Lyov Hambardzumyan

Security Researcher | Solidity Dev | Economics & Business Grad | 📈 Turning blockchain problems into economic opportunities

[Lyov Hambardzumyan @0xlyov]

@0xSkylice @cantinaxyz 🦾🦾

[Lyov Hambardzumyan @0xlyov]

@0xSkylice @M3talDrag0n @cantinaxyz Good job🌪️

[Cantina 🪐 @cantinasecurity]

The judges have decided: the results of the @colorpool_xyz competition are in. 🪐

Top ranked researchers:

🥇 Metaldragon & Skylice (tied): $4,791.94
🥈 WaffleWizard: $4,691.34
🥉 @trachevgeorgi: $1,178.04

Thank you to everyone that participated. Full leaderboard below.

[Aram Kocharyan @bot_insane]

@trainprotocol's Solver is the first open-source Solver for both EVM and altVM (live on mainnets). It also has some good first issues if you want to get involved. 👇

[Lyov Hambardzumyan @0xlyov]

@Jeyffre @RareSkills_io Glad to help!

[Lyov Hambardzumyan @0xlyov]

I just read @RareSkills_io article on ‘Storage Slots of Dynamic Types’ and noticed a discrepancy in how nested arrays are packed.

The example suggests that six elements fit in one slot, but they occupy two slots in practice.

[Lyov Hambardzumyan @0xlyov]

Let me know if I’m missing anything 🥲

[Lyov Hambardzumyan @0xlyov]

As shown in Remix, the numbers actually occupy two storage slots instead of being packed into a single slot.

This contradicts what the article claimed about filling a slot before moving on to the next.

[Lyov Hambardzumyan @0xlyov]

@zdravkohristov0 View functions cannot modify the state, whereas pure functions cannot even read it. In this scenario, the function only works with in-memory data.

This is an interesting case because I can’t recall encountering anything similar in production code.

[Officer's Notes @officer_secret]

Gm!

If your project requires a military-grade level pentest, I recommend @hexens

Seriously.

[ddimitrov22 @ddimitrovv22]

Studying this article and bug is a great way to learn more about Merkle trees and bit lengths in a real-world example.

This attack vector can be hard to understand just based on theory.

https://t.co/SQ0BXNjHRp

[naiive @naiivememe]

Current situation of Crypto Market

[hexens @hexens]

If you’re in Denver, join Hexens for a chill side event away from the chaos.

Enjoy real talks with top builders, security experts, and cocktails 🍸

📍When: Friday, February 28 (8–11 PM MST)
📍Where: Denver, CO (register for exact location)

Register here: https://t.co/3em1BUhjnh

Hope to see you there!

[Lyov Hambardzumyan @0xlyov]

OOPS🤭

[Lyov Hambardzumyan @0xlyov]

@ustas_eth good job!

[Lyov Hambardzumyan @0xlyov]

I recently needed a custom tx.origin for some Foundry tests

After an unexpectedly long debugging, I discovered that tx.origin defaults to a special address

Then I revealed that the prank can accept a second param to set tx.origin

It’s uncommon but important!

[Lyov Hambardzumyan @0xlyov]

@adeolRxxxx @BengalCatBalu maybe 😄😄

[hexens @hexens]

Hackers are evolving.

@kemmio breaks down the biggest threats in Web3, why the @xyz_remedy CTF mattered, and how AI is reshaping the battlefield.

Read the full interview: https://t.co/lasu3v9tV1