mateocesaroni

Blockchain Security Researcher @OpenZeppelin 🇦🇷

[mateocesaroni @mateocesa2]

My first content on smart contract security.
An interesting re-entrancy case in a message-passing cross-chain setting.
https://t.co/pKu55S5Bmi

[mateocesaroni @mateocesa2]

@OpenZeppelin @ethconf Where’s your suit @Pedroais2 ?

[OpenZeppelin @OpenZeppelin]

Recent posts by Manuel Aráoz on AI and DeFi security have been widely circulated, and customers have asked whether they reflect OpenZeppelin's position. They do not.

Manuel co-founded OpenZeppelin and served as the company’s CTO until 2019 when he left the company.

[OpenZeppelin @OpenZeppelin]

https://t.co/nNqezM8s8l

[galo @gtocagni]

sovereign af ❤️‍🔥🤘

el 10/04 sale @settle_io, un primer paso para recuperar la soberanía como individuos

optimista del futuro,

gracias por todo el feedback y apoyo

[KoalateeCtrl @KoalateeCtrl]

The KZG polynomial commitment scheme is widely used in zkSNARKs, and it’s also a key building block in blockchains for data availability sampling and proto-danksharding.

Heard the term before but never really understood how it actually works?

In Episode 4 of my series 🎬 I break it down step-by-step.

Check it out here:
https://t.co/EOoqBIwDww

Special thanks to cryptographer and friend Vesselin Velichkov (@vesselinux) for helping with this content, particularly with the definition and explanation of the hiding property 💡

[OpenZeppelin @OpenZeppelin]

https://t.co/yW00RmRBZQ

[mateocesaroni @mateocesa2]

This is 🔥

[KoalateeCtrl @KoalateeCtrl]

🚀 Kicking off my Zero Knowledge Proofs series!

🎬 Episode 1 is live: Dive into zkSNARKs, proof systems, and the fundamentals. No heavy math required.

💡 Start from 0 → 1 and build the intuition you need to actually understand ZK proofs.

👉 Watch here: https://t.co/Rj4CMfsE9f

[mateocesaroni @mateocesa2]

@nntaleb Countability allows you to index the balls by a sequence and use series that converge

[mateocesaroni @mateocesa2]

@nntaleb The idea to prove that its measure is 0 is the following:
Since the set is countable, you can cover each point x_n with a ball of radius r_n, and you choose the r_n so that the sum of all the radii is less than epsilon/2. Since epsilon is arbitrary, the measure of your set is 0

[OpenZeppelin @OpenZeppelin]

The Balancer v2 exploit highlights how complex protocol evolutions can introduce new risks.

OpenZeppelin audited earlier versions of the v2 codebase, prior to the introduction of the attack vector that was later exploited.

Our analysis and lessons for the community ↓
https://t.co/eMWTW3NVqV

[galo @gtocagni]

Crypto is hitting the streets of Buenos Aires

This Devconnect, you’ll be able to pay for coffee, meals, and more directly with crypto. no KYC, no commissions , no fiat conversion. Pure P2P

After years of building infrastructure, it’s finally time: crypto goes mainstream

[mateocesaroni @mateocesa2]

@fede_intern @class_lambda You can’t crash the OZ team

[mateocesaroni @mateocesa2]

@hoshiyari420 @OpenZeppelin It was great sharing an audit with you! Keep killing it

[mateocesaroni @mateocesa2]

@shunduquar Impossible to answer if we don’t know the c3 linearization chain

[mateocesaroni @mateocesa2]

@shunduquar next method in the C3 linearization

[Lucas Janon @LucasJanon]

Lanzamos planes personalizados en Pulso.

Cómo lo armamos? Simple, divertido y parecido a cuando jugabas a Los Sims.

Hace dos meses decidimos lanzar la app ofreciendo solamente planes prearmados por nuestro equipo, pero mucha gente que está yendo al nutricionista y tiene un plan nos pidió poder elegir sus calorías y macronutrientes.

No es una interfaz fácil de resolver, porque tenés cuatro datos (calorías, proteína, carbos y grasas) que son dependientes entre sí. Las apps que probamos meten cuatro inputs uno al lado del otro y arreglate para que el número te de bien.

Nosotros lo armamos como cuando asignás puntos a tu personaje en un juego, vas sacando puntos de un lugar, agregás a otro, y a medida que cambiás las calorías cambian los gramos de cada macronutriente proporcionalmente. Por otro lado, siguiendo nuestra filosofía de dar libertad pero cuidando al usuario, pusimos límites en la cantidad de calorías y porcentajes de macros que podés elegir, según tu sexo, edad, cantidad de ejercicio, etc.

Les dejo un videíto, es la versión inicial así que cualquier feedback para ir mejorándola, suma!

[Defi Security Summit @summit_defi]

NEXT UP — June 18th, 5PM UTC🚨

Webinar on Web 3 Security 
in Argentina with:
@fiorescan of @certora
@mateocesa2 of @OpenZeppelin
@mattaereal of @theredguild
@0xJuani of @Balancer
@Skeletor_Space of @wonderland
and @NathanSexer of @EFDevcon

+ announcements coming…👇

[mateocesaroni @mateocesa2]

@banditx0x When audit together?

[OpenZeppelin @OpenZeppelin]

In response to the the WazirX, Radiant, and Bybit exploits, @pcaversaccio developed the Safe Hash Preview script, helping users to verify Safe transactions before signing.

We’ve just launched a user-friendly interface to make it easily accessible: https://t.co/4gWPxEUh6Q

[mateocesaroni @mateocesa2]

🚀

[galo @gtocagni]

At @OpenZeppelin, we're building The Castle HackerHouse in BA 🇦🇷

stay tuned 👀🏰✨