Liquid by Blockstream
https://blockstream.com/liquid/

Rapid, confidential, and secure bitcoin transfers to give traders the liquidity they are looking for. Features include: a)Faster Trading – Near instant bitcoin transfers between exchanges allows your users to take advantage of arbitrage opportunities like never before; b) Enhanced Efficiency – Allow your market makers to improve their capital efficiency by reducing balances held across multiple exchanges; c) Verifiable Sidechains – Every Liquid transaction is real bitcoin, pegged via a sidechain to the Bitcoin blockchain, so you’re always dealing with real, verifiable assets; d) Better Privacy – The Confidential Transactions feature for bitcoin amounts transferred using the Liquid network protects your users against unwanted data analysis and front running; and e) Superb Reliability – Built using the battle tested Bitcoin codebase, the Liquid blockchain preserves the security characteristics of decentralization and trustless transactions that you expect. This will be added to Financial Sources Subject Tracer™. This will be added to Business Intelligence Resources Subject Tracer™. This will be added to Entrepreneurial Resources Subject Tracer™. This will be added to the tools section of Research Resources Subject Tracer™.