Phil Dayan, smart contract researcher at Cornell Tech, explains how bot operators engage in gas bidding wars on Ethereum to front-run decentralized exchange transactions.
“Subsidize these arbitrage transactions, which often cost thousands and thousands of dollars in fees. Like people are bidding multiple thousands, even tens of thousands in fees on these transactions.”
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More from Phil Dayan
Insight
Dayan: Dominant blockchains are economically incentivized to 51% attack smaller forks
“If you have a fork that's like 10% of the size of a project, and this fork could potentially impact the price of the larger project, it's absolutely in the interest of that larger project to launch attacks on that base layer proof of work vote and do things li…”
Phil DayanFeb 26, 2019▶ 18:15a16z Podcast | Voting, Security, and Governance in Blockchains and Cryptonetworks
Insight
Dayan: Real-world governance mechanisms fail on-chain without assuming rational adversaries
“Your systems need to be strong even in the presence of economically motivated adversaries, and they need to be secure assuming people are rational rather than honest. So we don't get to lean on this sort of honesty that we have in the real world in blockchains…”
Phil DayanFeb 26, 2019▶ 6:58a16z Podcast | Voting, Security, and Governance in Blockchains and Cryptonetworks
AssertionNot checkable as stated
Dayan: Trusted hardware breaks all classical coercion-resistant voting schemes
“Trusted hardware, which is a new technology, Sort of breaks all classical coercion resistance voting schemes in the blockchain world and in the regular election world.”
Phil DayanFeb 26, 2019▶ 21:14a16z Podcast | Voting, Security, and Governance in Blockchains and Cryptonetworks
PredictionNot checkable as stated
Dayan: Dark DAO vote-buying attacks will become realistic nightmare scenarios at scale
“Blockchains today are a drop in the bucket of like the world financial system, and the incentives just aren't there yet. But if we are to use these technologies, and if we are to scale things, I think these are absolutely realistic scenarios and potentially ni…”
Phil DayanFeb 26, 2019▶ 22:41a16z Podcast | Voting, Security, and Governance in Blockchains and Cryptonetworks
Insight
Dayan: Dark DAOs can bribe Proof-of-Stake validators to execute consensus attacks
“So what you can do with a dark DAO is start a staking pool where I say, like, you know, let me do my algorithmic trading and decide what order of transactions makes me the most money. You don't necessarily care if someone who's doing a transaction on a DEX get…”
Phil DayanFeb 26, 2019▶ 27:09a16z Podcast | Voting, Security, and Governance in Blockchains and Cryptonetworks
AssertionNot checkable as stated
Phil Dayan: DEX front-running market is large despite low trading volumes
“So it's actually a, probably a bigger market than you think, even though DEXs have not seen substantial volume.”
Phil DayanFeb 26, 2019▶ 32:13a16z Podcast | Voting, Security, and Governance in Blockchains and Cryptonetworks
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