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Jason-W123 committed Dec 27, 2022
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`l1 confirmation checker` is a simple demo of Arbitrum's transaction finality checker (used to check if transaction submitted to l1 or not).

It calls precompile `NodeInterface` to check it related l1 transaction.
It calls precompile `NodeInterface` to find information about an L1 transactions that posted the L2 transaction in a batch.

It has 2 function, first is `checkConfirmation` which you can use to check if your l2 transaction is confirmed on L1 or not, second is `findSubmissionTx` which can be used when your L2 transaction is confirmed on L1, you can call it to find what the L1 submission transaction is.

See [./exec.js](./scripts/exec.js) for inline explanation.

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