CommerceBlock Introduced Lightning Latch Swap Protocol for Mercury Layer

"A latch transfer enables a statecoin to be transferred on condition of the successful payment of a Lightning network invoice. It can be used for the sale of a statecoin UTXO for an arbitrary amount of bitcoin in a private and non-custodial way without counterparty risk."

https://www.nobsbitcoin.com/mercurylayer-lightning-latch-swap-protocol/