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Anton Bukov (e/acc)🦇🔊 Profile picture
@k06a
Sep 13, 2020 • 4 tweets • 3 min read • Read on X
Our small investigation thread (with @semenov_roman_) on @bZxHQ "duplication incident".

We compared source code on @etherscan before and after the fix applied:

etherscan.io/address/0xde74…

etherscan.io/address/0xa7eb…

diffchecker.com/qzTJ7Xee
We realized that initial source code works incorrectly when "_from" equals to "_to" and leads to funds duplication. We found 9 exploiting transactions on $iETH lending token with 101778 $iETH tokens duplicated (worth ~4.7K $ETH) // @DuneAnalytics
Attacker address: etherscan.io/address/0xd1c0…

Stolen funds (~4.7K $ETH):
etherscan.io/address/0xe925…

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More from @k06a

Anton Bukov (e/acc)🦇🔊 Profile picture
Oct 15, 2024
1/n
Any veTokenomics fans out there? Huge shoutout to @CurveFinance and @newmichwill for this groundbreaking innovation. Now, get ready for eveTokenomics — an exponential approach where tokenization remains robust, enabling farming and any ERC20-compatible on-chain mechanisms.
2/n
Core issue with linearly decaying balances: over time, participant proportions shift, especially noticeable as lock time becomes zero. eveTokenomics solves this with exponential balance adjustments, keeping participant ratios stable forever.
3/n
Imagine all participant balances decreasing by 0.01% per second. In this setup, balance ratios between participants remain stable over time and almost never hit zero (thanks to 18 decimal places).
Read 6 tweets
Anton Bukov (e/acc)🦇🔊 Profile picture
Oct 25, 2021
1/ In recent months, I've been asked a lot about a cross-chain future for @1inch. Dozens of projects are actively working on bridges, and some of them have applied for 1inch grants or just asked for my advice/opinion. This thread reveals my thoughts on the subject.
2/ First of all, @1inch already has CEXes' and other blockchains' liquidity bridged by PMMs (professional market makers) via limit order protocols. When users fill their orders, they immediately arbitrage on CEXes to make a profit. Huge trade on @1inch could shift prices on CEXes
3/ Next, @1inch users currently enjoy atomicity of their transactions. This means a tx can have only 2 outcomes once it's been mined: successfully executed or reverted. Bridging assets takes time and involves at least 2 chains, and by its nature it couldn’t be atomic in any sense
Read 6 tweets

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