• EF introduces the Ethereum Interop Layer.

• Revolut integrates Polygon PoS.

• SP1 Hypercube proves 99.7% of L1 blocks.

• MegaETH announces its Frontier launch.

Arkiv is an Ethereum-aligned data layer for Web3. Arkiv brings the familiar concept of a traditional Web2 database into the Web3 ecosystem. Find out more at Arkiv.network

The EF introduced the Ethereum Interop Layer (EIL), a proposal to make Ethereum’s L2 ecosystem feel like a single unified chain, without adding new trust assumptions. While rollups have increased scalability, they’ve also created fragmentation across multiple chains, asset versions, bridges, and UX complexity. EIL aims to allow users to sign once for cross-chain actions, with wallets automatically handling routing, asset location, gas, and settlement across L2s. EIL is built ERC-4337 account abstraction and the principles of the trustless manifesto. The proposal compares EIL to HTTP’s role in the early Internet: a unifying layer that makes many independent systems feel like one seamless experience.

Revolut, a Europe-based neobank, integrated Polygon PoS to power low-cost stablecoin payments, crypto trading, and POL staking within its fintech app. Over 14 million crypto users across 38 countries can now move money across borders with low fees and near-instant settlement through Polygon’s rails. Revolut users can send and receive USDC and USDT on Polygon PoS, pay with stablecoins using the Revolut crypto card, trade and stake POL, and off-ramp directly to fiat. Polygon boasts over $3.5 billion in stablecoin supply and recently underwent its Rio upgrade, boosting throughput to 5,000 TPS.

Succinct announced that its SP1 Hypercube zkVM can now prove 99.7% of Ethereum L1 blocks in under 12 seconds, and 95.4% in under 10 seconds, using only 16 NVIDIA RTX 5090 GPUs. The milestone comes after six months of deep optimizations across the prover, executor, and cluster orchestration. SP1 Hypercube also brings formal verification of all RISC-V constraints. Ethereum’s endgame is to introduce zkEVM proofs at L1, allowing validators to verify succinct proofs instead of re-executing blocks. ZK-fying the L1 enables horizontal scaling to 1 gigagas/second and near-instant rollup interoperability. SP1 Hypercube will be open source and available on the Succinct Prover Network.

MegaETH announced Frontier, its mainnet beta, launching in early December 2025 and running for one month. Designed for early adopters, Frontier will showcase MegaETH’s real-time, performance-focused blockchain that leverages Ethereum security with support for forced inclusion from day one. No incentives will be live during the initial beta phase.

• ACDE #225 canceled this week

• Balancer publishes post-mortem

• Clarity Act as soon as December

• SEAL introduces certifications

• 0xBow raises $3.5m

• Kraken raises $800m

• Obex raises $37m

• ETHDenver 2026 applications

• Privy LATAM

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