Function: updateMptHash(uint16 _sourceChainId, bytes32 _blockHash, bytes32 _receiptHash, address _userApplication)

Used for submitting oracle proofs using the MPT verifiers.

Inputs

• _sourceChainId

  • Control: Fully controlled by caller.

  • Constraints: N/A.

  • Impact: Sent to LZ as the source.

• _blockHash

  • Control: Fully controlled by caller.

  • Constraints: N/A. Assumed to be verified against _receiptHash by the calling function.

  • Impact: Block hash to be delivered.

• _receiptHash

  • Control: Fully controlled by caller.

  • Constraints: Verified with blockUpdater.

  • Impact: Receipt for the block hash.

• _userApplication

  • Control: Fully controlled by caller.

  • Constraints: Must have a valid receiver library.

  • Impact: Used to get ultra light node.