USSD is a censorship-free stablecoin that is backed by on-chain crypto (BTC/ETH). It is autonomous, over-collateralized, and anti-inflationary. Nobody can freeze tokens or manage the collateral. The open-source and unchangeable code passed Sherlock and Hacken security audits with a score of 9.3/10. Launched on 12.03.2024 on Arbitrum, USSD's architecture is designed to reach an over-collateralization ratio of 500%, safeguarding the token's value even during significant market downturns.