How Bridges Work

This lesson is for enrolled learners

A bridge exists to solve a problem that is easy to state and hard to solve safely: two blockchains, by design, cannot natively read or act on each other's state. Ethereum L1 has no built-in way to know what happened on Arbitrum, and Arbitrum has no built-in way to know what happened on Base, without some intermediary system relaying and……

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