Overnight.fi USDT+ wallet

What is Overnight.fi USDT+ (USDT+)?

USDT+ is a rebasing dollar token from Overnight.fi. It is built to sit at one dollar, and instead of the token's price drifting above par, the protocol adjusts holders' balances: once a day the supply is recalculated and every wallet's number goes up accordingly. Your balance therefore changes without any incoming transaction, which is the single most disorienting thing about holding it. There is nothing in your transaction history to explain the new figure, and nothing is missing.

That behaviour has a practical consequence beyond the surprise. Contracts and interfaces that were not written for rebasing tokens handle them badly, which is why a wrapped, non-rebasing form of USDT+ exists for use inside other protocols. If you are simply holding, the plain rebasing token is the one you want; if you are depositing somewhere, check which of the two the destination expects.

USDT+ is issued separately on BNB Smart Chain and on Arbitrum. The deployments are independent: minting, redeeming and the daily rebase all happen per chain, so the two balances never combine even though your address looks the same on each.

Supported networks in Tangem (2): Arbitrum One, BNB Smart Chain.

In the app each chain's USDT+ appears on its own line with its own current figure, and the network a payment goes out on is named on the screen you confirm before the card signs - read it, because the address alone will not tell you. Holding a token that quietly rewrites its own balance is easier when the wallet just shows you what the chain currently says.