It is not really on its own blockchain. Tether exists on top of the bitcoin blockchain through the OMNI layer protocol. I discovered this the hard way by tryi

It is not really on its own blockchain. Tether exists on top of the bitcoin blockchain through the OMNI layer protocol. I discovered this the hard way by trying to transfer some Tether once and it was taking forever and I researched why. Bitcoin itself is very slow due to congestion from the silly 1 mb blocksize limit and 10 minute blocks.