hard20 pts · first answer countslayer-2cryptography

Why ZK rollups still post data

A ZK rollup posts a validity proof to Ethereum for every batch. Why must it also make the transaction data available?

A.Validators cannot check the proof without the raw dataB.The proof only covers signatures, not balancesC.The proof shows the new state is correct, but without the data users cannot rebuild the state to prove their balances and exit if the operator disappearsD.Ethereum charges less gas when data is included

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Why ZK rollups still post data

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