WO2020173501A1

WO2020173501A1 - Block chain-based transaction system

Info

Publication number: WO2020173501A1
Application number: PCT/CN2020/078672
Authority: WO
Inventors: 白杰; 李冬云; 吴先锋
Original assignee: 白杰
Priority date: 2019-02-26
Filing date: 2020-03-10
Publication date: 2020-09-03
Also published as: JP7041993B2; CN111614709A; CN111614707A; CN111614709B; JP2022517436A; CN111614708B; CN111614708A; WO2020173498A1; WO2020173502A1

Abstract

The present application provides a block chain-based transaction system. Some nodes are selected from the system every preset time period, and the selected some nodes are configured as core nodes; some nodes are selected from nodes other than the core nodes, and the selected some nodes are configured as supervision nodes. When a transaction is sent, the core node may receive a transaction request, verify the transaction request, generate first block chain data corresponding to the transaction request after the verification is successful, and store the first block chain data. The supervision nodes may verify the first block chain data stored by the core node. By using the transaction system, nodes in the block chain network may transit from absolute decentralization to effective decentralization, so that the efficiency of the operation of the network is greatly improved, the resource utilization is improved, the decentralization property is completely maintained, and requirements of safety and reliability of the network are satisfied.

Description

A blockchain-based transaction system. This application is required to be submitted to the Chinese Patent Office on February 26, 2019, the application number is 201910141898.7, the title of the invention is "Blockchain-based high-concurrency fast transaction and verification method" and in 2019 The priority of the Chinese patent application filed with the Chinese Patent Office on August 8th, the application number is 201910730056.5, and the invention title is "a blockchain-based transaction system", the entire content of which is incorporated into this application by reference.

Technical field

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

Background technique

Blockchain is a chained data structure that combines data blocks in sequence in chronological order, and is a distributed system that cannot be tampered with or forged that is guaranteed by cryptography.

Under the conditions of the impossible triangle of distributed systems, there is no way to fully balance the security, scalability, and decentralization of existing blockchain systems. For example, the Bitcoin network. The decentralization and security of the network have been improved. However, due to the architecture design of the network itself, the transaction processing volume per unit time (Transaction Per Second, TPS) cannot be effectively improved, so its expansion The performance is poor; another example is a commercial distributed system (Enterprise Operation System, EOS), which makes its TPS value reach one million at the expense of decentralization and security, thereby improving scalability.

Based on this, there is an urgent need for a blockchain-based transaction system to solve the problem that the existing technology cannot take into account the security, scalability, and decentralization of the blockchain system.

Summary of the invention

This application provides a blockchain-based transaction system, which is used to solve the technical problem that the existing technology cannot take into account the security, scalability, and decentralization of the blockchain system.

The embodiment of the present application provides a blockchain-based transaction system in which nodes in the system establish a network connection with each other; select some nodes from the system every preset time period, configure them as core nodes, and remove Selecting some nodes from the nodes other than the core nodes and configuring them as supervisory nodes;

The core node is further configured to: when a transaction occurs, receive a transaction request, and verify the transaction request, and after the verification is passed, generate the first blockchain data corresponding to the transaction request, and store and Broadcast the first blockchain data;

The supervision node is further configured to: verify the first blockchain data.

In a possible implementation manner, the first supervision node is further configured to: if the verification result of the first blockchain data is incorrect, mark the first blockchain data as illegal data, and The system broadcasts a message that the first blockchain data is illegal data; the first supervisory node is any one of the supervisory nodes; the second supervisory node is further configured to: upon receiving the After the news that the first blockchain data is illegal data, Verifying the first blockchain data, and if the verification result of the first blockchain data is wrong, configure the core node storing the first blockchain data as a participating node; The second supervision node is any node among the supervision nodes except the first supervision node.

In a possible implementation manner, nodes other than the core node and the supervisory node in the system are configured as participating nodes;

The supervisory node is further configured to: if the verification result of the first blockchain data stored by the core node is correct, broadcast a message in the system that the verification result of the first blockchain data is correct ；

The participating node is further configured to: after receiving a message indicating that the verification result of the first blockchain data is correct, generate summary information corresponding to the first blockchain data, and generate the first block chain data according to the summary information. Two block chain data, and storing the second block chain data.

In a possible implementation manner, the supervisory node is further configured to: if the verification result of the first blockchain data stored by the core node is correct, generate summary information corresponding to the first blockchain data , Generating third blockchain data according to the summary information, and storing the third blockchain data.

In a possible implementation manner, some nodes are selected from the system by random election through public chain smart contracts every preset time period, and some selected nodes are configured as core nodes; and, through the public chain The smart contract randomly selects some nodes from nodes other than the core nodes, and configures some of the selected nodes as supervisory nodes; and, selects the nodes in the system other than the core nodes and the supervisory nodes The node is configured as a participating node.

In a possible implementation manner, every preset time period, according to the node's own resources and the distance between the nodes, select some nodes from the system, and configure some of the selected nodes as core nodes, and Select some nodes from the nodes other than the core node, and configure the selected some nodes as supervisory nodes, and configure the nodes other than the core node and the supervisory node in the system as participating nodes.

In a possible implementation manner, according to the distance between the node's own resources and the node in the current time period, some nodes are selected from the core nodes in the previous time period, and some nodes are selected in the current time period. Configure as a supervisory node or participating node; and, according to the distance between the node's own resources and the node in the current time period, select some nodes from the supervisory nodes in the previous time period, and select the selected part in the current time period The node is configured as a core node or a participating node; and, according to the node’s own resources and the distance between the node in the current time period, select some nodes from the participating nodes in the previous time period, and select the selected nodes in the current time period Some nodes are configured as core nodes or supervisory nodes.

In a possible implementation manner, at intervals of a preset time period, some nodes are selected from the system through competition and election, and some selected nodes are configured as core nodes; and, through competition and election Selecting some nodes from nodes other than the core node, and configuring the selected some nodes as supervisory nodes; and configuring nodes other than the core node and the supervisory node in the system as participating nodes.

In a possible implementation manner, the supervision node is further configured to: verify the configuration of the core node, and if there is a core node with a configuration error, configure the core node with the configuration error as a participating node.

In a possible implementation manner, the core node is further configured to: receive a transaction initiating node or the A transaction request sent by a neighboring node of the core node.

In this way, in the above block-based transaction system, when sending a transaction, the core node can receive the transaction request, and after verifying the transaction request and the verification is passed, it can generate the first blockchain data corresponding to the transaction request, and store the first block chain data. One block chain data. The supervisor node can verify the first blockchain data stored by the core node. Using the above transaction system, the nodes in the blockchain network can be transformed from absolute decentralization to effective decentralization, thereby greatly improving the efficiency of network operation, prompting the utilization of resources, and at the same time maintaining complete decentralization Further, since the core node and the supervisory node can be reconfigured every preset end, that is, the nodes in the transaction system can periodically switch their roles, so as to meet the security and safety of the blockchain network Reliability requirements; Furthermore, the transaction system is generated based on the blockchain, so it can inherit the scalability of the blockchain network.

Description of the drawings

Figure 1 is a schematic structural diagram of a blockchain-based transaction system to which an embodiment of the present application is applicable;

FIG. 2 is a schematic diagram of node configuration in the next time period to which the embodiment of the present application is applicable;

Fig. 3 is a schematic diagram of a transaction process of a blockchain-based transaction system provided by an embodiment of the present application; Fig. 4 is a schematic diagram of a transaction process of another blockchain-based transaction system provided by an embodiment of the present application; An embodiment of the application provides a schematic diagram of the workflow of a supervisory node.

detailed description

In order to make the objectives, technical solutions, and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below with reference to the accompanying drawings.

In the technical solution provided by this application, the blockchain refers to the accounting data generated by transactions in the network system on the one hand, and refers to the network running blockchain technology, that is, the blockchain network. Among them, the blockchain network refers to a point-to-point (P2P) network with a decentralized application architecture, and the blockchain network can perform distributed storage, public consensus, digital encryption, transaction accounting, and verification. It is a trading platform covering distributed technology, cryptography, P2P network architecture, and various consensus algorithms that may be applied.

Blockchain or blockchain information is accounting information generated based on transaction data when transactions occur in a blockchain network, that is, multiple specific transactions form a block, and multiple blocks form a blockchain. The blockchain network includes nodes that establish a peer-to-peer network connection with each other. Each node is equipped 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 interface specifications that comply with a certain unified standard, so as to realize access to more nodes or other types of blockchain networks through the interface specifications.

The following first introduces a possible system architecture applicable to the embodiment of the present application in conjunction with FIG. 1.

Please refer to FIG. 1, which exemplarily shows a schematic structural diagram of a blockchain-based transaction system provided by an embodiment of the present application. It can be seen from Figure 1 that the nodes in the transaction system provided by this application establish a network connection with each other. Moreover, every preset time period, some nodes can be selected from the trading system, and the selected nodes can be configured as core nodes, and some nodes can be selected from nodes other than the core nodes, and the selected nodes It is configured as a supervisory node, and nodes other than core nodes and supervisory nodes can be configured as participating nodes. Taking the schematic diagram shown in FIG. 1 as an example, in the current time period, node 1, node 2, node 3, and node 4 can be configured as core nodes, and node 5, node 6, and node 7 can be configured as supervisory nodes. 8 and node 9 can be configured as participating nodes.

It should be noted that FIG. 1 is only an exemplary illustration, and this application does not limit the respective numbers of core nodes, supervisory nodes, and participating nodes. In addition, FIG. 1 shows only the configuration of each node in the trading system in one time period. In another time period, the configuration of each node in the trading system can be changed or not changed. limited.

In the embodiment of the present application, there are multiple ways to configure a node as a core node (or a supervisory node, or a participating node). In one example, at intervals of a preset time period, the node may be configured by random election. Through the random election mechanism, it is ensured that different nodes have the same opportunity to configure during the process of node configuration, which can guarantee the enthusiasm and activity of each node in the trading system to the greatest extent, thereby improving the ability of the trading system.

Specifically, every preset time period, some nodes can be selected from the system by random election through public chain smart contracts, and some selected nodes can be configured as core nodes; and, through random election through public chain smart contracts Select some nodes from the nodes other than the core node, and configure the selected some nodes as supervisory nodes; and, configure the nodes other than the core node and the supervisory node in the system as participating nodes.

In order to more vividly describe that the configuration of each node in the trading system can be changed periodically, assuming that Figure 1 shows the configuration of each node in the trading system during the current time period, the configuration is performed by random election, then the following Within a period of time, the configuration of each node can be as shown in Figure 2.

As can be seen from Figure 2, in the next time period, node 5, node 7 and node 9 can be configured as core nodes, node 1, node 2, and node 8 can be configured as supervisory nodes, and node 3, node 4, and Node 6 can be configured as a participating node. It can be seen that between different time periods, the number of core nodes, the number of supervisory nodes, and the number of participating nodes may all change; and the core node itself, the supervisory node itself, and the participating node itself may also change, as shown in Figure 1. The illustrated node 1 is configured as a core node in the current time period, and in the next time period, it may be configured as a supervisory node as shown in FIG. 2.

In another example, every preset time period, the node may be configured according to its own resources and the distance between the nodes. Configuring in this way can improve the rationality of node configuration, narrow the gap between nodes configured for the same role, and thereby improve the efficiency of the trading system.

Specifically, every preset time period, some nodes can be selected from the system according to the node's own resources and the distance between the nodes, and the selected nodes can be configured as core nodes, and some nodes can be selected from nodes other than the core nodes. And configure selected nodes as supervisory nodes, and configure nodes other than the core node and supervisory nodes in the system as participating nodes.

For example, the nodes in the transaction system can be divided into three groups according to the distance between the nodes, where one group corresponds to the core node, the other group corresponds to the supervisory node, and another group corresponds to the participating nodes. Then, the average value of the resources corresponding to each group of nodes can be determined according to the resources of the nodes themselves. Finally, it can be configured according to the average value of resources corresponding to each group of nodes. For example, the core node can have all the functions of the network. Therefore, the group of nodes with the highest average value of resources can be configured as the core node; The results produced are supervised and managed, and corresponding network services are also required. Therefore, a group of nodes with an average resource average can be configured as supervisory nodes; participating nodes Will not participate in the maintenance and supervision of the network, and more appear as users of the network, so a group of nodes with the lowest average resource value can be configured as participating nodes.

Further, the configuration of the core node, the supervisory node, and the participating node may change periodically, that is, the configuration of the core node (or supervisory node, or participating node) in the current time period may be different from that of the core node in the previous time period. The configuration of nodes (or supervisory nodes, or participating nodes) is different.

Specifically, for the configuration of each node in the system in the current time period, some nodes can be selected from the core nodes in the previous time period according to the node’s own resources in the current time period and the distance between the nodes, and the current Configure selected nodes as supervisory nodes or participating nodes in the time period; and, according to the distance between the node's own resources and the nodes in the current time period, select some nodes from the supervisory nodes in the previous time period, and select Configure selected nodes as core nodes or participating nodes in the current time period; and, according to the node's own resources in the current time period and the distance between the nodes, select some nodes from the participating nodes in the previous time period, and Configure selected nodes as core nodes or supervisory nodes in the current time period.

In another example, every preset time period, nodes may be configured through competition and election.

Specifically, every preset time period, some nodes can be selected from the system by means of competition and election, and some selected nodes can be configured as core nodes; and, by means of competition and election, from nodes other than the core nodes Select some nodes in the, and configure some selected nodes as supervisory nodes; and configure nodes in the system except the core node and the supervisory node as participating nodes.

It should be noted that the above three examples are only illustrative descriptions of node configuration, and those skilled in the art can adjust the node configuration mode according to experience and actual conditions, which are not specifically limited.

Based on the system architecture shown in FIG. 1, FIG. 3 exemplarily shows a schematic diagram of a transaction process of a blockchain-based transaction system provided by an embodiment of the present application.

As shown in Figure 3, the core node (node 1 shown in Figure 3) can be further configured to: when a transaction occurs, receive a transaction request, and verify the transaction request, and after the verification is passed, generate a transaction request Corresponding to the first blockchain data, and storing and broadcasting the first blockchain data.

The core node may be further configured as follows: if the core node determines that the verification fails after verifying the transaction request, the transaction request may be ignored (not shown in FIG. 3).

The supervisory node (node 5 shown in Figure 3) can be further configured to: verify the first blockchain data.

In this way, in the above block-based transaction system, when sending a transaction, the core node can receive the transaction request, and after verifying the transaction request and the verification is passed, it can generate the first blockchain data corresponding to the transaction request, and store the first blockchain data. One block chain data. The supervisor node can verify the first blockchain data stored by the core node. Using the above-mentioned transaction system, the nodes in the blockchain network can transform from absolute decentralization to effective decentralization, thereby greatly improving the efficiency of network operations, improving the utilization of resources, and maintaining integrity at the same time Decentralization; further, since the core node and the supervisory node can be reconfigured every preset end, that is, the nodes in the transaction system can periodically switch their roles, so as to meet the requirements of the blockchain network Safety and reliability requirements; furthermore, The transaction system is generated based on the blockchain, so it can inherit the scalability of the blockchain network.

According to the content shown in Figure 3, the transaction request received by the core node (ie node 1) originates from node 0. Node 0 can be a transaction initiating node, or a neighboring node of the core node (ie, node 1). In other words, the core node (node 1 as shown in Figure 3) can be further configured to: receive a transaction request sent by the transaction initiating node or a neighboring node of the core node.

Depending on the actual application environment, the transaction form between the transaction initiation point and the core node is also different. The core node may receive the transaction request sent by the transaction initiating node in the following two situations.

In one situation, if the transaction initiating node can conduct transaction or information interaction with the direct core node, it can directly send a transaction request to the core node through the transaction initiating node. This method is most suitable for transactions where the transaction initiating node and the core node are in the same blockchain network, that is, the transaction initiating node is also a node in the transaction system.

Another situation is that if the transaction initiating node cannot directly conduct transactions or information interaction with the core node, the transaction request can be broadcast through the transaction initiating node. Specifically, the transaction request may be first broadcast to the neighboring node, and the neighboring node will determine whether to complete the transaction or continue broadcasting in combination with its own role until the core node receives the transaction request.

The core node receives the transaction data sent by the neighboring nodes of the core node. The corresponding situation may be that the transaction initiating node does not know the location information of the core node and sends the transaction request in the blockchain through broadcast. Thus, as the information spreads, the core Nodes can receive transaction requests through their neighboring nodes.

It should be noted that the above two situations are only exemplary. In other possible examples, if the transaction initiating node is a neighboring node of the core node, then the core node can also be regarded as directly receiving the transaction from the transaction initiating node. Transaction request.

In this embodiment of the application, when the supervisory node verifies the first blockchain data stored by the core node, it may be verified that the first blockchain data stored by the core node is incorrect, or the core node may be verified. There are two cases where the first blockchain data is correct, and the subsequent execution processes corresponding to the two cases are different.

As shown in Fig. 4, another block chain-based transaction system is provided for this embodiment of the application for a transaction flow diagram.

Among them, the core node (node 1 shown in Figure 4) can be further configured to: when a transaction occurs, receive a transaction request initiated by node 0, and verify the transaction request, and after the verification is passed, generate a transaction request Corresponding to the first blockchain data, and storing the first blockchain data.

The supervision node (node 5 as shown in Figure 4) can be further configured to: verify the first blockchain data stored by the core node (ie, node 1).

Further, according to the different verification results, the corresponding execution procedures are also different.

A possible implementation is that the first supervisory node (node 5 shown in Figure 4) may be further configured to: verify the first blockchain data, if the first blockchain data is verified If the result is incorrect, mark the first blockchain data as illegal data, and broadcast a message in the system that the first blockchain data is illegal data; wherein, the first supervisory node is a supervisory node Any node.

In this way, the second supervisory node (node 6 as shown in FIG. 4) may be further configured to: upon receiving the After the first block chain data is a message of illegal data, the first block chain data is verified. If the verification result of the first block chain data is incorrect, the first block chain data will be stored The core node is configured as a participating node; wherein, the second supervisory node is any node among the supervisory nodes except the first supervisory node.

Further, if the second supervisory node determines that the verification result of the first blockchain data is incorrect after verifying the first blockchain data, the core node storing the first blockchain data can be removed from the core Node group, and trigger the corresponding punishment and reward mechanism: that is, the deposit of the core node storing the first blockchain data will be fined, and rewards will be issued to the first supervision node.

Another possible implementation is that the supervisory node (node 5 as shown in Fig. 4) can be further configured to: verify the first blockchain data stored by the core node, if the first blockchain data stored by the core node The verification result of a block chain data is correct, and a message that the verification result of the first block chain data is correct is broadcast to the system.

In this way, the participating node (node 8 as shown in FIG. 4) may be further configured to: after receiving a message that the verification result of the first blockchain data is correct, it may independently decide whether to store the first block If the summary information corresponding to the chain data is stored, the summary information corresponding to the first block chain data is generated, the second block chain data is generated according to the summary information, and the second block chain data is stored.

Furthermore, as shown in FIG. 5, it is a schematic diagram of a workflow of a supervisory node provided in an embodiment of this application. The supervisory node (node 5 shown in Figure 5) can be further configured to: if the verification result of the first blockchain data stored by the core node is correct, generate summary information corresponding to the first blockchain data, according to The summary information generates third blockchain data and stores the third blockchain data.

In this embodiment of the application, in addition to verifying the first blockchain data generated by the core node as described above, the supervision node may also supervise the configuration of the core node.

Specifically, the supervisory node may be further configured to: verify the configuration of the core node, and if there is a core node with a configuration error, configure the core node with the configuration error as a participating node.

According to the content described above, in this embodiment of the application, the core node can have all the functions of the network, that is, it can receive the transaction request, and after the transaction request is verified and passed, the corresponding blockchain can be generated Data; The supervisory node can supervise and manage the results produced by the core role, and provide corresponding network services at the same time; The participating nodes will not participate in the maintenance and supervision of the network, and more appear as network users.

It should be noted that the core nodes, supervisory nodes and participating nodes respectively assume different roles and have different functions. Core nodes, supervisory nodes, and participating nodes each complete corresponding work to jointly maintain the operation and stability of the trading system. However, the nodes included in the core node do not all have the same function at the same point in time, and there is also a relationship of competition and supervision between each other.

For example, taking the four nodes of the core node shown in Figure 1 including node 1, node 2, node 3, and node 4 as an example, when a transaction occurs, each node may receive a transaction request, but Not every node has the right to keep accounts. If node 1 obtains the accounting right, then the blockchain data corresponding to the transaction request will be generated and stored by node 1, and furthermore, node 1 can also obtain the corresponding income. In other words, node 1 wins the competition in this transaction, while node 2, node 3, and node 4 lose the competition.

Similarly, there may also be a competitive relationship in the supervisory node, which will not be repeated here. In an exemplary embodiment, a computer-readable storage medium is also provided, in which a computer program or smart contract is stored, and the computer program or smart contract is loaded and executed by a node to implement the above-mentioned embodiments. Transaction processing method. Optionally, the aforementioned computer-readable storage medium may be a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc. .

Those skilled in the art can clearly understand that the technology in the embodiments of this application can be implemented by means of software plus a necessary universal hardware platform. Based on this understanding, the technical solutions in the embodiments of the present application can be embodied in the form of software products, which can be stored in a storage medium, such as ROM/RAM. , Magnetic disks, optical disks, etc., include a number of instructions to enable a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in each embodiment or some parts of the embodiment of the present application.

Those skilled in the art will easily think of other implementation schemes of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptive changes of the present disclosure, which follow the general principles of the present disclosure and include common knowledge or conventional technical means in the technical field not disclosed in the present disclosure . The description and the embodiments are only regarded as exemplary, and the true scope and spirit of the present disclosure are pointed out by the following claims.

It should be understood that the present disclosure is not limited to the precise structure that has been described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A blockchain-based transaction system in which nodes in the system establish a network connection with each other; characterized in that some nodes are selected from the system every preset time period and configured as core nodes, and, from Select some nodes from the nodes other than the core node, and configure them as supervisory nodes;

2. The system according to claim 1, wherein the first supervisory node is further configured to: if the verification result of the first blockchain data is incorrect, mark the first blockchain data Is illegal data, and a message that the first blockchain data is illegal data is broadcast in the system; the first supervision node is any one of the supervision nodes;

The second supervision node is further configured to: after receiving a message that the first blockchain data is illegal data, verify the first blockchain data, if the first blockchain data is If the verification result is incorrect, the core node storing the first blockchain data is configured as a participating node; the second supervision node is any node in the supervision nodes except the first supervision node.

3. The system according to claim 1, characterized in that nodes other than the core node and the supervisory node in the system are configured as participating nodes;

4. The system according to claim 1, wherein the supervisory node is further configured to: if the verification result of the first blockchain data stored by the core node is correct, generate the first block The summary information corresponding to the chain data generates third block chain data according to the summary information, and stores the third block chain data.

5. The system according to claim 3, characterized in that, every preset time period, some nodes are selected from the system by means of random election through public chain smart contracts, and some selected nodes are configured as core nodes And, selecting some nodes from nodes other than the core nodes by means of random election through public chain smart contracts, and configuring some selected nodes as supervisory nodes; and, removing the core nodes and the core nodes from the system Nodes other than the supervisory node are configured as participating nodes.

6. The system according to claim 3, characterized in that, at intervals of a preset time period, some nodes are selected from the system according to the node's own resources and the distance between the nodes, and the selected parts are configured Is a core node, and select some nodes from nodes other than the core node, and configure the selected partial nodes Is a supervisory node, and nodes other than the core node and the supervisory node in the system are configured as participating nodes.

7. The system according to claim 6, characterized in that, according to the node's own resources and the distance between the nodes in the current time period, some nodes are selected from the core nodes in the previous time period, and in the current time period Configure selected nodes as supervisory nodes or participating nodes; and, according to the node’s own resources and the distance between the nodes in the current time period, select some nodes from the supervisory nodes in the previous time period, and select some nodes in the current time period. Configure selected nodes as core nodes or participating nodes in the segment; and, according to the node’s own resources and the distance between the nodes in the current time period, select part of the nodes from the participating nodes in the previous time period, and select some nodes in the current time period. Configure some selected nodes as core nodes or supervisory nodes during the time period.

8. The system according to claim 3, characterized in that, every preset time period, some nodes are selected from the system by means of competition and election, and some selected nodes are configured as core nodes; and, Partial nodes are selected from nodes other than the core node through competition and election, and the selected part of the nodes are configured as supervisory nodes; and, in the system except for the core node and the supervisory node The node is configured as a participating node.

9. The system according to claim 1, wherein the supervisory node is further configured to: verify the configuration of the core node, and if there is a core node with a configuration error, check the configuration of the core node The node is configured as a participating node.

10. The system according to any one of claims 1 to 9, wherein the core node is further configured to: receive a transaction request sent by a transaction initiating node or a neighboring node of the core node.