The Five Slices of Arbitrum

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The L2B team, they do a really rigorous job of examining these systems. And I think they are sort of the most authoritative source about the security or decentralization state of various L2s. So yeah, so there's five slices in this pie. These are different ways in which a technology might make its users vulnerable or might fail to provide enough protection to its users. Each one is rated by L2B as red, yellow, or green.

What did the Arbitrum L2 just unlock with its BOLD release? What stage of L2 is Arbitrum in? What is next for decentralizing the Arbitrum stack? We brought on Ed Felten and Raul Jordan to help answer these questions and much more.

Ed Felten is a Co-Founder of OffChain Labs, the organization that created Arbiturm. Raul Jordan is one of the Co-Founders of Prysmatic Labs, the Ethereum consensus client which not too long ago got acquired by Offchain Labs.

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----- TIMESTAMPS

0:00 Intro 7:30 What is BOLD? 9:20 Are L2s Decentralized? 19:30 BOLD Timeline 23:40 What Does BOLD Solve? 27:15 How Does BOLD Work? 31:35 Why Use BOLD? 38:00 Shared Sequencing 42:30 Why Was BOLD Hard to Build? 48:50 Will BOLD Be Open-Source? 50:00 Are L2s Secure? 52:30 Staking $ARB 1:00:20 Arbitrum's New Tech 1:03:50 Ethereum's Overarching Roadmap 1:06:30 Closing & Disclaimers

----- RESOURCES

BOLD, Permissionless Validation for Arbitrum Chains https://offchain.medium.com/bold-permissionless-validation-for-arbitrum-chains-9934eb5328cc

Ed Felten https://twitter.com/EdFelten

Raul Jordan https://twitter.com/rauljordaneth

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