Wrapped tokens are cryptocurrency tokens that represent another asset or cryptocurrency on a different blockchain. This wrapping process allows assets to be used across various blockchain networks. It enhances interoperability and liquidity within decentralized finance (DeFi) ecosystems.
Wrapped tokens function by pegging to an underlying asset at a 1:1 ratio. The original asset is locked in a secure vault. A trusted custodian or a decentralized autonomous organization (DAO) manages this vault. Once secured, an equivalent amount of wrapped tokens is created on the target blockchain.
For example, when Bitcoin (BTC) is wrapped into Wrapped Bitcoin (WBTC) on the Ethereum blockchain, each WBTC is backed by one BTC held in reserve. Users can exchange their wrapped tokens by burning them. This action releases the original asset from the vault.
Native tokens are the original cryptocurrencies on their blockchains, such as Bitcoin on the Bitcoin network or Ether on Ethereum. In contrast, wrapped tokens represent these native tokens on different blockchains.
While native tokens are essential for their respective networks, they do not support interoperability. Wrapped tokens bridge this gap. They allow native assets to be used in multiple blockchain ecosystems, expanding their functionality and use cases.
Wrapped tokens offer several advantages:
While wrapped tokens enhance interoperability, they introduce certain risks: