PANews reported on April 28 that according to the official announcement, OKX will officially launch the SIGNUSDT perpetual contract on the web, App and API at 7:30 pm (UTC+8) on April 28, 2025. The SIGNUSDT contract trading opening time is: 7:30 pm (UTC+8) on April 28.

It is reported that Sign is an on-chain verification infrastructure that enables legal identity, digital contracts, token ownership and other digital information to be verified across borders by governments, financial institutions and individuals. Sign's main revenue-generating product TokenTable supports core functions of the crypto economy, such as token airdrops, unlocking and over-the-counter transactions.