CN111210331A - Agricultural supply chain financial service platform based on block chain - Google Patents
Agricultural supply chain financial service platform based on block chain Download PDFInfo
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Abstract
The invention discloses an agricultural supply chain financial service platform based on a block chain, which comprises the following core modules: the system comprises a data layer, a network and consensus layer, an intelligent contract layer, an interface layer, a management layer and an application layer; the data layer carries out digital abstract and algorithm encryption on the data and stores the data in a block chain form; the network and consensus layer is based on a P2P network, and adopts a delegation rights and interests certification DPOS + Byzantine fault-tolerant BFT consensus algorithm. According to the invention, through decentralization or multi-centralization and data non-tamper property, related orders, receipts and deposit certificate information are easy to trace, a public-private key signature mechanism ensures non-repudiation, data uniqueness avoids the occurrence of multiple loan of one debt and multiple sale of one debt, each participant of supply chain finance establishes a trusted channel, the problem of financing pain points is solved, the financial efficiency of the whole supply chain is improved, and all related data are processed through intelligent contracts, are automated, cannot be manually intervened and counterfeited, and can be checked in real time.
Description
Technical Field
The invention relates to a block chain, in particular to an agricultural supply chain financial service platform based on the block chain.
Background
The blockchain is a novel application paradigm integrating technologies such as distributed data storage, point-to-point network transmission, a consensus mechanism, an intelligent contract, data encryption and the like. The block chain provides a distributed general ledger technology, and is mainly characterized by decentralization, tamper resistance, traceability, safety and automatic execution of intelligent contracts.
Currently, block chains are being applied to various industries gradually, the technology development is very fast, application cases are extremely fast to appear, and the block chains are distributed in various fields such as finance, traffic, logistics, health, culture, education, intellectual property, internet of things, e-government affairs, smart cities and industry 4.0.
The block chain technology is currently faced with the biggest obstacles of difficult application, and lacks of effective platform, unified standard and convenient open source achievement (although there are already open source projects of etherhouses, hyperlegger and the like) to support the development of multi-service applications in various fields.
At present, the block chain technology is applied more and more in the field of financial science and technology, but in the field of supply chain finance, because of numerous supply chain financial participants, information is asymmetric, and the financing cost of supply chain related enterprises is high, cooperation is difficult, communication cost is high, and trading efficiency is low.
Disclosure of Invention
The invention aims to provide an agricultural supply chain financial service platform based on a block chain, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
an agricultural supply chain financial service platform based on a block chain comprises the following core modules: the system comprises a data layer, a network and consensus layer, an intelligent contract layer, an interface layer, a management layer and an application layer;
the data layer performs digital abstract and algorithm encryption on the data to ensure the non-tampering property, the safety and the privacy of the data, and stores the data in a block chain form;
the network and the identification layer are based on a P2P network, a delegation rights and interests (DPOS) and Byzantine fault-tolerant BFT identification algorithm is adopted, and on the premise of decentralization, data identification of each block chain node is achieved;
the block link nodes mainly comprise block nodes and synchronous nodes, the number of the nodes is variable, and each node refers to all the nodes. The synchronous nodes composed of other non-core participants synchronize the consensus result of the former;
the intelligent contract layer comprises a system core contract and an upper application custom contract, and supports loading and upgrading at any time;
the system core contract is provided by a block chain-based agricultural supply chain financial service platform and is used for system data configuration and modification;
the upper layer application custom contract is loaded and upgraded by upper layer specific services in real time;
the system core contract and the upper layer application custom contract are isolated and executed, have a complete authority management mechanism, upwards meet service requirements, downwards access a platform data layer, and link all operations in real time;
the interface layer comprises an http interface and a websocket interface and is used for opening the function of the bottom layer of the block chain to an upper layer developer for use;
the management layer is combined with other core modules of the agricultural supply chain financial service platform based on the block chain to provide additional support functions;
the application layer comprises an agricultural supply chain financial service module, a trade financial service module, a credit investigation service module, a transaction clearing service module, a shared economic service module, an insurance service module, a security service module and an Internet of things service module.
The service method of the agricultural supply chain financial service module comprises the following steps: (1) the distributor initiates an order to the buyer, and the order information generates a unique identifier through Hash encryption and links the unique identifier; (2) if the buyer accepts the order, the buyer initiates an application to the white stripe operator; (3) if the operator of the blank bar passes the verification, the order is forwarded to the corresponding farmer, and the blank bar is issued to the farmer; (4) the farmer confirms the order and delivers the goods; (5) the logistics party finishes delivery; (6) selling and repaying after harvesting; (7) farmers use the white stripe to cash up.
As a further preferable scheme of the present invention, the management layer includes a container service module, a log management module, a data management module, an identity privacy module, a supervision and audit module, a cross-chain service module, and a system service module.
As a further preferable scheme of the present invention, the core modules have perfect operation log records, and complete records are performed by the log management module.
As a further preferred scheme of the present invention, the log management module supports real-time query analysis, ensures operation validity and traceability, and all log data support export function; the container service module is an operation and maintenance service of a block chain service bottom technical layer; the data management module is used for managing the block chain data; the identity privacy module comprises the management of accounts, wallets, wallet passwords and secret keys; the supervision auditing module is provided for a supervision auditing department to supervise data; the cross-chain service module is a module for supporting cross-chain.
As a further preferable scheme of the invention, the system service module comprises a system management part and a system monitoring part, and all modules of the whole agricultural supply chain financial service platform based on the block chain are managed, monitored and scheduled.
As a further preferred scheme of the invention, the identity privacy module comprises account management, authority management and key management, a million-level account system, an authority tree system and a key system are managed by combining a hash algorithm and a hardware encryption technology, and after the account, the authority tree and the key are checked and matched by the identity privacy module, a user can access an agricultural supply chain financial service platform based on a block chain; the hardware encryption technology is a technology which is different from the technology of directly processing the encryption technology directly realized by a software technology, and safety protection is performed by accessing professional hardware encryption equipment (a built-in encryption chip, a processing chip and the like) of an external third party.
As a further preferred aspect of the invention, the key is generated using a strong pseudo-random number generator and an ECC algorithm.
As a further preferred scheme of the present invention, the block chain-based agricultural supply chain financial service platform supports cross-chain interaction, the cross-chain interaction includes single interaction based on multiple alliance chains or combined chain interaction of a main chain plus multiple sub chains, and the cross-chain interaction is completed through a message channel and an intelligent contract.
As a further preferred scheme of the present invention, a notary node is introduced for a scenario where the plurality of federation chains individually interact and operate respective services, and the node is responsible for related data auditing, asset circulation, and data circulation.
As a further preferred scheme of the present invention, for a scenario where the main chain and a combined chain of multiple sub-chains interact, a chain-crossing request is initiated by the sub-chains, and request auditing is performed by the main chain.
Compared with the prior art, the invention has the beneficial effects that: the agricultural supply chain financial service platform based on the block chain is structurally designed into a data layer, a network and consensus layer, an intelligent contract layer, an interface layer, a management layer and an application layer, all modules are combined in a plug-in mode, the agricultural supply chain financial service platform has the characteristics of high availability, low coupling and the like, the whole flow of a supply chain is opened, a credible channel is established among all the participants, through decentralization or multi-centralization and data non-tamper property, related orders, receipts and deposit certificate information are easy to trace, a public and private key signature mechanism ensures non-repudiation, data uniqueness avoids the occurrence of the situations of one debt and more credits and one debt and more sales, all the participants of supply chain finance establish the credible channel, the problem of financing pain points is solved, the financial efficiency of the whole supply chain is improved, and all related data are processed through intelligent contracts, are automated, cannot be manually intervened and counterfeited, and can be checked in real time.
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FIG. 1 is a block chain-based architecture diagram of an agricultural supply chain financial service platform according to the present invention.
FIG. 2 is a flowchart of the agricultural supply chain financial services module of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, in an embodiment of the present invention, an agricultural supply chain financial service platform based on a block chain includes the following core modules: the system comprises a data layer, a network and consensus layer, an intelligent contract layer, an interface layer, a management layer and an application layer;
the data layer performs digital abstract and algorithm encryption on the data to ensure the non-tampering property, the safety and the privacy of the data, and stores the data in a block chain form;
the network and the identification layer are based on a P2P (Peer-to-Peer) network, a delegation rights and interests (DPOS) (delayed Proof of Stake) + Byzantin Fault-tolerant BFT (Byzantine Fault tolerance) identification algorithm is adopted, on the premise of decentralization, data identification of each node can be achieved quickly and reliably, node downtime, network delay and malicious node attack can be tolerated, and a platform TPS (single-chain TPS can reach 1 ten thousand) is improved;
the block link nodes mainly comprise block nodes and synchronous nodes, the number of the nodes is variable, and each node refers to all the nodes. The synchronous nodes composed of other non-core participants synchronize the consensus result of the former;
the intelligent contract layer comprises a system core contract and an upper application custom contract, and supports loading and upgrading at any time;
the system core contract is provided by a block chain-based agricultural supply chain financial service platform and is used for system data configuration and modification;
the upper layer application custom contract is loaded and upgraded by upper layer specific services in real time;
the service customization contract is loaded and upgraded by upper layer concrete service in real time, such as service automation contract, evidence-based contract and the like. All contracts are friendly in development, isolated in execution, complete in authority management mechanism, capable of upwards connecting business requirements, downwards accessing a platform data layer and enabling all operations to be linked up in real time.
The interface layer comprises an http interface and a websocket interface and is used for opening the function of the bottom layer of the block chain to an upper layer developer for use;
the management layer is combined with other core modules of the agricultural supply chain financial service platform based on the block chain to provide additional support functions;
the application layer is various application systems developed on the bottom layer system of the agricultural supply chain financial service platform based on the block chain, and comprises an agricultural supply chain financial service module, a trade financial service module, a credit investigation service module, a transaction clearing service module, a shared economic service module, an insurance service module, a security service module and an Internet of things service module.
Referring to fig. 2, the service method of the agricultural supply chain financial service module includes the following steps: (1) the distributor initiates an order to the buyer, and the order information generates a unique identifier through Hash encryption and links the unique identifier; (2) if the buyer accepts the order, the buyer initiates an application to the white stripe operator; (3) if the operator of the blank bar passes the verification, the order is forwarded to the corresponding farmer, and the blank bar is issued to the farmer; (4) the farmer confirms the order and delivers the goods; (5) the logistics party finishes delivery; (6) selling and repaying after harvesting; (7) farmers use the white stripe to cash up.
The white stripe operator is a company structure capable of issuing loan service, and the white stripe is similar to the flower of Beijing white stripe and Paibao.
As a further scheme of the embodiment of the invention, the management layer is combined with a block chain-based agricultural supply chain financial service platform core module to provide additional support functions, including a container service module, a log management module, a data management module, an identity privacy module, a supervision and audit module, a cross-chain service module and a system service module.
As a further scheme of the embodiment of the invention, the core modules have perfect operation log records and complete records are carried out through the log management module.
As a further scheme of the embodiment of the present invention, the log management module supports real-time query analysis and ensures operation validity and traceability, and all log data support export function; the container service module is an operation and maintenance service of a block chain service bottom technical layer; the data management module is used for managing the block chain data; the identity privacy module comprises the management of accounts, wallets, wallet passwords and secret keys; the supervision auditing module is provided for a supervision auditing department to supervise data; the cross-chain service module is a module for supporting cross-chain.
As a further scheme of the embodiment of the invention, the identity privacy module comprises account management, authority management and key management, a million-level account system, an authority tree system and a key system are managed by combining a hash algorithm and a hardware encryption technology, and after the account, the authority tree and the key are checked and matched by the identity privacy module, a user can access an agricultural supply chain financial service platform based on a block chain; the key is generated by using algorithms such as a strong pseudo-random number generator and ECC.
In addition, aiming at data with high confidentiality, a data watermarking technology and a homomorphic encryption technology are introduced for privacy protection
The hardware encryption technology is a technology which is different from the technology of directly processing the encryption technology directly realized by a software technology, and safety protection is performed by accessing professional hardware encryption equipment (a built-in encryption chip, a processing chip and the like) of an external third party.
The agricultural supply chain financial service platform based on the block chain provides service nodes for relevant industry supervision agencies (such as a certificate and supervision agency and an authority agency), and the supervision agencies supervise and audit data and processes according to needs to ensure that the uplink data are real and compliant. In addition, the contents of security policy, authority specification, security evaluation report, security audit report and the like are provided according to needs.
The agricultural supply chain financial service platform based on the block chain supports cross-chain interaction considering different customers and different specific business requirements. The method supports interaction based on a plurality of alliance chains or a combined chain of a main chain and a plurality of sub chains, and cross-chain data interaction is completed through a message channel and an intelligent contract.
And introducing a notary node for a scene that a plurality of alliance chains independently run respective services, wherein the notary node is responsible for related data auditing, asset circulation and data circulation.
For the main chain plus sub-chain scene in the isomorphic mode, a cross-chain request is initiated by the sub-chain, and request auditing is carried out by the main chain.
The system service module mainly comprises a system management and system monitoring part and is used for managing, monitoring, scheduling and the like all modules of the agricultural supply chain financial service platform based on the block chain.
The block chain-based agricultural supply chain financial service platform supports access to various business applications including, but not limited to, supply chain finance, trade finance, credit investigation, transaction clearing, economy sharing, insurance, securities, internet of things, copyright protection, commodity tracing, medical and electronic government affairs and the like through a perfect and friendly interface layer and an open and safe intelligent contract.
On the premise of ensuring that related operations meet industrial specifications and meeting the supervision requirements of governments and supervision departments, the characteristics of decentralization, polycentricization, non-tamper-ability and the like of the block chain technology are fully exerted, and aiming at each specific service scene, the traditional service system is assisted to be matched, so that the industrial pain point is solved, the cost is reduced, the efficiency is improved, and the value is created for customers.
The agricultural supply chain financial service platform based on the block chain is structurally designed into a data layer, a network and consensus layer, an intelligent contract layer, an interface layer, a management layer and an application layer, and all modules are combined in a plug-in mode and have the characteristics of high availability, low coupling and the like.
In conclusion, the agricultural supply chain financial service platform based on the block chain is structurally designed into a data layer, a network and consensus layer, an intelligent contract layer, an interface layer, a management layer and an application layer, all modules are combined in a plug-in mode, the characteristics of high availability, low coupling and the like are achieved, the whole flow of the supply chain is opened, a credible channel is established among all the participants, through decentralization or multi-centralization and data non-tamper property, related orders, receipts and deposit certificate information are easy to trace, a public and private key signature mechanism ensures non-repudiation, data uniqueness avoids the occurrence of the situations of one debt and more credits and one debt and more sales, all the participants of supply chain finance establish the credible channel, the problem of financing pain points is solved, the financial efficiency of the whole supply chain is improved, and all related data are processed through intelligent contracts, are automated, cannot be manually intervened and counterfeited, and can be checked in real time.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. An agricultural supply chain financial service platform based on a block chain is characterized by comprising the following core modules: the system comprises a data layer, a network and consensus layer, an intelligent contract layer, an interface layer, a management layer and an application layer;
the data layer carries out digital abstract and algorithm encryption on the data and stores the data in a block chain form;
the network and the identification layer are based on a P2P network, a delegation rights and interests (DPOS) and Byzantine fault-tolerant BFT identification algorithm is adopted, and on the premise of decentralization, data identification of each block chain node is achieved;
the intelligent contract layer comprises a system core contract and an upper application custom contract, and supports loading and upgrading at any time;
the system core contract is provided by a block chain-based agricultural supply chain financial service platform and is used for system data configuration and modification;
the upper layer application custom contract is loaded and upgraded by upper layer specific services in real time;
the system core contract and the upper layer application custom contract are isolated and executed, have a complete authority management mechanism, upwards meet service requirements, downwards access a platform data layer, and link all operations in real time;
the interface layer comprises an http interface and a websocket interface and is used for opening the function of the bottom layer of the block chain to an upper layer developer for use;
the management layer is combined with other core modules of the agricultural supply chain financial service platform based on the block chain to provide additional support functions;
the application layer comprises an agricultural supply chain financial service module, a trade financial service module, a credit investigation service module, a transaction clearing service module, a shared economic service module, an insurance service module, a security service module and an Internet of things service module.
2. The blockchain-based agricultural supply chain financial services platform according to claim 1, wherein the management layer includes a container service module, a log management module, a data management module, an identity privacy module, a regulatory audit module, a cross-chain service module, and a system service module.
3. The blockchain-based agricultural supply chain financial service platform according to claim 2, wherein the core modules are provided with perfect operation log records, and the complete operation log records are recorded through a log management module.
4. The blockchain-based agricultural supply chain financial service platform according to claim 3, wherein the log management module supports real-time query analysis, guarantees operational validity and traceability, all log data support export function; the container service module is an operation and maintenance service of a block chain service bottom technical layer; the data management module is used for managing the block chain data; the identity privacy module comprises the management of accounts, wallets, wallet passwords and secret keys; the supervision auditing module is provided for a supervision auditing department to supervise data; the cross-chain service module is a module for supporting cross-chain.
5. The blockchain-based agricultural supply chain financial service platform according to claim 2, wherein the system service module comprises a system management part and a system monitoring part, and all modules of the entire blockchain-based agricultural supply chain financial service platform are managed, monitored and scheduled.
6. The blockchain-based agricultural supply chain financial service platform according to claim 2, wherein the identity privacy module comprises account management, authority management and key management, a million-level account system, an authority tree system and a key system are managed by combining a hash algorithm and a hardware encryption technology, and after the account, the authority tree and the key are checked and matched by the identity privacy module, a user can access the blockchain-based agricultural supply chain financial service platform; the hardware encryption technology is used for carrying out security protection by accessing professional hardware encryption equipment of an external third party.
7. The blockchain-based agricultural supply chain financial services platform of claim 5, wherein the key is generated using a strong pseudorandom number generator and an ECC algorithm.
8. The blockchain-based agricultural supply chain financial service platform according to claim 7, wherein the blockchain-based agricultural supply chain financial service platform supports cross-chain interactions, the cross-chain interactions including individual interactions based on multiple federation chains or combined chain interactions of a main chain plus multiple sub-chains, the cross-chain interactions being completed through message channels and smart contracts.
9. The blockchain-based agricultural supply chain financial service platform according to claim 8, wherein a notary node is introduced for a scenario where the plurality of federation chains individually and interactively run respective services, and the notary node is responsible for related data auditing, asset circulation and data circulation; and for the scene of interaction of the main chain and the combined chain of the plurality of sub-chains, the sub-chains initiate a cross-chain request, and the main chain performs request auditing.
10. The blockchain-based agricultural supply chain financial service platform according to any one of claims 1 to 9, wherein the service method of the agricultural supply chain financial service module comprises the following steps: (1) the distributor initiates an order to the buyer, and the order information generates a unique identifier through Hash encryption and links the unique identifier; (2) if the buyer accepts the order, the buyer initiates an application to the white stripe operator; (3) if the operator of the blank bar passes the verification, the order is forwarded to the corresponding farmer, and the blank bar is issued to the farmer; (4) the farmer confirms the order and delivers the goods; (5) the logistics party finishes delivery; (6) selling and repaying after harvesting; (7) farmers use the white stripe to cash up.
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