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YouTube

DORA - Distributed Oracle Agreement with Simple Majority

Ethereum Engineering Group via YouTube

Overview

Watch a technical presentation exploring the DORA protocol, a novel approach to distributed oracle networks that feed off-chain information to blockchains. Learn how this protocol achieves distributed agreement with only an honest simple majority of nodes, rather than the traditional supermajority requirement. Discover the key insight that oracle network nodes typically receive values in close proximity, enabling the definition of agreement distance and leveraging state machine replication services. Explore the protocol's asynchronous nature and built-in fallback mechanisms, along with simulation results using real-world exchange data that demonstrate its ability to form coherent clusters and operate efficiently with smaller network sizes. Understand how this innovation allows for better horizontal scaling while maintaining Byzantine fault tolerance up to 1/2 fraction of nodes.

Syllabus

DORA: Distributed Oracle Agreement with Simple Majority

Taught by

Ethereum Engineering Group

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