Mamy Ratsimbazafy

@mratsim

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297 Followers

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13th AMA from Ethereum Foundation Research → submit questions now, on Farcaster or Reddit → answers roll in tomorrow, Feb 25 at 2pm UTC https://www.reddit.com/r/ethereum/comments/1iw8ln8/ama_we_are_ef_research_pt_13_25_february_2025/ With two AMAs per year since 2019, EF Research (EFR) is committed to transparency. The team is packed with talent. Learn more about the 40 EFR members spread across 6 sub-teams at research.ethereum.foundation :)

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Mamy Ratsimbazafy

At its height, Ethereum Consensys had 10 different clients: Artemis (now Teku), Harmony (merged with Teku), Lodestar, Lighthouse, Nimbus, Prysm, Shasper (dead), Trinity (now pyspec), Yeeth (dead). With Grandine joining later.

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Mamy Ratsimbazafy

Disclaimer, unlike my Devcon 5 talk in Osaka about "Ethereum 2.0 on a Raspberry Pi", I can't promise "Ethereum 3.0 on a Raspberry Pi", but Valida has a 10x base advantage just from its compiler tech, today. And it can be combined with cryptographic advances. 🦇🔊 #homestaking

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Mamy Ratsimbazafy

Reach out if you're interested in extra language support (C++, Go, Java, .Net, Swift, Zig, ...?). We already forked LLVM for 2 languages frontend so what is 5 others ;). We're at Devcon.

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Mamy Ratsimbazafy

Excited about the #beamchain proposal by @drakefjustin! At @lita_xyz we want to make this a reality. We'll test compiling Nim and Rust clients state transition in Valida at first (as we have initial C/Rust support).

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Mamy Ratsimbazafy

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Mamy Ratsimbazafy

Today is my last day at @taikoxyz as zkEng lead / Head of proof systems / Chief Scientist. Between optimizing our own zkEVM, pivoting to zkVMs, adding ZK and SGX multi-proofs, the rise of based sequencing and based preconfirmations, it was a wild ride. Oh and a mainnet baby!

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Mamy Ratsimbazafy

I accelerate Rust code with Nim following ZAL ;), the Zk Accel Layer: https://github.com/mratsim/constantine/pull/308 Compared to Rust frameworks I'm 1.8x to 4.5x faster (Arkworks, Bellman, Halo2, see https://github.com/mratsim/constantine/pull/226 )

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Mamy Ratsimbazafy

Releasing Constantine v0.1.0, the fastest backend for Ethereum cryptography. BLS signatures, EVM crypto-precompiles, KZG polynomial commitments for blobs (EIP-4844). All accelerated, with multithreading support. And the fastest MSM for elliptic curves. https://ethresear.ch/t/releasing-constantine-v0-1-0-a-modular-cryptography-stack-for-ethereum/19990

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Mamy Ratsimbazafy

Finished implement EIP-2537 (BLS12-381 precompiles) with full benches. I think we can bring down gas cost by 2.5x to up to 15x compared to current. Benchmarks done with laptop CPUs from 9 years ago to today and Raspberry Pi 4. https://ethereum-magicians.org/t/eip-2537-bls12-precompile-discussion-thread/4187/76

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Mamy Ratsimbazafy

nitpick, it's an extension field since it's a power of a prime ;)

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Lots of decisions on ACDE today: EIPs 2935 + 3074 included in Pectra, EOF and 7623 on the shortlist. EIP-7667, which proposes snark-friendly gas costs on L1, on the shortlist for the next fork. Changes to the forks' meta specs can be seen here: https://github.com/ethereum/EIPs/pull/8403

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