WO2021189629A1

WO2021189629A1 - Blockchain-based green power certificate transaction method and apparatus, and storage medium

Info

Publication number: WO2021189629A1
Application number: PCT/CN2020/091404
Authority: WO
Inventors: 王栋; 张显; 张圣楠; 玄佳兴; 于晓昆; 梁东; 李方军; 张旭
Original assignee: 国网电子商务有限公司; 国网区块链科技(北京)有限公司; 北京电力交易中心有限公司; 国网天津市电力公司; 国家电网有限公司
Priority date: 2020-03-24
Filing date: 2020-05-20
Publication date: 2021-09-30
Also published as: CN111080421A

Abstract

A blockchain-based green power certificate transaction method and apparatus, and a storage medium. The method comprises: in response to a transfer request of a first object for a target green power certificate, triggering the execution of a transfer smart contract in a power transaction blockchain, the execution process of the transfer smart contract being as follows: writing a transfer record into the power transaction blockchain, the transfer record being used to record transfer information of the target green power certificate, and the target green power certificate being stored in the power transaction blockchain (S11); and acquiring from the power transaction blockchain the target green power certificate and the address of the transfer record on the power transaction blockchain, and sending the target green power certificate and the address of the transfer record on the power transaction blockchain to a second object in the transfer request, such that the second object pays the first object (S12). The method can improve the authenticity of a green power certificate transaction process.

Description

A blockchain-based green power certificate transaction method, device and storage medium

Cross-references to related applications

This application is filed based on a Chinese patent application with an application number of 202010211236.5 and an application date of March 24, 2020, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated by reference into this application.

Technical field

This application relates to the field of power technology, and in particular to a blockchain-based green power certificate transaction method, device and storage medium.

Background technique

Green power certificate (abbreviated as green certificate) is an electronic certificate with a unique identification code issued by the state for each MWh of non-aqueous renewable energy on-grid electricity generated by power generation companies. The only certificate.

Among them, green certificates can be traded to meet the different needs of enterprises. With the further implementation of the "Notice on Establishing and Improving the Renewable Energy Power Consumption Guarantee Mechanism" jointly issued by the National Development and Reform Commission and the National Energy Administration in 2019, the green certificate trading market has been activated, but the existing green certificate transactions are true Sex is difficult to guarantee.

Summary of the invention

In order to solve the above technical problems, the embodiments of this application provide a blockchain-based green power certificate transaction method, device, and storage medium, which can ensure the authenticity of green power certificate transactions by tracing the entire process of green certificate issuance and transaction. The purpose and technical solutions are as follows:

The embodiment of the application provides a blockchain-based green power certificate transaction method, including:

In response to the first object’s transfer request for the target green power certificate, trigger the execution of the transfer smart contract in the power transaction blockchain. The execution process of the transfer smart contract is: writing the transfer record into the power transaction blockchain, The transfer record is used to record transfer information of the target green power certificate, and the target green power certificate is stored in the power transaction blockchain;

Obtain the target green power certificate and the address recorded on the power transaction blockchain from the power transaction blockchain, and record the target green power certificate and the transfer in the power transaction block The address in the chain is sent to the second object in the transfer request, so that the second object pays the first object.

In some embodiments, the method further includes:

In response to the verification request for the target green power certificate, search for the presence of the target green power certificate in the power transaction blockchain;

If it exists, use the found target green power certificate as a basis for verifying the authenticity of the target green power certificate.

In some embodiments, the method further includes:

Responding to the request for tracing the transfer process of the target green power certificate, searching in the power transaction blockchain whether there is a transfer record corresponding to the target green power certificate;

If it exists, use the found transfer record corresponding to the target green power certificate as a basis for tracing the transfer process of the target green power certificate.

In some embodiments, the method further includes:

Responding to a retrospective request for the issuance process of the target green power certificate, searching for the existence of the target green power certificate in the power transaction blockchain;

If it exists, use the found target green power certificate as a basis for tracing the issuance process of the target green power certificate.

In some embodiments, the issuance process of the target green power certificate includes:

In response to the first object's request for a green power certificate, a green power certificate is generated, the green power certificate includes at least description information, a unique number of the certificate, and the validity period of the certificate;

Signing the green power certificate, and writing the signature into the green power certificate to obtain a target green power certificate;

Storing the target green power certificate in the power transaction blockchain;

Sending the target green power certificate and the storage address of the target green power certificate in the power transaction blockchain to the first object.

The embodiment of the application provides a blockchain-based green power certificate transaction device, including:

The trigger module is configured to respond to the transfer request of the first object for the target green power certificate and trigger the execution of the transfer smart contract in the power transaction blockchain. The execution process of the transfer smart contract is: writing a transfer record into the power transaction In the blockchain, the transfer record is used to record transfer information of the target green power certificate, and the target green power certificate is stored in the power transaction blockchain;

The sending module is configured to obtain the target green power certificate and the address of the transfer record on the power transaction blockchain from the power transaction blockchain, and record the target green power certificate and the transfer in the power transaction blockchain. The address in the power transaction blockchain is sent to the second object in the transfer request, so that the second object pays the first object.

In some embodiments, the device further includes:

The first search module is configured to respond to the verification request for the target green power certificate, and search for the existence of the target green power certificate in the power transaction blockchain;

The first determining module is configured to, if the target green power certificate exists in the power transaction blockchain, use the found target green power certificate as a basis for verifying the authenticity of the target green power certificate .

In some embodiments, the device further includes:

The second search module is configured to respond to the transfer process trace request for the target green power certificate, and search for whether there is a transfer record corresponding to the target green power certificate in the power transaction blockchain;

The second determining module is configured to, if there is a transfer record corresponding to the target green power certificate in the power transaction blockchain, use the found transfer record corresponding to the target green power certificate as the traceable target green The basis for the transfer process of the power certificate.

In some embodiments, the device further includes:

The third searching module is configured to respond to the request for tracing the issuance process of the target green power certificate, and search for the existence of the target green power certificate in the power transaction blockchain;

The third determining module is configured to, if the target green power certificate exists in the power transaction blockchain, use the found target green power certificate as a basis for tracing the issuance process of the target green power certificate.

In some embodiments, the device further includes: an issuing module configured to:

Storing the target green power certificate in the power transaction blockchain;

The embodiment of the present application provides a storage medium that stores an executable program, and when the executable program is executed by a processor, the above-mentioned blockchain-based green power certificate transaction method is realized.

Compared with the prior art, the beneficial effects of this application are:

In this application, the target green power certificate is stored in the power transaction blockchain, which can prevent the target green power certificate from being tampered with. Based on this, respond to the transfer request for the target green power certificate to trigger the transfer intelligence in the power transaction blockchain Contract execution, the transfer record used to record the transfer information of the target green power certificate is written into the power transaction blockchain, to ensure that the target green power certificate and its transfer process can be traced, and reduce the need for the green power certificate and its transaction process. The risk of forgery in order to improve the authenticity of green power certificate transactions.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained from these drawings without creative labor.

Figure 1 is a schematic diagram of the structure of a blockchain system provided by this application;

Figure 2 is a flowchart of Embodiment 1 of a blockchain-based green power certificate transaction method provided by this application;

Figure 3 is a flowchart of Embodiment 2 of a blockchain-based green power certificate transaction method provided by this application;

Figure 4 is a flowchart of Embodiment 3 of a blockchain-based green power certificate transaction method provided by this application;

Figure 5 is a flowchart of Embodiment 4 of a blockchain-based green power certificate transaction method provided by this application;

Figure 6 is a schematic diagram of the logical structure of a blockchain-based green power certificate transaction device provided by this application;

FIG. 7 is a schematic diagram of the hardware composition structure of a blockchain-based green power certificate transaction device provided by this application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

The embodiment of the application discloses a blockchain-based green power certificate transaction method, which includes: responding to a transfer request of a first object for a target green power certificate, triggering the execution of a transfer smart contract in the power transaction blockchain, the transfer The execution process of the smart contract is: writing a transfer record into the power transaction blockchain, the transfer record is used to record the transfer information of the target green power certificate, and the target green power certificate is stored in the power transaction In the block chain; obtain the target green power certificate and the transfer record address on the power transaction block chain from the power transaction block chain, and record the target green power certificate and the transfer in the power transaction block chain The address in the power transaction blockchain is sent to the second object in the transfer request, so that the second object pays the first object. In this application, the authenticity of the green power certificate transaction is guaranteed through the above methods.

Before introducing the blockchain-based green power certificate transaction method disclosed in the embodiments of this application, the blockchain system on which the blockchain-based green power certificate transaction method relies is introduced. As shown in Figure 1, the area The blockchain system includes: the lowest level of power transaction chain, including node management, consensus mechanism, smart contract, P2P network and other modules, which provide support for upper-level applications; the middle layer is blockchain identity management and blockchain monitoring and management modules, Provide access to blockchain member management and blockchain operating status monitoring capabilities; the upper application is the blockchain green certificate trading platform, which provides the functions of green certificate issuance, transaction, verification and traceability.

Next, the blockchain-based green power certificate transaction method disclosed in the embodiments of this application is introduced. As shown in Figure 2, the process of Embodiment 1 of the blockchain-based green power certificate transaction method provided for this application The diagram can include the following steps:

Step S11: In response to the transfer request of the first object for the target green power certificate, trigger the execution of the transfer smart contract in the power transaction blockchain, and the execution process of the transfer smart contract is: writing a transfer record into the power transaction block In the chain, the transfer record is used to record the transfer information of the target green power certificate, and the target green power certificate is stored in the power transaction blockchain.

The target green power certificate can be understood as: the green power certificate applied by the first object. Among them, the issuance process of the target green power certificate can include:

A11. In response to the first object’s request for a green power certificate, a green power certificate is generated, and the green power certificate includes at least description information, a unique voucher number, and a period of validity of the voucher;

A12. Sign the green power certificate, and write the signature into the green power certificate to obtain a target green power certificate;

A13. Store the target green power certificate in the power transaction blockchain;

A14. Send the target green power certificate and the storage address of the target green power certificate in the power transaction blockchain to the first object.

The transfer information of the target green power certificate may include at least: information of the first object, information of another object participating in the target green power certificate transaction, and index information of the target green power certificate. The index information of the target green power certificate may be used to search for the target green power certificate in the power transaction blockchain.

Of course, the transfer information of the target green power certificate may also include the signature of the target green power certificate and its associated information (for example, the public key of the first object).

In response to the transfer request of the first object for the target green power certificate, the process of triggering the execution of the transfer smart contract in the power transaction blockchain can include but is not limited to:

The key information of the transaction contract signed by the first object and the second object in the transfer request is written into the power transaction blockchain to trigger the execution of the transfer smart contract.

The second object in the transfer request can be understood as: an object that receives the target green power certificate transferred by the first object.

Step S12. Obtain the target green power certificate and the address recorded on the power transaction blockchain from the power transaction blockchain, and record the target green power certificate and the transfer in the power transaction blockchain. The address in the transaction blockchain is sent to the second object in the transfer request, so that the second object pays the first object.

Sending the address of the transfer record in the power transaction blockchain to the second object in the transfer request can ensure that the second object can trace the transaction process of the target green power certificate according to the transfer record, and reduce the risk of the green power certificate. The risk of forgery in the transaction process, so as to improve the authenticity of the transaction process of the green power certificate.

As another optional embodiment of this application, referring to FIG. 3, a schematic flowchart of Embodiment 2 of a blockchain-based green power certificate transaction method provided for this application. This embodiment mainly describes the foregoing Embodiment 1. The extended scheme of the blockchain-based green power certificate transaction method is shown in Figure 3. The method can include but is not limited to the following steps:

Step S21: In response to the transfer request of the first object for the target green power certificate, trigger the execution of the transfer smart contract in the power transaction block chain. The execution process of the transfer smart contract is: writing a transfer record into the power transaction block In the chain, the transfer record is used to record the transfer information of the target green power certificate, and the target green power certificate is stored in the power transaction blockchain.

Step S22: Obtain the target green power certificate and the address of the transfer record on the power transaction blockchain from the power transaction blockchain, and record the target green power certificate and the transfer in the power transaction blockchain. The address in the transaction blockchain is sent to the second object in the transfer request, so that the second object pays the first object.

For the detailed process of steps S21-S22, please refer to the related introduction of steps S11-S12 in Embodiment 1, which will not be repeated here.

Step S23: In response to the verification request for the target green power certificate, search for whether the target green power certificate exists in the power transaction blockchain.

If it exists, step S24 is executed.

If there is a target green power certificate in the power transaction blockchain, the credibility of the target green power certificate can be improved based on the non-tamperable characteristics of the data in the power transaction blockchain.

Step S24: Use the found target green power certificate as a basis for verifying the authenticity of the target green power certificate.

The target green power certificate with high credibility can be used as a basis for verifying the authenticity of the target green power certificate, so as to improve the reliability of the verification.

As another optional embodiment of this application, referring to FIG. 4, this application provides a schematic flow chart of Embodiment 3 of a blockchain-based green power certificate transaction method. This embodiment mainly describes the foregoing Embodiment 1. The extended scheme of the blockchain-based green power certificate transaction method is shown in Figure 4. The method can include but is not limited to the following steps:

Step S31: In response to the transfer request of the first object for the target green power certificate, trigger the execution of the transfer smart contract in the power transaction block chain. The execution process of the transfer smart contract is: writing a transfer record into the power transaction block In the chain, the transfer record is used to record the transfer information of the target green power certificate, and the target green power certificate is stored in the power transaction blockchain.

Step S32. Obtain the target green power certificate and the address recorded on the power transaction blockchain from the power transaction blockchain, and record the target green power certificate and the transfer in the power transaction blockchain. The address in the transaction blockchain is sent to the second object in the transfer request, so that the second object pays the first object.

For the detailed process of steps S31-S32, please refer to the related introduction of steps S11-S12 in Embodiment 1, which will not be repeated here.

Step S33: In response to the request for tracing the transfer process of the target green power certificate, search for whether there is a transfer record corresponding to the target green power certificate in the power transaction blockchain.

If it exists, step S34 is executed.

Step S34: Use the found transfer record corresponding to the target green power certificate as a basis for tracing the transfer process of the target green power certificate.

It should be noted that the target green power certificate may be transferred one or more times, but whether it is one transfer or multiple transfers, the transfer record of each transfer of the target green power certificate is in the power transaction blockchain. record.

Therefore, when the target green power certificate is transferred one or more times, the transfer process of the target green power certificate can be traced.

As another optional embodiment of this application, referring to FIG. 5, this application provides a schematic flow chart of Embodiment 4 of a blockchain-based green power certificate transaction method. This embodiment mainly describes the foregoing Embodiment 1. The extended scheme of the blockchain-based green power certificate transaction method is shown in Figure 5. The method can include but is not limited to the following steps:

Step S41: In response to the transfer request of the first object for the target green power certificate, trigger the execution of the transfer smart contract in the power transaction block chain. The execution process of the transfer smart contract is: writing a transfer record into the power transaction block In the chain, the transfer record is used to record the transfer information of the target green power certificate, and the target green power certificate is stored in the power transaction blockchain.

Step S42. Obtain the target green power certificate and the address recorded on the power transaction blockchain from the power transaction blockchain, and record the target green power certificate and the transfer in the power transaction blockchain. The address in the transaction blockchain is sent to the second object in the transfer request, so that the second object pays the first object.

Step S43: Responding to the request for tracing the issuance process of the target green power certificate, search for the existence of the target green power certificate in the power transaction blockchain.

If it exists, step S44 is executed.

Step S44: Use the found target green power certificate as a basis for tracing the issuance process of the target green power certificate.

Using the found target green power certificate as a basis for tracing the issuance process of the target green power certificate, the traceability of the issuance process of the target green power certificate can be realized.

Next, the blockchain-based green power certificate transaction device provided by this application will be introduced. The blockchain-based green power certificate transaction device introduced below and the blockchain-based green power certificate transaction method described above can correspond to each other. Reference.

Please refer to FIG. 6, the green power certificate transaction device based on the blockchain includes: a trigger module 11 and a sending module 12.

The trigger module 11 is configured to respond to the transfer request of the first object for the target green power certificate and trigger the execution of the transfer smart contract in the power transaction blockchain. The execution process of the transfer smart contract is: writing a transfer record to the power In the transaction blockchain, the transfer record is used to record transfer information of the target green power certificate, and the target green power certificate is stored in the power transaction blockchain.

The sending module 12 is configured to obtain the target green power certificate and the address of the transfer record on the power transaction blockchain from the power transaction blockchain, and record the target green power certificate and the transfer in the The address in the power transaction blockchain is sent to the second object in the transfer request, so that the second object pays the first object.

In this embodiment, the blockchain-based green power certificate transaction device may further include:

The issuance module is configured as:

Storing the target green power certificate in the power transaction blockchain;

It should be noted that each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referred to each other. For the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and for related parts, please refer to the part of the description of the method embodiment.

Finally, it should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these entities. Or there is any such actual relationship or sequence between operations. Moreover, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes those that are not explicitly listed Other elements of, or also include elements inherent to this process, method, article or equipment. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article, or equipment that includes the element.

For the convenience of description, when describing the above device, the functions are divided into various units and described separately. Of course, when implementing this application, the functions of each unit can be implemented in the same or multiple software and/or hardware.

An embodiment of the application also provides a blockchain-based green power certificate transaction device, including a processor and a memory for storing a computer program that can run on the processor, wherein the processor is used to run the computer program At the time, execute the steps of the above-mentioned blockchain-based green power certificate transaction method.

FIG. 7 is a schematic diagram of the hardware composition structure of a blockchain-based green power certificate transaction device according to an embodiment of the present application. The blockchain-based green power certificate transaction device 700 includes: at least one processor 701, a memory 702, and at least one network interface 703. The various components in the green power certificate transaction device 700 based on the blockchain are coupled together through the bus system 704. It can be understood that the bus system 704 is used to implement connection and communication between these components. In addition to the data bus, the bus system 704 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clear description, various buses are marked as the bus system 704 in FIG. 7.

It can be understood that the memory 702 may be a volatile memory or a non-volatile memory, and may also include both volatile and non-volatile memory. Among them, non-volatile memory can be ROM, Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), and electrically erasable Programmable read-only memory (EEPROM, Electrically Erasable Programmable Read-Only Memory), magnetic random access memory (FRAM, ferromagnetic random access memory), flash memory (Flash Memory), magnetic surface memory, optical disk, or CD-ROM (CD) -ROM, Compact Disc Read-Only Memory); Magnetic surface memory can be disk storage or tape storage. The volatile memory may be a random access memory (RAM, Random Access Memory), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (SRAM, Static Random Access Memory), synchronous static random access memory (SSRAM, Synchronous Static Random Access Memory), and dynamic random access memory. Memory (DRAM, Dynamic Random Access Memory), Synchronous Dynamic Random Access Memory (SDRAM, Synchronous Dynamic Random Access Memory), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM, Double Data Rate Synchronous Dynamic Random Access Memory), enhanced Type synchronous dynamic random access memory (ESDRAM, Enhanced Synchronous Dynamic Random Access Memory), synchronous connection dynamic random access memory (SLDRAM, SyncLink Dynamic Random Access Memory), direct memory bus random access memory (DRRAM, Direct Rambus Random Access Memory) ). The memory 702 described in the embodiment of the present application is intended to include, but is not limited to, these and any other suitable types of memory.

The memory 702 in the embodiment of the present application is used to store various types of data to support the operation of the green power certificate transaction device 700 based on the blockchain. Examples of such data include: any computer program used to operate on the blockchain-based green power certificate transaction device 700, such as the application program 7022. The program for implementing the method of the embodiment of the present application may be included in the application program 7022.

The method disclosed in the foregoing embodiment of the present application may be applied to the processor 701 or implemented by the processor 701. The processor 701 may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the foregoing method can be completed by an integrated logic circuit of hardware in the processor 701 or instructions in the form of software. The aforementioned processor 701 may be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and the like. The processor 701 may implement or execute the methods, steps, and logical block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or any conventional processor or the like. Combining the steps of the method disclosed in the embodiments of the present application, it may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, and the storage medium is located in the memory 702. The processor 701 reads the information in the memory 702 and completes the steps of the foregoing method in combination with its hardware.

In an exemplary embodiment, the blockchain-based green power certificate transaction device 700 can be implemented by one or more application specific integrated circuits (ASIC, Application Specific Integrated Circuit), DSP, and Programmable Logic Device (PLD, Programmable Logic Device). , Complex Programmable Logic Device (CPLD, Complex Programmable Logic Device), FPGA, general-purpose processor, controller, MCU, MPU, or other electronic components to implement the foregoing methods.

The embodiment of the application also provides a storage medium for storing a computer program that enables the computer to execute the corresponding process in the blockchain-based green power certificate transaction method of the embodiment of the application. For the sake of brevity, it will not be omitted here. Go into details.

The above provides a detailed introduction to the blockchain-based green power certificate transaction method and device provided by this application. Specific examples are used in this article to illustrate the principles and implementation of this application. The description of the above embodiments is only used To help understand the methods and core ideas of this application; at the same time, for those of ordinary skill in the art, according to the ideas of this application, there will be changes in the specific implementation and scope of application. In summary, this specification The content should not be construed as a limitation on this application.

Claims

A blockchain-based green power certificate transaction method, including:

In response to the transfer request of the first object for the target green power certificate, trigger the execution of the transfer smart contract in the power transaction blockchain. The execution process of the transfer smart contract is: writing the transfer record into the power transaction blockchain, The transfer record is used to record transfer information of the target green power certificate, and the target green power certificate is stored in the power transaction blockchain;

Obtain the target green power certificate and the transfer record address on the power transaction blockchain from the power transaction blockchain, and record the target green power certificate and the transfer in the power transaction block The address in the chain is sent to the second object in the transfer request, so that the second object traces the transaction process of the target green power certificate according to the transfer record, and pays the first object.
The method according to claim 1, wherein the method further comprises:

In response to the request for verification of the target green power certificate, search for the presence of the target green power certificate in the power transaction blockchain;

If it exists, use the found target green power certificate as a basis for verifying the authenticity of the target green power certificate.
The method according to claim 1, wherein the method further comprises:

Responding to the request for tracing the transfer process of the target green power certificate, search for whether there is a transfer record corresponding to the target green power certificate in the power transaction blockchain;

If it exists, use the found transfer record corresponding to the target green power certificate as the basis for tracing the transfer process of the target green power certificate.
The method according to claim 1, wherein the method further comprises:

In response to the request for tracing the issuance process of the target green power certificate, search for the existence of the target green power certificate in the power transaction blockchain;

If it exists, use the found target green power certificate as a basis for tracing the issuance process of the target green power certificate.
The method according to claim 4, wherein the issuance process includes:

In response to the first object's request for a green power certificate, a green power certificate is generated, the green power certificate includes at least description information, a unique number of the certificate, and the validity period of the certificate;

Signing the green power certificate, and writing the signature into the green power certificate to obtain a target green power certificate;

Storing the target green power certificate in the power transaction blockchain;

Sending the target green power certificate and the storage address of the target green power certificate in the power transaction blockchain to the first object.
A blockchain-based green power certificate transaction device, including:

The trigger module is used to respond to the transfer request of the first object for the target green power certificate, and trigger the execution of the transfer smart contract in the power transaction blockchain. The execution process of the transfer smart contract is: writing a transfer record into the power transaction In the blockchain, the transfer record is used to record transfer information of the target green power certificate, and the target green power certificate is stored in the power transaction blockchain;

The sending module is configured to obtain the target green power certificate and the address of the transfer record on the power transaction blockchain from the power transaction blockchain, and record the target green power certificate and the transfer in the power transaction blockchain. The address in the power transaction blockchain is sent to the second object in the transfer request, so that the second object traces the transaction process of the target green power certificate according to the transfer record, and sends it to the first Object payment.
The device according to claim 6, wherein the device further comprises:

The first search module is configured to respond to a request for verification of the target green power certificate, and search for whether the target green power certificate exists in the power transaction blockchain;

The first determining module is configured to, if the target green power certificate exists in the power transaction blockchain, use the found target green power certificate as a basis for verifying the authenticity of the target green power certificate .
The device according to claim 6, wherein the device further comprises:

The second searching module is configured to respond to the request for tracing the transfer process of the target green power certificate, and search for whether there is a transfer record corresponding to the target green power certificate in the power transaction blockchain;

The second determining module is configured to, if there is a transfer record corresponding to the target green power certificate in the power transaction blockchain, use the found transfer record corresponding to the target green power certificate as the traceable target green The basis for the transfer process of the power certificate.
The device according to claim 6, wherein the device further comprises:

The third searching module is configured to respond to the request for tracing the issuance process of the target green power certificate, and search for the existence of the target green power certificate in the power transaction blockchain;

The third determining module is configured to, if the target green power certificate exists in the power transaction blockchain, use the found target green power certificate as a basis for tracing the issuance process of the target green power certificate.
The device according to any one of claims 6-9, wherein the device further comprises: a verification and issuance module configured to:

In response to the first object's request for a green power certificate, a green power certificate is generated, the green power certificate includes at least description information, a unique number of the certificate, and the validity period of the certificate;

Signing the green power certificate, and writing the signature into the green power certificate to obtain a target green power certificate;

Storing the target green power certificate in the power transaction blockchain;

Sending the target green power certificate and the storage address of the target green power certificate in the power transaction blockchain to the first object.
A storage medium, characterized in that an executable program is stored, and when the executable program is executed by a processor, the blockchain-based green power certificate transaction method according to any one of claims 1 to 7 is realized.
A blockchain-based green power certificate transaction device, which is characterized by comprising a processor and a memory for storing computer programs that can run on the processor, wherein:

When the processor is used to run the computer program, it executes the steps of the blockchain-based green power certificate transaction method according to any one of claims 1 to 7.