The Bitcoin network serves as the ultimate settlement layer for the Merlin Chain network. All original data resides in the Oracle network, with corresponding state roots in the Bitcoin network. Users can retrieve all aggregated transactions on Merlin Chain at any time and use the zk proofs recorded on Bitcoin to verify their authenticity. Merlin Chain employs a fraud-proof mechanism specifically designed for zk proofs to provide the final confirmation on Bitcoin. This process is supported by Bitcoin's robust Proof-of-Work (POW) algorithm, ensuring the security of the Merlin Chain rollup.

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