Cross-chain digital asset transfer method and terminal device

Abstract

The invention discloses a cross-chain digital asset transfer method. By forming a plurality of logical chains on a physical blockchain, a transaction order of each logical chain has a corresponding identifier, so that different logical chains record different types of digital assets, and free transactions can be carried out within the logical chains. At the same time, when a cross-chain transaction is carried out, by constructing a cross-chain transaction order, the input of the cross-chain transaction order includes identifiers of two or more different types of digital assets (different typesof unspent output), and the output of the cross-chain transaction order includes an address for receiving corresponding assets on different logical chains. In this way, according to the cross-chain transaction order, cross-chain joint account transfer is constructed. Therefore, by verifying the cross-chain transaction order and recording the cross-chain transaction order on the physical blockchain, digital asset exchange and transfer across logical chains can be achieved.

Description

technical field [0001] The invention relates to the technical field of block chains, in particular to a cross-chain digital asset transfer method and terminal equipment. Background technique [0002] Blockchain technology is a programmable distributed ledger technology that is jointly maintained by multiple parties, uses cryptography to ensure verifiable transmission and access security, can achieve consistent data storage, cannot be tampered with, and cannot be denied. It can be applied in finance, health care , supply chain, asset management and many other fields. Each chain can represent a special digital asset, so it is a reliable technology for transmitting value. The blockchain based on the UTXO (Unspent Transaction Output) model originated from Bitcoin, but all current blockchains based on the UTXO model are relatively isolated network protocols. Different blockchains run on different computer applications. This hinders the collaborative operation between different ...

AI Technical Summary

Problems solved by technology

The blockchain based on the UTXO (Unspent Transaction Output) model originated from Bitcoin, but all current blockchains based on the UTXO model are relatively isolated network protocols. Different blockchains run on different computer applications. This hinders the collaborative operation between different blockchains, and limits the liquidity and flexibility of transactions between blockchains to a certain extent.

The current cross-chain technology includes Sidechain technology (Sidechain) represented by Blockstream and Rootstock, and the Onchain Atomic Swap mechanism can be used between two different physical blockchains without third-party participation. Trust transactions, which actually use hash time-locked smart contracts to achieve direct digital asset transactions between the two parties without trusting each other, but cannot solve atomic transactions between multiple digital assets concisely and efficiently. For example, the two parties realize atomic transactions between three digital assets, and the implementation method is too complicated

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