Juin Chiu (@juin_cc) header
Juin Chiu (@juin_cc) profile picture

Juin Chiu

@juin_cc

Blockchain Dev / Researcher juincc-7196@crossbell

 Taipei, Taiwan
medium.com/@juincc
Joined October 2014
  • Tweets233
  • Following824
  • Followers237
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Photo by Juin Chiu (@juin_cc)Photo by Juin Chiu (@juin_cc)Photo by Juin Chiu (@juin_cc)Photo by Juin Chiu (@juin_cc)Photo by Juin Chiu (@juin_cc)Photo by Juin Chiu (@juin_cc)Photo by Juin Chiu (@juin_cc)Photo by Juin Chiu (@juin_cc)
Solend auditing workshop slides. A good read if you're developing smart contracts on @solana or other blockchains. docs.google.com/presentation…

Solend Auditing Workshop

Solend Auditing Workshop Smashing the lamports for fun and profit JUNE 30 2021 twitter.com/solendprotocol twitter.com/0xrooter

docs.google.com
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At 2021-08-19 12:40 GMT, an attacker attempted to exploit the Solend smart contract. The attempt to steal funds was detected and stopped by the Solend team in time such that no funds were stolen.
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I just saw A LOT of excitement about fast confirmations on newly deployed @Uniswap on @optimismPBC , but how does it really work, and can users trust them? Finally, isn't a single sequencer that provides such confirmations a threat to decentralization? Let's talk it through👇👇👇
Image from Kris Kaczor 🦆⚡️ (@krzKaczor)
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Part two of my @DeribitInsights mini series on rollups is out! The subject? Optimistic Rollup dispute resolution 🏛️ This (admittedly technical) piece builds on part one: insights.deribit.com/market-… For a non-technical intro to rollups, check out my primer: mechanism.capital/rollups-in…
Making Sense of Rollups, Part One: Optimistic vs. Zero Knowledge - Deribit Insights

Making Sense of Rollups, Part One: Optimistic vs. Zero Knowledge - Deribit Insights

“It was the best of times, it was the worst of times.” As it was in Dickens’s retelling of revolutionary Europe, so it is on Ethereum today.

insights.deribit.com
Hasu⚡️🤖 (@hasufl) profile pictureHasu⚡️🤖
@hasufl8 Jul 2021
The ability to challenge fraudulent state transitions is at the heart of the Optimistic Rollup design. In his new article for @DeribitInsights, @benjaminsimon97 compares how the two dominant players, Arbitrum and Optimism, resolve these disputes. insights.deribit.com/market-…
Making Sense of Rollups, Part 2: Dispute Resolution on Arbitrum and Optimism - Deribit Insights

Making Sense of Rollups, Part 2: Dispute Resolution on Arbitrum and Optimism - Deribit Insights

All rollups follow a similar basic architecture and internal logic. Nevertheless, as we saw in the first part of this mini series, the single distinction between Optimistic and Zero Knowledge...

insights.deribit.com
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i've been working on a new financial product: everlasting options perps give traders never-ending futures exposure without the effort, risk, or cost of rolling now, we can do the same for options... and @SBF_Alameda and I have a simple pricing model paradigm.xyz/2021/05/everlas…
Image from Dave White (@_Dave__White_)
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Juin Chiu retweeted
SBF (@SBF_FTX) profile picture
SBF
@SBF_FTX11 May 2021
In general, you can turn a future into a perp by having, by default, positions roll at the market price prior to expiration. Super cool!
Dave White (@_Dave__White_) profile pictureDave White
@_Dave__White_11 May 2021
i've been working on a new financial product: everlasting options perps give traders never-ending futures exposure without the effort, risk, or cost of rolling now, we can do the same for options... and @SBF_Alameda and I have a simple pricing model paradigm.xyz/2021/05/everlas…
Image from Dave White (@_Dave__White_)
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1/ It's high time for @optimismPBC vs @arbitrum. I know you've been waiting for it so let's go!🔥🔥🔥 Long 🧵
Image from Kris Kaczor 🦆⚡️ (@krzKaczor)
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Juin Chiu retweeted
Rafi (@Rafi_0x) profile picture
Rafi
@Rafi_0x2 Mar 2021
1/ As the @optimismPBC team has dropped news that their mainnet launch has been brought forward, I thought it would be useful to go through what the Optimism ETH Layer 2 solution is, how it works, and what it means for #Ethereum...
Image from Rafi (@Rafi_0x)
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Juin Chiu retweeted
Rhino.fi (@rhinofi) profile picture
Rhino.fi
@rhinofi28 Apr 2021
The Ξthereum Layer-2 ecosystem is in supersonic (ultrasound 🦇 🔊) mode and keeps growing exponentially! Congrats to all the awesome builders out there! Who are we missing!?
Image from Rhino.fi (@rhinofi)
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Juin Chiu retweeted
Uniswap (@Uniswap) profile picture
Uniswap
@Uniswap5 May 2021
1/ 🦄 We are thrilled to announce that Uniswap v3 is now live on Ethereum mainnet! app.uniswap.org has been updated to support v3. uniswap.org/blog/launch-unis…
Uniswap Interface

Uniswap Interface

Swap crypto on Ethereum, Base, Arbitrum, Polygon, Unichain and more. The DeFi platform trusted by millions.

app.uniswap.org
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🦄 Uniswap v3 just dropped. It contains some huge ideas—I remember hearing about them from Hayden back in early 2020. Now they’re finally public! These are my first reactions for the effects v3 will have on Uniswap's future. Rough takes right now, but here's a thread. 👇
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Juin Chiu retweeted
nipun.eth (@n1punp) profile picture
nipun.eth@n1punp23 Apr 2021
1/ 🐛 📝 🥞 🆚 2️⃣ 🚨 Smart Contract Bug found in Pancake V2 🚨 🐛: Pancake new router is incompatible with Pancake LP implementation. Users may get __revert__ txs upon __swaps__ due to the bug. Vulnerability was reported to @PancakeSwap team asap. Thread below 👇
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First time sharing at a meetup, awkward but fun.
Taipei Ethereum (@eth_taipei) profile pictureTaipei Ethereum@eth_taipei14 Apr 2021
. @antonttc from @opyn_ shared Opyn V1, Opyn V2 (Gamma), and also had a really great Q&A discussion at the Taipei event today
Image from Taipei Ethereum (@eth_taipei)
Image from Taipei Ethereum (@eth_taipei)
Image from Taipei Ethereum (@eth_taipei)
Image from Taipei Ethereum (@eth_taipei)
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We are all DYING to switch to Layer 2🔥There are lots of promising scaling solutions for Ethereum out there but it's easy to get lost in the hype. That's one of the reasons why we've created L2Beat - analytics for layer 2. Check it out 👉 l2beat.com/ and read on 🧵
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ping.eth (@PingChenTW) profile picture
ping.eth
@PingChenTW16 Mar 2021
Given a transaction only pays miner gas fee when it is not reverted, then no one will need to pay $80 for a failed token swap anymore. ethresear.ch/t/integrate-fla…
Integrate flashbots in DApps to align interest of users and miners

Integrate flashbots in DApps to align interest of users and miners

For your reference, the idea is inspired by this post. Pay with MEV In brief, DApps may “create” MEV on purpose, to pay transaction fees. More specifically, you send a predetermined amount of eth to...

ethresear.ch
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Juin Chiu retweeted
SBF (@SBF_FTX) profile picture
SBF
@SBF_FTX8 Mar 2021
1) A while ago I wrote a post on Sushiswap: teapawt.net/SBF_Alameda/status/130…
SBF (@SBF_FTX) profile pictureSBF
@SBF_FTX2 Sep 2020
1) Yield Farming, Sushi, and Collective Imagination: The Emperor Has no Clothes
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So...about that Furucombo exploit...wanna know how it works? Let's work backward from one of the fund-stealing TXes: etherscan.io/tx/0x5af11a27e9… Attached pic is its execution trace (shoutout to ethtx.info). Notice the nested delegatecalls. (1/8)
Image from Kurt Barry (@Kurt_M_Barry)
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Juin Chiu retweeted
FURUCOMBO (@furucombo) profile picture
FURUCOMBO@furucombo27 Feb 2021
Today at 4:47 PM UTC the Furucombo proxy was compromised by an attacker. We have deauthorized the relevant components and believe the vulnerability to be patched but we recommend users remove approvals out of an abundance of caution.
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Earth, Venus and Jupiter as seen from Mars
Image from Ryan Haecker (@RyanHaecker)
Readers added context they thought people might want to know
This photo is fake. newsweek.com/earth-venus-ju…
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MakerDAO is now earning $40M annually in stability fees! Just wait until we crank up the debt ceilings on LP tokens, it's going to be crazy 🥳
Image from Niklas KunkΞl (@nomos_paradox)
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