CN110807684B - Block chain technology-based sales document storage method, device, server and medium - Google Patents
Block chain technology-based sales document storage method, device, server and medium Download PDFInfo
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Abstract
The invention discloses a method, a device, a server and a medium for storing sales documents of a block chain technology, wherein the method comprises the following steps: automatically and randomly distributing a unique digital Identity (ID) for each successfully registered platform user, so that each platform user is used as a node of a block chain platform; the unique digital identity ID comprises a public key and a private key; all intelligent contracts or contract abstracts generated by both trading parties are saved through the nodes since the platform is built; the data structure of the intelligent contract consists of a contract information Hash abstract, money amounts of both parties, IDs of both parties of a transaction and a transaction timestamp. According to the teaching of the above embodiment, the invention can improve the safety and the effectiveness of the sale document.
Description
Technical Field
The invention relates to the technical field of block chains, in particular to a method, a device, a server and a medium for storing sales documents of a block chain technology.
Background
In the prior art, in the transaction of batch issuing industry, because the buyer and the seller often write the documents by hand, if the documents are lost or the handwriting cannot be identified, the two parties cannot accurately obtain the real transaction record when the quality problem occurs, and the operation management of the merchant and the buyer is greatly influenced.
Although some wholesale merchants print sales documents through management software at present, the problem of data tampering still exists, the validity of the data cannot be approved by buyers and sellers, and the data cannot be used as effective evidence when disputes occur.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a sales document storage method, device, server and medium of the block chain technology, which can improve the security and effectiveness of the sales document.
An embodiment of the present invention provides a method for storing a sales document based on a block chain technology, including:
automatically and randomly distributing a unique digital Identity (ID) for each successfully registered platform user, so that each platform user is used as a node of a block chain platform; the unique digital Identity (ID) comprises a public key and a private key;
all intelligent contracts or contract abstracts generated by both trading parties are saved through the nodes since the platform is built; the data structure of the intelligent contract consists of a contract information Hash abstract, money amounts of both parties, IDs of both parties of a transaction and a transaction timestamp.
The platform user comprises an appointed merchant, a central merchant and a common merchant, and the corresponding nodes are an appointed merchant node, a central merchant node and a common merchant node respectively;
the special merchant node is used for packaging any generated intelligent contract into a block;
the central merchant node is a central node built by relying on an Aliyun platform and is used for storing a large number of intelligent contracts;
and the common merchant node is used for storing the contract abstract and only providing a data reading function.
Preferably, the method for storing sales documents based on the block chain technology further includes:
and responding to a credit inquiry instruction of the platform user, inquiring the total contract number, the total contract amount and the credit evaluation record of the target enterprise, and calculating the credit index of the target enterprise through a credit record model.
An embodiment of the present invention further provides a device for storing sales documents based on a block chain technology, including:
the registration unit is used for automatically and randomly distributing a unique digital Identity (ID) for each platform user which is successfully registered, so that each platform user is used as a node of the block chain platform; the unique digital Identity (ID) comprises a public key and a private key;
the storage unit is used for storing all intelligent contracts or contract abstracts generated by both trading parties since the platform is built through the node; the data structure of the intelligent contract consists of a contract information Hash abstract, money amounts of both parties, IDs of both parties of a transaction and a transaction timestamp.
The platform user comprises an appointed merchant, a central merchant and a common merchant, and the corresponding nodes are an appointed merchant node, a central merchant node and a common merchant node respectively;
the special merchant node is used for packaging any generated intelligent contract into a block;
the central merchant node is a central node built by relying on an Aliyun platform and is used for storing a large number of intelligent contracts;
and the common merchant node is used for storing the contract abstract and only providing a data reading function.
Preferably, the sales document storage device based on the block chain technology further includes:
and the query unit is used for responding to a credit query instruction of the platform user, querying the total contract number, the total contract amount and the target enterprise credit recommendation record of the target enterprise, and calculating the target enterprise credit index through the credit record model.
An embodiment of the present invention further provides a server, including:
one or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement a method of sales document storage based on blockchain technology as described above.
An embodiment of the present invention further provides a computer-readable storage medium, where the storage medium includes a stored computer program, and when the computer program runs, the apparatus on which the storage medium is located is controlled to execute the method for storing a sales document based on block chain technology as described above.
The embodiment of the invention has the following beneficial effects:
the platform users automatically distribute unique digital identity IDs (including public keys and private keys) after registration, each user is used as a node of a block chain platform, all intelligent contracts or contract digests generated by both trading parties after the platform is built are stored from the beginning of generation by the nodes, and an intelligent contract data structure of 'contract information Hash digest + both-party amount + both-party ID + trading timestamp' is formed, so that the safety and the effectiveness of the sales documents are improved.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a method for storing sales documents based on a block chain technology according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a method for storing sales documents based on a block chain technology according to a preferred embodiment of the present invention;
fig. 3 is a schematic structural diagram of a sales document storage apparatus based on a block chain technology according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a sales document storage apparatus based on a block chain technology according to a preferred embodiment 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.
It should be understood that the step numbers used herein are for convenience of description only and are not intended as limitations on the order in which the steps are performed.
It is to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The terms "comprises" and "comprising" indicate the presence of the described features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
The term "and/or" refers to and includes any and all possible combinations of one or more of the associated listed items.
Please refer to fig. 1.
An embodiment of the invention provides a sales document storage method based on a block chain technology, which comprises the following steps:
s100, automatically and randomly distributing a unique digital Identity (ID) for each successfully registered platform user, so that each platform user is used as a node of a block chain platform. The unique digital identity ID includes a public key and a private key.
The platform users comprise special merchants, central merchants and common merchants, and the corresponding nodes are special merchant nodes, central merchant nodes and common merchant nodes respectively.
And the special merchant node is used for packaging any generated intelligent contract into a block.
Specifically, the main participating units comprise special merchants purchasing a fast batch system, the main function is that intelligent contracts generated in a certain period are packaged into blocks, and the probability of malicious node generation is reduced to the maximum extent by using hundreds of merchants with good credit records.
The central merchant node is a central node built by relying on an Aliyun platform and is used for storing a large number of intelligent contracts.
And the common merchant node is used for storing the contract abstract and only providing a data reading function.
Specifically, the main participants are numerous medium and small wholesale merchants using the platform, only contract abstract information is stored, and then the contract occupation storage space is reduced, but the platform child nodes only have a viewing function and cannot write data, and all contract information is written into a block chain by the alliance nodes after being broadcasted.
The platform can be a cooperative purchasing cloud platform and is built based on a common recognition mechanism of workload certification. In order to construct a group of decentralized timestamp servers on the basis of point-to-point, a Hash algorithm is introduced, the digital Identity (ID), the transaction timestamp, the transaction amount information and the like of both parties of a contract transaction are written into an intelligent contract, and when the digital signatures of both parties are confirmed, the intelligent contract is broadcasted and stored to the whole network.
The signing of the smart contract relies on the digital identity ID, which is in essence a pair of public and private keys. If the buyer A wants to initiate a purchase offer to the supplier B, A encrypts the digital contract with the public key of B, signs the contract with its own private key, and broadcasts to the whole network. Only B can decrypt the contract by using the private key of the B, and after B decrypts the contract and confirms that the contract is correct, the public key of A is used for confirming the signature, and the private key of B is used for signing the contract. Such an electronic contract, if confirmed successfully, is broadcast to the network-wide nodes. The platform special merchant node packs and writes the transaction in a certain time into the block chain.
And S200, all intelligent contracts or contract abstracts generated by both trading parties are saved through the nodes built by the platform. The data structure of the intelligent contract consists of a contract information Hash abstract, money amounts of both parties, IDs of both parties of a transaction and a transaction timestamp.
The platform users automatically distribute unique digital identity IDs (including public keys and private keys) after registration, each user is used as a node of a block chain platform, all intelligent contracts or contract digests generated by both trading parties after the platform is built are stored from the beginning of generation by the nodes, and an intelligent contract data structure of 'contract information Hash digest + both-party amount + both-party ID + trading timestamp' is formed, so that the safety and the effectiveness of the sales documents are improved.
Please refer to fig. 2.
In a preferred embodiment, the method for storing a sales document based on a block chain technology further includes:
s300, responding to a credit inquiry instruction of the platform user, inquiring the total contract number, the total contract amount and the credit evaluation record of the target enterprise, and calculating the credit index of the target enterprise through a credit record model.
The platform consists of a semi-union and semi-public blockchain system and a cooperative purchasing cloud platform. The enterprise inquires related enterprise credit indexes through a platform credit retrieval engine, the enterprise credit indexes are obtained through intelligent contract information of a block chain, the enterprise can inquire credit of users who join a block chain cooperative purchasing platform through the retrieval engine, and the inquiry content comprises: the total contract number, the total contract amount, the enterprise credit evaluation record and the like, and the system calculates the enterprise credit index through the credit record model.
The enterprise user can determine the historical credit record of the transaction party through the information, support purchasing decision, solve the problems of high purchasing cost and the like caused by asymmetric information in enterprise purchasing, and completely avoid the influence of human factors through the transaction credit index. Meanwhile, all purchasing data of an enterprise can be stored in a cloud platform, cloud storage of PB-level enterprise contract information is achieved through distributed storage technologies and distributed resource management technologies such as Hadoop, Mapreduce and Spark and real-time Streaming technical means such as Storm and Streaming, large data analysis of an enterprise purchasing link is achieved based on R, Python and other large data analysis technologies and data visualization models, and support is provided for enterprise production management decisions.
It should be noted that the cooperative procurement cloud platform includes two parts, the first part is a blockchain part, and the second part is a cooperative procurement cloud platform part.
The first block chain technology part comprises a special merchant node intelligent contract system, a central node intelligent contract system and a common merchant platform intelligent contract system. The intelligent contract issuing and receiving method is characterized in that the intelligent contract issuing and receiving method is deployed on an application layer, functions are the same, a public key of a digital identity ID is an address, a unique private key corresponding to the public key is locally stored, and issuing, receiving and digital signature confirmation of the intelligent contract can be carried out. All historical transaction information is stored in the special merchant node and the central node, only summary information of platform transactions is stored in a common merchant platform, and meanwhile, the special merchant node and the central node are responsible for packaging transactions in a certain period to form a new block through a common recognition mechanism of the POW.
And secondly, the cooperative procurement cloud platform part comprises an enterprise credit query engine, a block chain cooperative procurement platform decision support system and a data visualization BI system of the block chain cooperative procurement platform. The enterprise credit platform can inquire the enterprise total contract number, the total contract amount, the enterprise credit evaluation record and the like by calling the intelligent contract information on the block chain, and calculate the enterprise credit index. The block chain collaborative purchasing platform decision support system provides support for enterprise purchasing management and supplier management by analyzing big data of massive enterprise transaction information and establishing a relevant decision model. The block chain collaborative purchasing platform visualization BI provides a means and a model based on big data analysis and display for an enterprise based on historical transaction data of the enterprise, and provides support for the whole production, operation and management of the enterprise.
Please refer to fig. 3.
An embodiment of the present invention further provides a device for storing sales documents based on a block chain technology, including:
a registration unit 10, configured to automatically and randomly assign a unique digital identity ID to each platform user who has successfully registered, so that each platform user serves as a node of the blockchain platform. The unique digital identity ID includes a public key and a private key.
The platform users comprise special merchants, central merchants and common merchants, and the corresponding nodes are special merchant nodes, central merchant nodes and common merchant nodes respectively.
And the special merchant node is used for packaging any generated intelligent contract into a block.
Specifically, the main participating units comprise special merchants purchasing a fast batch system, the main function is that intelligent contracts generated in a certain period are packaged into blocks, and the probability of malicious node generation is reduced to the maximum extent by using hundreds of merchants with good credit records.
The central merchant node is a central node built by relying on an Aliyun platform and is used for storing a large number of intelligent contracts.
And the common merchant node is used for storing the contract abstract and only providing a data reading function.
Specifically, the main participants are numerous medium and small wholesale merchants using the platform, only contract summary information is stored, and then the contract occupation storage space is reduced, but the platform child nodes only have a viewing function and cannot write data, and all contract information is written into a block chain by the alliance nodes after being broadcasted.
The platform can be a cooperative purchasing cloud platform and is built based on a common recognition mechanism of workload certification. In order to construct a group of decentralized timestamp servers on the basis of point-to-point, a Hash algorithm is introduced, the digital Identity (ID), the transaction timestamp, the transaction amount information and the like of both parties of a contract transaction are written into an intelligent contract, and when the digital signatures of both parties are confirmed, the intelligent contract is broadcasted and stored to the whole network.
The signing of the smart contract relies on the digital identity ID, which is in fact a pair of public and private keys. If the buyer A wants to initiate a purchase offer to the supplier B, A encrypts the digital contract with the public key of B, signs the contract with its own private key, and broadcasts to the whole network. Only B can decrypt the contract by using the private key of the B, and after B decrypts the contract and confirms that the contract is correct, the public key of A is used for confirming the signature, and the private key of B is used for signing the contract. Such an electronic contract, if confirmed successfully, is broadcast to the network-wide nodes. The platform special merchant node packs and writes the transaction in a certain time into the block chain.
And the storage unit 20 is used for storing all intelligent contracts or contract abstracts generated by both trading parties since the platform is built through the nodes. The data structure of the intelligent contract consists of a contract information Hash abstract, money amounts of both parties, IDs of both parties of a transaction and a transaction timestamp.
The platform users automatically distribute unique digital identity IDs (including public keys and private keys) after registration, each user serves as a node of a block chain platform, all intelligent contracts or contract digests generated by both trading parties since the platform is built are stored by the nodes from the beginning of generation, and an intelligent contract data structure of 'contract information Hash digest + both-party amount + both-party ID + trading timestamp' is formed, so that the safety and the effectiveness of a sales receipt are improved.
Please refer to fig. 4.
In a preferred embodiment, the sales document storage apparatus based on the block chain technology further includes:
and the query unit 30 is used for responding to a credit query instruction of the platform user, querying the total contract number, the total contract amount and the target enterprise credit recommendation record of the target enterprise, and calculating the target enterprise credit index through the credit record model.
The platform consists of a semi-union and semi-public blockchain system and a cooperative purchasing cloud platform. The enterprise inquires related enterprise credit indexes through a platform credit retrieval engine, the enterprise credit indexes are obtained through intelligent contract information of a block chain, the enterprise can inquire credit of users who join a block chain cooperative purchasing platform through the retrieval engine, and the inquiry content comprises: the total contract number, the total contract amount, the enterprise credit evaluation record and the like, and the system calculates the enterprise credit index through the credit record model.
The enterprise user can determine the historical credit record of the transaction party through the information, support purchasing decision, solve the problems of high purchasing cost and the like caused by asymmetric information in enterprise purchasing, and completely avoid the influence of human factors through the transaction credit index. Meanwhile, all purchasing data of an enterprise can be stored in a cloud platform, cloud storage of PB-level enterprise contract information is achieved through distributed storage technologies and distributed resource management technologies such as Hadoop, Mapreduce and Spark and real-time Streaming technical means such as Storm and Streaming, large data analysis of an enterprise purchasing link is achieved based on R, Python and other large data analysis technologies and data visualization models, and support is provided for enterprise production management decisions.
It should be noted that the cooperative procurement cloud platform includes two parts, the first part is a blockchain part, and the second part is a cooperative procurement cloud platform part.
The first block chain technology part comprises a special merchant node intelligent contract system, a central node intelligent contract system and a common merchant platform intelligent contract system. The intelligent contract issuing and receiving method is characterized in that the intelligent contract issuing and receiving method is deployed on an application layer, the functions are the same, a public key of the digital identity ID is an address, a unique private key corresponding to the public key is stored locally, and issuing and receiving of the intelligent contract and digital signature confirmation can be carried out. All historical transaction information is stored in the special merchant node and the central node, only summary information of platform transaction is stored in the common merchant platform, and meanwhile, the special merchant node and the central node are responsible for packaging the transaction in a certain period to form a new block through a common mechanism of POW.
And secondly, the cooperative purchasing cloud platform part comprises an enterprise credit query engine, a block chain cooperative purchasing platform decision support system and a block chain cooperative purchasing platform data visualization BI system. The enterprise credit platform can inquire the enterprise total contract number, the total contract amount, the enterprise credit evaluation record and the like by calling the intelligent contract information on the block chain, and calculate the enterprise credit index. The block chain collaborative purchasing platform decision support system provides support for enterprise purchasing management and supplier management by analyzing big data of massive enterprise transaction information and establishing a relevant decision model. The block chain is cooperated with the visual BI of the purchasing platform, based on historical transaction data of the enterprise, a means and a model based on big data analysis and display are provided for the enterprise, and support is provided for the whole production, operation and management of the enterprise.
An embodiment of the present invention further provides a server, including:
one or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement a method of sales slip storage based on blockchain technology as described above.
An embodiment of the present invention further provides a computer-readable storage medium, where the storage medium includes a stored computer program, and when the computer program runs, the apparatus on which the storage medium is located is controlled to execute the method for storing a sales document based on block chain technology as described above.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and can include the processes of the embodiments of the methods described above when the computer program is executed. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (6)
1. A sales document storage method based on a block chain technology is characterized by comprising the following steps:
automatically and randomly distributing a unique digital Identity (ID) for each successfully registered platform user, so that each platform user is used as a node of a block chain platform; the unique digital identity ID comprises a public key and a private key;
all intelligent contracts or contract abstracts generated by both trading parties are saved through the nodes since the platform is built; the data structure of the intelligent contract consists of a contract information Hash abstract, money amounts of both parties, IDs of both parties of a transaction and a transaction timestamp;
the platform user comprises an appointed merchant, a central merchant and a common merchant, and the corresponding nodes are an appointed merchant node, a central merchant node and a common merchant node respectively;
the special merchant node is used for packaging any generated intelligent contract into a block;
the central merchant node is a central node built by relying on an Aliyun platform and is used for storing a large number of intelligent contracts;
and the common merchant node is used for storing the contract abstract and only providing a data reading function.
2. The method for storing sales documents based on block chain technology according to claim 1, further comprising:
and responding to a credit inquiry instruction of the platform user, inquiring the total contract number, the total contract amount and the credit evaluation record of the target enterprise, and calculating the credit index of the target enterprise through a credit record model.
3. A sales document storage device based on block chain technology, comprising:
the registration unit is used for automatically and randomly distributing a unique digital Identity (ID) for each platform user which is successfully registered, so that each platform user is used as a node of the block chain platform; the unique digital identity ID comprises a public key and a private key;
the storage unit is used for storing all intelligent contracts or contract abstracts generated by both trading parties since the platform is built through the nodes; the data structure of the intelligent contract consists of a contract information Hash abstract, money amounts of both parties, IDs of both transaction parties and a transaction timestamp;
the platform user comprises an appointed merchant, a central merchant and a common merchant, and the corresponding nodes are an appointed merchant node, a central merchant node and a common merchant node respectively;
the special merchant node is used for packaging any generated intelligent contract into a block;
the central merchant node is a central node built by relying on an Aliyun platform and is used for storing a large number of intelligent contracts;
and the common merchant node is used for storing the contract abstract and only providing a data reading function.
4. The block chain technology-based sales document storage device of claim 3, further comprising:
and the query unit is used for responding to a credit query instruction of the platform user, querying the total contract number, the total contract amount and the target enterprise credit evaluation record of the target enterprise, and calculating the target enterprise credit index through the credit record model.
5. A server, comprising:
one or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the method of any one of claims 1 to 2 for storing sales documents based on block chain technology.
6. A computer-readable storage medium, wherein the storage medium includes a stored computer program, and wherein when the computer program runs, the apparatus on which the storage medium is located is controlled to execute the method for storing sales documents based on block chain technology according to any one of claims 1 to 2.
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| CN109949019A (en) * | 2018-11-15 | 2019-06-28 | 陕西医链区块链集团有限公司 | Payment system based on medical block chain |
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| CN109523243A (en) * | 2018-11-19 | 2019-03-26 | 济南浪潮高新科技投资发展有限公司 | A kind of mist calculates the date storage method based on block chain under environment |
| CN110111206A (en) * | 2019-04-04 | 2019-08-09 | 国美金控投资有限公司 | It is a kind of that guarantor's Contract Signing system and method is prolonged based on block chain |
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| CN108764877A (en) * | 2018-06-05 | 2018-11-06 | 广州裕如优信息科技有限公司 | Digital asset based on block chain technology really weighs method of commerce |
| CN109949019A (en) * | 2018-11-15 | 2019-06-28 | 陕西医链区块链集团有限公司 | Payment system based on medical block chain |
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