Гаманець для Unagii Tether USD

What is Unagii Tether USD (UUSDT)?

Tether sent into Unagii's USDT vault comes back as UUSDT, a share of the pool that stands in for the deposit. The share count is set when you deposit and stays there; the vault contract keeps the ratio that decides how much USDT the share returns on the way out. So the figure in the wallet not moving is the design, and redemption is the only moment it turns back into USDT.

USDT brings one quirk that catches people at both ends of this. Its contract refuses to change an allowance that is already non-zero, so an approval sometimes has to be set back to zero before a new one can be granted. If a deposit or a withdrawal step fails without an obvious reason, that stale allowance is the usual culprit rather than anything on the vault's side. Everything else is standard Ethereum plumbing: ETH pays gas for the approval, the deposit and the exit, and UUSDT itself moves like any other ERC-20, carrying the redemption right with it.

Supported networks in Tangem (1): Ethereum.

From deposit to withdrawal there is nothing to sign, so the card can go back in the safe. Tangem queries Ethereum for the balance whenever the app is opened, and the card only has to reappear for the transaction that closes the position. Storage that asks nothing of you in between is well matched to a receipt token you intend to ignore.