The SuperBridge consists of various components designed to enable efficient and secure cross-chain transactions. Key among these are the Contracts (Vaults and Controllers), Switchboards, and Hooks.

Table of Contents

Deposit Flow

The deposit flow in SuperBridge is a multi-step process that transfers assets from one chain (Chain A) to your Chain. Here's a breakdown of the steps involved:

1. Users initiate the process by depositing their assets into a Vault contract on Chain A.
2. A messaging layer is used to send a message to your Chain. Depending on the chosen switchboard (verification module) this will be either SOCKET DataLayer or the native messenger (in case of L1 to L2), and verified based on different mechanisms (see Verifications Modules Section).
3. The verified message triggers the Controller contract on Your Chain to mint the corresponding amount of the asset, completing the deposit flow and making the funds available to the user on the destination chain.

<aside> ⚠️ SOCKET contracts can interface with the native messenger, which allows SuperBridge to offer security levels comparable to those of the native bridge. However, it's important to note that SuperBridge operates independently and should not be used concurrently with the native bridge contract.

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Withdrawal Flow

The withdrawal flow in SuperBridge reverses the deposit process, allowing assets to move from Your Chain back to Chain A. Here's how it works:

1. The process begins with the user initiating a burn transaction of the assets on Your Chain through the Controller contract.
2. Similar to deposits, a messaging layer conveys a message back to Chain A. The chosen switchboard (verification module) will either be the SOCKET DataLayer or, for L2 to L1 transactions, the native messenger, with the message verified according to the associated mechanisms. In the case of the native messenger, a challenge period might be required for optimistic rollups.
3. Upon successful verification, the Vault contract on Chain A is instructed to release the equivalent amount of the asset, completing the withdrawal process and making the funds available for the user on Chain A.

Verification modules: Switchboards

Switchboards are verification modules within the SOCKET architecture that are responsible for the verification of packets and messages. The types of Switchboards available are "optimistic", "fast", and "native" Switchboards.

• The "fast" Switchboard is used for faster verification mechanisms with 1/N verification by having all N watchers attest on-chain. More expensive in gas.
• The “optimistic” Switchboard, is cheaper in gas but takes longer since there is a challenge period where N watchers can stop the packet from getting executed