Which chain is TUSD on?

Excuse me, could you please clarify which blockchain network the TrueUSD, or TUSD, token is currently operating on? I've been following the cryptocurrency market for quite some time, but I'm still unsure about the specific blockchain platform that hosts this particular stablecoin. Given its popularity and widespread adoption, I'm curious to know which chain provides the underlying infrastructure for TUSD transactions. Your expertise in this field would be greatly appreciated in answering this question.