DiscoverZero KnowledgeEpisode 179: Diving into Arbitrum’s Optimistic Rollup
Episode 179: Diving into Arbitrum’s Optimistic Rollup

Episode 179: Diving into Arbitrum’s Optimistic Rollup

Update: 2021-05-05
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This week, Anna and James host Ed Felten and Steven Goldfeder, co-founders of Arbitrum, an Optimistic Rollup project born before the term "Optimistic Rollup" was even coined.



Ed and Steven tell Arbitrum’s story, from its beginnings as a chain-agnostic university project in 2014 to become an Ethereum-based Optimistic L2 Rollup solution based on fraud proofs. They cover Arbitrum’s interactive fraud proofs, how they differ from other solutions like Optimism, and how Arbitrum and the Optimistic Rollup helps Ethereum scale.



Here are some links for this episode:








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Thanks to this episode’s sponsor, Aave



Aave is an open source, decentralised non-custodial liquidity protocol on Ethereum.



With Aave, users can participate as depositors meaning they provide liquidity to earn a passive income. or they can also act as borrowers to borrow in an overcollateralized way or undercollateralized way (think: one-block liquidity Flash Loan).



Aave recently deployed a new market on Polygon’s sidechain to let users pay much lower gas fees. Assets can be transferred from Ethereum with the Polygon Bridge and put to use on Aave’s Polygon markets.



Learn more about it here.



So thanks again, Aave!






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Episode 179: Diving into Arbitrum’s Optimistic Rollup

Episode 179: Diving into Arbitrum’s Optimistic Rollup

Zero Knowledge Podcast