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add view function of proveBatchState #884

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Merged
anylots merged 2 commits into from
Feb 25, 2026
Merged

add view function of proveBatchState #884

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1411a2f
add view function of proveBatchState
anylots Feb 12, 2026
a756c4e
add testcase of proveCommittedBatchState
anylots Feb 24, 2026
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11 changes: 11 additions & 0 deletions contracts/contracts/l1/rollup/Rollup.sol
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Original file line number Diff line number Diff line change
Expand Up @@ -668,6 +668,17 @@ contract Rollup is IRollup, OwnableUpgradeable, PausableUpgradeable {
return batchDataStore[batchIndex].finalizeTimestamp > block.timestamp;
}

/// @dev proveCommittedBatchState verifies the ZK proof for a committed batch.
function proveCommittedBatchState(bytes calldata _batchHeader, bytes calldata _batchProof) public view {
// get batch data from batch header
(uint256 memPtr, bytes32 _batchHash) = _loadBatchHeader(_batchHeader);
// check batch hash
uint256 _batchIndex = BatchHeaderCodecV0.getBatchIndex(memPtr);
require(committedBatches[_batchIndex] == _batchHash, "incorrect batch hash");

_verifyProof(memPtr, _batchProof);
}

/**********************
* Internal Functions *
**********************/
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42 changes: 42 additions & 0 deletions contracts/contracts/test/Rollup.t.sol
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Expand Up @@ -587,6 +587,48 @@ contract RollupCommitBatchWithProofTest is L1MessageBaseTest {

assertEq(rollup.lastCommittedBatchIndex(), 1);
}

/// @notice Test: proveCommittedBatchState proves the state of a committed batch.
function test_proveCommittedBatchState() public {
_mockVerifierCall();
_mockMessageQueueStalled();

// Warp time to simulate stall (> rollupDelayPeriod)
hevm.warp(block.timestamp + 7200);

bytes32 prevStateRoot = bytes32(uint256(1));
bytes32 postStateRoot = bytes32(uint256(2));
bytes32 withdrawalRoot = getTreeRoot();

IRollup.BatchDataInput memory batchDataInput = IRollup.BatchDataInput({
version: 0,
parentBatchHeader: batchHeader0,
lastBlockNumber: 1,
numL1Messages: 0,
prevStateRoot: prevStateRoot,
postStateRoot: postStateRoot,
withdrawalRoot: withdrawalRoot
});

bytes memory batchHeader1 = _createMatchingBatchHeader(1, 0, prevStateRoot, postStateRoot, withdrawalRoot);

hevm.prank(alice);
rollup.commitBatchWithProof(
batchDataInput,
batchSignatureInput,
batchHeader1,
hex"deadbeef" // Non-empty proof required
);
// Verify batch was committed (finalization happens separately via finalizeBatch)
assertEq(rollup.lastCommittedBatchIndex(), 1);
// finalizeTimestamp is set to block.timestamp, allowing immediate finalization
// but lastFinalizedBatchIndex is not updated until finalizeBatch is called
assertEq(rollup.lastFinalizedBatchIndex(), 0);

bytes
memory proof = hex"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";
rollup.proveCommittedBatchState(batchHeader1, proof);
}
}

contract RollupCommitBatchTest is L1MessageBaseTest {
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