A public service method and system for forestry carbon sink carbon assets based on blockchain

Abstract

The present invention discloses a public service method for forestry carbon sink carbon assets based on blockchain, including: a user terminal logs in to a forest right carbon sink subsystem and registers the forest right certificate to which it belongs; the forest right carbon sink subsystem queries and compares the forest right certificate, forestry staff confirm the right, a satellite remote sensing subsystem takes photos according to a designated area and performs information analysis, an expert evaluation subsystem generates an expert report, a third-party carbon value calculation subsystem generates a carbon value evaluation report, and a subsystem of the Environmental Certification Center of the Ministry of Environmental Protection generates a certification report, and each subsystem stores the corresponding files in a blockchain for evidence storage; after receiving the certification report, the forest right carbon sink subsystem sends a message to the user terminal to receive the corresponding carbon ticket. The method of the present invention generates forestry carbon tickets by integrating multiple process authentications, and uses blockchain for evidence storage to connect various processes to ensure that process information cannot be tampered with, ensure the authenticity of carbon tickets, and thus ensure that carbon ticket transactions, pledges, cashing, offsets, etc. are carried out smoothly.

Description

Technical Field

[0001] The present invention relates to the field of forestry carbon sinks, and in particular to a forestry carbon sink carbon asset public service method and system based on blockchain. Background Art

[0002] Forestry carbon sink refers to the process, activity or mechanism that utilizes the carbon storage function of forests to absorb and fix carbon dioxide in the atmosphere through activities such as afforestation, strengthening forest management, reducing deforestation, protecting and restoring forest vegetation, and combining it with carbon sink trading in accordance with relevant rules.

[0003] Carbon sink afforestation refers to afforestation activities with special requirements, which are carried out on land with a determined baseline, with the main purpose of increasing carbon sinks, and implementing carbon sink measurement and monitoring in the afforestation and tree (branch) growth process. Compared with ordinary afforestation, carbon sink afforestation highlights the carbon sink function of forests, has special technical requirements such as carbon sink measurement and monitoring, and emphasizes the multiple benefits of forests.

[0004] The Intergovernmental Panel on Climate Change of the United Nations pointed out in its assessment report that forestry has multiple benefits and has the dual functions of mitigating and adapting to climate change. It is an important measure to increase carbon sinks and reduce emissions at a low cost and economically feasible in the next 30 to 50 years. According to relevant data, every cubic meter of stock growth can absorb about 1.83 tons of carbon dioxide and release 1.62 tons of oxygen.

[0005] Forestry carbon tickets refer to forest land and trees with clear ownership within the administrative region. According to the "Sanming Forestry Carbon Ticket Carbon Emission Reduction Measurement Method", the certificates with income rights are issued based on the carbon emission reductions monitored and calculated by a third-party agency, reviewed by experts, approved by the forestry authorities, and registered and issued by the ecological environment authorities. They are granted the rights of trading, pledging, cashing, and offsetting, and the unit is ton (measured in carbon dioxide equivalent);

[0006] Since forestry carbon tickets have income rights and are endowed with the power attributes of trading, pledging, redemption, and offsetting, the issues of their authentication and uniqueness that cannot be tampered with have not yet been resolved. Summary of the invention

[0007] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a public service method for forestry carbon sinks and carbon assets based on blockchain. The method of the present invention generates forestry carbon tickets by integrating multiple process authentications, and uses blockchain evidence to connect various processes to ensure that process information cannot be tampered with, and blockchain is used to verify the information to ensure the authenticity and reliability of carbon tickets, thereby ensuring the smooth transaction, pledge, redemption, and offset of carbon tickets.

[0008] The present invention adopts the following technical solution:

[0009] A forestry carbon sink carbon asset public service method based on blockchain, comprising the following steps:

[0010] The user terminal logs into the forest rights carbon sink subsystem and registers the forest rights certificate;

[0011] The forest rights carbon sink subsystem queries and compares the linked government forest rights data with the forest rights certificate of the user, and feeds back the query and comparison results. The forestry staff will confirm the rights, and the confirmed forest rights certificate will be synchronously sent to the satellite remote sensing subsystem, expert evaluation subsystem, third-party carbon value calculation subsystem and the National Environmental Protection Department Environmental Certification Center subsystem, and stored in the blockchain for evidence storage;

[0012] The satellite remote sensing subsystem takes photos of the designated area of ​​the forest right certificate after the confirmation of the right, analyzes the forest information based on the photos, and simultaneously sends the photos and corresponding forest information to the forest right carbon sink subsystem, expert evaluation subsystem, third-party carbon value calculation subsystem and the National Environmental Protection Department Environmental Certification Center subsystem, and stores them in the blockchain for evidence storage;

[0013] The expert evaluation subsystem evaluates the forest rights certificate, forest land photos and corresponding forest land information after confirmation, generates an expert report, and simultaneously sends it to the forest rights carbon sink subsystem, the third-party carbon value calculation subsystem and the National Environmental Protection Department Environmental Certification Center subsystem, and stores it in the blockchain for evidence storage;

[0014] The third-party carbon value calculation subsystem conducts carbon value assessment on the forest rights certificate, forest land photos, corresponding forest land information and expert reports after the confirmation of the right, generates a carbon value assessment report, and simultaneously sends it to the forest rights carbon sink subsystem and the National Environmental Protection Department Environmental Certification Center subsystem, and stores it in the blockchain for evidence storage;

[0015] The Environmental Certification Center subsystem of the Ministry of Environmental Protection reviews and certifies the forest rights certificate, forest land photos, relevant forest land information, expert reports and carbon value assessment reports, and generates a certification report, which is sent to the forest rights carbon sink subsystem and stored in the blockchain for evidence storage;

[0016] After receiving the certification report sent by the Environmental Certification Center subsystem of the Ministry of Environmental Protection, the forest rights carbon sink subsystem sends a message to the user terminal to collect the corresponding carbon ticket.

[0017] Specifically, the method further includes:

[0018] The user terminal enters the carbon ticket information into the carbon exchange subsystem for trading, pledging, cashing and offsetting. The carbon exchange subsystem verifies the carbon ticket blockchain through the carbon ticket information. If the verification passes, trading, pledging, cashing and offsetting can be carried out.

[0019] Specifically, the storage of evidence in the blockchain includes:

[0020] Hash the file to be stored to obtain the corresponding file hash value, obtain the corresponding business summary data and electronic signature of each subsystem, and obtain the timestamp required for chaining from the National Time Service Center;

[0021] The file hash value, business summary data, electronic signature and timestamp are sent to the blockchain’s smart contract for on-chain verification and storage.

[0022] Specifically, the carbon exchange subsystem performs carbon ticket blockchain verification through carbon ticket information, specifically including:

[0023] According to the carbon ticket information, the evidence data is obtained from the blockchain evidence platform.

[0024] The evidence data includes the hash value, business summary data, electronic signature and timestamp of the original file; the original file includes the forest right certificate after confirmation, photos of the forest land and corresponding forest land information, expert reports, carbon value assessment reports and certification reports;

[0025] The original file is hashed and compared with the hash value of the original file obtained on the blockchain to verify the stored data.

[0026] Another embodiment of the present invention provides a forestry carbon sink carbon asset public service system based on blockchain, including: the system includes: a forest right carbon sink subsystem, a satellite remote sensing subsystem, an expert evaluation subsystem, a third-party carbon value calculation subsystem and a National Environmental Protection Department Environmental Certification Center subsystem, specifically:

[0027] The forest rights carbon sink subsystem registers the forest rights certificate according to the user terminal login; and queries and compares the linked government forest rights data with the user's forest rights certificate, and feedbacks the query and comparison results. The forestry staff will confirm the rights and send the confirmed forest rights certificate to the satellite remote sensing subsystem, expert evaluation subsystem, third-party carbon value calculation subsystem and the National Environmental Protection Department Environmental Certification Center subsystem simultaneously, and store it in the blockchain for evidence storage; after receiving the certification report sent by the National Environmental Protection Department Environmental Certification Center subsystem, send a message to the user terminal to collect the corresponding carbon ticket;

[0028] The satellite remote sensing subsystem takes photos of the designated area of ​​the forest right certificate after the confirmation of the right, analyzes the forest information based on the photos, and simultaneously sends the photos and corresponding forest information to the forest right carbon sink subsystem, expert evaluation subsystem, third-party carbon value calculation subsystem and the National Environmental Protection Department Environmental Certification Center subsystem, and stores them in the blockchain for evidence storage;

[0029] The expert evaluation subsystem evaluates the forest rights certificate, forest land photos and corresponding forest land information after confirmation, generates an expert report, and simultaneously sends it to the forest rights carbon sink subsystem, the third-party carbon value calculation subsystem and the National Environmental Protection Department Environmental Certification Center subsystem, and stores it in the blockchain for evidence storage;

[0030] The third-party carbon value calculation subsystem conducts carbon value assessment on the forest rights certificate, forest land photos, corresponding forest land information and expert reports after the confirmation of the right, generates a carbon value assessment report, and simultaneously sends it to the forest rights carbon sink subsystem and the National Environmental Protection Department Environmental Certification Center subsystem, and stores it in the blockchain for evidence storage;

[0031] The Environmental Certification Center subsystem of the Ministry of Environmental Protection reviews the forest rights certificate, forest photos and corresponding forest information, expert reports and carbon value assessment reports after confirmation, stamps and certifies them, generates a certification report, sends it to the forest rights carbon sink subsystem, and stores it in the blockchain for evidence storage.

[0032] Specifically, the system also includes a carbon exchange subsystem, specifically:

[0033] The user terminal enters the carbon ticket information into the carbon exchange subsystem for trading, pledging, cashing and offsetting. The carbon exchange subsystem verifies the carbon ticket blockchain through the carbon ticket information. If the verification passes, trading, pledging, cashing and offsetting can be carried out.

[0034] Specifically, the storage of evidence in the blockchain includes:

[0035] Hash the file to be stored to obtain the corresponding file hash value, obtain the corresponding business summary data and electronic signature of each subsystem, and obtain the timestamp required for chaining from the National Time Service Center;

[0036] The file hash value, business summary data, electronic signature and timestamp are sent to the blockchain’s smart contract for on-chain verification and storage.

[0037] Specifically, the carbon exchange subsystem performs carbon ticket blockchain verification through carbon ticket information, specifically including:

[0038] According to the carbon ticket information, the evidence data is obtained from the blockchain evidence platform.

[0039] The evidence data includes the hash value, business summary data, electronic signature and timestamp of the original file; the original file includes the forest right certificate after confirmation, photos of the forest land and corresponding forest land information, expert reports, carbon value assessment reports and certification reports;

[0040] The original file is hashed and compared with the hash value of the original file obtained on the blockchain to verify the stored data.

[0041] Yet another embodiment of the present invention provides an electronic device, comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor implements the above-mentioned blockchain-based forestry carbon sink carbon asset public service method when executing the computer program.

[0042] Another embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon, characterized in that when the program is executed by a processor, the above-mentioned blockchain-based forestry carbon sink carbon asset public service method is implemented.

[0043] It can be seen from the above description of the present invention that, compared with the prior art, the present invention has the following beneficial effects:

[0044] The present invention provides a forestry carbon sink carbon asset public service method and system based on blockchain, which generates forestry carbon tickets by integrating the forest right carbon sink subsystem, satellite remote sensing subsystem, expert evaluation subsystem, third-party carbon value calculation subsystem and National Environmental Protection Department Environmental Certification Center subsystem, as well as multiple process authentications. Blockchain evidence is used to connect various processes to ensure that process information cannot be tampered with, and blockchain is used to verify the information to ensure the authenticity and reliability of carbon tickets, thereby ensuring the smooth transaction, pledge, redemption and offset of carbon tickets. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 A flowchart of a public service method for forestry carbon sink carbon assets based on blockchain provided by an embodiment of the present invention;

[0046] Figure 2 A schematic diagram of an embodiment of a public service system for forestry carbon sinks and carbon assets based on blockchain provided by an embodiment of the present invention;

[0047] Figure 3 A schematic diagram of an embodiment of an electronic device provided by an embodiment of the present invention;

[0048] Figure 4 A schematic diagram of an embodiment of a computer-readable storage medium provided in an embodiment of the present invention.

[0049] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. DETAILED DESCRIPTION

[0050] The present invention provides a public service method for forestry carbon sink and carbon assets based on blockchain, which generates forestry carbon tickets by integrating multiple process authentications, and uses blockchain evidence to connect various processes to ensure that process information cannot be tampered with, and blockchain is used to verify the information to ensure the authenticity and reliability of carbon tickets, thereby ensuring the smooth transaction, pledge, redemption, and offset of carbon tickets.

[0051] like Figure 1 , a flowchart of a public service method for forestry carbon sink carbon assets based on blockchain provided by an embodiment of the present invention specifically includes:

[0052] S101: The user terminal logs in to the forest right carbon sink subsystem and registers the forest right certificate;

[0053] S102: The forest rights carbon sink subsystem queries and compares the linked government forest rights data with the forest rights certificate of the user, and feeds back the query and comparison results. The forestry staff will confirm the rights, and the confirmed forest rights certificate will be synchronously sent to the satellite remote sensing subsystem, the expert evaluation subsystem, the third-party carbon value calculation subsystem and the National Environmental Protection Department Environmental Certification Center subsystem, and stored in the blockchain for evidence storage;

[0054] S103: The satellite remote sensing subsystem takes photos of the designated area of ​​the forest right certificate after the confirmation of the right, analyzes the forest information based on the photos, and simultaneously sends the photos and corresponding forest information to the forest right carbon sink subsystem, the expert evaluation subsystem, the third-party carbon value calculation subsystem and the National Environmental Protection Department Environmental Certification Center subsystem, and stores them in the blockchain for evidence storage;

[0055] S104: The expert evaluation subsystem evaluates the forest rights certificate, forest land photos and corresponding forest land information after confirmation, generates an expert report, and simultaneously sends it to the forest rights carbon sink subsystem, the third-party carbon value calculation subsystem and the National Environmental Protection Department Environmental Certification Center subsystem, and stores it in the blockchain for evidence storage;

[0056] S105: The third-party carbon value calculation subsystem conducts carbon value assessment on the forest rights certificate, forest land photos, corresponding forest land information and expert reports after the confirmation of the rights, generates a carbon value assessment report, and simultaneously sends it to the forest rights carbon sink subsystem and the National Environmental Protection Department Environmental Certification Center subsystem, and stores it in the blockchain for evidence storage;

[0057] S106: The Environmental Certification Center subsystem of the Ministry of Environmental Protection reviews and certifies the forest rights certificate, forest land photos, relevant forest land information, expert reports and carbon value assessment reports, and generates a certification report based on the confirmed forest rights certificate, forest land photos and relevant forest land information, expert reports and carbon value assessment reports. The report is sent to the forest rights carbon sink subsystem and stored in the blockchain for evidence storage;

[0058] S107: After receiving the certification report sent by the Environmental Certification Center subsystem of the Ministry of Environmental Protection, the forest rights carbon sink subsystem sends a message to the user terminal to collect the corresponding carbon ticket.

[0059] The storage of evidence in the blockchain mentioned in each step specifically includes:

[0060] Hash the file to be stored to obtain the corresponding file hash value, obtain the corresponding business summary data and electronic signature of each subsystem, and obtain the timestamp required for chaining from the National Time Service Center;

[0061] The file hash value, business summary data, electronic signature and timestamp are sent to the blockchain’s smart contract for on-chain verification and storage.

[0062] In addition, the blockchain-based forestry carbon sink carbon asset public service method also includes:

[0063] The user terminal enters the carbon ticket information into the carbon exchange subsystem for trading, pledging, cashing and offsetting. The carbon exchange subsystem verifies the carbon ticket blockchain through the carbon ticket information. If the verification passes, trading, pledging, cashing and offsetting can be carried out.

[0064] The carbon exchange subsystem verifies the carbon ticket blockchain through carbon ticket information, including:

[0065] According to the carbon ticket information, the evidence data is obtained from the blockchain evidence platform.

[0066] The evidence data includes the hash value, business summary data, electronic signature and timestamp of the original file; the original file includes the forest right certificate after confirmation, photos of the forest land and corresponding forest land information, expert reports, carbon value assessment reports and certification reports;

[0067] The original file is hashed and compared with the hash value of the original file obtained on the blockchain to verify the stored data.

[0068] like Figure 2 , another embodiment of the present invention provides a schematic diagram of an embodiment of a public service system for forestry carbon sinks and carbon assets based on blockchain; the system includes: a forest right carbon sink subsystem 201, a satellite remote sensing subsystem 202, an expert evaluation subsystem 203, a third-party carbon value calculation subsystem 204 and a National Environmental Protection Department Environmental Certification Center subsystem 206, specifically:

[0069] The forest right carbon sink subsystem 201 registers the forest right certificate according to the login of the user terminal; and queries and compares the linked government forest right data with the forest right certificate of the user, and feeds back the query and comparison results. The forestry staff confirms the right, and sends the confirmed forest right certificate to the satellite remote sensing subsystem 202, the expert evaluation subsystem 203, the third-party carbon value calculation subsystem 204 and the National Environmental Protection Department Environmental Certification Center subsystem 205 synchronously, and stores it in the blockchain for evidence storage; after receiving the certification report sent by the National Environmental Protection Department Environmental Certification Center subsystem, send a message to the user terminal to collect the corresponding carbon ticket;

[0070] The satellite remote sensing subsystem 202 takes photos of the designated area of ​​the forest right certificate after the confirmation of the right, analyzes the forest information based on the photos, and simultaneously sends the photos and corresponding forest information to the forest right carbon sink subsystem 201, the expert evaluation subsystem 203, the third-party carbon value calculation subsystem 204 and the National Environmental Protection Department Environmental Certification Center subsystem 205, and stores them in the blockchain for evidence storage;

[0071] The expert evaluation subsystem 203 evaluates the forest right certificate, forest land photos and corresponding forest land information after confirmation, generates an expert report, and simultaneously sends it to the forest right carbon sink subsystem 201, the third-party carbon value calculation subsystem 204 and the National Environmental Protection Department Environmental Certification Center subsystem 205, and stores it in the blockchain for evidence storage;

[0072] The third-party carbon value calculation subsystem 204 evaluates the carbon value of the forest right certificate, forest land photos, corresponding forest land information and expert reports after the confirmation of the right, generates a carbon value evaluation report, and simultaneously sends it to the forest right carbon sink subsystem 201 and the National Environmental Protection Department Environmental Certification Center subsystem 205, and stores it in the blockchain for evidence storage;

[0073] The Environmental Certification Center Subsystem 205 of the Ministry of Environmental Protection reviews and certifies the forest rights certificate, forest land photos, corresponding forest land information, expert reports and carbon value assessment reports after confirmation, and generates a certification report, which is sent to the forest rights carbon sink subsystem and stored in the blockchain for evidence storage.

[0074] Specifically, the system further includes a carbon exchange subsystem 206, specifically:

[0075] The user terminal enters the carbon ticket information into the carbon exchange subsystem for trading, pledging, cashing and offsetting. The carbon exchange subsystem verifies the carbon ticket blockchain through the carbon ticket information. If the verification passes, trading, pledging, cashing and offsetting can be carried out.

[0076] Specifically, the storage of evidence in the blockchain includes:

[0077] Hash the file to be stored to obtain the corresponding file hash value, obtain the corresponding business summary data and electronic signature of each subsystem, and obtain the timestamp required for chaining from the National Time Service Center;

[0078] The file hash value, business summary data, electronic signature and timestamp are sent to the blockchain’s smart contract for on-chain verification and storage.

[0079] Specifically, the carbon exchange subsystem performs carbon ticket blockchain verification through carbon ticket information, specifically including:

[0080] According to the carbon ticket information, the evidence data is obtained from the blockchain evidence platform.

[0081] The evidence data includes the hash value, business summary data, electronic signature and timestamp of the original file; the original file includes the forest right certificate after confirmation, photos of the forest land and corresponding forest land information, expert reports, carbon value assessment reports and certification reports;

[0082] The original file is hashed and compared with the hash value of the original file obtained on the blockchain to verify the stored data.

[0083] like Figure 3 As shown, an embodiment of the present invention provides an electronic device, including a memory 310, a processor 320, and a computer program 311 stored in the memory 320 and executable on the processor 320. When the processor 320 executes the computer program 311, the blockchain-based forestry carbon sink carbon asset public service method provided in an embodiment of the present invention is implemented.

[0084] In the specific implementation process, when the processor 320 executes the computer program 311, it can achieve Figure 1 Any implementation manner in the corresponding embodiments.

[0085] Since the electronic device introduced in this embodiment is a device used to implement a data processing device in the embodiment of the present invention, based on the method introduced in the embodiment of the present invention, technical personnel in this field can understand the specific implementation method of the electronic device of this embodiment and its various variations. Therefore, how the electronic device implements the method in the embodiment of the present invention is not introduced in detail here. As long as the equipment used by technical personnel in this field to implement the method in the embodiment of the present invention falls within the scope of protection of the present invention.

[0086] See also Figure 4 , Figure 4 A schematic diagram of an embodiment of a computer-readable storage medium provided in an embodiment of the present invention.

[0087] like Figure 4 As shown, this embodiment provides a computer-readable storage medium 400, on which a computer program 411 is stored. When the computer program 411 is executed by a processor, the public service method for forestry carbon sink carbon assets based on blockchain provided by an embodiment of the present invention is implemented;

[0088] In a specific implementation process, when the computer program 411 is executed by a processor, Figure 1 Any implementation manner in the corresponding embodiments.

[0089] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0090] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0091] The above is only a specific implementation of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A public service method for forestry carbon sink carbon assets based on blockchain, characterized in that: The following steps are involved: The user terminal logs into the forest rights carbon sink subsystem and registers the forest rights certificate; The forest rights carbon sink subsystem queries and compares the linked government forest rights data with the forest rights certificate of the user, and feeds back the query and comparison results. The forestry staff will confirm the rights, and the confirmed forest rights certificate will be synchronously sent to the satellite remote sensing subsystem, expert evaluation subsystem, third-party carbon value calculation subsystem and the National Environmental Protection Department Environmental Certification Center subsystem, and stored in the blockchain for evidence storage; The satellite remote sensing subsystem takes photos of the designated area of ​​the forest right certificate after the confirmation of the right, analyzes the forest information based on the photos, and simultaneously sends the photos and corresponding forest information to the forest right carbon sink subsystem, expert evaluation subsystem, third-party carbon value calculation subsystem and the National Environmental Protection Department Environmental Certification Center subsystem, and stores them in the blockchain for evidence storage; The expert evaluation subsystem evaluates the forest rights certificate, forest land photos and corresponding forest land information after confirmation, generates an expert report, and simultaneously sends it to the forest rights carbon sink subsystem, the third-party carbon value calculation subsystem and the National Environmental Protection Department Environmental Certification Center subsystem, and stores it in the blockchain for evidence storage; The third-party carbon value calculation subsystem conducts carbon value assessment on the forest rights certificate, forest land photos, corresponding forest land information and expert reports after the confirmation of the right, generates a carbon value assessment report, and simultaneously sends it to the forest rights carbon sink subsystem and the National Environmental Protection Department Environmental Certification Center subsystem, and stores it in the blockchain for evidence storage; The Environmental Certification Center subsystem of the Ministry of Environmental Protection reviews and electronically signs the forest rights certificate, forest land photos, corresponding forest land information, expert reports, and carbon value assessment reports after confirmation, generates a certification report, sends it to the forest rights carbon sink subsystem, and stores it in the blockchain for evidence storage; After receiving the certification report from the Environmental Certification Center Subsystem of the Ministry of Environmental Protection, the Forest Rights Carbon Sink Subsystem sends a message to the user terminal to claim the corresponding carbon ticket; The storage of evidence in the blockchain specifically includes: Hash the file to be stored to obtain the corresponding file hash value, obtain the corresponding business summary data and electronic signature of each subsystem, and obtain the timestamp required for chaining from the National Time Service Center; The file hash value, business summary data, electronic signature and timestamp are sent to the blockchain’s smart contract for on-chain verification and storage.

2. According to a blockchain-based forestry carbon sink carbon asset public service method according to claim 1, it is characterized in that: The method further comprises: The user terminal enters the carbon ticket information into the carbon exchange subsystem for trading, pledging, cashing and offsetting. The carbon exchange subsystem verifies the carbon ticket blockchain through the carbon ticket information. If the verification passes, trading, pledging, cashing and offsetting can be carried out.

3. According to a blockchain-based forestry carbon sink carbon asset public service method according to claim 2, it is characterized in that: The carbon exchange subsystem verifies the carbon ticket blockchain through the carbon ticket information, specifically including: According to the carbon ticket information, the evidence data is obtained from the blockchain evidence platform. The evidence data includes the hash value, business summary data, electronic signature and timestamp of the original file; the original file includes the forest right certificate after confirmation, photos of the forest land and corresponding forest land information, expert reports, carbon value assessment reports and certification reports; The original file is hashed and compared with the hash value of the original file obtained on the blockchain to verify the stored data.

4. A public service system for forestry carbon sinks and carbon assets based on blockchain, characterized in that: include: The system includes: forest rights carbon sink subsystem, satellite remote sensing subsystem, expert evaluation subsystem, third-party carbon value calculation subsystem and National Environmental Protection Department Environmental Certification Center subsystem, specifically: The forest rights carbon sink subsystem registers the forest rights certificate according to the user terminal login; and queries and compares the linked government forest rights data with the user's forest rights certificate, and feedbacks the query and comparison results. The forestry staff will confirm the rights and send the confirmed forest rights certificate to the satellite remote sensing subsystem, expert evaluation subsystem, third-party carbon value calculation subsystem and the National Environmental Protection Department Environmental Certification Center subsystem simultaneously, and store it in the blockchain for evidence storage; after receiving the certification report sent by the National Environmental Protection Department Environmental Certification Center subsystem, send a message to the user terminal to collect the corresponding carbon ticket; The satellite remote sensing subsystem takes photos of the designated area of ​​the forest right certificate after the confirmation of the right, analyzes the forest information based on the photos, and simultaneously sends the photos and corresponding forest information to the forest right carbon sink subsystem, expert evaluation subsystem, third-party carbon value calculation subsystem and the National Environmental Protection Department Environmental Certification Center subsystem, and stores them in the blockchain for evidence storage; The expert evaluation subsystem evaluates the forest rights certificate, forest land photos and corresponding forest land information after confirmation, generates an expert report, and simultaneously sends it to the forest rights carbon sink subsystem, the third-party carbon value calculation subsystem and the National Environmental Protection Department Environmental Certification Center subsystem, and stores it in the blockchain for evidence storage; The third-party carbon value calculation subsystem conducts carbon value assessment on the forest rights certificate, forest land photos, corresponding forest land information and expert reports after the confirmation of the right, generates a carbon value assessment report, and simultaneously sends it to the forest rights carbon sink subsystem and the National Environmental Protection Department Environmental Certification Center subsystem, and stores it in the blockchain for evidence storage; The Environmental Certification Center subsystem of the Ministry of Environmental Protection reviews and electronically signs the forest rights certificate, forest land photos, corresponding forest land information, expert reports, and carbon value assessment reports after confirmation, generates a certification report, sends it to the forest rights carbon sink subsystem, and stores it in the blockchain for evidence storage; The storage of evidence in the blockchain specifically includes: Hash the file to be stored to obtain the corresponding file hash value, obtain the corresponding business summary data and electronic signature of each subsystem, and obtain the timestamp required for chaining from the National Time Service Center; The file hash value, business summary data, electronic signature and timestamp are sent to the blockchain’s smart contract for on-chain verification and storage.

5. According to a blockchain-based forestry carbon sink carbon asset public service system according to claim 4, it is characterized in that: The system also includes a carbon exchange subsystem, specifically: The user terminal enters the carbon ticket information into the carbon exchange subsystem for trading, pledging, cashing and offsetting. The carbon exchange subsystem verifies the carbon ticket blockchain through the carbon ticket information. If the verification passes, trading, pledging, cashing and offsetting can be carried out.

6. According to a blockchain-based forestry carbon sink carbon asset public service system according to claim 5, it is characterized in that: The carbon exchange subsystem verifies the carbon ticket blockchain through the carbon ticket information, specifically including: According to the carbon ticket information, the evidence data is obtained from the blockchain evidence platform. The evidence data includes the hash value, business summary data, electronic signature and timestamp of the original file; the original file includes the forest right certificate after confirmation, photos of the forest land and corresponding forest land information, expert reports, carbon value assessment reports and certification reports; The original file is hashed and compared with the hash value of the original file obtained on the blockchain to verify the stored data.

7. An electronic device, characterized in that: It includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor. When the processor executes the computer program, it implements the blockchain-based forestry carbon sink carbon asset public service method as described in any one of claims 1 to 3.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by the processor, it implements the forestry carbon sink carbon asset public service method based on blockchain as described in any one of claims 1-3.

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