Mamy Ratsimbazafy 🦇🔊 (@m

Mamy Ratsimbazafy 🦇🔊

3,744 posts

Mamy Ratsimbazafy 🦇🔊

@m_ratsim

Engineer @lita_xyz zkVM | Cryptography | Scaling Ethereum | ex Chief Scientist @taikoxyz, Ethereum Core Dev @ethnimbus

Paris

Joined April 2014

Pinned
Mamy Ratsimbazafy 🦇🔊
@m_ratsim
Jul 6, 2024
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.
Releasing Constantine v0.2.0 (Jan 2025), a modular cryptography stack for Ethereum
From ethresear.ch
21K
Mamy Ratsimbazafy 🦇🔊
@m_ratsim
Feb 4, 2020
The #ethnimbus team is currently meeting in Brussels, playing with the first mobile #Eth2 testnet
GIF
Mamy Ratsimbazafy 🦇🔊
@m_ratsim
Aug 1, 2024
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!
17K
Mamy Ratsimbazafy 🦇🔊
@m_ratsim
Oct 25, 2021
If you are an #eth2 validator. Upgrade your nodes, first thing today. The altair hardfork is literally in 2 days. #ethereum
Mamy Ratsimbazafy 🦇🔊
@m_ratsim
Dec 17, 2023
Unleashing the fastest KZG commitments / EIP-4844 backend! Custom language, custom MSM, custom threadpool, zero dependencies (very important these days). Now comes with Go and Rust bindings! Powered by @nim_lang. github.com/mratsim/consta…
11K
Mamy Ratsimbazafy 🦇🔊
@m_ratsim
May 2, 2024
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 were made with laptop CPUs consuming 15W to 28W from 9 years ago to today and Raspberry Pi 4.
ethereum-magicians.org
EIP-2537 (BLS12 precompile) discussion thread
I finished fully implemented EIP-2537 in Constantine in EIP-2537 - BLS12-381 precompiles for the EVM by mratsim · Pull Request #368 · mratsim/constantine · GitHub and now can provide accurate...
3.2K
Mamy Ratsimbazafy 🦇🔊
@m_ratsim
Apr 25, 2021
Want to learn about #blockchain roots in the 80's, cypherpunks' legacy, why privacy, trust, transparency matter and empowers people vs systems? Here is my presentation for @losaltoshacks 2021, the West Coast largest high school hackathon. github.com/mratsim/talks/…
Mamy Ratsimbazafy 🦇🔊
@m_ratsim
Aug 4, 2024
Weekend coding project for accelerating #cryptography on GPUs: Adding a JIT compiler for @AMD GPUs in Constantine. It works 🔥🔥🔥. github.com/mratsim/consta…
3.3K
Mamy Ratsimbazafy 🦇🔊
@m_ratsim
Oct 15, 2017
1 year ago I learned #ml, now I'm writing my own Tensor library in #Nim. 10x faster than #Julia, 22x than #Numpy: andre-ratsimbazafy.com/high-performan…
Mamy Ratsimbazafy 🦇🔊
@m_ratsim
Feb 13, 2019
Confirmed speaker at #EthCC on #Ethereum 2.0 testing and simulation! :) See you on March 5 #serenity #blockchain @AssethFR
Mamy Ratsimbazafy 🦇🔊
@m_ratsim
Aug 5, 2024
Look Ma! I crashed LLVM, am I a compiler engineer now? github.com/llvm/llvm-proj…
1.1K
Mamy Ratsimbazafy 🦇🔊
@m_ratsim
Mar 30, 2024
⚠️ 🚨 Due to a backdoor found in the xz library, widely used in Linux distributions, in particular which allows SSH remote access on Debian-derived distributions. You should upgrade all your Linux distributions immediately. security-tracker.debian.org/tracker/CVE-20… news.ycombinator.com/item?id=398662…
2K
Mamy Ratsimbazafy 🦇🔊
@m_ratsim
Sep 21, 2020
Replying to @bitfalls and @tezos
The engineers behind looks competent though, met them in Paris, very passionate. Seems like they have a healthy entreprise blockchain services department as they announced a deal with leading bank Société Générale 5 days ago. And SG likes to build everything IT in-house.
Mamy Ratsimbazafy 🦇🔊
@m_ratsim
Jan 11, 2020
My first talk of the year will be at @ParisP2P Festival in 2 hours. "Why mass adoption of P2P tech will come through countries in crisis?". It's open, and in central Paris (Gare de Lyon). See you there #P2P.