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Scalable Onchain Verification for Authenticated Data Feeds and Offchain Computations

696 views · Published 26 November 2017 · 19:20 · Indexed 29 October 2026

Channel: Ethereum Foundation · 2017 · Science & Technology

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https://archive.devcon.org/archive/watch/3/scalable-onchain-verification-for-authenticated-data-feeds-and-offchain-computations

Ethereum smart contracts live like in a walled garden and they cannot fetch offchain data by themselves. One approach to securely feed offchain data into smart contracts is to provide attestation-backed data authenticity proofs that anybody can verify to ensure that the data-transport-layer is safe. By leveraging some new techniques, it is possible to do an effective onchain verification: the smart contract receiving the data can easily verify its authenticity onchain at a negligible cost and with a minimum amount of data.

Speaker(s): Thomas Bertani
Skill level: Intermediate
Track: Developer Infrastructure


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