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What Is a ‘State Transition’ in the Context of Blockchain Rollups?

A state transition refers to the process of moving the blockchain's ledger from one valid state to the next by applying a set of transactions. In a rollup, the sequencer batches off-chain transactions and computes the resulting new state.

This new state root is then posted to the Layer 1 chain. The state transition is the change from the old state root to the new state root, which must be verifiable and correct.

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