CN110930151A - Transaction processing method and device based on block chain, computing equipment and medium - Google Patents

Abstract

The present disclosure provides a transaction processing method based on a block chain, which is used for a document transaction platform, and the method comprises: generating payment transaction information in response to the importer payment terms, the payment transaction information including funds paid by the importer based on a transaction contract entered by the importer and the exporter, the payment transaction information including payment credentials. And uploading the payment transaction information to the blockchain. In response to the payment transaction inquiry request of the exporter, the payment transaction information is transmitted to the exporter so that the exporter can confirm the authenticity of money. And uploading the bill information of the exporter to the block chain, wherein the bill information comprises goods information and logistics information generated when the exporter fulfills the transaction contract according to the payment transaction information. And responding to the document information inquiry request of the importer, and sending the document information to the importer so that the importer confirms the authenticity of the goods information and the logistics information. The present disclosure also provides a transaction processing apparatus, a computing device, and a computer-readable storage medium.

Description

Transaction processing method and device based on block chain, computing equipment and medium

Technical Field

The present disclosure relates to the field of computer technologies, and in particular, to a transaction processing method based on a blockchain, a transaction processing apparatus based on a blockchain, a computing device, and a computer-readable storage medium.

Background

In a T/T (Telegraphic Transfer) transaction scenario, in order to smoothly perform a transaction and improve transaction efficiency, both parties of the transaction often need to send related transaction information or payment vouchers to each other by way of fax or mail, so as to make the other party sure that they are performing obligations on time and urge the other party to perform their obligations. However, in the way of transmitting the transaction information or the payment certificate by fax or mail, there is a risk that the transaction information or the payment certificate is easily tampered, the security of the transaction information or the payment certificate cannot be guaranteed, and a large space is left for fraud.

Taking the pre-payment transaction mode in the T/T remittance as an example, an importer and an exporter sign a transaction contract, the importer wire-transfers a certain proportion of pre-payment, and sends the payment voucher of the payment to the exporter by mail or fax. The exporter receives the payment receipt of the deposit, prepares the goods and completes the shipment, and then sends the document copy to the importer by mail or fax. The importer pays out the remaining money after receiving the document copy, and the exporter sends the document to the importer for picking up goods after receiving the remaining money.

In this mode, the cost is low due to counterfeit documents and payment vouchers. If the exporter counterfeits the shipping documents and the importer normally pays, the importer is left empty of the shipments and vice versa. This can lead to a decrease in the efficiency of the transaction if both the import and export parties verify the authenticity of the other party's documents or payment vouchers each time.

Disclosure of Invention

One aspect of the present disclosure provides a transaction processing method based on a blockchain, which is used for a document transaction platform, and the method includes: generating payment transaction information in response to an importer payment item, wherein the payment transaction information comprises money paid by the importer based on a transaction contract made by the importer and an exporter, the payment transaction information comprising payment credentials. Uploading the payment transaction information into a blockchain. And responding to the payment transaction inquiry request of the exporter, sending the payment transaction information stored in the block chain to the exporter so that the exporter can confirm the authenticity of money according to the payment transaction information in the block chain. And uploading the bill information of the exporter to the block chain, wherein the bill information comprises goods information and logistics information generated when the exporter fulfills the transaction contract according to the payment transaction information. And responding to a document information query request of the importer, and sending the document information stored in the block chain to the importer so that the importer can confirm the authenticity of the goods information and the logistics information according to the document information in the block chain.

According to an embodiment of the present disclosure, the uploading the payment transaction information to the blockchain includes: and verifying the transaction signature information in the payment transaction information. And calling the block chain to carry out consensus on the payment transaction information in response to the transaction signature information being real information. In response to the blockchain agreeing on the payment transaction information, storing the payment transaction information to the blockchain through the blockchain.

According to an embodiment of the present disclosure, the storing the payment transaction information to the blockchain through the blockchain includes: and calling an intelligent contract in the block chain to perform duplicate removal processing on the payment transaction information to obtain the processed payment transaction information. Storing the processed payment transaction information to the blockchain through the blockchain.

According to an embodiment of the present disclosure, the block chain includes a plurality of nodes. The invoking the blockchain to consensus the payment transaction information comprises: determining, by the blockchain, whether the payment transaction information received by the plurality of nodes is consistent with one another. Determining that the blockchain agrees with the payment transaction information if more than half of the payment transaction information received by the plurality of nodes agree with each other.

According to an embodiment of the present disclosure, the uploading the document information of the exporter to the blockchain includes: and verifying the document signature information in the document information. And calling the block chain to carry out consensus on the bill information in response to the bill signature information being real information. And responding to the block chain to achieve consensus on the bill information, and storing the bill information to the block chain through the block chain.

According to an embodiment of the present disclosure, the storing the document information to the block chain through the block chain includes: and calling an intelligent contract in the block chain to perform duplicate removal processing on the document information to obtain the processed document information. And storing the processed bill information to the block chain through the block chain.

According to an embodiment of the present disclosure, the calling the block chain to perform consensus on the document information includes: determining whether the bill information received by the plurality of nodes is consistent with each other through the blockchain. And if the bill information received by more than half of the nodes in the plurality of nodes is consistent with each other, determining that the block chain agrees with the bill information.

According to an embodiment of the present disclosure, the uploading the payment transaction information to the blockchain includes: invoking the blockchain to calculate a first hash value H based on a plurality of elements in the payment transaction information₁And the first hash value H is used₁Storing into the block chain. The uploading the document information of the exporter into the blockchain comprises: calling the blockchain to calculate a second hash value H based on a plurality of elements in the bill information₂And the second hash value H₂Storing into the block chain.

According to an embodiment of the present disclosure, the method further includes invoking the blockchain to perform, after uploading the payment transaction information into the blockchain: and receiving payment transaction information to be verified. Calculating a third hash value H based on a plurality of elements in the payment transaction information to be verified₁'. Comparing the third hash value H₁' with the first hash value H₁. If the third hash value H₁' with the first hash value H₁And if the payment transaction information is consistent with the payment transaction information to be verified, determining that the payment transaction information to be verified is real information.

According to the embodiment of the present disclosure, the method further includes invoking the blockchain to execute after the document information of the exporter is uploaded into the blockchain: and receiving the bill information to be verified. Calculating a fourth hash value H based on a plurality of elements in the document information to be verified₂'. Comparing the fourth hash value H₂' with the second hash value H₂. If the fourth hash value H₂' with the second hash value H₂And if the bill information to be verified is consistent with the real bill information, determining that the bill information to be verified is real information.

According to the embodiment of the disclosure, the payment transaction information comprises subscription transaction information and remaining money transaction information, and the bill information comprises bill copy information and bill original information. Generating the subscription transaction information based on a prepaid subscription of the importer, wherein the subscription transaction information comprises subscription payment credentials. And uploading the subscription transaction information to the blockchain. And responding to a subscription inquiry request of the exporter, and sending the subscription transaction information stored in the block chain to the exporter. And uploading the bill copy information of the exporter to the block chain, wherein the bill copy information is the goods information and the logistics information generated when the exporter fulfills the transaction contract according to the deposit transaction information. And responding to the document copy inquiry request of the importer, and sending the document copy information stored in the block chain to the importer. Generating the remaining money transaction information in response to the remaining money paid by the importer. And uploading the residual money transaction information to the blockchain. And responding to a residual money inquiry request of the exporter, and sending the residual money transaction information stored in the blockchain to the exporter. And uploading the document original information of the exporter to the block chain, wherein the document original information is generated by the exporter according to the residual money transaction information.

Another aspect of the present disclosure provides a blockchain-based transaction processing apparatus for a document transaction platform, the apparatus including: the device comprises a generating module, a first uploading module, a first sending module, a second uploading module and a second sending module. The generation module generates payment transaction information in response to an importer payment item, wherein the payment transaction information comprises money paid by the importer based on a transaction contract signed by the importer and the exporter, and the payment transaction information comprises payment evidence. The first uploading module uploads the payment transaction information to a blockchain. And the first sending module responds to the payment transaction inquiry request of the exporter and sends the payment transaction information stored in the block chain to the exporter so that the exporter can confirm the authenticity of money according to the payment transaction information in the block chain. And the second uploading module uploads the bill information of the exporter to the block chain, wherein the bill information comprises cargo information and logistics information generated when the exporter fulfills the transaction contract according to the payment transaction information. And the second sending module responds to a bill information query request of the importer and sends the bill information stored in the block chain to the importer so that the importer can confirm the authenticity of the goods information and the logistics information according to the bill information in the block chain.

According to an embodiment of the present disclosure, the first upload module includes: the device comprises a first verification module, a first calling module and a first storage module. The first verification module verifies the transaction signature information in the payment transaction information. And the first calling module is used for calling the block chain to carry out consensus on the payment transaction information in response to the fact that the transaction signature information is real information. A first storage module to store the payment transaction information to the blockchain through the blockchain in response to the blockchain agreeing on the payment transaction information.

According to an embodiment of the present disclosure, the storing the payment transaction information to the blockchain through the blockchain includes: and calling an intelligent contract in the block chain to perform duplicate removal processing on the payment transaction information to obtain the processed payment transaction information. Storing the processed payment transaction information to the blockchain through the blockchain.

According to an embodiment of the present disclosure, the block chain includes a plurality of nodes. The invoking the blockchain to consensus the payment transaction information comprises: determining, by the blockchain, whether the payment transaction information received by the plurality of nodes is consistent with one another. Determining that the blockchain agrees with the payment transaction information if more than half of the payment transaction information received by the plurality of nodes agree with each other.

According to an embodiment of the present disclosure, the second upload module includes: the system comprises a second verification module, a second calling module and a second storage module. And the second verification module is used for verifying the document signature information in the document information. And the second calling module is used for calling the block chain to carry out consensus on the bill information in response to the bill signature information being real information. And the second storage module responds to the block chain to achieve consensus on the bill information and stores the bill information to the block chain through the block chain.

According to an embodiment of the present disclosure, the storing the document information to the block chain through the block chain includes: and calling an intelligent contract in the block chain to perform duplicate removal processing on the document information to obtain the processed document information. And storing the processed bill information to the block chain through the block chain.

According to an embodiment of the present disclosure, the calling the block chain to perform consensus on the document information includes: determining whether the bill information received by the plurality of nodes is consistent with each other through the blockchain. And if the bill information received by more than half of the nodes in the plurality of nodes is consistent with each other, determining that the block chain agrees with the bill information.

According to an embodiment of the present disclosure, the uploading the payment transaction information to the blockchain includes: invoking the blockchain to calculate a first hash value H based on a plurality of elements in the payment transaction information₁And the first hash value H is used₁Storing into the block chain. The uploading the document information of the exporter into the blockchain comprises: invokingThe blockchain calculates a second hash value H based on a plurality of elements in the document information₂And the second hash value H₂Storing into the block chain.

According to an embodiment of the present disclosure, the above transaction processing apparatus based on blockchain is further configured to invoke the blockchain to execute, after uploading the payment transaction information into the blockchain: and receiving payment transaction information to be verified. Calculating a third hash value H based on a plurality of elements in the payment transaction information to be verified₁'. Comparing the third hash value H₁' with the first hash value H₁. If the third hash value H₁' with the first hash value H₁And if the payment transaction information is consistent with the payment transaction information to be verified, determining that the payment transaction information to be verified is real information.

According to an embodiment of the present disclosure, the above transaction processing apparatus based on a blockchain is further configured to invoke the blockchain to execute, after the document information of the exporter is uploaded into the blockchain: and receiving the bill information to be verified. Calculating a fourth hash value H based on a plurality of elements in the document information to be verified₂'. Comparing the fourth hash value H₂' with the second hash value H₂. If the fourth hash value H₂' with the second hash value H₂And if the bill information to be verified is consistent with the real bill information, determining that the bill information to be verified is real information.

According to the embodiment of the disclosure, the payment transaction information comprises subscription transaction information and remaining money transaction information, and the bill information comprises bill copy information and bill original information. Generating the subscription transaction information based on a prepaid subscription of the importer, wherein the subscription transaction information comprises subscription payment credentials. And uploading the subscription transaction information to the blockchain. And responding to a subscription inquiry request of the exporter, and sending the subscription transaction information stored in the block chain to the exporter. And uploading the bill copy information of the exporter to the block chain, wherein the bill copy information is the goods information and the logistics information generated when the exporter fulfills the transaction contract according to the deposit transaction information. And responding to the document copy inquiry request of the importer, and sending the document copy information stored in the block chain to the importer. Generating the remaining money transaction information in response to the remaining money paid by the importer. And uploading the residual money transaction information to the blockchain. And responding to a residual money inquiry request of the exporter, and sending the residual money transaction information stored in the blockchain to the exporter. And uploading the document original information of the exporter to the block chain, wherein the document original information is generated by the exporter according to the residual money transaction information.

Another aspect of the present disclosure provides a computing device comprising: one or more processors; memory for storing one or more programs, wherein the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the method as described above.

Another aspect of the disclosure provides a non-transitory readable storage medium storing computer-executable instructions for implementing the method as described above when executed.

Another aspect of the disclosure provides a computer program comprising computer executable instructions for implementing the method as described above when executed.

Drawings

For a more complete understanding of the present disclosure and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which:

fig. 1 schematically illustrates a blockchain based transaction processing method and a system architecture of a blockchain based transaction processing apparatus according to an embodiment of the present disclosure;

FIG. 2 schematically illustrates a block diagram of a document trading platform according to an embodiment of the present disclosure;

FIG. 3 schematically shows a block diagram of a blockchain platform according to an embodiment of the present disclosure;

FIG. 4 schematically shows a block diagram of a node according to an embodiment of the disclosure;

fig. 5 schematically shows a flow chart of a blockchain based transaction processing method according to a first embodiment of the present disclosure;

fig. 6 schematically shows a flow chart of a blockchain based transaction processing method according to a second embodiment of the present disclosure;

FIG. 7 schematically illustrates a flow diagram for uploading payment transaction information to a blockchain in accordance with an embodiment of the present disclosure;

FIG. 8 schematically illustrates a flow diagram for uploading data information to a blockchain in accordance with an embodiment of the present disclosure;

fig. 9 schematically shows a flow chart of a blockchain based transaction processing method according to a third embodiment of the present disclosure;

figure 10 schematically shows a block diagram of a blockchain based transaction processing apparatus according to an embodiment of the present disclosure;

FIG. 11 schematically illustrates a block diagram of a first upload module, in accordance with an embodiment of the present disclosure;

FIG. 12 schematically illustrates a block diagram of a second upload module, in accordance with an embodiment of the present disclosure; and

FIG. 13 schematically illustrates a block diagram of a computer system for implementing blockchain-based transaction processing, in accordance with an embodiment of the present disclosure.

Detailed Description

Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. It should be understood that the description is illustrative only and is not intended to limit the scope of the present disclosure. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The terms "comprises," "comprising," and the like, as used herein, specify the presence of stated features, steps, operations, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, or components.

All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. It is noted that the terms used herein should be interpreted as having a meaning that is consistent with the context of this specification and should not be interpreted in an idealized or overly formal sense.

Where a convention analogous to "at least one of A, B and C, etc." is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., "a system having at least one of A, B and C" would include but not be limited to systems that have a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together, etc.). Where a convention analogous to "A, B or at least one of C, etc." is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., "a system having at least one of A, B or C" would include but not be limited to systems that have a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together, etc.).

Some block diagrams and/or flow diagrams are shown in the figures. It will be understood that some blocks of the block diagrams and/or flowchart illustrations, or combinations thereof, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable control apparatus to produce a machine, such that the instructions, which execute via the processor, create means for implementing the functions/acts specified in the block diagrams and/or flowchart block or blocks.

Accordingly, the techniques of this disclosure may be implemented in hardware and/or software (including firmware, microcode, etc.). In addition, the techniques of this disclosure may take the form of a computer program product on a computer-readable medium having instructions stored thereon for use by or in connection with an instruction execution system. In the context of this disclosure, a computer-readable medium may be any medium that can contain, store, communicate, propagate, or transport the instructions. For example, the computer readable medium can include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, device, or propagation medium. Specific examples of the computer readable medium include: magnetic storage devices, such as magnetic tape or Hard Disk Drives (HDDs); optical storage devices, such as compact disks (CD-ROMs); a memory, such as a Random Access Memory (RAM) or a flash memory; and/or wired/wireless communication links.

The embodiment of the disclosure provides a transaction processing method based on a block chain, which is used for a document transaction platform and comprises the following steps: generating payment transaction information in response to the importer payment terms, wherein the payment transaction information includes funds paid by the importer based on a transaction contract made by the importer and the exporter, and the payment transaction information includes payment credentials. The payment transaction information is then uploaded into the blockchain. And responding to the payment transaction inquiry request of the exporter, sending the payment transaction information stored in the blockchain to the exporter so that the exporter can confirm the authenticity of the money according to the payment transaction information in the blockchain. And then, uploading the bill information of the exporter to the block chain, wherein the bill information comprises goods information and logistics information generated when the exporter fulfills the transaction contract according to the payment transaction information. And finally, the document information stored in the block chain can be sent to the importer in response to a document information query request of the importer, so that the importer can confirm the authenticity of the goods information and the logistics information according to the document information in the block chain. According to the method and the device, the payment voucher and the receipt information generated in the transaction process are uploaded to the block chain, and the risk that the payment voucher and the receipt information are forged is prevented to a certain extent due to the fact that the block chain cannot be tampered.

Fig. 1 schematically shows a blockchain based transaction processing method and a system architecture of a blockchain based transaction processing apparatus according to an embodiment of the present disclosure. It should be noted that fig. 1 is only an example of a system architecture to which the embodiments of the present disclosure may be applied to help those skilled in the art understand the technical content of the present disclosure, and does not mean that the embodiments of the present disclosure may not be applied to other devices, systems, environments or scenarios.

As shown in fig. 1, a system architecture 100 according to this embodiment may include, for example, a document trading platform 110, a blockchain platform 120, a plurality of partner application devices 131, 132, 133, 134, a plurality of networks 141, 142, and so forth.

The document transaction platform 110 is, for example, used to process transaction information between a plurality of partner application devices 131, 132, 133, 134 in accordance with embodiments of the present disclosure. The document transaction platform 110 is connected to the blockchain platform 120, for example. The document transaction platform 110 may, for example, send transaction information from the plurality of partner application devices 131, 132, 133, 134 to the blockchain platform 120 or send information from the blockchain platform 120 to the plurality of partner application devices 131, 132, 133, 134.

According to the embodiment of the present disclosure, the blockchain platform 120 includes, for example, a plurality of nodes, and the plurality of nodes are configured to verify the transaction information from the plurality of partner application devices 131, 132, 133, 134 and store the verified transaction information into the blockchain platform 120, so as to ensure non-tamper-ability of the transaction information. The plurality of nodes of the embodiment of the present disclosure includes, for example, at least six nodes.

According to embodiments of the present disclosure, the plurality of cooperating entities may be, for example, a plurality of entities involved in a transaction. For example, when the importer and the exporter enter into a transaction contract, payment information and other related information are involved in the process of fulfilling the transaction contract, in which case, the plurality of collaborators may include, for example, the importer, the exporter, the issuing bank, the notification bank, the delivery bank, and the like. The specific functions of the plurality of collaborators will be described later.

The plurality of partner application devices 131, 132, 133, 134 are devices such as terminals, servers, or processors, etc. for exchanging information with the document transaction platform 110 or the blockchain platform 120 by a plurality of partners according to the embodiment of the present disclosure. The multiple partner application devices 131, 132, 133, and 134 may send corresponding transaction information to the document transaction platform 110, and the document transaction platform 110 may invoke the blockchain platform 120 to perform information verification and information storage.

The plurality of networks 141, 142 may be, for example, wired networks or wireless networks according to embodiments of the present disclosure. For example, the plurality of networks 141, 142 may be operator-provided wireless communication networks or INTERNET communication networks.

The following results are provided in fig. 2-4 to describe the specific structure of the document transaction platform 110 and the blockchain platform 120, respectively.

FIG. 2 schematically shows a block diagram of a document trading platform according to an embodiment of the present disclosure.

As shown in FIG. 2, the document transaction platform 110 includes, for example, a document input module 111, a document output module 112, a transaction processing module 113, a transaction verification module 114, and a transaction control module 115. The specific functions of the respective modules will be described below.

The document input module 111 is responsible for displaying document transaction input and query interfaces, and receiving a user instruction, so that the user instruction is transmitted to the transaction processing module 113 for processing, and content such as a processing result and a query result is obtained.

The document output module 112 is responsible for transmitting the processing result and the query result to the blockchain platform 120. The transaction verification module 114 may be invoked during the transmission to verify the processing results and query results from the transaction processing module 113.

The transaction processing module 113 is responsible for generating, sending and receiving various messages and letters in document transaction, and recording transaction information in real time.

The transaction verification module 114 is responsible for processing transaction information uploaded by a user, customs declaration forms, transportation documents, contracts and other information uploaded by peripheral systems such as customs and the like to obtain an information processing result, and comparing the processing result with records in the block chain so as to verify the authenticity of the information.

The transaction control module 115 is responsible for controlling the overall processing flow of the transaction according to the international document service specification and flow, and checking whether the transaction meets the supervision requirement.

Fig. 3 schematically shows a block diagram of a blockchain platform according to an embodiment of the present disclosure.

As shown in fig. 3, the blockchain platform 120 includes a plurality of nodes, such as a node 111a and a node 111b, a transaction input module 122, a transaction output module 123, and an external application module 124.

Each node (node 111a, node 111b, etc.) is responsible for receiving transaction information from the document transaction platform 110 or from other nodes and forwarding the transaction information. The received transaction information is then validated. If the transaction information received by a certain number of nodes in the plurality of nodes is consistent, the transaction information passes verification, and the plurality of nodes agree on the transaction information in the whole block chain. Then, each node executes the intelligent contract respectively and links the received transaction information.

The transaction input module 122 is responsible for presenting the entry interface, the query interface, the remittance order, the customs clearance order, and the like on the partner institution application. In addition, the transaction input module 122 may receive a user instruction and transmit the user instruction to a plurality of nodes for processing, so as to obtain a processing result and a query result.

The transaction output module 123 is responsible for displaying the processing result and the query result from the transaction input module 122 to each cooperative entity. Where the collaborating institutions may be, for example, banks and business clients, etc.

The external application module 124 is responsible for exchanging information with customs, the document transaction platform 110, and other applications.

Fig. 4 schematically shows a block diagram of a node according to an embodiment of the disclosure.

As shown in fig. 4, each node (node 111a or node 111b) of the plurality of nodes includes, for example, a transaction registration module 1111, a transaction consensus module 1112, a transaction query module 1113, and a transaction comparison module 1114.

The transaction registration module 1111 is configured to receive transaction registration information, such as contracts, customs declaration forms, transportation documents, messages, and facial letters, sent by each cooperative application device. The transaction consensus module 1112 is then invoked to complete the consensus of the accepted transaction registration information. Then, the intelligent contract can be further executed, and the transaction registration information is registered in each node through the same contract rule, so that the transaction information on all the nodes is ensured to be consistent. In addition, the transaction registration module 1111 may further calculate a hash value H as a feature value for the concatenation result of the plurality of key elements of the document, and store the hash value H in the block chain for subsequent comparison. The plurality of key elements may be, for example, a declaration number, a contract number, a customer number, an amount, a currency, and the like.

The transaction consensus module 1112 is responsible for consensus on transaction information from the transaction registration module 1111. For example, Byzantine fault tolerance algorithm may be employed to achieve consensus and to uplink the transaction information that achieved consensus.

The transaction query module 1113 is responsible for receiving a query request of a user, taking customer information, a customs declaration form or a transportation form number as a query condition, and acquiring and returning relevant information based on the query condition.

The transaction comparison module 1114 is responsible for receiving transaction information that needs to be verified. For example, to-be-verified transaction information is received, and a hash value H' is calculated for a splicing result of a plurality of key elements in the to-be-verified transaction information. The plurality of key elements may be, for example, a declaration number, a contract number, a customer number, an amount, a currency, and the like. The stored transaction information in the blockchain is then checked. Due to the non-tamper property of the block chain, if the transaction record characteristic value H ═ H' exists, the transaction record can be determined to exist and be really effective.

The following transaction processing method of the embodiment of the present disclosure shown in fig. 5 to 9 will be described in conjunction with the system architecture of fig. 1 and the block diagrams of fig. 2 to 4.

Fig. 5 schematically shows a flow chart of a blockchain based transaction processing method according to a first embodiment of the present disclosure.

As shown in fig. 5, the blockchain-based transaction processing method of the embodiment of the present disclosure may be used for a document transaction platform 110, for example. The transaction processing method includes, for example, the following operations S510 to S550. Wherein the plurality of collaborating entities comprises, for example, at least importers and exporters.

In operation S510, payment transaction information is generated in response to the importer payment item, wherein the payment transaction information includes money paid by the importer based on a transaction contract made by the importer and the exporter, and the payment transaction information includes payment credentials.

According to embodiments of the present disclosure, for example, after an importer and an exporter have contracted a transaction, payment items may be paid by the importer to the exporter. And the exporter receives the money and then sends the goods to the importer. Wherein the importer can pay the exporter a payment through the document transaction platform 110. The document transaction platform 110 may generate payment transaction information based on the payment flow, which may include, for example, payment credentials.

In operation S520, the payment transaction information is uploaded into the blockchain. For example, payment transaction information may be uploaded by the document transaction platform 110 into a blockchain for storage to ensure non-tamper-ability of the payment transaction information.

In operation S530, in response to the payment transaction inquiry request of the exporter, the payment transaction information stored in the blockchain is transmitted to the exporter, so that the exporter confirms the authenticity of money according to the payment transaction information in the blockchain.

According to the embodiment of the disclosure, after the exporter receives the money paid by the importer, the exporter can confirm the authenticity of the money by inquiring the payment transaction information in the block chain before the exporter sends the goods to the importer. For example, an exporter may query for payment via the document transaction platform 110. After receiving the query request from the exporter, the document transaction platform 110 may send the query request to the blockchain platform 120 for processing to obtain the stored payment transaction information. Payment transaction information from blockchain platform 120 is then sent by the document transaction platform 110 to the exporter.

In operation S540, document information of the exporter is uploaded into the blockchain, wherein the document information includes goods information and logistics information generated when the exporter fulfills the transaction contract according to the payment transaction information.

According to an embodiment of the present disclosure, after the exporter receives the money paid by the importer and verifies the authenticity of the money, the exporter may send the goods to the importer. The exporter can generate document information from the sent information related to the goods. The document information includes, for example, cargo information and logistics information. The goods information includes, for example, the number of goods, unit price, and the like. The physical distribution information may include, for example, information of a physical distribution company that carries goods, and the like.

The document information may then be uploaded by the document transaction platform 110 into the block chaining platform 120 for storage to ensure the non-tamper-ability of the document information.

In operation S550, in response to the document information query request of the importer, the document information stored in the block chain is transmitted to the importer, so that the importer confirms the authenticity of the goods information and the logistics information according to the document information in the block chain.

According to an embodiment of the present disclosure, the document transaction platform 110 may receive a query request for document information from an importer and obtain stored document information from the blockchain platform 120 based on the query request. The document information is then sent to the importer for the importer to determine its authenticity based on the document information from the blockchain.

Fig. 6 schematically shows a flow chart of a blockchain based transaction processing method according to a second embodiment of the present disclosure.

As shown in fig. 6, the blockchain-based transaction processing method of the embodiment of the present disclosure may be used for a document transaction platform 110, for example.

According to an embodiment of the present disclosure, the payment transaction information may include, for example, a subscription transaction information and a remaining money transaction information. Document information may include, for example, document copy information and document original information. In the course of the importer and exporter's fulfillment of the transaction contract, for example, a subscription is first prepaid by the importer, the exporter receives the subscription and delivers the goods, and document copy information is generated and sent to the importer indicating that the exporter has produced the goods and delivered the goods. And after receiving the document copy information, the importer pays the residual money. And after receiving the residual money, the exporter generates document positive information and sends the document positive information to the importer. The importer can use the document positive information to the logistics company to extract the goods. Specifically, the transaction processing method of the embodiment of the present disclosure may include, for example, the following operations S610 to S690.

In operation S610, subscription transaction information is generated based on a prepaid subscription of an importer, wherein the subscription transaction information includes subscription payment credentials. For example, the document transaction platform 110 may generate a subscription transaction message upon receiving a prepaid subscription from an importer. The prepaid subscription may then be transferred to the exporter's account.

In operation S620, the subscription transaction information is uploaded into the blockchain. For example, the voucher transaction platform 110 uploads the subscription transaction information to the blockchain platform 120 for storage, thereby ensuring the non-tamper property of the subscription transaction information.

In operation S630, the subscription transaction information stored in the blockchain is transmitted to the exporter in response to the subscription inquiry request of the exporter. For example, after receiving the deposit inquiry request from the exporter, the document transaction platform 110 may send the deposit inquiry request to the blockchain platform 120 for processing to obtain the stored deposit transaction information. The deposit transaction information from blockchain platform 120 is then sent by the document transaction platform 110 to the exporter for the exporter to confirm the authenticity of the deposit transaction information.

In operation S640, document copy information of the exporter is uploaded to the block chain, where the document copy information is goods information and logistics information generated when the exporter performs a transaction contract according to the deposit transaction information. For example, after the exporter receives the deposit and determines the authenticity of the deposit based on the deposit transaction information stored in the blockchain, the exporter may begin producing the goods and entrusting the produced goods to a logistics company for shipment and generate a copy of the document including the shipment information and the logistics information. Then, the exporter logs in the document transaction platform 110, and uploads the document copy information to the block chain platform 120 through the document transaction platform 110 for storage, so as to ensure that the document copy information is not tampered.

In operation S650, in response to the document copy query request of the importer, document copy information stored in the block chain is transmitted to the importer. For example, after receiving the query request of the importer for the document copy information, the document transaction platform 110 may send the query request of the document copy to the block chain platform 120 for processing, so as to obtain the stored document copy information. The document copy information from the blockchain platform 120 is then sent by the document transaction platform 110 to the importer for the importer to confirm the authenticity of the document copy information.

In operation S660, the remaining money transaction information is generated in response to the remaining money paid by the importer. For example, after the importer inquires the document copy information as real information, the importer can pay the remaining money to the exporter and generate the remaining money transaction information, which includes, for example, payment voucher.

In operation S670, the remaining money transaction information is uploaded into the blockchain. For example, the document transaction platform 110 uploads the remaining money transaction information to the block link platform 120 for storage, so as to ensure that the remaining money transaction information is not tamper-proof.

In operation S680, the remaining money transaction information stored in the block chain is transmitted to the exporter in response to the remaining money inquiry request of the exporter. For example, after the exporter receives the remaining money of the importer, the exporter can inquire whether the remaining money is real from the blockchain. For example, after the document transaction platform 110 receives the query request of the exporter for the remaining money, the remaining money transaction information stored in the blockchain may be sent to the exporter. After determining the authenticity of the remaining money transaction information, the exporter can generate document original information according to the remaining money transaction information.

In operation S690, the document original information of the exporter is uploaded into the blockchain. That is, the exporter can log in the document transaction platform 110 and upload the document original information to the block chain platform 120 through the document transaction platform 110 for storage, thereby ensuring the non-tamper property of the document original information. And then, the importer can inquire the authenticity of the document original information in the block chain and extract the goods from the logistics company by means of the document original information.

According to the method and the device, the payment voucher and the receipt information generated in the transaction process are uploaded to the block chain, and the risk that the payment voucher and the receipt information are forged is prevented to a certain extent due to the fact that the block chain cannot be tampered. And secondly, the importer and the exporter can inquire payment voucher and document information stored in the block chain in real time, so that transaction management is facilitated. Because the transaction full-flow information has real and non-falsifiable records on the blockchain platform, convenience is provided for subsequent services such as fund settlement and financing.

Fig. 7 schematically illustrates a flow diagram for uploading payment transaction information to a blockchain in accordance with an embodiment of the present disclosure.

As shown in fig. 7, the above operation S520 includes, for example, operations S521 to S523.

In operation S521, transaction signature information in the payment transaction information is verified. For example, when the importer pays the exporter, the generated payment transaction information has, for example, the transaction signature information of the importer. The authenticity of the transaction signature may be verified by the transaction verification module 114 in the document transaction platform 110.

In operation S522, in response to the transaction signature information being authentic information, the blockchain is invoked to perform consensus on the payment transaction information. For example, if the document transaction platform 110 verifies the transaction signature information as authentic information, the document transaction platform 110 may invoke a plurality of nodes in the blockchain to perform consensus verification on the payment transaction information.

For example, it may be determined through the blockchain whether the payment transaction information received by the plurality of nodes are consistent with each other. Determining that the blockchain agrees on the payment transaction information if more than half of the payment transaction information received by the plurality of nodes are consistent with each other.

In operation S523, in response to the blockchain agreeing on the payment transaction information, the payment transaction information is stored to the blockchain through the blockchain.

For example, the document transaction platform 110 may invoke an intelligent contract in the blockchain to perform deduplication processing on the payment transaction information, so as to obtain processed payment transaction information. For example, the payment transaction information before the deduplication processing includes multiple transactions in which duplicate transactions may exist, and the payment transaction information obtained after the deduplication processing by the smart contract, for example, does not include duplicate transactions. And then, storing the processed payment transaction information to the block chain through the block chain so as to realize the non-tamper property of the payment transaction information.

Fig. 8 schematically illustrates a flow diagram for uploading data information to a blockchain according to an embodiment of the present disclosure.

As shown in fig. 8, the operation S540 includes, for example, operations S541 to S543.

In operation S541, document signature information in the document information is verified. For example, the document information generated by the exporter includes, for example, document signature information of the exporter. The authenticity of the document signature may be verified by a transaction verification module 114 in the document transaction platform 110.

In operation S542, in response to the document signature information being the real information, a block chain is called to perform consensus on the document information. For example, if the document transaction platform 110 verifies that the document signature information is authentic, the document transaction platform 110 may invoke a plurality of nodes in the block chain to perform consensus verification on the document information.

For example, whether the document information received by the plurality of nodes is consistent with each other may be determined through the block chain. And if the bill information received by more than half of the nodes in the plurality of nodes is consistent with each other, determining that the block chain agrees with the bill information.

In operation S543, in response to the block chain agreeing on the receipt information, the receipt information is stored to the block chain through the block chain.

For example, the document transaction platform 110 may call an intelligent contract in the block chain to perform deduplication processing on the document information, so as to obtain processed document information. For example, the document information before the deduplication processing includes a plurality of document information, there may be duplicate documents in the plurality of document information, and the document information obtained after the deduplication processing by the intelligent contract does not include duplicate documents, for example. And then, storing the processed document information to the block chain through the block chain, so as to realize the non-tamper property of the document information.

According to an embodiment of the present disclosure, payment transaction information is uploadedTo the block chain, including: invoking the blockchain to calculate a first hash value H based on a plurality of elements in the payment transaction information₁And the first hash value H₁And storing the block into a block chain. The plurality of key elements in the payment transaction information may be, for example, an element such as a declaration number, a contract number, a customer number, an amount, and a currency.

According to an embodiment of the present disclosure, after the document transaction platform 110 uploads the payment transaction information into the blockchain, the document transaction platform 110 may invoke the blockchain to perform: payment transaction information to be verified is received, which may be, for example, a verification request sent by an importer, exporter or other partner entity. Calculating a third hash value H based on a plurality of elements in the payment transaction information to be verified₁'. The plurality of elements in the payment transaction information to be verified may be, for example, an element such as a declaration number, a contract number, a customer number, an amount, a currency, and the like. Then, the third hash value H is compared₁' with the first hash value H₁If the third hash value H₁' with the first hash value H₁And if the payment transaction information is consistent with the verification information, determining that the payment transaction information to be verified is real information.

According to the embodiment of the disclosure, uploading the document information of the exporter to the block chain comprises: calling the blockchain to calculate a second hash value H based on a plurality of elements in the document information₂And the second hash value H₂And storing the block into a block chain. The plurality of key elements in the document information may be, for example, an element such as a declaration number, a contract number, a customer number, an amount, a currency, and physical distribution information.

According to the embodiment of the present disclosure, after the document transaction platform 110 uploads the document information of the exporter to the blockchain, the document transaction platform 110 may call the blockchain to perform: document information to be authenticated is received, which may be, for example, an authentication request sent by an importer, exporter or other collaborating entity. Calculating a fourth hash value H based on a plurality of elements in the document information to be verified₂'. The plurality of elements in the document information to be authenticated may be, for example, an element such as a declaration number, a contract number, a customer number, an amount, a currency, and logistics information. Then, the user can use the device to perform the operation,comparing the fourth hash value H₂' with a second hash value H₂If the fourth hash value H₂' with a second hash value H₂And if the information is consistent with the document information to be verified, determining that the document information to be verified is real information.

Fig. 9 schematically shows a flowchart of a blockchain-based transaction processing method according to a third embodiment of the present disclosure.

As shown in fig. 9, the transaction processing method involves, for example, the document transaction platform 110, the blockchain platform 120, and the plurality of collaborating entities shown in fig. 1. The plurality of collaborators include, for example, importers, exporters, issuing agencies, notification agencies, and delivery agencies, among others. Operations S901 to S919 included in the transaction method according to the embodiment of the present disclosure are described below with reference to the system architecture of fig. 1 and the block diagrams of fig. 2 to 4.

In operation S901, the importer and the exporter sign a transaction contract.

In operation S902, the importer applies for the opening of an import letter of credit to the issuing bank. The importer uploads the relevant materials such as the transaction contract and the business license to the block chain for storage through the document transaction platform 110, so that the non-tamper property of the transaction contract and the business license is ensured.

In operation S903, the issuing bank logs on the document transaction platform 110 and invokes the transaction processing module 113 to generate an import letter of credit. The external application module 124 of the blockchain platform 120 is called to upload transaction information such as an approval message, an approval letter, an import letter and the like to the blockchain platform 120. After receiving the transaction information sent by the document transaction platform 110, the blockchain platform 120 performs consensus verification on the transaction information by calling nodes in the blockchain, and registers the transaction information to the blockchain through the transaction registration module 1111 of each node in the blockchain.

In operation S904, the notification bank logs in the document transaction platform 110 and invokes the transaction processing module 113 to generate an export letter of credit. Transaction information such as receipt messages, notification facial letters, and export letter of credit notifications are uploaded to blockchain platform 120 by invoking external application module 124 of blockchain platform 120. After receiving the transaction information sent by the document transaction platform 110, the blockchain platform 120 performs consensus verification on the transaction information by calling nodes in the blockchain, and registers the transaction information to the blockchain through the transaction registration module 1111 of each node in the blockchain.

In operation S905, the exporter logs in the blockchain platform 120, calls the transaction input module 122 to input related options, and calls the transaction output module 123 to view the transaction information such as the related message and the facial letter for generating the import letter of credit or the export letter of credit.

In operation S906, the importer prepays a proportion of the subscription and uploads the subscription payment instrument to the blockchain platform 120. The corresponding transaction information is then generated by invoking the transaction input module 122 of the blockchain platform 120. The blockchain platform 120 performs consensus verification on the transaction information by calling nodes in the blockchain, and registers the transaction information into the blockchain through the transaction registration module 1111 of each node in the blockchain. Thereafter, the blockchain platform 120 calls the document input module 111 of the document transaction platform 110 to send the transaction information to the document transaction platform 110. The document transaction platform 110 controls the transaction information to be visible only to the issuing bank, notification bank, and exporter, for example, through the transaction control module 115.

In operation S907, the issuing bank logs in the document transaction platform 110, and calls the external application module 124 of the block chain platform 120 through the document transaction platform 110 to check information such as the payment certificate of the deposit, and after the confirmation of no error, the transaction processing module 113 of the document transaction platform 110 transfers the deposit to the notification bank. Then, the transaction information generated in the transfer process is uploaded to the blockchain platform 120 through the document transaction platform 110, after the blockchain platform 120 receives the transaction information, the common identification verification is performed on the transaction information through calling nodes in the blockchain, and the transaction information is registered to the blockchain through the transaction registration module 1111 of each node in the blockchain.

In operation S908, the notification bank logs in the document transaction platform 110, calls the transaction processing module 113 to collect the fixed amount, and transfers the fixed amount to the account of the exporter.

In operation S909, the exporter logs in the blockchain platform 120, calls the transaction input module 122 to inquire about the deposit money information. In addition, exporters can upload valid credentials and document copies of system contracts, invoices, customs statements, shipping documents, etc. to blockchain platform 120. The carrier may also log onto blockchain platform 120 and upload shipping documents, customs clearance, etc. Secondly, the blockchain platform 120 may call the customs system through the external application module 124 to obtain the transaction information such as the related transportation documents and customs declaration, call the nodes in the blockchain to perform consensus verification on the transaction information, and register the transaction information to the blockchain through the transaction registration module 1111 of each node in the blockchain. Part of the uploaded transaction information of the blockchain platform is visible to importers and delivery lines.

In operation S910, the delivery bank logs in the document transaction platform 110, and the document transaction platform 110 calls the external application module 124 of the blockchain platform 120 to check document copies such as customs clearance and transportation information, and if there is a problem with the document copies, notifies the exporter to modify the documents. If the document copy has no problem, the transaction processing module 113 of the document transaction platform 110 can be called to generate an export mailing transaction, and the issuing row is informed to pay.

In operation S911, the issuing bank logs in the document transaction platform 110, and the document transaction platform 110 calls the external application module 124 of the blockchain platform 120 to check document copies such as a check declaration form and transportation information, and if there is a problem with the document copies, notifies the exporter to modify the document copies. If the document copy has no problem, the import-to-document transaction can be generated according to the export posting transaction content generated by the issuing bank, and the importer is informed.

In operation S912, the importer logs in the blockchain platform 120, calls the transaction input module 122 of the blockchain platform 120 to enter related options, and then calls the transaction output module 123 of the blockchain platform 120 to query the document copy information such as the shipping record, the transportation document, and the customs declaration. The remaining funds are then transferred to the exporter and payment credentials for the remaining funds are uploaded to blockchain platform 120. Then, by calling the transaction input module 122 of the blockchain platform 120 to generate corresponding transaction information, the nodes in the blockchain perform consensus verification on the transaction information. Then, the transaction registration module 1111 of each node of the blockchain may register the verified transaction information to the blockchain. The blockchain platform 120 calls the document input module 111 of the document transaction platform 110 to transmit the transaction information in the blockchain to the document transaction platform 110. The document transaction platform 110 controls the portion of the transaction information to be visible only to the issuing bank, the notification bank, and the exporter via the transaction control module 115.

In operation S913, the issuing bank logs in the document transaction platform 110, the document transaction platform 110 invokes the external application module 124 of the block chain platform 120 to check information such as payment certificates of the remaining money, and after the check is confirmed, the remaining money is transferred to the notification bank, and the message information generated in the transfer process is uploaded to the block chain platform 120.

In operation S914, the notification bank logs in the document transaction platform 110, and after the transaction processing module 113 of the document transaction platform 110 is invoked to collect the remaining money, the remaining money is transferred to the account of the exporter, and the exporter is notified to send the document material such as the transportation document and the customs declaration.

In operation S915, the exporter receives the remaining money and inquires the remaining money through the blockchain that the remaining money is correct, and then generates a document original, and sends the document original to the importer. Meanwhile, the document original is uploaded to the block chain platform 120, and the transaction input module 122 of the block chain platform 120 is called to generate corresponding transaction information based on the document original. After the blockchain platform 120 receives the transaction information, the nodes in the blockchain perform consensus verification on the transaction information. Then, the transaction registration module 1111 of each node of the blockchain may register the verified transaction information to the blockchain. The blockchain platform 120 calls the document input module 111 of the document transaction platform 110 to transmit the transaction information in the blockchain to the document transaction platform 110. The document transaction platform 110 controls the portion of the transaction information to be visible only to the issuing bank, the notification bank, and the exporter via the transaction control module 115.

In operation S916, the delivery bank logs in the document transaction platform 110, and the document transaction platform 110 calls the external application module 124 of the block chain platform 120 to check the document original information, and notifies the issuing bank to send the relevant material after confirming that the document is correct.

In operation S917, the issuing bank logs in the document transaction platform 110, and the document transaction platform 110 calls the external application module 124 of the block chain platform 120 to check the document original information and other related materials, and notifies the importer after confirming that no error exists.

In operation S918, the importer logs in the blockchain platform 120, invokes the transaction input module 122 in the blockchain platform 120 to enter a query option to query the document original information, and displays a query result of the document original through the transaction output module 123.

In operation S919, after the importer receives the document material such as the transportation document, the customs declaration and the like, the importer can pick up the goods from the document material to the logistics company, and the transaction is completed.

The remittance voucher and the receipt information originally transmitted through the mail or the fax are stored on the chain through the block chain technology, so that the information sharing is realized, and the information circulation is accelerated. The working efficiency of each mechanism in the transaction process is improved, the cost such as expense, time and the like in the transaction process is reduced, and the safety, transparency and non-falsification of remittance vouchers and receipt information are ensured.

Fig. 10 schematically shows a block diagram of a blockchain based transaction processing device according to an embodiment of the present disclosure.

As shown in fig. 10, the blockchain-based transaction processing apparatus 1000 may include a generation module 1010, a first upload module 1020, a first transmission module 1030, a second upload module 1040, and a second transmission module 1050. The functions of the respective modules will be described below.

The generating module 1010 may be configured to generate payment transaction information in response to the importer payment terms, wherein the payment transaction information includes funds paid by the importer based on a transaction contract made by the importer and the exporter, and the payment transaction information includes payment credentials. According to the embodiment of the present disclosure, the generating module 1010 may perform, for example, the operation S510 described above with reference to fig. 5, which is not described herein again.

The first upload module 1020 may be used to upload payment transaction information into the blockchain. According to an embodiment of the present disclosure, the first upload module 1020, for example, may perform operation S520 described above with reference to fig. 5, which is not described herein again.

The first sending module 1030 may be configured to send the payment transaction information stored in the blockchain to the exporter in response to a payment transaction inquiry request of the exporter, so that the exporter can confirm the authenticity of money according to the payment transaction information in the blockchain. According to the embodiment of the present disclosure, the first sending module 1030 may perform, for example, operation S530 described above with reference to fig. 5, which is not described herein again.

The second upload module 1040 may be configured to upload the document information of the exporter into the blockchain, wherein the document information includes the goods information and the logistics information generated when the exporter fulfills the transaction contract according to the payment transaction information. According to an embodiment of the present disclosure, the second uploading module 1040 may, for example, perform operation S540 described above with reference to fig. 5, which is not described herein again.

The second sending module 1050 may be configured to send the document information stored in the block chain to the importer in response to a document information query request of the importer, so that the importer can confirm the authenticity of the goods information and the logistics information according to the document information in the block chain. According to the embodiment of the present disclosure, the second sending module 1050 may, for example, perform operation S550 described above with reference to fig. 5, which is not described herein again.

Fig. 11 schematically illustrates a block diagram of a first upload module according to an embodiment of the present disclosure.

As shown in fig. 11, the first uploading module 1020 includes, for example, a first verification module 1021, a first calling module 1022, and a first storage module 1023. The functions of the respective modules will be described below.

The first verification module 1021 may be used to verify transaction signature information in the payment transaction information. According to the embodiment of the present disclosure, the first verification module 1021 may perform, for example, operation S521 described above with reference to fig. 7, which is not described herein again.

The first invoking module 1022 may be configured to invoke the blockchain to perform consensus on the payment transaction information in response to the transaction signature information being authentic information. According to an embodiment of the disclosure, the first call module 10221 may perform the operation S522 described above with reference to fig. 7, for example, and is not described herein again.

The first storage module 1023 may be used to store the payment transaction information to the blockchain through the blockchain in response to the blockchain agreeing on the payment transaction information. According to an embodiment of the present disclosure, the first storage module 1023 may perform the operation S523 described above with reference to fig. 7, for example, and is not described herein again.

According to an embodiment of the present disclosure, storing payment transaction information to a blockchain by the blockchain includes: and calling an intelligent contract in the block chain to perform duplicate removal processing on the payment transaction information to obtain the processed payment transaction information. And storing the processed payment transaction information to the blockchain through the blockchain.

According to an embodiment of the present disclosure, a blockchain includes a plurality of nodes. Calling the blockchain to perform consensus on the payment transaction information comprises: determining whether the payment transaction information received by the plurality of nodes is consistent with each other through the blockchain. Determining that the blockchain agrees on the payment transaction information if more than half of the payment transaction information received by the plurality of nodes are consistent with each other.

Fig. 12 schematically illustrates a block diagram of a second upload module, in accordance with an embodiment of the present disclosure.

As shown in fig. 12, the second uploading module 1040 includes, for example, a second verification module 1041, a second calling module 1042, and a second storing module 1043. The functions of the respective modules will be described below.

The second authentication module 1041 may be configured to authenticate document signature information in the document information. According to an embodiment of the present disclosure, the second verification module 1041 may perform, for example, operation S541 described above with reference to fig. 8, which is not described herein again.

The second invoking module 1042 may be configured to invoke the block chain to perform consensus on the document information in response to the document signature information being real information. According to the embodiment of the present disclosure, the second invoking module 1042 may, for example, perform the operation S542 described above with reference to fig. 8, which is not described herein again.

The second storage module 1043 may be configured to store the document information to the blockchain through the blockchain in response to the blockchain agreeing on the document information. According to the embodiment of the present disclosure, the second storage module 1043 may perform, for example, the operation S543 described above with reference to fig. 8, which is not described herein again.

According to an embodiment of the present disclosure, storing document information to a blockchain by the blockchain includes: and calling an intelligent contract in the block chain to perform duplicate removal processing on the document information to obtain the processed document information. And storing the processed document information to the block chain through the block chain.

According to the embodiment of the disclosure, calling the block chain to perform consensus on the document information comprises: and determining whether the bill information received by the plurality of nodes is consistent with each other through the block chain. And if the bill information received by more than half of the nodes in the plurality of nodes is consistent with each other, determining that the block chain agrees with the bill information.

According to an embodiment of the present disclosure, uploading payment transaction information into the blockchain includes: invoking the blockchain to calculate a first hash value H based on a plurality of elements in the payment transaction information₁And the first hash value H₁And storing the block into a block chain. Uploading the document information of the exporter into the blockchain comprises: calling the blockchain to calculate a second hash value H based on a plurality of elements in the document information₂And the second hash value H₂And storing the block into a block chain.

According to an embodiment of the present disclosure, the blockchain based transaction processing device is further configured to invoke blockchain execution after uploading the payment transaction information into the blockchain: and receiving payment transaction information to be verified. Calculating a third hash value H based on a plurality of elements in the payment transaction information to be verified₁'. Comparing the third hash value H₁' with the first hash value H₁. If the third hash value H₁' with the first hash value H₁And if the payment transaction information is consistent with the verification information, determining that the payment transaction information to be verified is real information.

According to the embodiment of the disclosure, the transaction processing device based on the blockchain is further configured to invoke the blockchain to execute, after the document information of the exporter is uploaded into the blockchain: and receiving the bill information to be verified. Calculating a fourth hash value H based on a plurality of elements in the document information to be verified₂'. Comparing the fourth hash value H₂' with a second hash value H₂. If the fourth hash value H₂' with a second hash value H₂And if the information is consistent with the document information to be verified, determining that the document information to be verified is real information.

According to the embodiment of the disclosure, the payment transaction information comprises subscription transaction information and remaining money transaction information, and the bill information comprises bill copy information and bill original information. Generating a subscription transaction information based on the pre-paid subscription of the importer, wherein the subscription transaction information comprises subscription payment credentials. And uploading the deposit transaction information to the blockchain. And sending the deposit transaction information stored in the block chain to the exporter in response to a deposit inquiry request of the exporter. And uploading the document copy information of the exporter to the block chain, wherein the document copy information is the goods information and the logistics information generated when the exporter fulfills the transaction contract according to the deposit transaction information. And responding to the document copy inquiry request of the importer, and sending the document copy information stored in the block chain to the importer. The remaining money transaction information is generated in response to the remaining money paid by the importer. And uploading the residual money transaction information to the blockchain. And responding to the remaining money inquiry request of the exporter, and sending the remaining money transaction information stored in the block chain to the exporter. And uploading the document original information of the exporter to the block chain, wherein the document original information is generated by the exporter according to the residual money transaction information.

Any number of modules, sub-modules, units, sub-units, or at least part of the functionality of any number thereof according to embodiments of the present disclosure may be implemented in one module. Any one or more of the modules, sub-modules, units, and sub-units according to the embodiments of the present disclosure may be implemented by being split into a plurality of modules. Any one or more of the modules, sub-modules, units, sub-units according to embodiments of the present disclosure may be implemented at least in part as a hardware circuit, such as a Field Programmable Gate Array (FPGA), a Programmable Logic Array (PLA), a system on a chip, a system on a substrate, a system on a package, an Application Specific Integrated Circuit (ASIC), or may be implemented in any other reasonable manner of hardware or firmware by integrating or packaging a circuit, or in any one of or a suitable combination of software, hardware, and firmware implementations. Alternatively, one or more of the modules, sub-modules, units, sub-units according to embodiments of the disclosure may be at least partially implemented as a computer program module, which when executed may perform the corresponding functions.

For example, any plurality of the generating module 1010, the first uploading module 1020, the first verifying module 1021, the first calling module 1022, the first storing module 1023, the first sending module 1030, the second uploading module 1040, the second verifying module 1041, the second calling module 1042, the second storing module 1043, and the second sending module 1050 may be combined and implemented in one module, or any one of them may be split into a plurality of modules. Alternatively, at least part of the functionality of one or more of these modules may be combined with at least part of the functionality of the other modules and implemented in one module. According to an embodiment of the present disclosure, at least one of the generating module 1010, the first uploading module 1020, the first verifying module 1021, the first calling module 1022, the first storing module 1023, the first sending module 1030, the second uploading module 1040, the second verifying module 1041, the second calling module 1042, the second storing module 1043, and the second sending module 1050 may be implemented at least partially as a hardware circuit, such as a Field Programmable Gate Array (FPGA), a Programmable Logic Array (PLA), a system on a chip, a system on a substrate, a system on a package, an Application Specific Integrated Circuit (ASIC), or any other reasonable manner of integrating or packaging a circuit, or as any one of or a suitable combination of software, hardware, and firmware implementations. Alternatively, at least one of the generating module 1010, the first uploading module 1020, the first verifying module 1021, the first calling module 1022, the first storing module 1023, the first sending module 1030, the second uploading module 1040, the second verifying module 1041, the second calling module 1042, the second storing module 1043 and the second sending module 1050 may be at least partially implemented as a computer program module, which when executed may perform corresponding functions.

FIG. 13 schematically illustrates a block diagram of a computer system for implementing blockchain-based transaction processing, in accordance with an embodiment of the present disclosure. The computer system illustrated in FIG. 13 is only one example and should not impose any limitations on the scope of use or functionality of embodiments of the disclosure.

As shown in fig. 13, computer system 1300 includes a processor 1301, a computer-readable storage medium 1302. The system 1300 may perform a method according to an embodiment of the present disclosure.

In particular, processor 1301 may include, for example, a general purpose microprocessor, an instruction set processor and/or related chip set and/or a special purpose microprocessor (e.g., an Application Specific Integrated Circuit (ASIC)), and/or the like. The processor 1301 may also include onboard memory for caching purposes. Processor 1301 may be a single processing unit or multiple processing units for performing different actions of a method flow according to embodiments of the present disclosure.

Computer-readable storage medium 1302 may be, for example, any medium that can contain, store, communicate, propagate, or transport the instructions. For example, a readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, device, or propagation medium. Specific examples of the readable storage medium include: magnetic storage devices, such as magnetic tape or Hard Disk Drives (HDDs); optical storage devices, such as compact disks (CD-ROMs); a memory, such as a Random Access Memory (RAM) or a flash memory; and/or wired/wireless communication links.

The computer-readable storage medium 1302 may include a computer program 1303, which computer program 1303 may include code/computer-executable instructions that, when executed by the processor 1301, cause the processor 1301 to perform a method according to an embodiment of the present disclosure, or any variant thereof.

The computer program 1303 may be configured with, for example, computer program code comprising computer program modules. For example, in an example embodiment, code in computer program 1303 may include one or more program modules, including 1303A, modules 1303B, … …, for example. It should be noted that the division and number of the modules are not fixed, and those skilled in the art may use suitable program modules or program module combinations according to actual situations, and when the program modules are executed by the processor 1301, the processor 1301 may execute the method according to the embodiment of the present disclosure or any variation thereof.

According to an embodiment of the present disclosure, at least one of the generating module 1010, the first uploading module 1020, the first verifying module 1021, the first calling module 1022, the first storing module 1023, the first sending module 1030, the second uploading module 1040, the second verifying module 1041, the second calling module 1042, the second storing module 1043, and the second sending module 1050 may be implemented as a computer program module described with reference to fig. 13, which when executed by the processor 1301, may implement the corresponding operations described above.

The present disclosure also provides a computer-readable medium, which may be embodied in the apparatus/device/system described in the above embodiments; or may exist separately and not be assembled into the device/apparatus/system. The computer readable medium carries one or more programs which, when executed, implement the method.

According to embodiments of the present disclosure, a computer readable medium may be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present disclosure, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In contrast, in the present disclosure, a computer-readable signal medium may include a propagated data signal with computer-readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, optical fiber cable, radio frequency signals, etc., or any suitable combination of the foregoing.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Those skilled in the art will appreciate that various combinations and/or combinations of features recited in the various embodiments and/or claims of the present disclosure can be made, even if such combinations or combinations are not expressly recited in the present disclosure. In particular, various combinations and/or combinations of the features recited in the various embodiments and/or claims of the present disclosure may be made without departing from the spirit or teaching of the present disclosure. All such combinations and/or associations are within the scope of the present disclosure.

While the disclosure has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Accordingly, the scope of the present disclosure should not be limited to the above-described embodiments, but should be defined not only by the appended claims, but also by equivalents thereof.

Claims (14)

1. A transaction processing method based on a blockchain is used for a document transaction platform, and the method comprises the following steps:

generating payment transaction information in response to an importer payment item, wherein the payment transaction information comprises money paid by the importer based on a transaction contract made by the importer and an exporter, the payment transaction information comprising payment credentials;

uploading the payment transaction information into a blockchain;

responding to a payment transaction inquiry request of the exporter, sending the payment transaction information stored in the block chain to the exporter so that the exporter can confirm the authenticity of money according to the payment transaction information in the block chain;

uploading receipt information of the exporter to the block chain, wherein the receipt information comprises goods information and logistics information generated when the exporter fulfills the transaction contract according to the payment transaction information; and

and responding to a document information query request of the importer, and sending the document information stored in the block chain to the importer so that the importer can confirm the authenticity of the goods information and the logistics information according to the document information in the block chain.

2. The method of claim 1, wherein the uploading the payment transaction information into a blockchain comprises:

verifying transaction signature information in the payment transaction information;

calling the block chain to carry out consensus on the payment transaction information in response to the transaction signature information being real information; and

in response to the blockchain agreeing on the payment transaction information, storing the payment transaction information to the blockchain through the blockchain.

3. The method of claim 2, wherein the storing the payment transaction information to the blockchain through the blockchain comprises:

calling an intelligent contract in the block chain to perform duplicate removal processing on the payment transaction information to obtain processed payment transaction information; and

storing the processed payment transaction information to the blockchain through the blockchain.

4. The method of claim 2, wherein the blockchain includes a plurality of nodes;

the invoking the blockchain to consensus the payment transaction information comprises:

determining, by the blockchain, whether the payment transaction information received by the plurality of nodes is consistent with one another;

determining that the blockchain agrees with the payment transaction information if more than half of the payment transaction information received by the plurality of nodes agree with each other.

5. The method of claim 4, wherein the uploading the exporter's document information into the blockchain comprises:

verifying document signature information in the document information;

calling the block chain to carry out consensus on the bill information in response to the bill signature information being real information; and

and responding to the block chain to achieve consensus on the bill information, and storing the bill information to the block chain through the block chain.

6. The method of claim 5, wherein the storing the document information to the blockchain by the blockchain comprises:

calling an intelligent contract in the block chain to perform duplicate removal processing on the document information to obtain processed document information; and

and storing the processed bill information to the block chain through the block chain.

7. The method of claim 5, wherein the invoking the blockchain to consensus the document information comprises:

determining whether the bill information received by the plurality of nodes is consistent with each other through the blockchain;

and if the bill information received by more than half of the nodes in the plurality of nodes is consistent with each other, determining that the block chain agrees with the bill information.

8. The method of claim 1, wherein,

the uploading the payment transaction information into a blockchain comprises: invoking the blockchain to calculate a first hash value H based on a plurality of elements in the payment transaction information₁And the first hash value H is used₁Storing the block chain;

the uploading the document credit of the exporter into the blockchain comprises: calling the blockchain to calculate a second hash value H based on a plurality of elements in the bill information₂And the second hash value H₂Storing into the block chain.

9. The method of claim 8, further comprising invoking the blockchain to perform, after uploading the payment transaction information into the blockchain:

receiving payment transaction information to be verified;

based on the payment to be verifiedCalculating a third hash value H by a plurality of elements in the transaction information₁’；

Comparing the third hash value H₁' with the first hash value H₁(ii) a And

if the third hash value H₁' with the first hash value H₁And if the payment transaction information is consistent with the payment transaction information to be verified, determining that the payment transaction information to be verified is real information.

10. The method of claim 8, further comprising invoking the blockchain to perform, after uploading the exporter's document information into the blockchain:

receiving document information to be verified;

calculating a fourth hash value H based on a plurality of elements in the document information to be verified₂’；

Comparing the fourth hash value H₂' with the second hash value H₂(ii) a And

if the fourth hash value H₂' with the second hash value H₂And if the bill information to be verified is consistent with the real bill information, determining that the bill information to be verified is real information.

11. The method of claim 1, wherein the payment transaction information includes subscription transaction information and remaining funds transaction information, the document information includes document copy information and document original information,

generating the subscription transaction information based on a prepaid subscription of the importer, wherein the subscription transaction information comprises subscription payment credentials;

uploading the subscription transaction information into the blockchain;

sending the deposit transaction information stored in the blockchain to the exporter in response to a deposit inquiry request of the exporter;

uploading receipt copy information of the exporter to the block chain, wherein the receipt copy information is goods information and logistics information generated when the exporter fulfills the transaction contract according to the subscription transaction information;

responding to a document copy query request of the importer, and sending the document copy information stored in the block chain to the importer;

generating the remaining money transaction information in response to the remaining money paid by the importer;

uploading the residual money transaction information to the blockchain;

responding to a remaining money inquiry request of the exporter, and sending the remaining money transaction information stored in the blockchain to the exporter; and

and uploading the document original information of the exporter to the block chain, wherein the document original information is generated by the exporter according to the residual money transaction information.

12. A blockchain based transaction processing apparatus for a document transaction platform, the apparatus comprising:

a generating module, which generates payment transaction information in response to an importer payment item, wherein the payment transaction information comprises money paid by the importer based on a transaction contract signed by the importer and an exporter, and the payment transaction information comprises payment evidence;

the first uploading module uploads the payment transaction information to a block chain;

the first sending module is used for responding to a payment transaction inquiry request of the exporter and sending the payment transaction information stored in the block chain to the exporter so that the exporter can confirm the authenticity of money according to the payment transaction information in the block chain;

the second uploading module uploads the bill information of the exporter to the block chain, wherein the bill information comprises goods information and logistics information generated when the exporter fulfills the transaction contract according to the payment transaction information; and

and the second sending module responds to a bill information query request of the importer and sends the bill information stored in the block chain to the importer so that the importer can confirm the authenticity of the goods information and the logistics information according to the bill information in the block chain.

13. A computing device, comprising:

one or more processors;

a memory for storing one or more programs,

wherein the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the method of any of claims 1-11.

14. A computer-readable storage medium storing computer-executable instructions for implementing the method of any one of claims 1 to 11 when executed.

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