Blockchain multi-chain cross-chain system and implementation mechanism thereof

Abstract

The invention provides a blockchain multi-chain cross-chain system, which comprises a basic layer, a core layer, a service layer and a cross-chain layer of an original hierarchy of a blockchain, and is characterized in that cryptography, P2P and database technologies are packaged in the basic layer; the core layer is composed of an intelligent contract and a consensus algorithm and is used for realizing main service logic of the blockchain, wherein the service layer packages an application scene and provides an interface interacting with a blockchain for a user, and the cross-chain layer is composed of a cross-chain smart contract and a cross-chain bottom layer contract which respectively comprise a cross-chain token transfer contract, a cross-chain value checking contract, a cross-chain token transfer bottom layer contract and a cross-chain value checking bottom layer contract. The blockchain multi-chain cross-chain system interaction mechanism can support asset transfer and information interaction between heterogeneous blockchains under the condition that no trusted third party exists, interconnection and intercommunication between chains are achieved, the cross-chain interactionmechanism supporting heterogeneous blockchain communication supports cross-chain pass transfer and cross-chain value checking, and a cross-chain pass transfer protocol and a strategy for guaranteeingthe atomicity and security of the cross-chain transaction are provided.

Description

technical field [0001] The invention relates to the technical field of block chains, in particular to a block chain multi-chain cross-chain system and its implementation mechanism. Background technique [0002] With the continuous innovation and continuous development of blockchain technology, the global financial, e-commerce, traceability, digital copyright and other fields are combined with blockchain technology to varying degrees, resulting in "blockchain + industry" new application scenarios. Based on the characteristics and requirements of different application scenarios, most of the fields have built alliance blockchain networks to realize their business logic. Different blockchain networks are isolated from each other, and the barriers to information interaction and business interoperability are high. However, with the diversified development of application scenario requirements, a single blockchain network cannot meet the changing business needs, and cross-chain int...

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Problems solved by technology

[0006] In order to overcome the above defects of the existing technology, this invention proposes a new cross-chain interaction mechanism for the problems of centralization risk, complex implementation, limited application scenarios, and high storage cost in the existing cross-chain technology research. In the absence of a trusted third party, it supports asset transfer and information interaction between heterogeneous blockchains to achieve chain-to-chain interconnection, that is, a cross-chain interaction mechanism that supports heterogeneous blockchain communication. Cross-chain token transfer and cross-chain value check are two operations, and a strategy for ensuring the atomicity and security of cross-chain transactions and a cross-chain token transfer protocol are proposed

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