𝕔𝕣𝕪𝕡𝕥𝕠

onchain
Joined May 2021
Don’t forget to mention the Curve stETH pool being on vyper 0.2.8 in your gratitude journal, anon.
1
18
4,822
A good one from the archives.
Vitalik, just shut up & speak about stuff that you can claim u know a lil about. You have promising Proof of Stake since 2013 & we are still waiting for a system that is scalable, decentralized & secure. But that is impossible as your inconsistent trinity principle proves.
1
32
He managed to bottom tick it again. xitter.cf/Nouriel/status/2071519…
News from Shitcoins Land : Bitcoin’s price is now lower than its 2021 fall peak. So in the last five years the return to Bitcoin has been negative. And 90% of Bitcoin holders bought at a price higher than the current level. So all these shitcoiner suckers have lost their shirt . And losses are much higher in the other top 10 crypto-craps, let alone in 100s of lesser shitcoins that are down down 95% from their peak or worth 0! And even among meme-coins, Fart Coin - down 95% from peak - has done better than crappy Trump coin and Melania coin that have fallen even more. So Trump got to shaft his MAGA meme-loving base too! 🤑🤮💩💩💩🤑🤮
4
a bitfinex chad entered the chat
Can someone walk me through the reason why ETH is behaving relatively strong to every other crypto in existence here?
31
As onchain has heated up again, some essential reading and tools to use in your quest to paper-escape the underlcass:
1
1
73
Hope this helps get you started. Let me know if I should do more of these.
16
The attacker is bridging out his GNO via Relay at a 20% discount. Solvers eating well today.
Unfortunately, there is a hack related to @gnosispay and the "delay module". Please be patient while we try to contain the damage. Rest assured, Gnosis will cover all user losses.
161
the sato hook is _not_ working as intended. `totalMintedFair` and `ethCum` are out of sync due to `exp()` and `ln()` using polynomial approximations. Over time, this caused a ~22% slippage between buys and sells dev should admit it and migrate or just add it to the lore
the curve has fulfilled its initial purpose. it bootstrapped supply by minting sato in exchange for eth at deterministic prices. that work is done. the hook stays online from here as minter + buyer of last resort.
1
116
I may be wrong about exactly why the two values are out of sync, but the cause is definitely due to poor state management
36
Dex aggregators who collect positive surplus are financially incentivized to underquote you and skim the difference when they overdeliver tokens. That's the real issue here, not MEV. Unless you broadcast to the mempool like a caveman.
Replying to @philipliao_
When an aggregator underquotes, this might be worse! On the surface, this doesn't sound bad. Underpromise and over-deliver right? Well... not really. On venues that don't simulate, these quotes didn't appear competitive so they were rarely chosen. But now that most meta aggregators simulate, you will often see an underquoted option at the top. However! With naive simulation an aggregator that underquotes will actually magnify your slippage by the underquoted amount. You will be exposed to way more potential MEV than expected. This can be really bad for your execution quality! Imagine you set a 5bps slippage tolerance and the aggregator underquotes by 4bps. Your slippage tolerance is essentially now 9bps
2
1
184
Which aggregators collects surplus? Almost all of them. Here's a good ref from the matcha meta docs
1
33
Which aggregators are constantly underquoting? @robotevm has the answer. xitter.cf/robotevm/status/204667…
Replying to @robotevm
4/ and it goes both ways. some aggregators underquote you too. they show a worse price than what you actually get after execution. that has its own issues…
1
35
An MEV operator backran this trade to make a 4824 ETH profit after bribing Titan Builder with 13087 ETH. Think both entities are reasonable and would return a good chunk of it to the user. See: 0x45388b0f9ff46ffe98a3124c22ab1db2b1764ecb3b61234e29e5c9732b7fd4ab
Earlier today, a user attempted to buy AAVE using $50M USDT through the Aave interface. Given the unusually large size of the single order, the Aave interface, like most trading interfaces, warned the user about extraordinary slippage and required confirmation via a checkbox. The user confirmed the warning on their mobile device and proceeded with the swap, accepting the high slippage, which ultimately resulted in receiving only 324 AAVE in return. The transaction could not be moved forward without the user explicitly accepting the risk through the confirmation checkbox. The CoW Swap routers functioned as intended, and the integration followed standard industry practices. However, while the user was able to proceed with the swap, the final outcome was clearly far from optimal. Events like this do occur in DeFi, but the scale of this transaction was significantly larger than what is typically seen in the space. We sympathize with the user and will try to make a contact with the user and we will return $600K in fees collected from the transaction. The key takeaway is that while DeFi should remain open and permissionless, allowing users to perform transactions freely, there are additional guardrails the industry can build to better protect users. Our team will be investigating ways to improve these safeguards going forward.
1
1
1
6
945
The plot thickens: the CoW solver that settled this tx usually sends their order flow to mev-blocker, but for some reason did not do it for this order, sending it straight to the mempool. Had they done it, they would have received a ~90% refund from the builder.
1
94
I would expect the more sophisticated generalized frontrunners like c0ffebabe to replicate the TX with some conditional branches pruned so they can bypass access control measures. Still, a cool find from jad!
The @yearnfi hacker used hash-based address checks (not direct address comparisons) to prevent their exploit from being front-run or copied by MEV bots or otherplayers. This was a lesson learned from the Balancer hack,whers others observed and replay, their exploit transaction.
2
210
the multisig tx to increase the @megaeth sale cap increase was ready and fully signed. Chud did the honors to execute it for the team. This is a rookie mistake from the team and a bad look tbh
6
460