Tether is now supported on the Liquid Bitcoin sidechain developed by BlockStream, which can purportedly speed up settlements
Source: https://cointelegraph.com/news/tether-stablecoin-to-run-on-blockstreams-liquid-network-sidechain
Tether Stablecoin to Run on BlockStream’s Liquid Network Sidechain
July 29, 2019
CoinTelegraph