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Overview

The OPinit Bridge is an implementation of the optimistic rollup bridge, implemented as two Cosmos SDK modules; the OPchild Module and the OPhost Module.

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OPhost Module

The OPhost Module is integrated into the Initia L1 chain. This module is responsible for:

• Bridge Management: Creating, updating, and managing bridges between Initia L1 and rollups.
• Output Proposal Handling: Managing and finalizing L2 output proposals.

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OPchild Module

The OPchild Module acts as a counter-party to the OPhost Module and is integrated into all Interwoven Rollup implementations. This module is responsible for:

• Operator Management: Adding, removing, and managing operators for a given rollup.
• Bridge Message Execution: Processing messages received from the Initia L1.
• Oracle Updates: Managing oracle price feed updates relayed by the OPinit Executor.

Actions related to both of these two modules are normally handled by the OPinit Bot Executor.