Paul Dowman 🔴✨ pfp

Paul Dowman 🔴✨

@pauldowman.eth

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Paul Dowman 🔴✨ pfp
Paul Dowman 🔴✨
@pauldowman.eth
Remember wagmi? We should bring back that vibe
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Paul Dowman 🔴✨ pfp
Paul Dowman 🔴✨
@pauldowman.eth
I'm hiring for the Proofs at OP Labs, help us build and secure Optimism! Solidity and/or Go. If you think you'd be a good fit get in touch.
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Paul Dowman 🔴✨ pfp
Paul Dowman 🔴✨
@pauldowman.eth
Congrats!
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nixo pfp
nixo
@nixo
Checkpoint #2 is live! Accessible updates of the last 4-5 All Core Dev calls. Pectra is live on mainnet in ~a week, are you caught up on ACD? → Successful Hoodi upgrade → Wen history expiry? → Fusaka scope → EOF removed → New ACD call structure post-Pectra https://blog.ethereum.org/2025/04/29/checkpoint-2
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Paul Dowman 🔴✨ pfp
Paul Dowman 🔴✨
@pauldowman.eth
This is really good, thanks for doing it!
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Paul Dowman 🔴✨ pfp
Paul Dowman 🔴✨
@pauldowman.eth
Another confirmation that general purpose ZK VMs are the future (e.g. RISC Zero, etc). Nobody will write custom circuits. "This is hard to do with rigid zkEVM circuits that hardcode lots of cells and constraints. So we moved to a more general-purpose zkVM architecture - one that’s lighter-weight, extensible, and better suited to proof continuation." https://x.com/Scroll_ZKP/status/1916871844151406649
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Paul Dowman 🔴✨ pfp
Paul Dowman 🔴✨
@pauldowman.eth
5 gigagas for ethereum in 4 years. It’s at least a new difficulty bomb to make increases be the default. Let’s go 📈 https://github.com/ethereum/EIPs/pull/9698
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Paul Dowman 🔴✨ pfp
Paul Dowman 🔴✨
@pauldowman.eth
9/ To sum it up: ✅ 64-bit = more memory ✅ Multithreading = stable GC ✅ MT Cannon = no more memory constraints, even for big blocks And if you like this kind of thing: we're hiring for the proofs team at OP Labs! Get in touch if you think you might be a good fit.
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Paul Dowman 🔴✨ pfp
Paul Dowman 🔴✨
@pauldowman.eth
8/ 🧠 With MT Cannon, multithreading is enabled. That means the garbage collector works → memory is reclaimed → system is stable even on long or heavy runs. More efficient, more robust, more scalable 💪
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Paul Dowman 🔴✨ pfp
Paul Dowman 🔴✨
@pauldowman.eth
6/ 👻 What happens when we don’t have enough memory? If the op-program runs out of memory, the proof fails. And if proofs fail, bad actors can get away with fraud.
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Paul Dowman 🔴✨ pfp
Paul Dowman 🔴✨
@pauldowman.eth
7/ 🧵 And why multithreading? The op-program is written in Go. Go’s runtime uses a garbage collector — but it runs on a separate thread. With no multithreading? 🗑️ GC doesn’t run → memory leaks → crash risk → proof fails.
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Paul Dowman 🔴✨ pfp
Paul Dowman 🔴✨
@pauldowman.eth
5/ 💾 64-bit = no memory limits 🚫 Modern CPUs are 64-bit and can access vastly more memory. By upgrading Cannon to 64-bit, we completely remove the memory bottleneck. More memory = support for larger blocks = more scalability 🚀
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Paul Dowman 🔴✨ pfp
Paul Dowman 🔴✨
@pauldowman.eth
4/ 💡 Why the 64-bit upgrade? The original Cannon emulated a 32-bit CPU. That was a good place to start, but 32-bit CPUs are very memory-constrained.
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Paul Dowman 🔴✨ pfp
Paul Dowman 🔴✨
@pauldowman.eth
3/ So to give op-program a reproducible environment we run it in Cannon, which emulates a Linux environment on a MIPS CPU. 😅
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Paul Dowman 🔴✨ pfp
Paul Dowman 🔴✨
@pauldowman.eth
1/ The @optimism fault proof system got a massive upgrade today: We’re shipping MT Cannon 💥 An upgraded version of Cannon — the fault proof VM — now with 64-bit support and multithreading! 🧵...
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Paul Dowman 🔴✨ pfp
Paul Dowman 🔴✨
@pauldowman.eth
2/ 🤔 What’s Cannon anyway? Cannon is the fault proof virtual machine that runs the fault proof program — “op-program”. And what's op-program? Think of it as a version of Optimism node software that runs in a reproducible way.
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Paul Dowman 🔴✨ pfp
Paul Dowman 🔴✨
@pauldowman.eth
If you like this kind of thing you should know that we're hiring for the proofs team at OP Labs. Get in touch if you think you might be a good fit
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Paul Dowman 🔴✨ pfp
Paul Dowman 🔴✨
@pauldowman.eth
The Boundless decentralized ZK prover market. https://x.com/boundless_xyz/status/1914718088278290704
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Paul Dowman 🔴✨ pfp
Paul Dowman 🔴✨
@pauldowman.eth
Yes.
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Paul Dowman 🔴✨ pfp
Paul Dowman 🔴✨
@pauldowman.eth
https://x.com/beeple/status/1913793532248182941?s=46
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