> For the complete documentation index, see [llms.txt](https://tharwa.gitbook.io/tharwa/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://tharwa.gitbook.io/tharwa/the-opportunity/why-other-models-fall-short/fiat-backed-stablecoins.md).

# Fiat-Backed Stablecoins

USDC, USDT, BUSD, these are the giants of stablecoin liquidity.\
They’re fast, trusted (by most), and deeply integrated across every major exchange and blockchain.

But they come with a structural tradeoff: they aren’t built for users**.** They’re built for custodians, issuers, and regulatory optics. They prioritize solvency and access: not transparency, decentralization, or yield.

Tharwa doesn’t compete on custody. It competes on capital design.

### How Fiat-Backed Stablecoins Work

These stablecoins are fully backed 1:1 by fiat held in off-chain bank accounts, money market funds, or short-term government debt.

The issuer:

* Receives user deposits
* Issues an equivalent amount of stablecoins
* Keeps the fiat in reserve (earning interest)
* Offers redemption at par (usually through KYC-gated channels)

Examples:

* **USDC** (by Circle): backed by cash and T-bills, fully reserved
* **USDT** (by Tether): backed by a mix of reserves, with limited transparency
* **FDUSD, GUSD, PYUSD**: variations with different jurisdictions or regulatory wrappers

### Why They Fall Short

#### 1. **Centralized Custody**

User funds are held by private institutions. If those entities freeze, deplatform, or go bankrupt: users are exposed. There's no on-chain collateral visibility beyond what the issuer discloses.

#### 2. **Opaque Yield**

Stablecoin issuers earn billions in interest on reserves (mostly from T-bills). But users holding those stablecoins earn nothing. That value flows entirely to the issuer, not the ecosystem.

#### 3. **Redemption Barriers**

Redeeming at $1 is usually limited to institutions. Retail users often can't redeem directly, especially during stress events: leaving them reliant on secondary markets or DEX arbitrage.

#### 4. **No Capital Efficiency**

Fiat-backed stables are static. You can’t stake them, route them into vaults, or automate them for real yield. They’re a placeholder, not a tool.

#### 5. **Regulatory Surface Area**

These stablecoins are exposed to U.S. and global regulatory changes including freezes, blacklists, or forced depegs. If regulatory risk increases, users may lose access without warning.

### Why Tharwa Is Different

thUSD is:

* **Fully collateralized on-chain** by real assets
* **Non-custodial**, with transparent vault deployment
* **Designed for composability** so users can stake, deposit, earn, and move yield through smart contracts
* **Neutral in structure**, without centralized blacklists or redemption friction
* **Backed by a diversified basket** of RWAs, not a single banking counterparty

Yield flows to users, not to custodians. And capital stays active rather than locked in cash equivalents that only benefit the issuer.