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Validating Root Bundles
Root bundles instruct the Across system on how to transfer funds between smart contracts on different chains to refund relayers and fulfill user deposits.
This explainer video explains why root bundles are critical to making the Across system work and how they are validated. Root bundles are optimistically validated and ultimately secured by the UMA Oracle. It is recommended that UMA voters and other actors in the UMA ecosystem have an understanding of how Across utilizes the UMA oracle.
Technical Deep dive: Validating an Across V2 root bundle