WO2020042928A1

WO2020042928A1 - Block chain network system

Info

Publication number: WO2020042928A1
Application number: PCT/CN2019/101042
Authority: WO
Inventors: 白杰; 吴先锋; 李冬云
Original assignee: 白杰
Priority date: 2018-08-28
Filing date: 2019-08-16
Publication date: 2020-03-05

Abstract

The present application provides a block chain network system, comprising: a male chain, a female chain and a parallel chain; wherein the male chain is a point-to-point network structure composed of multiple nodes and can provide a unified interface specification to outside; the female chain is a block chain network accessed to the male chain; the parallel chain is composed of a part of nodes in the male chain or the female chain; the node in the parallel chain is provided with a female chain access interface to complete butt jointing of the male chain and the female chain in a bridging manner; and the parallel chain has a complete function of the female chain and can store all information of the female chain. According to the present application, a part of nodes in the female chain or the male chain are transformed into the parallel chain such that the female chain and the male chain or two female chains can be butt-jointed to finish the cross-chain transaction. The parallel chain can prevent from a large scale transforming to the female chain, thereby solving the problem of the existing block chain network not implementing communication and interaction with other block chain networks.

Description

Blockchain network system

This application requires the submission of the China Patent Office on August 28, 2018, application number 201810986825.3, the invention name as "blockchain standard application model and its application method", and the submission of the China Patent Office, application on December 7, 2018 The priority of the Chinese patent application with the number of 201811496863.7 and the invention name of "a blockchain network system" is incorporated herein by reference in its entirety.

Technical field

This application relates to the field of network transaction technology, and in particular, to a blockchain network system.

Background technique

Blockchain technology is a decentralized system idea that can create a relatively objective anti-repudiation digital environment through public consensus. Blockchain technology can ensure that network information cannot be changed once it is released. For example, if a transaction occurs in the blockchain network, nodes in the blockchain network will record the content of the transaction in the generated block, and Block data is broadcast throughout the network, and other nodes in the network store the block data synchronously or asynchronously to form an unchangeable blockchain. The application of blockchain technology depends on the blockchain system. The blockchain system includes various forms according to its application field and the size of the decentralized network. For example: the Bitcoin network and the Ethereum network are the main representatives, which are public chains applied to the entire network; there are also industry chains applied to a specific field; alliance chains applied to a specific region, and so on.

It can be seen that the existing blockchain network systems are designed for a certain application scenario. There is no unified and effective mechanism for communication and interaction between different chains (blockchain platform), which results in the island effect of data and applications. In practical applications, multiple blockchain platforms provide different sets of capabilities to achieve different transactions, but due to data and application island effects, the capabilities that different chains can provide are limited to this field. At the same time, due to the endogenous nature of the blockchain platform, the work and content completed are based on in-chain scenarios and in-chain applications, and rarely support external transactions, that is, it is difficult for existing blockchain systems to achieve cross-blockchain Platform (cross-chain) and cross-domain (cross-domain) transactions.

In order to achieve communication and interaction between different blockchain networks, and to complete cross-chain transactions, existing blockchain systems can provide relay services, such as BTC Relay, which carries out the Bitcoin blockchain and Ethereum smart contracts. Following the solution. However, the existing solutions are one-to-one implementation of relay services, and the types and types of transactions in reality are diverse, resulting in the types and types of cross-chain transactions. For each type of cross-chain transaction, a one-to-one relay scheme is difficult to implement. Therefore, how to provide a unified blockchain system to support cross-chain transactions and complete communication and interaction between different chains. It has become an urgent technical problem in this field.

Summary of the Invention

This application provides a blockchain network system to solve the problem that the existing blockchain network cannot implement communication and interaction with other blockchain networks.

In one aspect, the present application provides a blockchain network system including a public chain and a parent chain accessing the public chain, wherein the parent chain includes a third-party blockchain that is accessible to the public chain and has a proprietary interface; The system further includes: a parallel chain composed of some nodes in the public chain and / or the parent chain;

The parachain node is configured to perform all data operations of the public chain node and has all the functions and information of the public chain node; the parachain node is also configured to be able to perform all data operations of the parent chain node and has the parent chain All functions and information of the node;

The parallel chain node is configured with a public link port and a proprietary interface of the parent chain; and the parallel chain performs a docking operation between the public chain and the parent chain in a bridged manner.

Optionally, the nodes on the parallel chain are composed of some public chain nodes and are formed by elections within the public chain;

Alternatively, the nodes on the parallel chain are composed of a part of the parent chain nodes recommended by the parent chain and confirmed by the public chain;

Alternatively, part of the nodes on the parallel chain is composed of public chain node elections, and the other part is composed of parent chain nodes recommended by the parent chain and confirmed by the public chain.

Optionally, the parallel chain is a multi-level network structure composed of multiple nodes.

Optionally, the parallel chain is a mixed-chain network structure composed of multiple nodes, and the nodes in the parallel chain connect multiple parent chains or multiple public chains in parallel.

Optionally, after the parent chain accesses the public chain, an interface node is preferentially selected, and / or a node adjacent to the interface node is used as a parallel chain node.

On the other hand, this application also provides a blockchain network system, which includes a chain group composed of multiple third-party blockchain networks, and a public chain distributed in the chain group, the third-party blockchain The network has its own proprietary interface; it also includes: a parallel chain composed of some nodes in the public chain and / or a third-party blockchain network;

The parallel chain is arranged between the public chain and the accessed third-party blockchain network, or between any two interconnected third-party networks;

The parachain nodes are configured to be able to perform all data operations of the public chain nodes and have all the functions and information of the public chain nodes; the parachain nodes are also configured to be able to perform the connection of third-party blockchain nodes. All data operations, with all functions and information of connected third-party blockchain nodes;

The parachain node is configured with a public link port and a third-party blockchain network proprietary interface; and the parachain completes the public chain and the third-party blockchain, or two third-party blockchain networks in a bridged manner Docking operation between.

Optionally, the blockchain system further includes an industry chain and an alliance chain that meet the specifications of the public link interface;

The industry chain and alliance chain access the public chain through nodes in the public chain; the industry chain and alliance chain have independent distributed storage functions, transactions, and accounting functions.

Optionally, the blockchain system further includes a sub-chain created based on a public link interface specification;

All or part of the nodes in the sub-chain originate from the public chain, or the nodes of the sub-chain have the same interface specifications as the public-chain nodes; the sub-chain has distributed storage functions, transactions, and accounting functions that are independent of the public chain .

Optionally, the information stored by the public chain node includes public chain transaction information, public chain contract information, public chain data storage index information, public chain receipt record information, public chain status record information, and transaction result index information.

Optionally, the public chain contract information is transaction information generated based on a smart contract provided by the public chain;

The smart contracts provided by the public chain include third-party blockchain network registration, registration, and cancellation contracts, transaction service contracts, value conversion contracts, and data storage contracts.

As can be known from the above technical solutions, this application provides a blockchain network system, including: a public chain, a parent chain, and a parallel chain. Among them, the public chain is a point-to-point network structure composed of multiple nodes, which can provide a unified interface specification to the outside. The parent chain is a blockchain network connected to the public chain. A parachain is a point-to-point network composed of some nodes in the public chain or the parent chain. The nodes in the parallel chain are provided with the access interface of the parent chain to complete the connection between the public chain and the parent chain in a bridged manner. Complete functions, and can store all information on the parent chain. In this application, by transforming some nodes in the public chain or the parent chain into parallel chains, the parent chain and the public chain, or two parent chains can be docked, and the data between different blockchains can be bridged by the parallel chain. And information can be transmitted to complete cross-chain transactions. Parallel chains can avoid large-scale transformation of the parent chain, and solve the problem that the existing blockchain network cannot communicate and interact with other blockchain networks.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to explain the technical solution of the present application more clearly, the drawings needed to be used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, without any creative effort, Other drawings can be obtained from these drawings.

FIG. 1 is a schematic structural diagram of a parallel chain-based blockchain network system of the present application;

FIG. 2 is a schematic flowchart of a cross-chain transaction of this application;

FIG. 3 is a schematic flowchart of generating a blockchain by a node of this application;

4 is a schematic flowchart of a node generating blockchain data when applying for cross-chain transactions;

FIG. 5 is a schematic diagram of data transfer of a parallel target blockchain of the application target;

FIG. 6 is a schematic structural diagram of another parallel chain-based blockchain network system of the present application.

detailed description

The embodiments will be described in detail below, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following examples do not represent all implementations consistent with this application. These are merely examples of systems and methods consistent with some aspects of the application as detailed in the claims.

In the technical solution provided in this application, a blockchain network refers to a point-to-point network with a decentralized application architecture. The blockchain network can perform distributed storage, public consensus, digital encryption, transaction accounting, and verification. That is, the blockchain network is a trading platform that covers distributed technology, cryptography, P2P network architecture, and various consensus algorithms that may be applied.

In this application, the blockchain or blockchain data refers to the accounting information generated based on the transaction information when a transaction occurs in the blockchain network, that is, multiple transactions constitute one block of data, and multiple blocks of data form one. Blockchain with timestamp. Blockchain networks include nodes that establish peer-to-peer network connections with each other. Each node is configured with a corresponding consensus mechanism, such as a smart contract, and has sufficient computing power to perform transaction verification and accounting procedures. The nodes also have an interface specification that conforms to a certain unified standard to achieve access to more nodes or other types of blockchain networks through the interface specification.

In the technical solution provided in this application, the public chain, the parent chain, and the parallel chain include multiple nodes, and each node can initiate a transaction and receive a transaction result. Among them, transactions that occur between different blockchain networks are called cross-chain transactions. For example, a transaction is initiated by a node in the parent chain, and the object of the transaction is a node in the public chain, or the transaction is initiated by a parent chain. Is another parent chain.

The first aspect, referring to FIG. 1, is a schematic structural diagram of a parallel chain-based blockchain network system of the present application. It can be known from FIG. 1 that the parent chain provided by the present application includes a public chain and an access to a public chain, wherein the parent chain includes a third-party blockchain that is accessible to the public chain and has a proprietary interface; the system further includes : A parallel chain composed of some nodes in the public chain and / or the parent chain; the parallel chain nodes are configured to be able to perform all data operations of the public chain nodes and have all the functions and information of the public chain nodes; The parachain node is also configured to be able to perform all data operations of the parent chain node and has all the functions and information of the parent chain node; the parachain node is configured with a public link port and a proprietary interface of the parent chain; and the parachain The docking operation between the public chain and the parent chain is completed in a bridged manner.

The public chain described in this application is a point-to-point network structure composed of multiple nodes, and each node has a distributed storage function and transaction and accounting functions; the nodes on the public chain provide a unified interface specification to the outside. The parent chain has independent distributed storage functions, transactions, and accounting functions. The parent chain includes third-party public chains, third-party industry chains, third-party alliance chains, and private chains that can access the public chain.Parallel chains are composed of public chains and / Or some nodes in the parent chain; the parallel chain completes the docking of the public chain and the parent chain in a bridged manner; the parallel chain has the complete function of the parent chain and stores all the information on the parent chain; Access interface of the chain.

In this application, the public, parallel, and parent chains mentioned refer to different blockchain networks that comply with blockchain technology. Unless otherwise stated in this application, the public chain, parent chain, and parachain refer to the corresponding networks, that is, the public chain network, the parent chain network, and the parallel chain network. Each blockchain network can serve as an independent development platform and provide corresponding transaction verification and accounting services within its network. Among them, the public chain definition and specifications have standard interfaces and methods to facilitate effective docking of other blockchains, such as the parent chain. The public chain in this application has the ability to support cross-chain intermediation, as well as the ability to provide decentralized applications and smart contracts.

In addition to recording its own blockchain information, the public chain can also be used to store the information summary of the corresponding cross-chain transaction, that is, the transaction summary. Record the relevant content of cross-chain transactions by formatting transaction data. At the same time, in order to reduce the need for distributed storage capacity on the public chain, when the public chain records certain information, it can also perform secondary processing on the third-party blockchain information through a specific compression algorithm. By way of example, the block data formed and stored in the public chain can include the following: block identifiers (such as serial numbers, timestamps, block hash values, and previous block hash values), block ownership (that is, block producers) ), Other information of the block (such as random value, difficulty value and additional information, etc.), block weight, information summary (such as transaction tree, status tree, receipt tree, data tree, etc.), transaction costs, rewards, size, etc.

Further, in the blockchain network system provided by the present application, the information stored by the public chain nodes includes: public chain transaction information, public chain contract information, public chain data storage index information, public chain receipt record information, and public chain Status record information and transaction result index information. The public chain contract information is transaction information generated based on smart contracts provided by the public chain; the smart contracts provided by the public chain include third-party blockchain network registration, registration, and cancellation contracts, transaction service contracts, and value conversion contracts And data storage contracts.

In this application, the parent chain refers to the blockchain network connected to the public chain network. The public chain provides the basic platform. The parent chain serves as the access network. There can be multiple parent chains connected to the public chain and each has its own Features and services. The block chain network connected to the public chain can also be a block chain network based on public chain network standards and interface specifications, that is, it can directly communicate with the public chain network and connect services. The blockchain network connected to the public chain can also be an independent third-party blockchain network, such as the existing blockchain network Bitcoin, Ethereum, etc., or industry chains and alliance chains developed by certain industries. Even private chains built to meet certain service needs. These existing blockchains, industry chains, alliance chains, and private chains generally cannot directly trade with each other or even with the public chain network. Therefore, in this application, the public chain can be connected with other chains that cannot be directly traded. network of.

The parallel chain can be composed of some nodes in the public chain network or the parent chain network. The parallel chain can bridge the public chain and other networks that cannot be directly traded. In this application, for networks that cannot be directly traded, each blockchain network connected to the public chain network corresponds to a parallel chain, and the parallel chain has the complete function of the corresponding blockchain network, and can be used in the corresponding blockchain network. Transactions are bridged to the public chain network. Therefore, in the technical solution provided in this application, the parallel chain may be determined as a mirror image of the corresponding blockchain network, and for convenience of description, the corresponding blockchain network is referred to as a parent chain. In this application, the parachain is composed of some nodes in the public chain network, and these nodes are also nodes in the parent chain, so that transactions between networks that cannot be directly traded are completed.

In some embodiments provided in this application, the nodes on the parallel chain are composed of some public chain nodes, which are elected by the internal public chain; or, the nodes on the parallel chain are recommended by the parent chain and confirmed by the public chain. Or a part of the nodes on the parallel chain is elected by the public chain node, and another part is composed of the parent chain node recommended by the parent chain and confirmed by the public chain. Further, after the parent chain accesses the public chain, an interface node is preferentially selected, and / or a node adjacent to the interface node is used as a parallel chain node.

In practical applications, when a blockchain network is connected to the public chain network, the public chain can first perform an election process, and the election process can determine which nodes in the public chain serve as parachain nodes. In the election of parallel chain nodes, the public chain nodes can be preferentially selected to connect neighboring nodes of the blockchain network nodes to avoid sequential data transmission on multiple nodes and improve the efficiency of data transmission. In this embodiment, the nodes on the public chain are used as the parachain nodes, so that the parachain nodes can be directly configured with the public chain interface specifications and smart contracts, without the need for large-scale transformation.

If the parachain node is the one recommended by the parent chain, the recommended node can be verified through the public chain. The main verification contents include whether it supports the configuration of smart contracts, whether it has the ability to synchronize data conversion, and whether it has sufficient hardware configuration. After the verification of the public chain, the recommended nodes must also be transformed in accordance with the interface specifications of the public chain to adapt it to the form of data transmission of the public chain and possess the data relay functions provided by the public chain. Through the parallel chain node selection method of parent chain recommendation and public chain verification, it is possible to achieve the docking between the public chain and the parent chain by transforming some nodes in the parent chain, so that cross-chain transactions can be performed.

In addition, in several special application scenarios, for example, when there are fewer nodes in the public chain and redundant nodes in the parent chain, you can set the parallel chain nodes to one part from the public chain node and another part from the parent The way of chain nodes, so as to avoid excessive occupation of the computing resources of the public and parent chains.

In order to adapt to the current network form of the blockchain, in some embodiments of the present application, the parallel chain is a mixed-chain network structure composed of multiple nodes, and the nodes in the parallel chain connect multiple parent chains or multiple nodes in parallel. Public chain. Since the parachain acts as a bridging blockchain in practical applications, in order to simplify the network deployment process, the number of nodes on it will not be large. Therefore, in this application, the nodes in the parachain support multiple parent chains connected in parallel. And public chain.

Therefore, the public chain in this application can provide cross-chain relay, complete transaction verification, data certification, asset transfer, and smart contract execution. The public chain's unified external interface specifications enable other blockchain networks to quickly access the public chain network. The public chain also provides the basic blockchain platform capabilities, which is to quickly complete the deployment and verification of the scheme, and to complete the distributed storage and accounting procedures in the public chain network. In addition, as a basic platform, the public chain can also provide public development functions, thereby completing the collaborative development and deployment of multiple parallel chain smart contracts at one time.

In the practical application of the above-mentioned blockchain system, to complete cross-chain transactions, a cross-chain transaction is first performed between the parent chain and the public chain, that is, the parent chain as the transaction initiator first initiates the transaction. If the final transaction target is On the public chain, the transaction results are returned directly through the public chain, as shown in Figure 2. This application completes cross-chain transactions according to the following steps.

S11: In the parent chain as the transaction initiator, the transaction node creates a cross-chain transaction;

S12: The transaction node sends the cross-chain transaction to the parallel chain;

S13: The parallel chain synchronizes the cross-chain transaction and sends it to the public chain;

S14: The public chain returns the transaction result to the parallel chain according to the received cross-chain transaction;

S15: Parachain converts the transaction result and sends it to the transaction node to complete the transaction.

It can be seen that, for cross-chain transactions between the parent chain and the public chain, since only the information exchange and data circulation between the two blockchain networks are involved, cross-chain transactions are relatively simple. In the above steps, the parallel chain's synchronous conversion of cross-chain transactions mainly includes transforming the information structure or data structure, for example, generating block data that conforms to the public chain storage specifications based on the block data in the parent chain.

For transactions carried out in the blockchain network system provided in this application, verification and storage need to be performed on the two blockchain networks bridged by parallel chains at the same time, so as to form two complete blockchains containing transactions, that is, performing accounting procedures . Among them, as shown in FIG. 3, for the transaction occurring in the public chain, the blockchain network system executes the following program steps:

S21: The node acting as the transaction initiator generates block data according to the actual transaction information;

S22: broadcasting the generated block data to a node serving as a transaction target, and broadcasting to a neighboring bookable node serving as a transaction initiator node, the bookable node is a node randomly selected from the public chain nodes;

S23: The accountable node that has received the block data executes the accounting procedure according to the block data and continues to broadcast to other accountable nodes to form a complete blockchain data.

For cross-chain transactions that occur in the blockchain network system, as shown in FIG. 4, the blockchain network system executes the following program steps:

S31: In the parent chain, the node acting as the transaction initiator generates the parent chain transaction data according to the actual transaction information;

S32: Broadcast the generated transaction data to the parent chain verification node, and the node generates block data and broadcasts it to the nodes in the parallel chain;

S33: The nodes in the parallel chain determine the nodes that are the target of the transaction according to the data of the parent chain, and initiate transactions in the public chain according to the transaction rules of the public chain to form complete blockchain data.

In the above steps, in order to reduce the occupation of storage space in the parallel chain or the public chain, the blockchain data stores summary information of the blockchain data based on the parent chain.

Further, as shown in FIG. 5, for cross-chain transactions that occur in the blockchain network system, if the node that is the target of the transaction is a parallel chain node corresponding to the target parent chain, that is, between the public chain and the target parent chain There are also parallel chains between them, and the blockchain network system executes the following program steps:

S41: The parachain node as the target of the transaction stores the blockchain data;

S42: The parachain node that is the target of the transaction initiates transactions in the target parent chain according to the blockchain data and the transaction rules of the target parent chain to form complete blockchain data that conforms to the target parent chain.

In the second aspect, as shown in FIG. 6, the blockchain network system provided in this application may further include a chain group composed of multiple third-party blockchain networks, and a public chain distributed in the chain group, where Each said third-party blockchain network has its own proprietary interface. The blockchain network system also includes a parallel chain composed of some nodes in the public chain and / or a third-party blockchain network.

The parallel chain is arranged between the public chain and the accessed third-party blockchain network, or between any two mutually connected third-party networks. That is, in practical applications, parachain is not limited to the application of data synchronization conversion and transmission between the public chain and the third-party blockchain network, but also can be applied to any two interconnected third-party blockchain networks. Data synchronization and transfer.

Similar to the application mode between the public chain and the parent chain, the nodes of the parallel chain are configured to be able to perform all data operations of the public chain nodes and have all the functions and information of the public chain nodes. The parachain nodes are further configured to be able to perform all data operations of the connected third-party blockchain nodes, and have all the functions and information of the connected third-party blockchain nodes. The parachain node is configured with a public link port and a third-party blockchain network proprietary interface; and the parachain completes the public chain and the third-party blockchain, or two third-party blockchain networks in a bridged manner. Docking operation between.

It should be noted that, for the above scheme, if the two-party blockchain network on which the parallel chain is bridged is a public chain and a third-party blockchain, the data synchronization conversion method and the node determination method are parallel to the public chain and the parent chain. The chain works the same way. At this time, the parachain nodes are configured to be able to perform all data operations of the public chain nodes, and have all the functions and information of the public chain nodes.At the same time, the parachain nodes are further configured to be able to execute connected third-party blockchain nodes. All data operations of the company have all the functions and information of connected third-party blockchain nodes.

If the two-party blockchain network that establishes a bridge in parallel is two third-party blockchains, then the parallel-chain nodes are configured to perform all data operations of one connected third-party blockchain node, with one connected All functions and information of a third-party blockchain node; on the other hand, it is configured to be able to perform all data operations of another connected third-party blockchain (first blockchain) node, with another connected All functions and information of the three-party blockchain (second blockchain) node. The synchronous transformation direction of data is also from one blockchain network to another.

For the parachain nodes, if the two-party blockchain network that establishes the bridge in parallel is two third-party blockchain networks, the nodes on the parachain are part of the first blockchain node and pass through the first blockchain network. Or, the nodes on the parachain are composed of some second blockchain nodes recommended by the second blockchain network and confirmed by the first blockchain network; or, among the nodes on the parachain, One part consists of the first blockchain node election, and the other part consists of the second blockchain node recommended by the second blockchain and confirmed by the first blockchain. Further, after two third-party blockchain nodes establish a connection with each other, an interface node is preferentially selected, and / or a node adjacent to the interface node is used as a parallel chain node.

Further, if the two-party blockchain network that establishes the bridge in parallel is two third-party blockchain networks, the parallel chain may also be a multi-level network structure composed of multiple nodes, and the multi-level network at the parallel chain nodes In the structure, the node acting as the upper level controls the bridge operation as the node acting as the lower level. Similarly, the parallel chain may also be a mixed chain network structure composed of multiple nodes, and the nodes in the parallel chain are connected in parallel to multiple third-party blockchain networks.

In some embodiments of the present application, the blockchain system further includes an industry chain and an alliance chain that meets the specifications of a public link port; the industry chain and the alliance chain access the public chain through nodes in the public chain; the industry chain and The alliance chain has independent distributed storage functions, transactions and accounting functions. The blockchain system also includes a sub-chain created based on a public link interface specification; all or part of the nodes in the sub-chain originate from the public chain, or the nodes of the sub-chain have the same interface specifications as the public chain nodes; the The sub-chain has distributed storage functions, transactions, and bookkeeping functions that are independent of the public chain.

In practical applications, the public chain network is the basic platform deployed on the entire network, and its node interfaces can access multiple blockchain networks, such as industry chains, alliance chains, and private chains based on public link interface specifications; public chain networks The node interface is also connected to third-party public chains, industry chains, alliance chains, and private chains that cannot directly trade with each other through parallel links. If the data transmission and cross-chain transactions cannot be performed directly between the various networks, you can set up a parallel chain to complete the synchronous conversion of transaction data to finally conduct transactions.

Similar parts between the embodiments provided in this application can be referred to each other. The specific implementations provided above are just a few examples under the general concept of this application, and do not constitute a limitation of the protection scope of this application. For those skilled in the art, any other implementations extended according to the scheme of the present application under the premise of no creative labor belong to the protection scope of the present application.

Claims

A blockchain network system includes a public chain and a parent chain accessing the public chain, wherein the parent chain includes a third-party blockchain that is accessible to the public chain and has a proprietary interface; The system further includes: a parallel chain composed of some nodes in the public chain and / or the parent chain;

The parachain node is configured to perform all data operations of the public chain node and has all the functions and information of the public chain node; the parachain node is also configured to be able to perform all data operations of the parent chain node and has the parent chain All functions and information of the node;

The parallel chain node is configured with a public link port and a proprietary interface of the parent chain; and the parallel chain performs a docking operation between the public chain and the parent chain in a bridged manner.
The blockchain network system according to claim 1, characterized in that the nodes on the parallel chain are composed of some public chain nodes, which are formed by internal election of the public chain;

Alternatively, the nodes on the parallel chain are composed of a part of the parent chain nodes recommended by the parent chain and confirmed by the public chain;

Alternatively, part of the nodes on the parallel chain is composed of public chain node elections, and the other part is composed of parent chain nodes recommended by the parent chain and confirmed by the public chain.
The blockchain network system according to claim 1, wherein the parallel chain is a multi-level network structure composed of a plurality of nodes.
The blockchain network system according to claim 3, wherein the parallel chain is a mixed-chain network structure composed of multiple nodes, and the nodes in the parallel chain are connected in parallel to multiple parent chains or multiple public chains. chain.
The blockchain network system according to claim 1, wherein after the parent chain accesses the public chain, an interface node is preferentially selected, and / or a node adjacent to the interface node is used as a parallel chain node.
A blockchain network system includes a chain group composed of multiple third-party blockchain networks and a public chain distributed in the chain group, and the third-party blockchain network has its own proprietary interface; It is characterized in that it also includes: a parallel chain composed of some nodes in the public chain and / or a third-party blockchain network;

The parallel chain is arranged between the public chain and the accessed third-party blockchain network, or between any two interconnected third-party networks;

The parachain nodes are configured to be able to perform all data operations of the public chain nodes and have all the functions and information of the public chain nodes; the parachain nodes are also configured to be able to perform the connection of third-party blockchain nodes. All data operations, with all functions and information of connected third-party blockchain nodes;

The parachain node is configured with a public link port and a third-party blockchain network proprietary interface; and the parachain completes the public chain and the third-party blockchain, or two third-party blockchain networks in a bridged manner. Docking operation between.
The blockchain network system according to claim 6, characterized in that the blockchain system further comprises an industry chain and an alliance chain that meet the specifications of the public link port;

The industry chain and alliance chain access the public chain through nodes in the public chain; the industry chain and alliance chain have independent distributed storage functions, transactions, and accounting functions.
The blockchain network system according to claim 6, wherein the blockchain system further comprises a sub-chain created based on a public link interface specification;

All or part of the nodes in the sub-chain originate from the public chain, or the nodes of the sub-chain have the same interface specifications as the nodes of the public chain; the sub-chain has distributed storage functions, transactions, and accounting functions independent of the public chain .
The blockchain network system according to claim 6, wherein the information stored by the public chain nodes includes public chain transaction information, public chain contract information, public chain data storage index information, public chain receipt record information, Public chain status record information and transaction result index information.
The blockchain network system according to claim 9, wherein the public chain contract information is transaction information generated based on a smart contract provided by the public chain;

The smart contracts provided by the public chain include third-party blockchain network registration, registration, and cancellation contracts, transaction service contracts, value conversion contracts, and data storage contracts.