Since many years, cross-chain asset transfer is a well-known concept. It was almost developed as soon as several blockchains began to be developed. The idea gained widespread acceptance. In its initial application, the transfers focused on swaps between the chain’s native assets and tokens, which led later to several decentralized exchanges. The utility of exchange is great, but the ability to transfer assets without revealing their identity is also important.

Currently, 400,000 (BTC() and growing, are available and can be used for transactions other than the Bitcoin blockchain. Ether has a large amount (ETHOther networks have also carried ). These are sometimes referred to as Wrapped tokensTo distinguish them from one another when they are on the same network. Bridges are used to transfer native assets between older, more well-established blockchains and newer ones.