0xa34da86c…24fbsent to0xb024ac5a…a016·#24,371,321·0xc97a24d0…60f94d
# Add Nexus U.S. Dollar (USDX) to Earner List
## Description
USDX is a fully U.S. Dollar-backed stablecoin designed to serve as the primary settlement and accounting dollar for a specialized financial exchange and application ecosystem on Nexus Layer 1. Its design creates structural, non-speculative demand: USDX balances accumulate naturally through trading activity, margin, settlement, and application treasuries rather than short-term incentive campaigns.
### Extension Details
- **Extension Name:** Nexus U.S. Dollar
- **Ticker:** USDX
- **Initial deployments:** Ethereum Mainnet, Nexus Mainnet
- **USDX** is:
- A dollar-denominated stablecoin fully backed by U.S. dollar assets
- Issued and redeemed via the M0 reserve infrastructure
- Designed for predictable value, high liquidity, and institutional compatibility
USDX uses the JMI (Just Mint It) extension, a fork of the MYieldToOne architecture. All yield accrues to a single Yield Recipient wallet controlled by Nexus Foundation, which we will distribute to users through the Global Yield Distribution System (see below).
## Roadmap for Adoption
USDX is designed around the following properties:
### A. Structural Demand
USDX is the default dollar inside the Nexus ecosystem, and the Nexus Exchange:
- Trading collateral and margin
- PnL, fees, and funding flows
- Liquidation and insurance buffers
- Application treasury and vault accounting
As activity grows across the Nexus Exchange (a perpetual futures DEX) and Layer 1, USDX balances grow mechanically. All liquidity in the Exchange will be denominated in USDX.
### B. Cooperative Distribution Model
USDX does not compete with existing stablecoins at the edges:
- USDC, USDT, and other stablecoins remain on/off-ramps and liquidity rails
- USDX becomes the internal unit after capital enters into Nexus Exchange
This approach reduces fragmentation and allows USDX to absorb and retain flows from all kinds of users, rather than fight for initial distribution.
### C. Clear Adoption Strategy
Nexus has designed a protocol-native adoption strategy to accelerate USDX usage across applications: A builder flywheel powered by reserve yield.
The **Global Yield Distribution System (GYDS)** makes USDX adoption economically compelling for apps:
- GYDS allocates a portion of Nexus’ realized reserve yield to applications that host and retain USDX balances from users
- apps that retain more USDX TVL from their users earn more USDX yield
- the system is designed to reward user and TVL retention over spikes
The system aligns application incentives with USDX adoption through an automatic system, supporting durable TVL growth driven by real usage rather than promotional activity.
### D. Verifiable Finance and M0
Nexus is actively considering ways to integrate zero-knowledge and verifiability to strengthen the entire M0 ecosystem, leading by example with USDX. We will be exploring a proof of reserves system with select issuers.
## Security and Compliance
* USDX uses M0's standard JMI extension architecture with zero modifications to the core contract logic. The JMI framework has been audited as part of M0's core infrastructure.
* The USDX contract includes freeze functionality for AML/sanctions compliance. We maintain the ability to freeze addresses as required by regulatory obligations.
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