Robinhood Chain live on testnet.
Quick Slots proposed for Hegota.
Stripe supports x402 Payments.
Fusaka audit contest results.
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Listen to this episode from Ethereum News on Spotify. Robinhood Chain goes live on testnet. Carl Beek proposes Quick Slots for Hegota. Stripe supports x402 Payments on Base. And Sherlock shares the Fusaka audit contest results. Read more: https://ethdaily.io/880 Sponsor: Arkiv is an Ethereum-aligned data layer for Web3.
](https://open.spotify.com/episode/0RW6DwEmf6ISZ1rt9HsxAt)
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Robinhood launched the public testnet for Robinhood Chain, it's Ethereum Layer 2 network built on Arbitrum. Developers can now build and test apps ahead of a planned mainnet launch later this year. The testnet is EVM-compatible, supporting existing Ethereum dev tools, with early infrastructure from Alchemy and Chainlink. Robinhood Chain aims to accelerate onchain financial services and tokenized real-world assets (RWAs). The company plans to eventually migrate its 2,000+ tokenized U.S. stocks and equities to the network and is committing $1 million to support developers through the 2026 Arbitrum Open House program.
Ethereum developer Carl Beek proposed including "quick slots" as a non-headliner EIP in the Hegota upgrade. Rather than committing to a fixed slot duration, the proposal introduces variable slot timing infrastructure, enabling slot times shorter than today's 12 seconds. Beek notes that a full move to 6-second slots is unlikely as a headliner alongside FOCIL, so the goal is to reduce slot times as much as possible, given available resources. The proposal seeks to progressively shorten slot times where headroom exists. Shorter slots would significantly improve Ethereum's user experience by enabling faster transaction confirmations, deposits, and payments. They also improve protocol efficiency by tightening DEX pricing, reducing MEV surplus, accelerating sequencing for based rollups, and reducing reliance on preconfirmations.
Stripe, a leading online payments processor, launched support for x402 payments using USDC on Base, enabling developers to charge AI agents directly with just a few lines of code. Using Stripe's standard PaymentIntents API, businesses can bill agents for API usage, MCP calls, or HTTP requests, with agent-specific pricing. Stripe product lead Jeff Weinstein noted that agents require microtransactions, always-on global rails, low latency, HTTP-native flows, strong controls, and fast finality. Alongside the launch, Stripe released an open-source CLI called purl, as well as Node and Python examples to help developers test machine payments. The release is currently available in private preview.
Blockchain security firm Sherlock released the results of its $2 million audit contest for Ethereum's Fusaka upgrade, conducted in collaboration with the Ethereum Foundation. Over 500 security researchers participated, uncovering four high-severity issues alongside several medium and low findings, all of which were fixed before mainnet. No critical vulnerabilities were found, unlocking $500,000 of the prize pool. Activated on December 3, 2025, Fusaka introduced Peer Data Availability Sampling (PeerDAS) to improve scalability and reduce transaction costs. A $250,000 bug bounty remains active post-launch.
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