# USTB Token

USTB is a fully permissionless, cross-chain, rebasing dollar-pegged stablecoin. 

USTB is a wrapped version of [USDM](https://docs.mountainprotocol.com/reference/usdm-token), with USDM supplying 100% of the backing for USTB.

USDM is backed by Mountain Protocol's reserves of short-duration US Treasuries (T-Bills) having an average duration of less than 3 months or less. [Learn more about USDM.](https://docs.tangible.store/ustb/backing-asset-usdm)

**US Treasuries are considered one of the safest yield-producing, USD-denominated investment options. T-bills guarantee a risk-free yield, backed by the full faith and credit of the U.S. government.**

USTB is an ERC20 rebasing token, with a redemption value pegged at 1:1 to USDM, which in turn has a redemption value pegged at 1:1 for primary customers. Like other fiat-backed stablecoins, we expect USTB to trade \~$1 in the secondary market, a function of buy/sell volume, liquidity depth and arbitrage opportunities.

<table><thead><tr><th width="262">Indicator</th><th>Details</th></tr></thead><tbody><tr><td>Ticker</td><td><code>USTB</code></td></tr><tr><td>Token Type</td><td>ERC-20</td></tr><tr><td>Decimals</td><td>18</td></tr><tr><td>Contract Address</td><td><code>0x83feDBc0B85c6e29B589aA6BdefB1Cc581935ECD</code></td></tr><tr><td>Chains</td><td>re.al, OP, Base, Eth</td></tr></tbody></table>

## Getting USTB

#### Minting

USTB is minted on Ethereum in the Tangible app.

USDM, purchased on [Curve](https://curve.fi/#/ethereum/swap) (Eth) or minted directly from Mountain Protocol is wrapped into USTB. Minting can only be done on Ethereum.&#x20;

Once minting is complete, USTB can be bridged to any of the supported chains via LayerZero where it can be farmed or sold into liquidity pools.&#x20;

#### Buying

Liquidity will be available for USTB on the following chains and exchanges:

| Chain    | Exchange                                |
| -------- | --------------------------------------- |
| re.al    | [Pearl](https://www.pearl.exchange/)    |
| Optimism | [Velodrome](https://velodrome.finance/) |
| Base     | [Aerodrome](https://aerodrome.finance/) |