A novel post-quantum settlement layer, Lattice, has been introduced as a peer-to-peer electronic cash system designed to thrive in the era of quantum computing. By integrating three distinct defense mechanisms, Lattice aims to ensure the security and resilience of its network. Notably, it utilizes RandomX CPU-only proof-of-work to achieve hardware resilience, while also implementing LWMA-1 per-block difficulty adjustment to mitigate vulnerabilities such as the Flash Hash Rate issue. This approach enables Lattice to maintain a secure and stable network, even in the face of potential quantum computing threats. The development of Lattice is particularly significant in light of the looming threat of quantum computing to current cryptographic systems1. As the timeline for cryptographic migration narrows, the urgency to adopt post-quantum solutions like Lattice increases, making it a crucial consideration for practitioners seeking to future-proof their systems.