CN113077328A - Financing method and device based on block chain, computer equipment and storage medium - Google Patents
Financing method and device based on block chain, computer equipment and storage medium Download PDFInfo
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- CN113077328A CN113077328A CN202010968938.8A CN202010968938A CN113077328A CN 113077328 A CN113077328 A CN 113077328A CN 202010968938 A CN202010968938 A CN 202010968938A CN 113077328 A CN113077328 A CN 113077328A
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- 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
- G06Q40/00—Finance; Insurance; Tax strategies; Processing of corporate or income taxes
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/16—File or folder operations, e.g. details of user interfaces specifically adapted to file systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/18—File system types
- G06F16/182—Distributed file systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
Abstract
The invention relates to the technical field of computer internet, in particular to a supply chain financing method, a device, computer equipment and a storage medium based on a block chain receivable accounts, wherein the method comprises the steps that information interaction between an asset party and a fund party is completed through the block chain, and the interacted information is stored on the block chain; the asset side divides the information in the asset package into abstract information corresponding to the bottom assets and the bottom assets, and stores the abstract information on the block chain; storing the bottom layer asset files in the asset pack on a distributed file server; the financing application request of the asset side carries basic financing information and abstract information of the financing package and is sent to a block chain; the invention solves the problem that the asset pack attached when the financing application request is sent is too large; the integrity of the bottom asset information is ensured, and no tampering is ensured; important interaction information of a fund party and an asset party is stored in the block chain, so that the integrity of transaction information is guaranteed.
Description
Technical Field
The invention relates to the technical field of computer internet, in particular to a receivable account type supply chain financing method and device based on a block chain, computer equipment and a storage medium.
Background
Currently employed in the practice of receivables type supply chain financing is the following work:
the asset party connects the underlying assets, such as: the invoice scanning piece, the electronic invoice, the paper contract, the electronic contract, the receipt scanning piece and the like are digitalized to form a digital asset package.
The insurance manager pushes the digital asset pack to a capital party through a supply chain financial financing application module, and preliminarily puts forward the value, expected financing rate, financing period and financing price for the asset pack.
After receiving the financing application of the asset side, the fund side:
browsing financing application information;
browsing the asset pack content to check the authenticity of the content therein; the value of the asset pack is determined according to the quality of the assets; and pricing the asset pack according to market conditions, and determining the financing rate, the financing period and the financing mode of the asset pack.
In the prior art, a digital asset pack is formed by digitizing underlying assets through a supply chain financial system. The underlying asset information in the asset package is typically a multi-level directory structure, with each level of directory representing a type of credential and a file in the directory representing a credential or credentials.
After the asset pack is compressed, the financing application information and the asset pack are transmitted to a financing application receiving system corresponding to a fund party through a financing application request of a supply chain financial system.
After the fund side checks and finishes the financing application information and the financing package, the financing rate, the financing period and the financing mode corresponding to the financing are transmitted to a supply chain financial system through a network; or by means of an offline contact.
The prior art has the following disadvantages:
since the digital asset package contains original bill information corresponding to the underlying assets, usually one asset package contains thousands of transactions, the asset package will contain tens of thousands of original bill information, and the capacity of the asset package will reach 10-30G. The transmission of asset packs over a network puts a great deal of pressure on the network, and under the condition that the network between the capital and asset parties is not good, the situation of transmission interruption often occurs.
The asset and bill information in the asset pack is a key basis for pricing the asset by a fund party, so that the integrity and the content correctness of the asset pack need to be ensured when the fund party stores the asset pack in the transmission process or after the transmission process is finished. The bill information in the asset pack is prevented from being modified or even deleted. The file storage mode in the existing solution depends on the realization mode of the respective systems of the capital side and the asset side, and a unified storage standard is not available.
A system for a financer and a funder exchanges information over a network, involving: the financing application, the financing application acceptance result, the financing result and the financing result confirm the information of the four main categories. The existing solution also has no uniform standard, and although the correctness of the information can be ensured through a signature technology, the information cannot be ensured not to be deleted maliciously in the storage stage.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the financing method, the financing device, the computer equipment and the storage medium based on the block chain receivable account type supply chain can reduce the transmission size of the financing application message and ensure the safety.
In order to solve the above technical problems, a first technical solution adopted by the present invention is:
a financing method based on a block chain comprises
The information interaction between the asset party and the fund party is completed through a block chain, and the information of the interaction is stored on the block chain;
wherein: the asset side divides the information in the asset package into abstract information corresponding to the bottom assets and the bottom assets, and stores the abstract information on the block chain; storing the bottom layer asset files in the asset pack on a distributed file server;
and the financing application request of the asset side carries basic financing information and abstract information of the financing package and is sent to the block chain.
Preferably, the method comprises:
s101, traversing all underlying asset files under the financing application by a supply chain financial system;
s102, generating summary information for each underlying asset file through an algorithm;
s103, uploading the files with the generated summary information to a distributed file server;
s104, the distributed file server allocates a unique identifier for each uploaded file, and corresponding file content is obtained from the distributed file server through the identifier;
s105, summarizing the abstracts of all the bottom assets and the distributed storage file identifications by the supply chain financial system;
s106, the supply chain financial system combines basic financing information, summarized underlying asset abstract information and stored information into a financing application and sends the financing application to the block link access platform;
s107, linking the financing application information by the block link access platform;
s108, returning an uplink preprocessing result by the block chain;
s109, the block link platform returns the UL pre-processing result to the supply chain financial system.
Preferably, after the financing application of the asset side is obtained by the funding side through the block chain, the underlying asset file is obtained through underlying asset summary information and storage information in the financing application and through a request distributed file server.
Preferably, the summary information of the bottom asset is a set of summaries of original tickets corresponding to the bottom asset;
and storing original bill information corresponding to the bottom assets in a distributed file server.
Preferably, the algorithm is a hash algorithm.
Preferably, the "information interaction" includes:
s201, the supply chain financial system sends a financing application request to the block link access platform;
s202, calling a financing application API of a block chain by a block chain access platform to chain financing application information;
s203, the block chain returns the result of the uplink preprocessing;
s204, returning a financing application preprocessing result to the supply chain financial system by the block link access platform;
s205, the block link access platform receives a notification that the financing application in the block chain is successful in entering the chain;
s206, the block link access platform sends the financing application request to a system corresponding to the fund party;
s207, the fund side returns the processing result of the financing application to the block link platform;
s208, calling an API of the block chain for storing the application processing result by the block chain access platform, and chaining the financing application processing result;
s209, the block chain returns the uplink preprocessing result;
s210, after receiving a notification that the financing application processing result in the block chain is successfully linked, the block chain access platform calls an API of supply chain finance;
s211, the block link access platform returns the financing application processing result to the supply chain financial system.
Preferably, the "information interaction" includes:
s301, the fund side informs the block link of the financing result to enter a platform;
s302, calling a financing result storage API in a block chain by a block chain access platform, and storing financing result information;
s303, returning an uplink preprocessing result by the block chain;
s304, returning the financing result preprocessing result to the fund side by the block link access platform;
s305, the block link access platform receives a notification that the financing application result in the block chain is successfully accessed;
s306, the block link access platform sends the financing result to a supply chain financial system;
s307, the supply chain financial system returns financing result confirmation information;
s308, calling a storage financing result confirmation API in the block chain by the block chain;
s309, preprocessing a block chain return storage financing result;
s310, the block link access platform receives a notice that the financing application result in the block chain confirms the success of the access chain;
s311, the block link access platform sends the financing result confirmation information to the fund side.
In order to solve the above technical problem, the second technical solution adopted by the present invention is:
a financing device based on a block chain comprises an asset party, a fund party, a supply chain financial system, a block chain access platform and a distributed file server;
the supply chain financial system traverses all bottom-layer asset files under a financing application initiated by an asset party;
generating summary information for each underlying asset file through an algorithm;
uploading the files with the generated abstract information to a distributed file server;
the distributed file server distributes a unique identifier for each uploaded file, and acquires corresponding file content from the distributed file server through the identifier;
the supply chain financial system collects all abstracts of the bottom assets and distributed storage file identifications;
the supply chain financial system combines basic financing information, summarized underlying asset abstract information and stored information into a financing application and sends the financing application to the block link access platform;
linking the financing application information by the block link access platform;
the block chain returns the result of the uplink preprocessing;
and the block chain access platform returns the uplink preprocessing result to the supply chain financial system.
In order to solve the above technical problems, the third technical solution adopted by the present invention is:
a computer comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the above method when executing the computer program.
In order to solve the above technical problem, a fourth technical solution adopted by the present invention is:
a computer-readable storage medium having stored thereon a computer program for executing the above method.
The invention has the beneficial effects that:
1. the problem that the asset pack attached when the financing application request is sent is too large and is difficult to transmit among systems through the Internet is solved; the transfer size of the financing application message is greatly reduced from the original dozens of G to 5-10M;
2. for each underlying asset in the asset pack, such as: abstracting the invoice and the contract, and recording all abstractions to prevent falsification; meanwhile, recording data of the underlying asset abstract to ensure that the data cannot be tampered and deleted; the bottom layer asset information in the asset pack is stored in the distributed storage, so that the security of the file is guaranteed; the abstract information of each bottom asset file is stored in the block chain, so that the integrity of the bottom asset information is ensured, and no tampering is ensured;
3. the method comprises the steps of recording main interaction information related to the completion of business between an asset party and a fund party, storing important interaction information of the fund party and the asset party in a block chain, ensuring that the interaction information between systems is safely stored, ensuring the integrity of transaction information, and ensuring that the transaction information is not tampered and cannot be deleted.
4. The asset side and the fund side carry out information interaction through the block chain; in the receivable supply chain financing scenario, mainly relate to: the financing application, the financing application processing result, the financing result and the financing result confirm the four main information. The four types of information are interacted through the block chain, and all the information is stored in the block chain, so that the purposes that the service interaction information cannot be tampered and cannot be deleted are achieved.
Drawings
FIG. 1 is a flowchart of a process flow of a financing method based on a blockchain according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a financing application flow in a financing method based on a block chain accounts receivable supply chain according to an embodiment of the present invention;
fig. 3 is a flowchart of a financing result flow in a financing method based on a block chain accounts receivable type supply chain according to an embodiment of the present invention.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
In the following examples
The invention stores the asset package and system interaction information in the financing of the receivable type supply chain by combining the HyperLegendFabric block chain and the distributed file storage server.
Block chaining into platform: the block chain access platform is responsible for being in butt joint with the block chain and sending the data of the application program to the specified block chain; the change of data on the block chain can also be monitored, and the application program is informed of the change of data on the block chain.
Asset side (system): various small and medium-sized enterprises with financing requirements on the supply chain.
Funder (system): the fund supplier is the traditional financial structure of banks, securities and the like and the financial institutions of the insurance and the gold exchange and the like.
Bottom-layer asset files: the system comprises transaction information, electric signing contracts, various document images and the like of core enterprises and small and medium-sized enterprises in a supply chain.
Supply chain financial system: the supply chain financial system realizes the online financing of the supply chain by accessing a fund end, an asset end and a third-party service platform. From the links of financing application, footage mortgage, receivables and account, confirmation, electronic signing, intelligent account checking, settlement and the like, the demand of completing supply chain financial business on line by mechanisms such as financing enterprises, core enterprises, insurance companies, financing leasing companies, loan-assisting mechanisms, banks and the like is met, the business handling efficiency is improved, and the borrowing time of the supply chain enterprises is greatly shortened.
Example one
Referring to fig. 1, a financing method based on block chain includes
S100, the financing application request of the asset side carries basic financing information and abstract information of the financing package and is sent to a block chain;
s101, traversing all underlying asset files under the financing application by a supply chain financial system;
s102, generating summary information for each bottom-layer asset file through an MD5 algorithm; the abstract information of the bottom assets is a set of the abstract of the original bill corresponding to the bottom assets; original bill information corresponding to the bottom assets is stored in a distributed file server;
s103, uploading the files with the generated summary information to a distributed file server;
s104, the distributed file server allocates a unique identifier for each uploaded file, and corresponding file content is obtained from the distributed file server through the identifier;
s105, summarizing the abstracts of all the bottom assets and the distributed storage file identifications by the supply chain financial system;
s106, the supply chain financial system combines basic financing information, summarized underlying asset abstract information and stored information into a financing application and sends the financing application to the block link access platform;
s107, linking the financing application information by the block link access platform;
s108, returning an uplink preprocessing result by the block chain;
s109, the block link access platform returns the uplink preprocessing result to the supply chain financial system;
and S110, after the financing application of the asset party is obtained by the fund party through the block chain, the underlying asset file is obtained through underlying asset summary information and storage information in the financing application and through a request distributed file server.
Example two
A financing method based on a block chain comprises
S100, the financing application request of the asset side carries basic financing information and abstract information of the financing package and is sent to a block chain;
s101, traversing all underlying asset files under the financing application by a supply chain financial system;
s102, generating summary information for each underlying asset file through an SHA256 algorithm; the abstract information of the bottom assets is a set of the abstract of the original bill corresponding to the bottom assets; original bill information corresponding to the bottom assets is stored in a distributed file server;
s103, uploading the files with the generated summary information to a distributed file server;
s104, the distributed file server allocates a unique identifier for each uploaded file, and corresponding file content is obtained from the distributed file server through the identifier;
s105, summarizing the abstracts of all the bottom assets and the distributed storage file identifications by the supply chain financial system;
s106, the supply chain financial system combines basic financing information, summarized underlying asset abstract information and stored information into a financing application and sends the financing application to the block link access platform;
s107, linking the financing application information by the block link access platform;
s108, returning an uplink preprocessing result by the block chain;
s109, the block link access platform returns the uplink preprocessing result to the supply chain financial system;
and S110, after the financing application of the asset party is obtained by the fund party through the block chain, the underlying asset file is obtained through underlying asset summary information and storage information in the financing application and through a request distributed file server.
EXAMPLE III
Referring to fig. 2 and 3, an accounts receivable type supply chain financing method based on a block chain, wherein the accounts receivable type supply chain financing includes four main information of a financing application, a financing application processing result, a financing result and a financing result confirmation;
s100, the financing application request of the asset side carries basic financing information and abstract information of the financing package and is sent to a block chain;
s101, traversing all underlying asset files under the financing application by a supply chain financial system;
s102, generating summary information for each underlying asset file through a Hash algorithm; the abstract information of the bottom assets is a set of the abstract of the original bill corresponding to the bottom assets; original bill information corresponding to the bottom assets is stored in a distributed file server;
s103, uploading the files with the generated summary information to a distributed file server;
s104, the distributed file server allocates a unique identifier for each uploaded file, and corresponding file content is obtained from the distributed file server through the identifier;
s105, summarizing the abstracts of all the bottom assets and the distributed storage file identifications by the supply chain financial system;
s106, the supply chain financial system combines basic financing information, summarized underlying asset abstract information and stored information into a financing application and sends the financing application to the block link access platform;
s107, linking the financing application information by the block link access platform;
s108, returning an uplink preprocessing result by the block chain;
s109, the block link access platform returns the uplink preprocessing result to the supply chain financial system;
and S110, after the financing application of the asset party is obtained by the fund party through the block chain, the underlying asset file is obtained through underlying asset summary information and storage information in the financing application and through a request distributed file server.
Wherein the financing application and the financing application processing result generated by the financing application comprise:
s201, the supply chain financial system sends a financing application request to the block link access platform;
s202, calling a financing application API of a block chain by a block chain access platform to chain financing application information;
s203, the block chain returns the result of the uplink preprocessing;
s204, returning a financing application preprocessing result to the supply chain financial system by the block link access platform;
s205, the block link access platform receives a notification that the financing application in the block chain is successful in entering the chain;
s206, the block link access platform sends the financing application request to a system corresponding to the fund party;
s207, the fund side returns the processing result of the financing application to the block link platform;
s208, calling an API of the block chain for storing the application processing result by the block chain access platform, and chaining the financing application processing result;
s209, the block chain returns the uplink preprocessing result;
s210, after receiving a notification that the financing application processing result in the block chain is successfully linked, the block chain access platform calls an API of supply chain finance;
s211, the block link access platform returns the financing application processing result to the supply chain financial system.
Wherein the financing result confirmation generated by the financing result and the financing result comprises:
s301, the fund side informs the block link of the financing result to enter a platform;
s302, calling a financing result storage API in a block chain by a block chain access platform, and storing financing result information;
s303, returning an uplink preprocessing result by the block chain;
s304, returning the financing result preprocessing result to the fund side by the block link access platform;
s305, the block link access platform receives a notification that the financing application result in the block chain is successfully accessed;
s306, the block link access platform sends the financing result to a supply chain financial system;
s307, the supply chain financial system returns financing result confirmation information;
s308, calling a storage financing result confirmation API in the block chain by the block chain;
s309, preprocessing a block chain return storage financing result;
s310, the block link access platform receives a notice that the financing application result in the block chain confirms the success of the access chain;
s311, the block link access platform sends the financing result confirmation information to the fund side.
Example four
A financing device based on a block chain comprises an asset party, a fund party, a supply chain financial system, a block chain access platform and a distributed file server;
the supply chain financial system traverses all bottom-layer asset files under a financing application initiated by an asset party;
generating summary information for each underlying asset file through an algorithm;
uploading the files with the generated abstract information to a distributed file server;
the distributed file server distributes a unique identifier for each uploaded file, and acquires corresponding file content from the distributed file server through the identifier;
the supply chain financial system collects all abstracts of the bottom assets and distributed storage file identifications;
the supply chain financial system combines basic financing information, summarized underlying asset abstract information and stored information into a financing application and sends the financing application to the block link access platform;
linking the financing application information by the block link access platform;
the block chain returns the result of the uplink preprocessing;
and the block chain access platform returns the uplink preprocessing result to the supply chain financial system.
EXAMPLE five
A computer comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of one or both embodiments when executing the computer program.
EXAMPLE six
A computer-readable storage medium storing a computer program for executing the method according to one or two embodiments.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (10)
1. A financing method based on block chain is characterized by comprising
The information interaction between the asset party and the fund party is completed through a block chain, and the information of the interaction is stored on the block chain;
wherein: the asset party splits the information in the asset package into the bottom asset and the abstract information corresponding to the bottom asset; storing the bottom layer asset files in the asset pack on a distributed file server;
and the financing application request of the asset side carries basic financing information and abstract information of the financing package and is sent to the block chain.
2. The blockchain-based financing method according to claim 1, characterized in that the method comprises:
s101, traversing all underlying asset files under the financing application by a supply chain financial system;
s102, generating summary information for each underlying asset file through an algorithm;
s103, uploading the files with the generated summary information to a distributed file server;
s104, the distributed file server allocates a unique identifier for each uploaded file, and corresponding file content is obtained from the distributed file server through the identifier;
s105, summarizing the abstracts of all the bottom assets and the distributed storage file identifications by the supply chain financial system;
s106, the supply chain financial system combines basic financing information, summarized underlying asset abstract information and stored information into a financing application and sends the financing application to the block link access platform;
s107, linking the financing application information by the block link access platform;
s108, returning an uplink preprocessing result by the block chain;
s109, the block link platform returns the UL pre-processing result to the supply chain financial system.
3. The blockchain-based financing method according to claim 2, characterized in that after the financing application of the asset side is obtained by the funder through the blockchain, the funder obtains the underlying asset file through the underlying asset summary information in the financing application, the underlying asset file is stored and obtained by requesting the distributed file server.
4. The blockchain-based financing method according to claim 2, characterized in that the summary information of the underlying assets is a collection of summaries of original tickets corresponding to the underlying assets;
and storing original bill information corresponding to the bottom assets in a distributed file server.
5. The blockchain-based financing method according to claim 2, characterized in that the algorithm is a hash algorithm.
6. The blockchain-based financing method according to claim 1, characterized in that the "information interaction" includes:
s201, the supply chain financial system sends a financing application request to the block link access platform;
s202, calling a financing application API of a block chain by a block chain access platform to chain financing application information;
s203, the block chain returns the result of the uplink preprocessing;
s204, returning a financing application preprocessing result to the supply chain financial system by the block link access platform;
s205, the block link access platform receives a notification that the financing application in the block chain is successful in entering the chain;
s206, the block link access platform sends the financing application request to a system corresponding to the fund party;
s207, the fund side returns the processing result of the financing application to the block link platform;
s208, calling an API of the block chain for storing the application processing result by the block chain access platform, and chaining the financing application processing result;
s209, the block chain returns the uplink preprocessing result;
s210, after receiving a notification that the financing application processing result in the block chain is successfully linked, the block chain access platform calls an API of supply chain finance;
s211, the block link access platform returns the financing application processing result to the supply chain financial system.
7. The blockchain-based financing method according to claim 1, characterized in that the "information interaction" includes:
s301, the fund side informs the block link of the financing result to enter a platform;
s302, calling a financing result storage API in a block chain by a block chain access platform, and storing financing result information;
s303, returning an uplink preprocessing result by the block chain;
s304, returning the financing result preprocessing result to the fund side by the block link access platform;
s305, the block link access platform receives a notification that the financing application result in the block chain is successfully accessed;
s306, the block link access platform sends the financing result to a supply chain financial system;
s307, the supply chain financial system returns financing result confirmation information;
s308, calling a storage financing result confirmation API in the block chain by the block chain;
s309, preprocessing a block chain return storage financing result;
s310, the block link access platform receives a notice that the financing application result in the block chain confirms the success of the access chain;
s311, the block link access platform sends the financing result confirmation information to the fund side.
8. A financing device based on a block chain is characterized by comprising an asset party, a fund party, a supply chain financial system, a block chain access platform and a distributed file server;
the supply chain financial system traverses all bottom-layer asset files under a financing application initiated by an asset party;
generating summary information for each underlying asset file through an algorithm;
uploading the files with the generated abstract information to a distributed file server;
the distributed file server distributes a unique identifier for each uploaded file, and acquires corresponding file content from the distributed file server through the identifier;
the supply chain financial system collects all abstracts of the bottom assets and distributed storage file identifications;
the supply chain financial system combines basic financing information, summarized underlying asset abstract information and stored information into a financing application and sends the financing application to the block link access platform;
linking the financing application information by the block link access platform;
the block chain returns the result of the uplink preprocessing;
and the block chain access platform returns the uplink preprocessing result to the supply chain financial system.
9. A computer comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of any one of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program for executing the method of any of claims 1-7.
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