswap Wallet rolling out now on iOS and Android

[Linea.eth @LineaBuild]

EIP-7702 is live on Linea.

Your existing wallet can now execute smart contract logic, transaction batching, gas sponsorship, session keys, account recovery, without changing your address or migrating to a new account.

[Linea.eth @LineaBuild]

🚨 Yield Boost is now officially live on Linea.

We're converting idle bridged ETH into sustainable ecosystem liquidity:

→ Without new tokens
→ Without rebasing
→ Without renting capital

Here's how it works 🧵

[The Ethereum Economic Zone @etheconomiczone]

Welcome to the Ethereum Economic Zone (EEZ), a framework for synchronously composable rollups.

What does that mean?

One deployment. Shared liquidity. Single transactions across L1 & L2. Identity verified anywhere. Smart wallets connected everywhere. No additional trust assumptions.

This means L2s that are as credibly neutral, economically aligned, and publicly governed as the base layer itself.

EEZ furthers Ethereum as the leading decentralized economy.

[Linea.eth @LineaBuild]

Our cryptographic researcher @alexand_belling revealed yesterday at @eth_proofs that Linea is moving to RISC-V.

After 3 years of directly arithmetizing the EVM, producing a 1000+ page spec and one of the most rigorous proving system in production, we’re changing course.

Here’s why 🧵

[Declan Fox @DeclanFox14]

@odysseas_eth @0xProject 🦾

[joshrudolf.eth @rudolf6_]

1/ How L1 and L2s can build the strongest possible Ethereum

tldr: we should continue to lean into the unique capabilities of each layer, and make sure all users have a clear path to securely and seamlessly benefit from the core properties of Ethereum

[Declan Fox @DeclanFox14]

@patron4eg Correct assumption on the liquidity buffer. Security is a number one priority for Yield Boost hence the cautious rollout. We are also monitoring the staking queue closely.

Sharplink deposits are in weETH so entirely separate to the native ETH balances on LM.

[MetaMask 🦊 @MetaMask]

The $LINEA claim window for MetaMask Rewards has come to a close.

🔥 The remaining 380M tokens that were not claimed will be burned. 🔥

Thank you for participating!

[Brian Armstrong @brian_armstrong]

Stablecoin rules in the UK are being finalized, and are at risk of preventing the UK from being globally competitive in the digital economy.

For example, the Bank of England is proposing a cap on stablecoin holdings for individuals and businesses.

The UK has a long history of being a financial hub. Embracing and encouraging innovation, especially when other countries are moving fast here, is important for maintaining that. The current direction of the rules does the opposite, and will act as an innovation blocker.

If you're from the UK you can sign the petition by @StandWCrypto_UK to set out a pro-innovation strategy for blockchain and stablecoins. Link below.

[Enterprise Ethereum Alliance | eea.eth @EntEthAlliance]

We're thrilled to introduce the EEA Privacy Working Group!

This group brings together industry leaders to provide clear guidance on privacy technologies for enterprises deploying on Ethereum and L2s.

Initial contributors:
> @AppBlockchain
> @Consensys @LineaBuild
> @COTInetwork
> @EYnews (Nightfall)
> @0xPolygon
> @zksync
> @Kaleido_io
> @ethereumfndn

Covering ZK Proofs, TEEs, MPC, Garbled Circuits, these are real solutions for finance, healthcare and supply chains.

[Declan Fox @DeclanFox14]

This much is clear: the future of Trust will be coordinated using EVM

[OpenAI @OpenAI]

Introducing EVMbench—a new benchmark that measures how well AI agents can detect, exploit, and patch high-severity smart contract vulnerabilities. https://t.co/op5zufgAGH

[joshrudolf.eth @rudolf6_]

Announcing the Platform team

a new team at the EF with one goal:

deliver the strongest possible Ethereum platform, where L1 and L2s are best positioned to support users, apps, and all groups building on Ethereum

see more in link below & stay tuned for updates 🫡

[Declan Fox @DeclanFox14]

@tkstanczak Incredible job, Tomasz!