# 3.2 The Shielded Infrastructure

The Accessth network operates on a system of Shielded Nodes. Unlike public mempools where intents are visible (leading to MEV and sandwich attacks), Accessth intents are encrypted until the moment of inclusion.

Node Architecture:

* Ingress Nodes: Receive encrypted proofs from users. They perform a lightweight validity check to prevent DoS attacks.
* Prover Nodes: Generate the aggregate ZK-proof that bundles hundreds of user intents into a single state update for the Ethereum mainnet.
* Watchtower Nodes: Independent auditors that monitor the integrity of the Liquidity Fog, ensuring that the total Permissions Outstanding never exceeds the Total Value Locked (TVL).

This architecture ensures that "Front-Running" is mathematically impossible, as the content of the transaction is obscured by the ZK-proof until it is already finalized.


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