CN110472970B - Block chain-based block pre-generation method and system - Google Patents
Block chain-based block pre-generation method and system Download PDFInfo
- Publication number
- CN110472970B CN110472970B CN201810434812.5A CN201810434812A CN110472970B CN 110472970 B CN110472970 B CN 110472970B CN 201810434812 A CN201810434812 A CN 201810434812A CN 110472970 B CN110472970 B CN 110472970B
- Authority
- CN
- China
- Prior art keywords
- block
- node
- new block
- transaction information
- transaction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
- G06Q20/3825—Use of electronic signatures
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
- G06Q20/3829—Payment protocols; Details thereof insuring higher security of transaction involving key management
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/40—Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
- G06Q20/401—Transaction verification
Landscapes
- Business, Economics & Management (AREA)
- Engineering & Computer Science (AREA)
- Accounting & Taxation (AREA)
- Computer Security & Cryptography (AREA)
- Finance (AREA)
- Strategic Management (AREA)
- Physics & Mathematics (AREA)
- General Business, Economics & Management (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention discloses a block pre-generation method and a system based on a block chain, when the operation of a target node meets a preset condition, the target node votes in a block chain network, selects a representative node which can participate in the establishment of a new block and verifies the legality of the node and the new block, starting from the 0 th second that the new block is established, the node on the new block immediately carries out transaction processing each time receiving a transaction message, when the transaction processing is finished, a block mark is marked and the new block is placed, the node on the new block continuously receives and processes the transaction message until the cycle time of the new block is finished, and finally a final signature of the new block is marked, when the transaction processing is split into fragments from a centralized type, namely, the block time is fully utilized, and the problem that the processing time of the transaction itself possibly exceeds the block time is avoided, by the method of generating the block in advance, the stability and reliability of the block chain are greatly improved.
Description
Technical Field
The present invention relates to the field of block chain technology, and in particular, to a block chain-based block pre-generation method and system.
Background
The blockchain is a brand new distributed infrastructure and computing mode that uses blockchain data structures to verify and store data, uses distributed node consensus algorithms to generate and update data, uses cryptographic methods to secure data transmission and access, and uses intelligent contracts composed of automated script codes to program and manipulate data.
In the traditional method, a common block generation method is roughly divided into three steps, and in the first step, transactions needing to be processed in the time of the block are taken out; the second step, verify the legitimacy of these transactions and validate these transactions; third, the transactions are encapsulated into tiles. In this general generation method, when the number of transactions is large, there arises a problem that the processing time of the transaction itself may exceed the block time, thereby causing the block timeout to render the block invalid and fail.
Therefore, the problem that the transaction processing is overtime, so that the block is invalid and fails is a research direction.
Disclosure of Invention
The invention aims to provide a block pre-generation method and a block pre-generation system based on a block chain, which solve the problem of block overtime when transaction processing is split into fragments from a centralized mode, and greatly improve the stability and reliability of the block chain.
A method of pre-generating blocks based on a block chain, the method comprising:
s1, setting a preset condition meeting participation block establishment, when the operation of a target node meets the preset condition, voting by the target node in a block chain network, electing a representative node capable of participating in new block establishment and verifying the legality of the node and a new block, wherein the new block is a legal blank block and does not contain any transaction information, and the target node is any node in the block chain network;
s2, starting from the 0 th second that the new block is established, immediately carrying out transaction processing when a node on the new block receives a transaction message each time, marking a block mark and putting the new block when the transaction processing is finished;
and S3, the node on the new block continuously receives and processes the transaction information until the cycle time of the new block is finished, and finally, the final signature of the new block is printed.
Further, when the operation of the target node meets a preset condition, the target node votes in the blockchain network to generate the new block, including:
and when the participation degree and the right value of the target node reach preset values, screening out the target nodes with participation degrees and right values meeting the standard as representative nodes, and forming a blank legal block based on the target node information.
Further, the verifying the validity of the node and the new block includes:
when one target node sends a data request to other target nodes, dividing the target nodes into trusted nodes and untrusted nodes according to whether the other target nodes feed back the target nodes sending the data request;
and then according to whether the similar feedback data volume made by other target nodes exceeds 1- (n-1)/3 of the total feedback data volume, if so, the certain target node is a legal node, and if not, the certain target node is an illegal node.
And informing the representative node to verify the validity of the new block, and proving the validity of the new block according to a verification result.
Further, starting from the 0 th second when the new block is established, the node on the new block immediately performs transaction processing each time it receives a transaction message, including:
and when the node on the new block begins to time from the period time of the preset block, immediately signing when transaction information is received to obtain a data signature, and storing the node information, the transaction information and the data signature on the storage space of the new block together.
Further, the node on the new block continues to receive and process transaction information until the new block cycle time ends, including:
and processing the transaction information by the node on the new block is carried out along with the preset block cycle time of the new block, and once the block cycle time is used up, the transaction information processing is stopped, the transaction information is not processed any more, and finally the signature of the new block is printed.
A system for using a pre-generated block method includes
A generation module: the generating module is used for screening out target nodes meeting preset conditions, and establishing a new block through verifying the legality, wherein the new block is a blank legal block and does not contain transaction information and a data signature;
an information processing module: the information processing module is used for receiving the transaction information by the target node, verifying the validity of the transaction information, and signing the processed transaction information to obtain a data signature;
a storage module: the storage module is used for storing the target node information, the transaction information and the data signature;
a timing module: the timing module is used for setting block cycle time and timing, and when the block cycle time is used up, the node on the new block cannot continuously receive and process transaction information;
the information transmission module: the information transmission module is used for the nodes to receive the transaction information and transmit channels of the transaction information.
The node generates a blank block in advance through the generating module, and when the node receives transaction information, the transaction information is processed through the information processing module; the finally formed signature block is stored in the storage module; the timing module calculates the time required for the entire block generation, signing the block as soon as time is exhausted.
Further, the generating module includes:
a voting unit: voting representative nodes meeting the preset standard from any node of the block chain network according to the preset standard votes for participation degree and right-interest proofs.
Further, the generating module further comprises:
a verification unit: and the verification module is used for informing the representative node of verifying the validity of the blank block and proving the validity of the new block according to a verification result.
Further, the information processing module further includes:
a verification subunit: the representative node is used for informing the representative node to verify the legality of the transaction information transmitted by other nodes, and if the validity is legal, the representative node processes the transaction information.
Further, the information processing module further includes:
a processing subunit: and the system is used for processing the verified and legal transaction information, and signing the processed transaction information to obtain a data signature.
Compared with the prior art, the invention has the following beneficial effects:
(1) when the transaction processing is split into fragments from a centralized mode, namely block time is fully utilized, and the problem that the processing time of the transaction possibly exceeds the block time is solved;
(2) the transaction information processing and the block cycle time are synchronously carried out, so that the problem of block overtime of the block is solved;
(3) by the method of generating the block in advance, the stability and reliability of the block chain are greatly improved.
Drawings
FIG. 1 is a schematic flow chart of a system for pre-generating blocks according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the system module composition of the present invention;
FIG. 3 is a flow chart illustrating pre-generation of blocks according to the present invention.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples. It should be noted that the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1 and fig. 3, a method for generating a block in advance based on a block chain includes:
s1, setting a preset condition meeting participation block establishment, when the operation of a target node meets the preset condition, voting by the target node in a block chain network, electing a representative node capable of participating in new block establishment and verifying node validity, wherein the new block is a legal blank block and does not contain any transaction information, and the target node is any node in the block chain network;
s2, starting from the 0 th second when the new block is established, immediately performing transaction processing each time a node on the new block receives a transaction message, marking a block mark when the transaction processing is completed and putting the new block;
and S3, the node on the new block continuously receives and processes the transaction information until the cycle time of the new block is finished, and finally, the final signature of the new block is printed.
Preferably, when the operation of the target node meets a preset condition, the target node votes in the blockchain network to generate the new block, including:
and when the participation degree and the right value of the target node reach preset values, screening out the target nodes with participation degrees and right values meeting the standard as representative nodes, and forming a blank legal block based on the target node information.
Preferably, the verifying the validity of the node includes:
when one target node sends a data request to other target nodes, dividing the target nodes into trusted nodes and untrusted nodes according to whether the other target nodes feed back the target nodes sending the data request;
and then according to whether the similar feedback data volume made by other target nodes exceeds 1- (n-1)/3 of the total feedback data volume, if so, the certain target node is a legal node, and if not, the certain target node is an illegal node.
Preferably, starting from the 0 th second when the new block is established, the node on the new block immediately performs transaction processing each time it receives a transaction message, including:
when the node on the new block begins to time from the period time of the preset block, immediately signing when transaction information is received to obtain a data signature, and storing the node information, the transaction information and the data signature on the storage space of the new block together.
Preferably, the node on the new block continues to receive and process transaction information until the new block cycle time ends, including:
the node on the new block processes the transaction information according to the preset block cycle time of the new block, once the block cycle time is used up, the transaction information processing is stopped, the transaction information is not processed any more, and finally the signature of the new block is printed.
When the transaction processing is split into fragments from a centralized mode, namely the block time is fully utilized, and the problem that the processing time of the transaction per se may exceed the block time is solved.
As shown in fig. 2, a system for using a pre-generated block method includes: the device comprises a generating module, an information processing module, a storage module, a timing module and an information transmission module.
Preferably, the generating block comprises a voting unit and a verification unit, and nodes in the blockchain network have target nodes which are not trusted or have low participation and interest values.
The voting unit votes and votes for a representative node meeting the preset standard according to the preset standard proved by participation and rights and interests from any node of the block chain network.
And the verification unit is used for informing the representative node to verify the validity of the blank block and proving the validity of the new block according to a verification result.
The voting unit screens out target nodes meeting the conditions by setting preset conditions, and the validity of the representative node is verified by the verification unit, so that a new block is constructed, wherein the new block is a blank legal block and does not contain transaction information and a data signature;
preferably, the information processing module comprises an authentication subunit and a processing subunit.
The verification subunit is used for informing the representative node to verify the validity of the transaction information transmitted by other nodes, and if the validity is valid, processing the transaction information;
the processing subunit is used for processing the verified legal transaction information, and signing the processed transaction information to obtain a data signature.
The information processing module is used for receiving the transaction information by the target node, verifying the legality of the transaction information through the verification subunit, processing the legal transaction information through the processing subunit, and signing the processed transaction information to obtain a data signature;
preferably, the storage module is used for storing the target node information, the transaction information and the data signature;
preferably, the timing module is used for setting block cycle time and timing, and when the block cycle time is used up, the node on the new block cannot continuously receive and process the transaction information;
preferably, the information transmission module is used for the node to receive the transaction information and transmit the channel of the transaction information.
The transaction information processing and the block cycle time are synchronously carried out, so that the problem of block overtime of the block is solved; by the method of generating the block in advance, the stability and reliability of the block chain are greatly improved.
The above-mentioned embodiments are only preferred embodiments of the present invention, and do not limit the technical scope of the present invention, so that the changes and modifications made by the claims and the specification of the present invention should fall within the scope of the present invention.
Claims (10)
1. A method for pre-generating blocks based on a block chain, the method comprising:
s1, setting a preset condition meeting participation block establishment, when the operation of a target node meets the preset condition, voting by the target node in a block chain network, electing a representative node capable of participating in new block establishment and verifying the legality of the node and a new block, wherein the new block is a legal blank block and does not contain any transaction information, and the target node is any node in the block chain network;
s2, starting from the 0 th second when the new block is established, immediately performing transaction processing each time a node on the new block receives a transaction message, marking a block mark when the transaction processing is completed and putting the new block;
and S3, the nodes on the new block continue to receive and process the transaction information until the cycle time of the new block is finished, and finally the final signature of the new block is printed.
2. The method as claimed in claim 1, wherein the step of voting by the target node on the blockchain network to generate the new block when the operation of the target node meets a predetermined condition comprises:
and when the participation degree and the right value of the target node reach preset values, screening out the target nodes with participation degrees and right values meeting the standard as representative nodes, and forming a blank legal block based on the target node information.
3. The method of claim 1, wherein verifying the validity of the node and the new block comprises:
when the certain target node sends a data request to other target nodes, dividing the target nodes into trusted nodes and untrusted nodes according to whether the other target nodes feed back to the target nodes sending the data request or not;
then according to whether the similar feedback data volume made by other target nodes exceeds 1- (n-1)/3 of the total feedback data volume, if so, the certain target node is a legal node, and if not, the certain target node is an illegal node;
and informing the representative node to verify the validity of the new block, and proving the validity of the new block according to a verification result.
4. The method of claim 1, wherein starting from the 0 th second when the new block is established, the node on the new block performs transaction processing each time it receives a transaction message, comprising:
and when the node on the new block begins to time from the period time of the preset block, immediately signing when transaction information is received to obtain a data signature, and storing the node information, the transaction information and the data signature on the new block on the storage space of the new block together.
5. The method of claim 1, wherein the node on the new block continues to receive and process transaction information until the new block cycle time is over, comprising:
and processing the transaction information by the node on the new block is carried out along with the preset block cycle time of the new block, and once the block cycle time is used up, the transaction information processing is stopped, the transaction information is not processed any more, and finally the mark of the new block is marked.
6. A system for utilizing a pre-blocking method, comprising
A generation module: the generating module is used for screening out target nodes meeting preset conditions, and establishing a new block through verifying the legality, wherein the new block is a blank legal block and does not contain transaction information and a data signature;
an information processing module: the information processing module is used for receiving the transaction information by the target node, verifying the validity of the transaction information, and signing the processed transaction information to obtain a data signature;
a storage module: the storage module is used for storing the target node information, the transaction information and the data signature;
a timing module: the timing module is used for setting block cycle time and timing, and when the block cycle time is used up, the node on the new block cannot continuously receive and process transaction information;
the information transmission module: the information transmission module is used for the node to receive the transaction information and transmit the channel of the transaction information;
the node generates a blank block in advance through the generating module, and when the node receives transaction information, the transaction information is processed through the information processing module; the finally formed signature block is stored in the storage module; the timing module calculates the time required for the entire block generation, signing the block as soon as time is exhausted.
7. The system of claim 6, wherein the generating module comprises:
a voting unit: voting representative nodes meeting the preset standard from any node of the block chain network according to the preset standard votes for participation degree and right-interest proofs.
8. The system of claim 7, wherein the generating module further comprises:
a verification unit: and the standard representative node is used for informing the standard representative node to verify the validity of the blank block and proving the validity of the new block according to a verification result.
9. The system of claim 7, wherein the information processing module further comprises:
a verification subunit: and the standard representative node is used for informing the validity verification of the transaction information transmitted by other nodes and processing the transaction information if the transaction information is legal.
10. The system of claim 6, wherein the information processing module further comprises:
a processing subunit: and the system is used for processing the verified and legal transaction information, and signing the processed transaction information to obtain a data signature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810434812.5A CN110472970B (en) | 2018-05-09 | 2018-05-09 | Block chain-based block pre-generation method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810434812.5A CN110472970B (en) | 2018-05-09 | 2018-05-09 | Block chain-based block pre-generation method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110472970A CN110472970A (en) | 2019-11-19 |
| CN110472970B true CN110472970B (en) | 2022-05-10 |
Family
ID=68503228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810434812.5A Active CN110472970B (en) | 2018-05-09 | 2018-05-09 | Block chain-based block pre-generation method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110472970B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112261145B (en) * | 2020-10-22 | 2022-07-12 | 中国联合网络通信集团有限公司 | New block chain generation method and device |
| CN112417038B (en) * | 2020-11-10 | 2021-07-13 | 深圳百纳维科技有限公司 | Asynchronous block construction method and device based on ocean transportation and storage medium |
| CN113518005B (en) * | 2021-06-22 | 2021-11-16 | 腾讯科技（深圳）有限公司 | Block consensus method, device, equipment and storage medium |
| CN116016548A (en) * | 2022-12-05 | 2023-04-25 | 国网天津市电力公司 | Novel power system data trusted acquisition method based on blockchain technology |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106385319A (en) * | 2016-09-29 | 2017-02-08 | 江苏通付盾科技有限公司 | Verification method for information in block chain network and verification system thereof |
| CN106651332A (en) * | 2016-12-29 | 2017-05-10 | 先锋支付有限公司 | Block chain and method for generating new block in block chain |
| CN107016611A (en) * | 2017-03-29 | 2017-08-04 | 杭州秘猿科技有限公司 | A kind of transaction manufacture timeout control method based on block chain |
| CN107067242A (en) * | 2017-03-24 | 2017-08-18 | 钱德君 | Difficulty value creation method in a kind of block chain generating process |
| CN107146087A (en) * | 2017-04-11 | 2017-09-08 | 广东网金控股股份有限公司 | A kind of quick common recognition bookkeeping methods and system based on block chain alliance chain |
| CN107578336A (en) * | 2017-09-29 | 2018-01-12 | 左鹏 | Block chain bookkeeping methods based on dynamic equity |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10348484B2 (en) * | 2016-10-24 | 2019-07-09 | Mastercard International Incorporated | Method and system for fast tracking navigation of blockchains via data manipulation |
-
2018
- 2018-05-09 CN CN201810434812.5A patent/CN110472970B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106385319A (en) * | 2016-09-29 | 2017-02-08 | 江苏通付盾科技有限公司 | Verification method for information in block chain network and verification system thereof |
| CN106651332A (en) * | 2016-12-29 | 2017-05-10 | 先锋支付有限公司 | Block chain and method for generating new block in block chain |
| CN107067242A (en) * | 2017-03-24 | 2017-08-18 | 钱德君 | Difficulty value creation method in a kind of block chain generating process |
| CN107016611A (en) * | 2017-03-29 | 2017-08-04 | 杭州秘猿科技有限公司 | A kind of transaction manufacture timeout control method based on block chain |
| CN107146087A (en) * | 2017-04-11 | 2017-09-08 | 广东网金控股股份有限公司 | A kind of quick common recognition bookkeeping methods and system based on block chain alliance chain |
| CN107578336A (en) * | 2017-09-29 | 2018-01-12 | 左鹏 | Block chain bookkeeping methods based on dynamic equity |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110472970A (en) | 2019-11-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110472970B (en) | Block chain-based block pre-generation method and system | |
| CN106506440B (en) | Method for verifying data integrity | |
| US20190074966A1 (en) | Revocation of cryptographic keys in the absence of a trusted central authority | |
| US7620824B2 (en) | Data communicating apparatus, data communicating method, and program | |
| CN110399424B (en) | Block generation method, block generation device, block chain node and storage medium | |
| WO2018177093A1 (en) | Block chain processing method, accounting node, verification node and storage medium | |
| CN108769230B (en) | Transaction data storage method, device, server and storage medium | |
| CN110912707A (en) | Block chain-based digital certificate processing method, device, equipment and storage medium | |
| US20210021432A1 (en) | Secure device on-boarding, ownership transfer, proof-of-ownership, and mutual authentication system | |
| CN105701372A (en) | Block chain identity construction and verification method | |
| US20170155647A1 (en) | Method for setting up a secure end-to-end communication between a user terminal and a connected object | |
| CN110636051B (en) | Block chain transaction method based on multi-user CA digital certificate | |
| CN112069550B (en) | Electronic contract evidence-storing system based on intelligent contract mode | |
| CN112651830B (en) | Block chain consensus method applied to power resource sharing network | |
| CN114070559B (en) | Industrial Internet of things session key negotiation method based on multiple factors | |
| US20080301793A1 (en) | Apparatus and method of verifying online certificate for offline device | |
| CN106886722A (en) | Big data information processing method and device | |
| WO2019239108A1 (en) | Decentralised authentication | |
| CN113612604A (en) | Asynchronous network-oriented safe distributed random number generation method and device | |
| CN113132401A (en) | Data processing method and device based on block chain | |
| CN111699706A (en) | Master-slave system for communication over bluetooth low energy connections | |
| CN106331971A (en) | Hearing device with model control and associated methods | |
| CN111654481B (en) | Identity authentication method, identity authentication device and storage medium | |
| CN110990790B (en) | Data processing method and equipment | |
| CN116015807A (en) | Lightweight terminal security access authentication method based on edge calculation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210402 Address after: Room 2201, 703c, Desai science and technology building, 9789 Shennan Avenue, high tech Zone community, Yuehai street, Nanshan District, Shenzhen, Guangdong 518000 Applicant after: Benchainless Technology (Shenzhen) Co.,Ltd. Address before: 361000 unit 11, 201, building B, 86 Haijing Road, Xiamen area, China (Fujian) pilot Free Trade Zone, Xiamen City, Fujian Province Applicant before: XIAMEN INSTINCT BLOCKCHAIN TECHNOLOGY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |