> For the complete documentation index, see [llms.txt](https://zether-usd.gitbook.io/zether-usd/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://zether-usd.gitbook.io/zether-usd/usd.z-coin-architecture.md).

# USD.Z Coin Architecture

#### 3.1 Multi-Chain Deployment

USD.Z is launched natively on multiple chains, avoiding bridges and maintaining asset integrity.

* **BSC**: Low fees, large DeFi presence
* **Polygon**: Scalability, mainstream accessibility
* **Arbitrum**: L2 scalability and ecosystem growth
* **Base**: Coinbase ecosystem integration
* **Avalanche**: Subnet support and fast finality

#### 3.2 Reserve Management

Reserves are publicly auditable through proof-of-reserve mechanisms and periodic third-party attestations. On-chain backing includes major stablecoins and is diversified to mitigate custodial risk.