Sidechains Are Not Layer 2 by Georgios Konstantopoulos (Devcon5)

Fri, Oct 2, 2020, 12:00 AM

Visit the https://archive.devcon.org/ to gain access to the entire library of Devcon talks with the ease of filtering, playlists, personalized suggestions, decentralized access on IPFS and more. https://archive.devcon.org/archive/watch/5/sidechains-are-not-layer-2 In this talk we argue that sidechains are strictly an interoperability protocol, and any attempt at describing them as scalability solutions is misleading. Proof of Work sidechains require each chain to be individually secure, and thus make a double honest majority assumption. Proof of Stake sidechains rely on DMMS-like mechanisms, but even with proper short-long range attack protection they have a different security model to a Proof of Work chain. On the other hand, Layer 2 is a set of mechanisms which allow state to be manipulated more efficiently than the base layer, while inheriting the base layer's security. This is achieved through fraud proofs and client side validation or validity proofs which enforce valid state transitions. Speaker(s): Georgios Konstantopoulos Skill level: Beginner Track: Security Keywords: Layer 2, sidechains, L2, general Follow us: https://twitter.com/efdevcon, https://twitter.com/ethereum Learn more about devcon: https://www.devcon.org/ Learn more about ethereum: https://ethereum.org/ Devcon is the Ethereum conference for developers, researchers, thinkers, and makers. Devcon 5 was held in Osaka, Japan on Oct 8 - 11, 2019. Devcon is organized and presented by the Ethereum Foundation, with the support of our sponsors. To find out more, please visit https://ethereum.foundation/