What is Peg-in/Peg-out?

Peg-in and peg-out refer to the process of moving digital assets between separate blockchains. A peg-in involves moving assets from one blockchain to another, while a peg-out refers to returning assets back to the original blockchain. These pegging mechanisms are used on sidechains like Liquid Network, which allow users to exchange BTC from the mainchain for an equivalent asset on Liquid (L-BTC).