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Headlines said Robinhood Chain halted for 14 minutes on Sept 4. Block timestamps say it never stopped, and @arbitrum said the same. What users actually hit: 40 minutes of dropped transactions, ~80% rejected at the peak. We traced it from public data. @RobinhoodCrypto Full deep dive in the comment 👇
Robinhood Chain experienced no downtime. Earlier today, Robinhood Chain experienced batch posting delays due to L1 market blob behavior. Direct user transactions experienced no delays. Some infrastructure providers that rely on Robinhood Chain’s data stream experienced a brief performance impact due to a high number of feed subscribers. Robinhood Chain remains operational.
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This is extremely cool! Try it
Introducing Miden Foundry @0xMiden devs can now preview transactions before they hit the chain. Walnut is building Miden Foundry in partnership with Miden. The first tool, miden call, ships in midenup v1.0.1. Thread time 🧵
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4/ Next, miden send will prove and submit transactions, while --trace will expose the call hierarchy, arguments, and results. We’re also planning a local package registry, fuzz testing, and chain forking—especially important as Miden developers navigate private state.
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3/ Works with both local and remote public contracts: * Local: full dry-run result and state-effect preview, no network submission * Public: reads state from the network, read-only * Requires one local account (miden new-wallet) * miden account --inspect lists callable procedures * miden exec runs MASM scripts
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2/ Why it matters: Miden is a ZK rollup where transactions are proven on-device and can’t be reverted once settled. miden call runs a procedure locally, shows the result and effects, and sends nothing to the network.
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Introducing Miden Foundry @0xMiden devs can now preview transactions before they hit the chain. Walnut is building Miden Foundry in partnership with Miden. The first tool, miden call, ships in midenup v1.0.1. Thread time 🧵
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Walnut retweeted
Ethereum has cast call: dry-run a contract call without sending a tx. @0xMiden now has miden call from @walnut_dev. Same job — run a procedure, see what it returns — plus the Miden-shaped extras: notes, storage maps, vault diffs. Runs on your laptop. Nothing hits the network. First brick of Foundry-like tooling, not the whole toolkit. walnut.dev/blog/introducing-…
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Let's make @ethereum more secure. Only a handful of teams made @thedaofund's shortlist for their new Security Fund. Walnut is one of them. Thank you @argotorg for the collab! Read on below 👇
Onchain security is everyone’s problem and nobody’s job. ETHSecurity Initiatives is how we are changing that. Propose the work. Fund the work. Build the work. initiatives.thedao.fund/
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Try Bread, its good for you 👇 @0xMiden making moves, exciting times ahead!
Privacy made simple. Early access 👉 miden.xyz/bread
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centaur's been core to how we operate at @walnut_dev - excited to get 2.0 into the mix. will share more on our setup soon.
Announcing Centaur 2.0! Centaur is frontier, agentic infrastructure that you own. Centaur is like Claude Tag, but open source and on steroids. Centaur 2.0 can connect to everything you have access to, and can reason over it next to where you work, either in Slack, Discord, Teams or in your local Codex or Claude Code via an MCP. But context isn't useful if it can be accessed by anyone, so we rebuilt Centaur from the ground up for security. Centaur obviously doesn't have access to secrets because we're leveraging egress proxies. Centaur 2.0 takes that a step further enabling administrators to configure who can access what from where. This means that Centaur can have access to private information that you normally wouldn't feel comfortable giving it access to (e.g. DMs or sensitive channels and docs) but only expose it to authorized principals. It also means you can add Centaur to external channels and leverage it as a virtual colleague that doesn't live only in your Slack, for example, but also your Slack Connect channels! This is extremely powerful as we start moving to a world where agents cross organizational boundaries. Also in case anyone's wondering, yes we rewrote it in Rust! Centaur is now way way more stable at durably executing threads, and its workflow engine is now based on Absurd. We have been operating Centaur since January, officially launched and Open Sourced it in May, and now we're full speed towards making it the #1 open source agentic infrastructure. To succeed at that, I'm thrilled to welcome @mslipper to the @paradigm team who will be leading all our Applied AI work, while continuing to maintain and extend Iron Proxy as the leading secure secret access for agents. Welcome Matt, it's an honor after all these years of knowing you! Read the full blogpost below, and apply to join our team!
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🌰🔩 Starknet Nuts & Bolts 🔩🌰 This week for @Starknet, we kept Walnut's execution stack in sync with the Starknet network, and extended the Simulation API. More below 🧵
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This week in our @0xMiden work: 🔶 Contract verification Web UI live 🔶 Debug info type preservation 🔶 Advice input support for miden call 🔶 Playground hit 41k tutorial starts Details below 🧵
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This quarter in our @0xMiden work: 🔶 Full transaction debugging shipped end to end 🔶 midenup started to take shape across calling, testing, and verifying contracts 🔶 Contract verification became shared infrastructure 🔶 Playground got more dialed in Breakdown below 🧵
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Replying to @zkGaylord
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We're partnering with @argotorg to implement the @ethdebug standard inside the official @solidity_lang compiler. solc will emit the debug metadata it's been missing. walnut.dev/blog/argot-announ…
We teamed up with @walnut_dev to implement the @ethdebug standard inside the @solidity_lang compiler. The 2025 Solidity Developer Survey shows the demand clearly. This year we're tackling long-standing issues head on: alongside stack-too-deep, we're now taking on better debugging infrastructure.
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This week in our @0xMiden work: 🔶 Client-side DAP integration for IDE debugger extensions 🔶 New testing helpers in miden-testing 🔶 Verification service compilation API and registry now in Playground and Developer Console Breakdown below 🧵
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This week in our @0xMiden work: 🔶 Progress on enum and u256 debug types in the VM 🔶 verification api-registry deployed to production 🔶 Docs updates for the verification registry Thread below 🧵
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🌰🔩 Starknet Nuts & Bolts 🔩🌰 This week for @Starknet, we tightened the documentation and improved how verified contract sources are displayed. More below 🧵
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