One-Way Peg
Also known as: One-Sided Bridge, Unidirectional Token Peg, Irreversible Asset Transfer
A mechanism that allows assets to move from one blockchain to another but not back in the opposite direction.
A one-way peg is a bridge or token transfer mechanism that enables users to lock an asset on one blockchain and mint an equivalent representation on another chain—but without the ability to reverse the process. This design is used when creating wrapped assets or transferring value across chains where backward compatibility, trust, or verification is limited. One-way pegs simplify design and security but restrict liquidity movement. They’re often used in testnets, synthetic tokens, or specialized applications where return paths are unnecessary or infeasible.