CN108305075A - A kind of trade document file management system and management method based on block chain - Google Patents
A kind of trade document file management system and management method based on block chain Download PDFInfo
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- 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
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Abstract
The invention discloses a kind of trade document file management system and management method based on block chain, including trade block chain and the trading platform, demander's node, financing node, supervisory node and the block authentication unit that are connected by network with trade block chain；Trade block chain is used in the form of block, store original trade information and with finance, supervise relevant trade flow document, trading platform, demand nodes, financing node and supervisory node are inserted into the block data of original trade information and trade flow document to trade block chain, and block authentication unit is used to distort block data into row information and the verification of information integrity；To reach in trade flows field application block chain technology, so that the independent agencies information security such as both sides of supply and demand, financing, tax revenue, supervision is shared, and the trade flow document of examination ＆ approval, auditing flow generation and original trade document are stored respectively and can carry out distorting the technical purpose of verification and integrity checking.
Description
Technical field
The invention belongs to technical field of information processing, more particularly, to a kind of trade document file management system based on block chain
And management method.
Background technology
Trade is distorted there is information dispersion, easily on current line, reliability it is low and easily by network attack the characteristics of, especially
It is the trust systems disunity of trade each side, this has resulted in the problem that trade information is opaque and investment risk is high.
If number of patent application is CN106878396《Processing method, the device and system of trade information》, by the way that section will be supplied
Relevant all information such as point, demand nodes, platform nodes and supervisory node are stored by the form of block chain, and unification is used in combination
Network common recognition mechanism carries out authentification of message, it is therefore an objective to improve the reliability, tamper-resistance properties and safety of trade information, improve trade
The trade of each side is experienced.But numerous related side's nodes is connected to a block chain by the present invention, when being broadcasted into row information
Extra, unwanted information is sent to uncorrelated node, for example, unwanted tax revenue, financing information can be sent to inspection, inspection
The independent agencies such as epidemic disease, traffic, to cause certain information leakage and security risk；On the other hand, described based on block chain
Trade information processing method can not meet audit of the regulatory agency to trade information, approval process.Therefore, currently based on block chain
Though trade information treatment technology solve information safety, reliability and tamper-resistance properties, existence information abuse, audit examination ＆ approval
The problems such as flow is not suitable for.
Invention content
In order to overcome the above-mentioned deficiencies of the prior art, the present invention is intended to provide a kind of trade document management based on block chain
System and management method, including trade block chain and the trading platform, the Xu Fangjie that are connected by network with trade block chain
Point, financing node, supervisory node and block authentication unit；Trade block chain is used in the form of block, stores original trade letter
Breath and with finance, supervise relevant trade flow document, trading platform, demand nodes, financing node and supervisory node are to trade
Easy block chain is inserted into the block data of original trade information and trade flow document, and block authentication unit is used for block data
The verification with information integrity is distorted into row information；To reach in trade flows field application block chain technology so that supply and demand is double
The independent agencies information security such as side, financing, tax revenue, supervision is shared, and to the trade flow document of examination ＆ approval, auditing flow generation
And original trade document is stored and can carry out distorting the technical purpose of verification and integrity checking respectively.
Technical solution is used in institute of the invention：
A kind of trade document file management system based on block chain, including trade block chain and pass through net with trade block chain
Trading platform, demander's node, financing node, supervisory node and the block authentication unit that network is connected, the trading platform and confession
Fang Jiedian is connected, and trading platform is connected with demander's node, financing node and supervisory node successively by network, financing section
Point is connected with the first privately owned block chain, and the supervisory node is connected with the second privately owned block chain；Wherein：
Supplier's node inputs original trade information to the trading platform；
The trade block chain is used in the form of block, stores original trade information and relevant with financing, supervising
Trade flow document, the trade flow document include trade financing application document, trade financing document, trade supervision application text
Shelves and trade regulatory approval document；
The trading platform, demand nodes, financing node and supervisory node are inserted into trade flow document to trade block chain
Block data；
The first privately owned block chain is used to store the trade financing document handled by financing node；
The second privately owned block chain is used to store the trade regulatory approval document handled by supervisory node；
The block authentication unit is used to distort block data into row information and the verification of information integrity.
Further, the block data includes block head and text, and the block head further comprises working as proparea
Block cryptographic Hash, previous block cryptographic Hash and write time, the text include previous flow document cryptographic Hash and original trade text
Shelves cryptographic Hash.
More preferably, the block information that the described first privately owned block chain is included is used for reference operation.
Further, the trade regulatory approval document includes financing, inspection, quarantine, tax revenue and the conjunction of trade subject matter
Rule property information.
The present invention also proposes a kind of trade document management method based on block chain, includes the following steps：
S100, supplier's node input original trade information；
Original trade information is stored in trade block chain by S200, trading platform；
S300, demander's node generate trade financing application document, and the generating process is based on original trade information, and extracts
Based on original trade information partial information associated with financing；
Trade financing application document is stored in trade block chain by S400, trading platform；
S500, financing node carry out finance process, export trade financing document, then carry out step S601 and step respectively
S602；
Trade financing document is stored in trade block chain by S601, trading platform；
Financing information is output to the first privately owned block chain by S602, financing node；
Application document is supervised in S700, trading platform output trade, is sent to supervisory node for audit, the output process
Based on original trade information, and extracts and be based on original trade information partial information associated with trade supervision；
After S800, supervisory node audit, trade regulatory approval document is exported, then carries out step S901 and step respectively
S902；
Trade regulatory approval document is stored in trade block chain by S901, trading platform；
Trade regulatory approval document is stored in the second privately owned block chain by S902, supervisory node.
Further, finance process described in S500 further comprises following steps：
S5001, financing node receive trade financing application document；
S5002, block authentication unit is sent, checks verification trade financing application document；
S5003, credit is consulted；
S5004, processing debt-credit, financing and guarantee；
S5005, output trade financing document；
S5006, trade financing document is stored in trade block chain and the first privately owned block chain.
Further, the inspection verification process described in S5002 includes to the complete of the affiliated block of trade financing application document
Property verification and multiple forerunner's blocks integrity verification；The cryptographic Hash of forerunner's block is deposited by obtaining current block head
The previous block Hash value field of storage, and then entire block chaining search is obtained；The block integrity verification is to be based on block
The current block cryptographic Hash and block text of head storage.
Further, S5003 consults the first privately owned block chain of the invocation of procedure financing node of credit.
Further, process of supervision described in S800 further comprises following steps：
S8001, supervisory node receive trade and supervise application document；
S8002, block authentication unit is sent, checks verification trade financing document；
S8003, it tests, quarantine, tax revenue, closing rule inspection, exporting trade regulatory approval document；
S8004, trade regulatory approval document is stored in trade block chain and the second privately owned block chain.
Further, the carrier of the trade supervision application document includes paper document, hard disk, CD and mobile storage
Device, trade supervision application document are sent to block authentication unit by trading platform, and verification and complete is distorted into row information
Property verification.
The present invention has the advantages that：
First, the present invention passes through raw under the support that demander's node generates trade financing application document and trading platform
Application document is supervised at trade, the related partial information of original trade document is used only in all processes for generating document, and is aided with
Privately owned block chain technology, to which conveniently control is believed under the premise of retaining block chain reliability, anti-tamper and safety
Breath distribution preferably avoids newly being added block under traditional block chain technical conditions and broadcasts the information leakage brought and potential on a large scale
Security risk problem；
Secondly, by that will finance, audit, the trade flows such as tax revenue trade block chain is recorded in the form of block document,
To solve the contradiction of the examination ＆ approval of trade information, examination and traditional block chain information not between alterability, meet practical
The requirements of process of trade work.
Description of the drawings
Fig. 1 is a kind of composite structural diagram of the trade document file management system based on block chain,
Fig. 2 is a kind of execution flow chart of the trade document management method based on block chain,
Fig. 3 is block data structures figure used in a kind of trade document file management system based on block chain,
Fig. 4 is a kind of business process map of the trade document file management system based on block chain,
Fig. 5 is a kind of financing flow chart of the trade document management method based on block chain,
Fig. 6 is a kind of supervision flow figure of the trade document management method based on block chain.
Specific implementation mode
In order to deepen the understanding of the present invention, present invention will be further explained below with reference to the attached drawings and examples, the implementation
Example is only used for explaining the present invention, does not constitute and limits to protection scope of the present invention.
A kind of trade document file management system based on block chain of the present invention, composed structure is as shown in Figure 1, include
Trade block chain 3, and the trading platform 2, demander's node 4, financing node 5, the prison that are connected by network with trade block chain 3
Pipe node 7 and block authentication unit 9, the trading platform 2 are connected with supplier's node 1, trading platform 2 by network successively with
Demander's node 4, financing node 5 and supervisory node 7 are connected, and financing node 5 is connected with the first privately owned block chain 6, described
Supervisory node 7 is connected with the second privately owned block chain 8.Wherein：
Supplier's node 1 inputs original trade information to trading platform 2；The original trade information includes the hair of trade
Raw time, both sides of supply and demand identity information, cargo or subject matter attribute and tax revenue, financing, transport, safety, inspection and quarantine, conjunction
The integrated informations such as rule property.
Original trade information becomes one group of not revisable block counts by trading platform, final deposit trade block chain
According to.Original trade information is only to supplier's node and demander's node open visit permission, and others are financed, supervised, tax revenue constant pitch
Point only should access wherein related partial information.
The trade block chain 3 in the form of block, store original trade information and with finance, supervise relevant trade
Flow document；The trade flow document include trade financing application document, trade financing document, trade supervision application document and
Trade regulatory approval document；
All blocks of trading platform have unified authentification of message mechanism；When being stored in block chain, it is necessary to by all
A large amount of Hash operations of node obtain satisfactory one group of block cryptographic Hash.In trade document of the present invention application,
Block Hash calculation should use lower degree-of-difficulty factor, reduce Hash operation complexity to ensure good customer experience.
The trading platform 2, demand nodes 4, financing node 5 and supervisory node 7 are inserted into trade flow to trade block chain 3
The block data of document specifically includes trade financing application document, trade financing document, trade supervision application document and trade prison
Pipe audits document.
Supplier's node, demander's node, financing node and supervisory node are application server.
The first privately owned block chain 6 is used to store the trade financing document handled by financing node 5；The financing node
Usually third party financial institution has independent financing, debt-credit and guarantee chain；By by external third party financing system
System, platform are combined with the trading platform by privately owned block chain, in reservation this system block chain reliability, anti-tamper
Under the premise of safety, allows third party financial institution directly to use the not revisable block information exported, easily open
Open up the work such as reference, financing, guarantee.
The second privately owned block chain 8 is used to store the trade regulatory approval document handled by supervisory node 7, is stored
Trade regulatory approval document include time of trade process and trade subject matter, both sides of supply and demand, financing, tax revenue, inspection and quarantine,
The msu messages such as compliance.
The block authentication unit 9 is used to distort block data into row information and the verification of information integrity.
The structure of the block data is as shown in figure 3, including block head B1 and text B2, the block head B1 into one
Step includes current block cryptographic Hash B101, previous block cryptographic Hash B102 and write time B103, and the text B2 includes previous
Flow document cryptographic Hash B201 and original trade document cryptographic Hash B202.
Block verification process includes the integrity verification of the integrity verification and multiple forerunner's blocks to block.
The cryptographic Hash of forerunner's block is the previous block Hash value fields of B102 by obtaining current block head B1 storages,
And then entire block chaining search is obtained；It is calculated by forerunner step by step, multistage forerunner's block of current block can be obtained, and working as
Front nodal point or respective nodes carry out the integrity verification of respective block.
The block integrity verification is based on the block head B1 current block cryptographic Hash B101 stored and block text
B2, in the case of block head and text message are fixed, the current block cryptographic Hash exported abides by specific hash algorithm
Rule, once any one in text B2, write time B103 and previous block cryptographic Hash B102 is different that is, is tampered, then
Data collision must occur with current block cryptographic Hash B101 after block verification algorithm, to know that this block content is usurped
Change.
In the case that only current block and its multiple forerunner's blocks all meet integrity verification, just it is considered that working as
Preceding block is credible and not tampered.
Inconsistent for the loss of data and data that prevent data tampering from bringing, block chain need to ensure that block data must be more
Multiple backups are stored between a node；In trade document file management system of the present invention, supplier's node, demander's node, financing
Node and supervisory node and trade block chain carry out repeated storage to identical data；If data reliability still dislikes insufficient,
Then it is contemplated that data redundancy and N+1 Hot Spare strategies.
In a kind of more preferably embodiment, the block information that the first privately owned block chain 6 is included is used for reference operation,
This block information has not alterability, is used to have higher credibility when reference operation.
The present invention under the support that demander's node generates trade financing application document and trading platform by generating trade
Application document is supervised, the related partial information of original trade document is used only in all processes for generating document, and is aided with privately owned area
Block chain technology, to conveniently control information distribution under the premise of retaining block chain reliability, anti-tamper and safety,
It preferably avoids block is newly added under traditional block chain technical conditions and broadcasts the information leakage brought and potential safety wind on a large scale
Dangerous problem.
The present invention also proposes that a kind of trade document management method based on block chain includes the following steps as described in Figure 2：
S100, supplier's node input original trade information, and information input mode includes man-machine interface input, third party's net
It stands to import and be imported with file；
Original trade information is stored in trade block chain by S200, trading platform；
S300, demander's node generate trade financing application document, and the generating process is based on original trade information, and extracts
Based on original trade information partial information associated with financing；Trade financing application document includes at least the use for applying for financing
On the way, the information such as the amount of money, time limit, mortgage, mode of repayment, guarantee；
Trade financing application document is stored in trade block chain by S400, trading platform；
S500, financing node carry out finance process, export trade financing document, then carry out step S601 and step respectively
S602；
Trade financing document is stored in trade block chain by S601, trading platform；
Financing information is output to the first privately owned block chain by S602, financing node；
Application document is supervised in S700, trading platform output trade, is sent to supervisory node for audit；The output process
Based on original trade information, and extracts and be based on original trade information partial information associated with trade supervision；
After S800, supervisory node audit, trade regulatory approval document is exported, then carries out step S901 and step respectively
S902；
Trade regulatory approval document is stored in trade block chain by S901, trading platform；
Trade regulatory approval document is stored in the second privately owned block chain by S902, supervisory node.
In conclusion a kind of more intuitive business process map of trade document management method based on block chain as shown in figure 4,
Main operation flow is as follows：
P1, supplier's node processing input original trade information D1 in supplier's node, and are transmitted to trading platform；
P2, trading platform processing, trading platform receive original trade information D1, and storage is to trade block chain D2 and transmits
To demander's node；
P3, demander's node processing receive original trade information and then generate trade financing application document D3, be then delivered to
Financing node；
P4, financing node processing, receive trade financing application document D3, carry out finance process, then export trade financing
Document D 5 and the privately owned block chain D4 of trade block chain D2 and first are respectively stored into, generate trade supervision application document D6 transmission
To supervisory node；
P5, reference operation, financing node carry out reference fortune using the block data being stored in the first privately owned block chain D4
It calculates；
P6, supervisory node audit, supervisory node receive trade and supervise application document D6, are financed, tax revenue, examine inspection
Epidemic disease closes output trade regulatory approval document D 7 after the processes such as rule inspection, and it is private to be then respectively stored into trade block chain D2 and second
There is block chain D8.
The present invention will be by that will finance, audit, the trade flows document such as tax revenue is recorded in trade area in the form of block data
Block chain, to solve the contradiction of the examination ＆ approval of trade information, examination and traditional block chain information not between alterability, with full
The requirements of process of full border trade work.
Finance process described in S500 is as shown in figure 5, include the following steps in the above-described embodiments：
S5001, financing node receive trade financing application document；
S5002, block authentication unit is sent, checks verification trade financing application document；
S5003, credit is consulted；Credit is consulted by calling the block counts of the first privately owned block chain factually in financing node
It is existing；
S5004, processing debt-credit, financing and guarantee；
S5005, output trade financing document, the trade financing document exported include funds source, debt-credit, mortgage, load
The information such as guarantor；
S5006, trade financing document is stored in trade block chain and the first privately owned block chain.
Wherein：Inspection verification process described in S5002 includes testing the integrality of the affiliated block of trade financing application document
The integrity verification of card and multiple forerunner's blocks；The cryptographic Hash of forerunner's block is stored by obtaining current block head
Previous block Hash value field, and then entire block chaining search is obtained；The block integrity verification is to be based on block head
The current block cryptographic Hash and block text of storage.
S5003 consults the first privately owned block chain of the invocation of procedure financing node of credit.
Process of supervision described in S800 is as shown in fig. 6, include the following steps：
S8001, supervisory node receive trade and supervise application document；
S8002, block authentication unit is sent, checks verification trade financing document；
S8003, it tests, quarantine, tax revenue, closing rule inspection, exporting trade regulatory approval document；
S8004, trade regulatory approval document is stored in trade block chain and the second privately owned block chain.
The carrier of the trade supervision application document includes paper document, hard disk, CD and mobile memory, the trade
Supervision application document is sent to block authentication unit by trading platform, and verification and integrity verification are distorted into row information；In view of
The specific works form of trade supervision, the trade supervision application document need to have access trading platform directly to carry out distorting verification
With the ability of integrity verification.
What the embodiment of the present invention was announced is preferred embodiment, and however, it is not limited to this, the ordinary skill people of this field
Member understands the spirit of the present invention easily according to above-described embodiment, and makes different amplification and variation, but as long as not departing from this
The spirit of invention, all within the scope of the present invention.
Claims (10)
1. a kind of trade document file management system based on block chain, which is characterized in that including trade block chain, and and trade area
Trading platform, demander's node, financing node, supervisory node and the block authentication unit that block chain is connected by network, the trade
Easy platform is connected with supplier's node, trading platform by network successively with demander's node, finance node and supervisory node phase
Connection, financing node are connected with the first privately owned block chain, and the supervisory node is connected with the second privately owned block chain；Wherein：
Supplier's node inputs original trade information to the trading platform；
The trade block chain be used in the form of block, store original trade information and with finance, supervise relevant trade
Flow document, the trade flow document include trade financing application document, trade financing document, trade supervision application document and
Trade regulatory approval document；
The trading platform, demand nodes, financing node and supervisory node are inserted into the area of trade flow document to trade block chain
Block number evidence；
The first privately owned block chain is used to store the trade financing document handled by financing node；
The second privately owned block chain is used to store the trade regulatory approval document handled by supervisory node；
The block authentication unit is used to distort block data into row information and the verification of information integrity.
2. a kind of trade document file management system based on block chain according to claim 1, which is characterized in that the block
Data include block head and text, when the block head includes current block cryptographic Hash, previous block cryptographic Hash and write-in
Between, the text includes previous flow document cryptographic Hash and original trade document cryptographic Hash.
3. a kind of trade document file management system based on block chain according to claim 1, which is characterized in that described first
The block information that privately owned block chain is included is used for reference operation.
4. a kind of trade document file management system based on block chain according to claim 1-3 any one, feature exist
In the trade regulatory approval document includes financing, inspection, quarantine, tax revenue and the compliance information of trade subject matter.
5. the trade document management method based on block chain according to any one of claims 1-4, which is characterized in that packet
Include following steps：
S100, supplier's node input original trade information；
Original trade information is stored in trade block chain by S200, trading platform；
S300, demander's node generate trade financing application document, and the generating process is based on original trade information, and extracts and be based on
Original trade information partial information associated with financing；
Trade financing application document is stored in trade block chain by S400, trading platform；
S500, financing node carry out finance process, export trade financing document, then carry out step S601 and step respectively
S602；
Trade financing document is stored in trade block chain by S601, trading platform；
Financing information is output to the first privately owned block chain by S602, financing node；
Application document is supervised in S700, trading platform output trade, is sent to supervisory node for audit, the output process is based on
Original trade information, and extract and be based on original trade information partial information associated with trade supervision；
After S800, supervisory node audit, trade regulatory approval document is exported, then carries out step S901 and step S902 respectively；
Trade regulatory approval document is stored in trade block chain by S901, trading platform；
Trade regulatory approval document is stored in the second privately owned block chain by S902, supervisory node.
6. the trade document management method according to claim 5 based on block chain, which is characterized in that finance described in S500
Process includes the following steps：
S5001, financing node receive trade financing application document；
S5002, block authentication unit is sent, checks verification trade financing application document；
S5003, credit is consulted；
S5004, processing debt-credit, financing and guarantee；
S5005, output trade financing document；
S5006, trade financing document is stored in trade block chain and the first privately owned block chain.
7. the trade document management method according to claim 5 based on block chain, which is characterized in that described in S5002
Check that verification process includes to the complete of the integrity verification of the affiliated block of trade financing application document and multiple forerunner's blocks
Property verification, the cryptographic Hash of forerunner's block is the previous block Hash value field by obtaining the storage of current block head, and then right
Entire block chaining search obtains；The block integrity verification is the current block cryptographic Hash stored based on block head and block
Text.
8. the trade document management method according to claim 5 or 6 based on block chain, which is characterized in that S5003 is consulted
First privately owned block chain of the invocation of procedure financing node of credit.
9. the trade document management method according to claim 5 based on block chain, which is characterized in that supervised described in S800
Process includes the following steps：
S8001, supervisory node receive trade and supervise application document；
S8002, block authentication unit is sent, checks verification trade financing document；
S8003, it tests, quarantine, tax revenue, closing rule inspection, exporting trade regulatory approval document；
S8004, trade regulatory approval document is stored in trade block chain and the second privately owned block chain.
10. the trade document management method according to claim 5 based on block chain, which is characterized in that the trade prison
The carrier of pipe application document includes paper document, hard disk, CD and mobile memory, and the trade supervision application document passes through trade
Easy platform is sent to block authentication unit, and verification and integrity verification are distorted into row information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810188427.7A CN108305075A (en) | 2018-03-07 | 2018-03-07 | A kind of trade document file management system and management method based on block chain |
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| CN109101832A (en) * | 2018-07-24 | 2018-12-28 | 安徽问法信息技术有限公司 | A kind of testament electronic data management method based on block chain |
| CN109101607A (en) * | 2018-08-03 | 2018-12-28 | 上海点融信息科技有限责任公司 | For searching for the method, apparatus and storage medium of block chain data |
| CN109299763A (en) * | 2018-10-17 | 2019-02-01 | 国网江苏省电力有限公司无锡供电分公司 | Anti-tampering and counterfeiting method of paper secret-related carrier based on RFID key chain |
| CN109377338A (en) * | 2018-10-17 | 2019-02-22 | 中链科技有限公司 | Financial product processing method and processing device based on block chain |
| CN109993250A (en) * | 2019-04-03 | 2019-07-09 | 大陆投资(中国)有限公司 | Elevator maintenance management system |
| WO2020078095A1 (en) * | 2018-10-15 | 2020-04-23 | 阿里巴巴集团控股有限公司 | Method and apparatus for issuing digital assets, method and apparatus for transferring digital assets, and method and apparatus for realizing online financing |
| CN111126883A (en) * | 2020-03-23 | 2020-05-08 | 中国计量大学 | Method and device for managing research and development project information based on block chain and electronic equipment |
| CN111353152A (en) * | 2018-12-20 | 2020-06-30 | 北京京东尚科信息技术有限公司 | Block chain-based document management method, device, system and storage medium |
| CN111461662A (en) * | 2020-04-02 | 2020-07-28 | 北京东方金信科技有限公司 | Examination and approval system based on block chain technology |
| CN111506909A (en) * | 2020-04-13 | 2020-08-07 | 深圳微众信用科技股份有限公司 | Silver tax data interaction method and system |
| CN112231401A (en) * | 2020-09-27 | 2021-01-15 | 中国建设银行股份有限公司 | Model management method and device based on block chain |
| CN112907366A (en) * | 2019-12-03 | 2021-06-04 | 微观(天津)科技发展有限公司 | Cross-border trade financial service method and device based on block chain and storage medium |
| CN112950369A (en) * | 2019-12-03 | 2021-06-11 | 微观(天津)科技发展有限公司 | Cross-border transaction information processing method and device based on block chain and storage medium |
| CN112950198A (en) * | 2019-12-03 | 2021-06-11 | 微观(天津)科技发展有限公司 | Cross-border trade supervision method and device based on block chain and storage medium |
| CN113011804A (en) * | 2019-12-03 | 2021-06-22 | 微观(天津)科技发展有限公司 | Cross-border trade logistics business processing method and device based on block chain and storage medium |
| CN113011956A (en) * | 2019-12-03 | 2021-06-22 | 微观(天津)科技发展有限公司 | Cross-border trade tax-related information management method and device based on block chain |
| CN117114686A (en) * | 2023-08-01 | 2023-11-24 | 中资国恒科技有限公司 | Credit supervision method and system based on bulk transaction platform |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109101832A (en) * | 2018-07-24 | 2018-12-28 | 安徽问法信息技术有限公司 | A kind of testament electronic data management method based on block chain |
| CN109101607A (en) * | 2018-08-03 | 2018-12-28 | 上海点融信息科技有限责任公司 | For searching for the method, apparatus and storage medium of block chain data |
| WO2020078095A1 (en) * | 2018-10-15 | 2020-04-23 | 阿里巴巴集团控股有限公司 | Method and apparatus for issuing digital assets, method and apparatus for transferring digital assets, and method and apparatus for realizing online financing |
| CN109299763A (en) * | 2018-10-17 | 2019-02-01 | 国网江苏省电力有限公司无锡供电分公司 | Anti-tampering and counterfeiting method of paper secret-related carrier based on RFID key chain |
| CN109377338A (en) * | 2018-10-17 | 2019-02-22 | 中链科技有限公司 | Financial product processing method and processing device based on block chain |
| CN111353152A (en) * | 2018-12-20 | 2020-06-30 | 北京京东尚科信息技术有限公司 | Block chain-based document management method, device, system and storage medium |
| CN109993250A (en) * | 2019-04-03 | 2019-07-09 | 大陆投资(中国)有限公司 | Elevator maintenance management system |
| CN112950369A (en) * | 2019-12-03 | 2021-06-11 | 微观(天津)科技发展有限公司 | Cross-border transaction information processing method and device based on block chain and storage medium |
| CN112907366A (en) * | 2019-12-03 | 2021-06-04 | 微观(天津)科技发展有限公司 | Cross-border trade financial service method and device based on block chain and storage medium |
| CN112950198A (en) * | 2019-12-03 | 2021-06-11 | 微观(天津)科技发展有限公司 | Cross-border trade supervision method and device based on block chain and storage medium |
| CN113011804A (en) * | 2019-12-03 | 2021-06-22 | 微观(天津)科技发展有限公司 | Cross-border trade logistics business processing method and device based on block chain and storage medium |
| CN113011956A (en) * | 2019-12-03 | 2021-06-22 | 微观(天津)科技发展有限公司 | Cross-border trade tax-related information management method and device based on block chain |
| CN111126883A (en) * | 2020-03-23 | 2020-05-08 | 中国计量大学 | Method and device for managing research and development project information based on block chain and electronic equipment |
| CN111126883B (en) * | 2020-03-23 | 2024-01-26 | 中国计量大学 | Block chain-based research and development project information management method and device and electronic equipment |
| CN111461662A (en) * | 2020-04-02 | 2020-07-28 | 北京东方金信科技有限公司 | Examination and approval system based on block chain technology |
| CN111506909A (en) * | 2020-04-13 | 2020-08-07 | 深圳微众信用科技股份有限公司 | Silver tax data interaction method and system |
| CN112231401A (en) * | 2020-09-27 | 2021-01-15 | 中国建设银行股份有限公司 | Model management method and device based on block chain |
| CN117114686A (en) * | 2023-08-01 | 2023-11-24 | 中资国恒科技有限公司 | Credit supervision method and system based on bulk transaction platform |
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