WO2022166557A1

WO2022166557A1 - Warehouse receipt processing method based on blockchain, and warehouse receipt processing system

Info

Publication number: WO2022166557A1
Application number: PCT/CN2022/071811
Authority: WO
Inventors: 闫二风
Original assignee: 支付宝(杭州)信息技术有限公司; 蚂蚁区块链科技(上海)有限公司
Priority date: 2021-02-05
Filing date: 2022-01-13
Publication date: 2022-08-11
Also published as: CN112990811B; CN112990811A

Abstract

The present description provides a warehouse receipt processing method based on a blockchain, and a warehouse receipt processing system. The warehouse receipt processing system comprises a blockchain network and a goods storage party client; a warehouse receipt swap contract is deployed on the blockchain network to process a transaction representing a warehouse receipt swap application event; the processing result is stored in the blockchain network. The goods storage party client submits, to the blockchain network, a transaction for invoking the warehouse receipt swap contract, wherein service input information required for invoking the warehouse receipt swap contract, i.e., a target warehouse receipt identifier and a swap warehouse receipt identifier, is specified in the transaction initiated by the goods storage party client; the blockchain network executes the warehouse receipt swap contract, matches warehouse receipt information of the target warehouse receipt identifier from the goods storage party, and uses the right of the swap warehouse receipt to exchange at least part of the right of the matched target warehouse receipt.

Description

Warehouse receipt processing method and warehouse receipt processing system based on blockchain

technical field

This specification relates to the field of computer technology, and in particular, to a warehouse receipt processing method and a warehouse receipt processing system based on blockchain.

Background technique

At present, some physical goods can be temporarily stored in the warehouse of the warehousing party, and the storage vouchers returned by the warehousing party can be obtained. The storage vouchers can be regarded as the codes of these physical goods. For the convenience of subsequent description, such a storage document is referred to as a warehouse receipt, and an institution or individual storing physical goods at the warehousing side is referred to as a stockholder.

The inventory party can transfer the warehouse receipt to the resource party in exchange for resources matching the value of the warehouse receipt, and then perform some business processing on the acquired resources. The subsequent inventory party needs to return the acquired resources to the resource party according to the agreement with the resource party and retrieve the warehouse receipt.

SUMMARY OF THE INVENTION

In view of the above technical problems, this manual provides a warehouse receipt processing method and warehouse receipt processing system based on blockchain. The technical solutions are as follows:

According to a first aspect of the present specification, a method for processing warehouse receipts based on blockchain is provided, which is applied to a warehouse receipt processing system, wherein the warehouse receipt processing system includes a blockchain network and a stock client client, and the blockchain A warehouse receipt replacement contract is deployed on the network to process the transaction representing the warehouse receipt replacement application event, and the processing result is stored in the blockchain network; the method includes: the client side of the inventory side reports to the blockchain network Submit the transaction for invoking the warehouse receipt replacement contract, and the transaction initiated by the inventory client side specifies the business input information required for invoking the warehouse receipt replacement contract: target warehouse receipt identifier, replacement warehouse receipt identifier; the The blockchain network executes the warehouse receipt replacement contract, matches the warehouse receipt information identified by the stockist's target warehouse receipt, and uses the right to replace the warehouse receipt to exchange at least part of the right to the matched target warehouse receipt.

According to a second aspect of the present specification, a warehouse receipt processing system is provided, including a blockchain network and a stock client client; the blockchain network deploys a warehouse receipt replacement contract for processing a warehouse receipt replacement application event. transaction, the processing result is stored in the blockchain network; the inventory client is used by the blockchain network to submit a transaction that invokes the warehouse receipt replacement contract, and the inventory client initiates the transaction. The business input information required for invoking the warehouse receipt replacement contract is specified in the transaction: target warehouse receipt ID, replacement warehouse receipt ID; the blockchain network is used to execute the warehouse receipt replacement contract and match the inventory The warehouse receipt information identified by the target warehouse receipt, and the right to replace the warehouse receipt is exchanged for at least part of the right to the matched target warehouse receipt.

With the above technical solution, the blockchain network processes transactions representing the application event for warehouse receipt replacement based on the deployed smart contract, that is, the entire process of warehouse receipt replacement is recorded in the blockchain network, which enables the inventory party, the warehousing party and the resource party to communicate with each other. The interactive data between the two parties is credible, which solves the problem of trust between the three parties; at the same time, since the inventory party can exchange the possession of the replacement warehouse receipt for the possession of the target warehouse receipt, the inventory party can use other physical goods in exchange for the target warehouse. Physical goods in the order.

It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the specification.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present specification or the prior art, the following briefly introduces the accompanying drawings required in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some of the embodiments described in the embodiments of the present specification. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

Fig. 1a is a schematic diagram of an interaction flow of using warehouse receipts to exchange resources according to an embodiment of this specification;

Fig. 1b is a schematic diagram of an interaction flow of using a replacement warehouse receipt to exchange a target warehouse receipt according to an embodiment of the present specification;

2 is a schematic diagram of a warehouse receipt processing system framework according to an embodiment of the present specification;

3 is a schematic diagram of another warehouse receipt processing system framework according to an embodiment of the present specification;

4 is a schematic diagram of an interaction flow of a method for processing warehouse receipts based on blockchain according to an embodiment of this specification;

5 is a schematic diagram of an interaction flow of another blockchain-based warehouse receipt processing method according to an embodiment of this specification;

6 is a schematic diagram of another warehouse receipt processing system framework according to an embodiment of the present specification;

7 is a schematic diagram of an interaction flow of another blockchain-based warehouse receipt processing method according to an embodiment of this specification;

FIG. 8 is a schematic structural diagram of a device for configuring an apparatus according to an embodiment of the present specification.

Detailed ways

In order for those skilled in the art to better understand the technical solutions in the embodiments of the present specification, the technical solutions in the embodiments of the present specification will be described in detail below with reference to the accompanying drawings in the embodiments of the present specification. Obviously, the described implementation Examples are only some of the embodiments of the present specification, but not all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this specification should fall within the scope of protection.

The terms used in this specification are for the purpose of describing particular embodiments only and are not intended to limit the specification. As used in this specification and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in this specification to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information, without departing from the scope of the present specification. Depending on the context, the word "if" as used herein can be interpreted as "at the time of" or "when" or "in response to determining."

At present, some physical goods can be temporarily stored in the warehouse of the warehousing party, and the storage vouchers returned by the warehousing party can be obtained. The storage vouchers can be regarded as the codes of these physical goods. For the convenience of subsequent description, such a storage document is referred to as a warehouse receipt, and an institution or individual storing physical goods at the warehousing side is referred to as a stockholder. Among them, the warehouse receipt can record information such as the identification of the inventory party, the identification of the warehouse party, the type of physical goods stored, the quantity and value of the physical goods stored.

The inventory party can transfer the warehouse receipt to the resource party in exchange for resources that match the value of the warehouse receipt. It is understandable that here, the warehouse receipt is transferred to the resource party in exchange for resources that match the value of the warehouse receipt, which can be Transfer a certain right of the warehouse receipt to the resource party, and obtain a certain right of the resource matching the value of the warehouse receipt. For example, possession, ownership, etc. The right of the inventory party to the resource is only temporarily owned, not permanently owned, and the right of the resource party to the warehouse receipt is also temporarily owned. If certain conditions are met, the resource rights need to be returned to the resource party, and the right to the warehouse receipt will be retrieved at the same time. For example, when the time agreed by both parties is reached, the inventory party will return the resource rights to the resource party.

Under normal circumstances, the inventory party needs to return the rights of the acquired resources to the resource party according to the agreement with the resource party. When the resource rights are returned, it is usually necessary to return a part of the resources. After returning the resource rights, the inventory party can retrieve the right to the warehouse receipt, and use the warehouse receipt to obtain the physical goods stored in the warehouse party from the warehouse party.

As shown in Figure 1a, it is a flow chart of the interaction between the above three parties, in which the process of exchanging the rights of the warehouse receipts for the rights of resources by the inventory party in the figure may also be slightly different from that shown in the figure. After the order is issued, the right of the warehouse receipt is also directly sent to the resource party, and the resource party will provide the right of the resource to the stocker, and will issue the resource right that matches the value of the warehouse receipt to the stocker.

Among them, there are multiple interactive processes in the above process. If any party commits evil, it will have a serious impact on the entire business process. For example, after the inventory party obtains the resources, it does not recognize that it has reached an exchange consensus with the resource party, and refuses to transfer The warehouse receipt rights are transferred to the resource party; for another example, the resource party refuses to return the originally agreed rights of resources to the inventory party after obtaining the warehouse receipt rights of the inventory party, etc. After the warehouse party stores the physical goods of the inventory party , the corresponding warehouse receipt rights are not returned. That is to say, there is the possibility of any party doing evil, and neither party can completely trust each other.

In order to solve the above problems, the event that the inventory party uses the warehouse receipt rights to exchange the resource rights from the resource party can be stored in the blockchain network, so as to avoid the problem of denial and malicious behavior by any of the three parties.

Recording the above events can be recorded on the blockchain network for each warehouse receipt that has been converted by the occupier. In addition, each warehouse receipt can also be recorded, that is, whether the warehouse receipt with the owner's conversion occurs or not, it can be recorded on the blockchain. For example, the event used to characterize the generation process of each warehouse receipt can also be recorded. Recorded in the blockchain network.

In order to manage each warehouse receipt in more detail, the blockchain network can also manage each warehouse receipt based on smart contracts. For example, when the warehousing party generates a warehouse receipt, the warehousing party can also send a request to the blockchain network, The blockchain network can call the smart contract to issue a warehouse receipt. The issued warehouse receipt is an asset in the blockchain network. The issued warehouse receipt can contain various information about the warehouse receipt. The owner of the warehouse receipt, the current status, whether it has been exchanged for resources, etc.

The above method can solve the problem of trust among the three parties: the inventory party, the warehousing party, and the resource party. That is, the interaction data between the three parties is recorded on the blockchain network, which can prevent any party from doing evil or denying it.

In some cases, the inventory party may need to use the physical goods corresponding to the warehouse receipt before the agreed time to return the resources, but due to insufficient resources, sufficient resources cannot be returned to the resource party.

For example, the physical goods corresponding to the warehouse receipt have a shelf life, and the stockholder needs to take out the physical goods corresponding to the warehouse receipt from the warehouse and process them as soon as possible, but there are not enough resources to return to the resource side in exchange for the possession of the warehouse receipt.

For another example, if the current value of the physical goods corresponding to the warehouse receipt is significantly different from the value of the physical goods when the goods are exchanged for resources, the stockist usually hopes to regain the physical goods corresponding to the warehouse receipt as soon as possible.

On the one hand, under the circumstance that the current value of the physical goods increases a lot, for the inventory party, they usually hope to exchange the physical goods corresponding to the warehouse receipt as soon as possible, so as to use the physical goods to obtain more resources as soon as possible. For example, after the physical goods corresponding to the warehouse receipts are exchanged, they can be sold or exchanged for higher-value warehouse receipts.

On the other hand, when the current value of the physical goods has decreased a lot and has a continuous downward trend, for the stockist, they usually hope to exchange the physical goods corresponding to the warehouse receipt as soon as possible and sell them so that they can be sold as soon as possible. Stop loss.

In the above scenarios, the inventory party needs to obtain the physical goods corresponding to the warehouse receipt before the agreed time to return the resources. However, in these scenarios, if the inventory party does not have enough resources to return to the resource party, the warehouse cannot be exchanged. Therefore, the physical goods corresponding to the warehouse receipt cannot be obtained from the warehousing party.

In order to solve this problem, the method of "barter for goods" has been proposed, that is, the inventory party is allowed to use the rights of other warehouse receipts to replace the rights of warehouse receipts. For example, the inventory party stores some physical goods in the warehouse of the warehousing party, and obtains the target warehouse receipt. The inventory party uses the target warehouse receipt to exchange resources matching the value of the target warehouse receipt from the resource party, and agrees date to return the resource.

Before the scheduled return date, the inventory party needs to obtain the physical goods corresponding to the target warehouse receipt for some reasons, so the resource needs to be returned to the resource party. However, since the inventory party does not have enough resource parts to return, the inventory party can store some more physical goods to the warehouse party to obtain a new warehouse receipt. For the convenience of description, this new warehouse receipt is called a replacement warehouse receipt. The inventory party can replace the target warehouse receipt with the replacement warehouse receipt, that is, replace the corresponding physical goods in the target warehouse receipt with the physical goods corresponding to the replacement warehouse receipt, so as to obtain the physical goods of the target warehouse receipt for processing.

The specific interaction process may be as shown in FIG. 1b, wherein the type of the first physical goods stored by the inventory party may be the same as or different from the type of the second physical goods, which is not limited in this specification. Among them, in the process of exchanging the replacement warehouse receipt for the target warehouse receipt, the resource side also needs to review whether the value of the replacement warehouse receipt matches the value of the target warehouse receipt. It is understandable that the matching refers to the value of the replacement warehouse receipt. The value of the target warehouse receipt should not be lower than the value of the target warehouse receipt, so that the inventory party is allowed to replace the possession right of the target warehouse receipt with the possession right of the replacement warehouse receipt.

In this scenario, there is still the trust problem between the above-mentioned inventory party, warehousing party, and resource party. Therefore, the interactive process of using the replacement warehouse receipt to replace the target warehouse receipt can be recorded on the blockchain website to avoid Misbehavior or denial by either party.

Based on the above description, this specification proposes a blockchain-based warehouse receipt processing method, which is applied to a warehouse receipt processing system. As shown in FIG. 2 , the warehouse receipt processing system at least includes a blockchain network 210 and an inventory client 220 .

Among them, the blockchain network is a distributed shared ledger and database, which has the characteristics of decentralization, non-tampering, full trace, traceability, collective maintenance, openness and transparency, etc. Therefore, the data is stored in the blockchain network. Data security can be effectively guaranteed. Specifically, it may be a public chain network or a consortium chain network, which is not limited in this specification. Among them, when the blockchain network is a consortium chain network, both the warehousing party and the resource party can be nodes in the consortium chain network, or users of the nodes, which are not limited in this specification.

The blockchain network is deployed with a warehouse receipt replacement contract, the warehouse receipt replacement contract is used to process the transaction representing the warehouse receipt replacement application event, and the processing result is stored in the blockchain network; wherein, the warehouse receipt replacement contract is: The smart contract that executes the above transaction can be understood as a computer program agreed upon by all parties that can execute a certain transaction. Since its storage is deployed in the blockchain network, the smart contract is also immutable and completely credible. sexual.

As shown in Fig. 4, the interactive flow chart when executing warehouse receipt replacement proposed in this specification specifically includes the following process steps: S301, the client side of the inventory side submits a transaction calling the warehouse receipt replacement contract to the blockchain network ; Among them, the business input information required for invoking the warehouse receipt replacement contract is specified in the transaction: target warehouse receipt identifier, replacement warehouse receipt identifier; when the stockholder needs to apply for the right to replace the warehouse receipt for the right to the target warehouse receipt , the above transaction can be submitted to the blockchain network. Since the smart contract is equivalent to a program that can be executed according to the input information, the inventory party can add the target warehouse receipt identifier and the replacement warehouse receipt identifier in the transaction to call the smart contract to process according to the input information. That is, the client of the inventory side, every time a warehouse receipt replacement application is required, it constructs the warehouse receipt replacement application event as a transaction and submits it to the blockchain network to call the smart contract for processing.

In addition, when creating a warehouse receipt in this manual, the warehouse party will assign a unique identifier to each warehouse receipt to identify and distinguish different warehouse receipts. For example, the warehousing party can generate a warehouse order number for each warehouse order according to the order in which each warehouse order is generated, which is used as the identifier of each warehouse order to distinguish different warehouse orders. That is, the above-mentioned replacement warehouse receipt identifier is the information used to identify the replacement warehouse receipt, and the above-mentioned target warehouse receipt identifier is the information used to identify the target warehouse receipt.

Of course, in the case where the blockchain network issues warehouse receipts based on smart contracts, the smart contract can write the warehouse receipt identity in the information of the issued warehouse receipt according to the warehouse receipt identity provided by the warehousing party.

S303, the blockchain network executes the warehouse receipt replacement contract, matches the warehouse receipt information identified by the target warehouse receipt of the stockist, and uses the right to replace the warehouse receipt to exchange at least part of the matched target warehouse receipt In this step, after receiving the above-mentioned transaction, the blockchain network executes the warehouse receipt replacement contract for processing. The above-mentioned matching usually refers to finding the target warehouse receipts pre-released or stored in the blockchain network, that is, according to the target Warehouse receipt ID, find the warehouse receipt information of the target warehouse receipt stored in advance. Further use the right to replace the warehouse receipt to exchange at least part of the right to the matched target warehouse receipt, which may specifically be to release the associated relationship between the resource party and the target warehouse receipt, and release the inventory party from the replacement. The associated relationship between the warehouse receipts, establish the relationship between the resource party and the replacement warehouse receipts; at the same time, in the case of exchanging the rights to all the matched target warehouse receipts, establish the inventory party and the target warehouse. In the case of the right to exchange part of the matched target warehouse receipt, the target warehouse receipt is split into the exchanged part of the warehouse receipt and the unexchanged part of the warehouse receipt, and the inventory party and the unexchanged part of the warehouse receipt are established. The association relationship of the exchanged part of the warehouse receipts establishes the association relationship between the resource party and the unexchanged part of the warehouse receipts.

According to the above description, when the inventory party submits the transaction to invoke the warehouse receipt replacement contract, it is usually because the inventory party has replaced the rights of the target warehouse receipt with the resource party to obtain the corresponding resource rights. In order to make this process credible, this process can also be stored on the blockchain. A specific method can be that the warehouse receipt replacement contract is also used to process transactions representing the warehouse receipt transfer application event. The specific processing method It can be that the inventory party submits a transaction representing the warehouse receipt transfer application event to the blockchain network, and the transaction also calls the warehouse receipt replacement contract. The transaction may include the identification of the target warehouse receipt. The blockchain network can transfer the right of the stocker's target warehouse receipt to the resource side; specifically, it can be to release the association between the stocker and the target warehouse receipt, and establish the resource side and the resource side. Describe the relationship between the target warehouse receipts. At the same time, the resource party can transfer the rights of the resource matching the value of the target warehouse receipt to the inventory party, and upload the resource quantity and transfer result to the blockchain network for storage, and the corresponding smart contract can be stored in the target warehouse. The corresponding resource and exchanged status are recorded in the warehouse receipt.

In the above process, it can be understood that the inventory party has negotiated with the resource party in advance, and the resource party and the agreed inventory party can exchange the right to replace the warehouse receipt for the right of the target warehouse receipt, so the blockchain network can execute the warehouse receipt. A single replacement contract is used to realize the above process, that is, directly use the right to replace the warehouse receipt to exchange at least part of the right to the matched target warehouse receipt.

However, if the inventory party has not negotiated with the resource party in advance, the resource party usually needs to review, that is, it needs to determine whether it agrees that the inventory party can use the right to replace the warehouse receipt in exchange for the right of the target warehouse receipt.

Therefore, as shown in Figure 3, the warehouse receipt processing system may also include a resource client 230; as shown in Figure 5, in the process of executing the smart contract on the blockchain network, in exchange for at least part of the Before the right of the matched target warehouse receipt, it may further include: S302a, after monitoring the warehouse receipt replacement application event, the resource client client obtains the target warehouse receipt identifier and the replacement from the blockchain network. Warehouse receipt identification, and provide it to the resource party to check whether the target warehouse receipt and the replacement warehouse receipt match the value; among them, it can be outside the blockchain network, the inventory party actively contacts the resource party, so that the resource party can use the resources The client side obtains the target warehouse receipt identifier and the replacement warehouse receipt identifier from the blockchain network.

It can also be that the resource client client obtains the target warehouse receipt identifier and the replacement warehouse receipt identifier from the blockchain network when monitoring the execution of the warehouse receipt replacement contract by the blockchain network.

After obtaining the target warehouse receipt identifier and replacement warehouse receipt identifier, the resource client client can display the obtained target warehouse receipt identifier information and replacement warehouse receipt identifier information to the resource user, and the resource user can obtain the two warehouse receipts according to the obtained information. The identification of the corresponding target warehouse receipt and the information of the replacement warehouse receipt, and further, according to the warehouse receipt replacement application event, the obtained target warehouse receipt and the information of the replacement warehouse receipt, to check whether the value of the target warehouse receipt and the replacement warehouse receipt match. . When the inventory party needs to replace all the rights of the target warehouse receipt with the right to replace the warehouse receipt, it can check whether the value of the replacement warehouse receipt is greater than or equal to the value of the target warehouse receipt. If the value is not enough to replace the target warehouse receipt, the audit result will be rejected.

If the inventory party needs to use the replacement warehouse receipt to replace part of the possession of the target warehouse receipt, it can check whether the value of the replacement warehouse receipt is greater than or equal to the value of the part of the possession right that needs to be replaced by the target warehouse receipt. If so, the review result is passed. , if not, the audit result is not passed.

Of course, it can be understood that the information on whether the inventory party uses the right to replace the warehouse receipt to replace all or part of the ownership of the target warehouse receipt can also be recorded in the transaction representing the warehouse receipt replacement application event. After the audit is completed, the resource side can input the audit result through the client side of the resource side, that is, the client side of the resource side can receive the audit result input by the resource side.

S302b, in response to the operation of the resource party, the resource party client submits a transaction for invoking the warehouse receipt replacement contract to the blockchain network, and the transaction initiated by the resource party client specifies the resource party's The first audit result; after receiving the audit result of the resource party, the client of the resource side can construct the audit result as the first audit transaction and submit it to the blockchain network, and then the audit result can be stored in the blockchain network to avoid The resource side does evil, such as not acknowledging the audit results.

Correspondingly S303, the blockchain network may replace at least part of the right of the matched target warehouse receipt with the right to replace the warehouse receipt based on the first audit result of the resource party.

In addition, in this step, the smart contract may be invoked by the blockchain network, and according to the first audit transaction, if it is determined that the resource party's audit result is passed, the relationship between the resource party and the target warehouse receipt is released. The association relationship is to release the association relationship between the inventory party and the replacement warehouse receipt, and establish the association relationship between the resource party and the replacement warehouse receipt. In addition, if the verification result of the resource side indicates that the verification fails, a record of failing the verification will be recorded for the target warehouse receipt.

In this embodiment, if the inventory party has not negotiated with the resource party in advance, the audit and audit results can be stored in the blockchain network, which further improves the overall credibility.

In the above-mentioned way, the blockchain network processes the transactions representing the warehouse receipt replacement application event based on the deployed smart contract, that is, the entire process of the warehouse receipt replacement is recorded in the blockchain network, which can enable the inventory party, the warehousing party and the resource party to communicate with each other. The interactive data is credible, which solves the problem of trust between the three parties; at the same time, since the inventory party can exchange the possession of the replacement warehouse receipt for the possession of the target warehouse receipt, the inventory party can use other physical goods to exchange for the target warehouse receipt. physical goods in .

It can be understood that the blockchain network may simultaneously receive transactions representing warehouse receipt replacement events, and the above-mentioned method can be implemented for the processing flow of each transaction. Different transactions are distinguished by corresponding identifiers. For example, the identifiers of target warehouse receipts and replacement warrants corresponding to different warehouse receipt replacement events can be used as identifiers for different transactions, or pre-specified identifier generation rules can be used. The identification of each transaction is generated to distinguish different warehouse receipt replacement transactions. This manual does not limit the identification of warehouse receipt replacement transactions.

In addition, there may be multiple inventories and multiple warehousing parties in the system. The business processing procedures of a single inventory party and a single warehousing party are described in this specification. It is understood that the processing procedures can be applied to every single storage party in the system. An inventory party or warehouse party.

In order to improve the rigor of the audit in the above warehouse receipt replacement process, an audit link of the warehousing side can also be added in the audit process, that is, as shown in Figure 6, the warehouse receipt processing system also includes the warehouse side client 240.

After monitoring the warehouse receipt replacement application event, the warehousing client obtains the target warehouse receipt identifier and the replacement warehouse receipt identifier from the blockchain network, and provides them to the warehousing party for review. is a variety of ways.

Among them, a warehouse party's auditing method may be: the client side of the warehouse party obtains the target warehouse receipt identifier and the replacement warehouse receipt identifier, and provides them to the warehousing party, so that the warehousing party can verify whether the target warehouse receipt and the replacement warehouse receipt are valuable. match;

The client of the warehouse side submits the second audit result to the blockchain network; wherein, the second audit result includes the audit result of the warehouse side.

The above-mentioned audit method is the specific judgment principle, which can be referred to the above-mentioned audit process of the resource side, and will not be described in detail here. Here, the warehousing client also reviews the value matching of the two warehouse receipts, which allows the warehousing to also participate in the review process, and the review results can also be given to the resource for reference.

In addition, the warehousing party, as the party that stores the physical goods of the inventory party, can check the storage status of the physical goods corresponding to the warehouse receipt at any time. Therefore, another auditing method of the warehousing side can also be: the client side of the warehousing side obtains the identifier of the replacement warehouse receipt and provides it to the warehousing side, so that the warehousing side can verify whether the replacement warehouse receipt is genuine; The blockchain network submits the second audit result; the second audit result includes the audit result of the warehousing party. That is, the client of the warehousing side provides the replacement warehouse receipt identifier in the warehouse receipt replacement transaction to the warehousing side, and the warehousing side checks whether the physical goods corresponding to the replacement warehouse receipt exist in the warehouse according to the identifier. If it does not exist, the audit will not pass. At the same time, the warehousing client can also provide the target warehouse receipt identifier in the warehouse receipt replacement transaction to the warehousing side, and the warehousing side can check whether the physical goods corresponding to the target warehouse receipt exist in the warehouse according to the identifier, and check if it exists. Passed, if it does not exist, the review is not passed, that is, the authenticity of the target warehouse receipt is also reviewed.

In addition, if other detailed information about the warehouse receipt is stored in the warehouse receipt replacement transaction, such as the storage location, inventory quantity, value of the physical goods corresponding to the replacement warehouse receipt, the storage location, inventory quantity, and value of the physical goods corresponding to the target warehouse receipt Value and other information, in this link, the warehousing party can also verify the authenticity of the detailed information about the target warehouse receipt and the replacement warehouse receipt stored in the replacement transaction according to the actual situation.

Adding the above-mentioned method of warehousing to verify the authenticity of warehouse receipts can further improve the security of the overall process.

Considering that if the replacement warehouse receipt replaces the target warehouse receipt successfully, it may involve transferring the physical goods corresponding to the replacement warehouse receipt to the actual storage location. For example, transfer from one warehouse to another. During this process, additional charges may arise due to the need to transfer storage locations. The transfer storage location is usually managed and handled by the warehouse.

Among them, due to some objective reasons, the warehousing party may not be able to transfer the physical goods corresponding to the replacement warehouse receipts to the actual storage location, for example, due to traffic reasons, weather reasons, etc. The transfer of physical goods to the actual storage location will incur additional costs. Using the cost of transportation, and the warehousing party cannot afford this cost, the physical goods cannot be transferred to the actual storage location.

Therefore, an audit method for the warehousing party can also be added to the warehousing party to audit whether the physical goods corresponding to the replacement warehouse receipts are allowed to change the storage location.

Specifically, the client of the warehousing side obtains the identifier of the replacement warehouse receipt and provides it to the warehousing side, so that the warehousing side can review whether to allow the transfer of the storage location of the physical goods corresponding to the replacement warehouse receipt;

The client of the warehouse side can submit the second audit result to the blockchain network; the second audit result includes the audit result of the warehouse side.

Among them, the warehousing party can judge whether the current objective conditions support the transfer of the storage location of the physical goods corresponding to the replacement warehouse receipt during the actual review.

For example, when it is determined that the inventory direction has paid the cost of transferring the physical goods corresponding to the replacement warehouse receipt to the actual storage location, and the factors such as traffic and weather allow, it can be determined to pass the review, otherwise the review will fail.

Or even though the cost is generated, the warehousing party can determine whether it is willing to pay the cost according to the actual cost. If it is willing, and the factors such as traffic and weather are also allowed, it will be approved. If it is not willing, and If the warehousing party does not pay the fee, it will be determined that the audit is not passed. This specification does not limit the review conditions for reviewing whether to allow the transfer of storage locations.

It is understood that the warehousing party may perform all or part of the above-mentioned audit methods, and the instructions do not limit this.

The warehousing client can, in response to the operation of the warehousing, submit to the blockchain network a transaction that invokes the warehouse receipt replacement contract, and the transaction initiated by the resource client specifies the warehousing's second Audit results.

Correspondingly, the blockchain network can use the right to replace the warehouse receipt to replace at least part of the right of the matched target warehouse receipt based on the first audit result of the resource party and the second audit result of the warehouse party. .

The above-mentioned audit performed by the warehousing party can be conducted before the audit by the resource party, after the audit by the resource party, or in parallel with the resource party, that is, the warehouse party and the resource party conduct audits independently without affecting each other. .

In the end, if either the warehouse party or the resource party fails to pass the review, the warehouse receipt replacement request made by the warehouse party is prohibited.

In addition, considering that the resource party is the party that finally transfers the possession of the resource to the inventory party, its audit result can be used as the final determination result, that is, the warehouse party's audit can be carried out before the resource party's audit.

As shown in Fig. 7, a feasible way may be that the blockchain network invokes the smart contract, and according to the second audit transaction, when it is determined that the warehousing party's audit result is passed, the warehouse receipt is replaced The application event is notified to the resource-side client.

That is, the blockchain network calls the smart contract to first notify the warehouse receipt replacement application event to the warehousing client. After the warehouse has reviewed it, it will notify the resource client after the warehouse has passed the review, and the resource will then review it.

The resource party, as the party with the right to possess the target warehouse receipt, is the final reviewer of the warehouse receipt replacement application event. After confirming that the warehousing party has passed the review, it will conduct further review. If the warehousing party fails to pass the review, no review is required. . This method saves system resources and improves audit efficiency.

When the inventory party does not intend to use the replacement warehouse receipt to replace all the physical goods corresponding to the target warehouse receipt, that is, does not intend to replace all the possession rights of the target warehouse receipt, the business information specified by the transaction submitted by the inventory party may also include replacement. The quantity of goods, that is, the quantity of goods that needs to be replaced from the physical goods corresponding to the target warehouse receipt using the replacement warehouse receipt.

In this way, after the blockchain network calls the smart contract and notifies the resource client of the warehouse receipt replacement application event according to the warehouse receipt replacement transaction, the resource client can obtain the replacement from the blockchain network. The quantity of goods is provided to the resource party, and the resource party can determine whether the value of the replacement goods in all the goods corresponding to the target warehouse receipt matches the value of the replacement warehouse receipt. The matching principle here can be that the value of the replacement warehouse receipt is greater than or equal to the value of the goods with the replacement quantity in all the goods corresponding to the target warehouse receipt, then it is matched, otherwise, it is not matched.

In addition, in order to avoid executing the above replacement process, other processing processes will also process each target warehouse order and replacement warehouse receipt at the same time, for example, the process of returning resources to the resource party to change the ownership of the target warehouse order will be processed at the same time.

Therefore, when the blockchain network receives the warehouse receipt replacement transaction submitted by the inventory client, it can convert the target warehouse receipt identifier and the replacement warehouse receipt identifier in the warehouse receipt replacement transaction to the target warehouse receipt and replacement respectively based on the smart contract. The warehouse receipt is placed in a frozen state. In the case of being placed in a frozen state, the blockchain network refuses to call the warehouse receipt replacement contract for other transactions of the target warehouse receipt, and the other transaction is an application for replacement with the warehouse receipt. Transactions unrelated to events. That is, when the smart contract executes the replacement transaction, it does not perform other processing on the target warehouse receipt or the replacement warehouse receipt at the same time, which avoids the problem of data confusion caused by multiple business processing on each warehouse receipt at the same time.

After the target warehouse receipt is frozen, the target warehouse receipt can be released when the blockchain network receives the first audit result, that is, the resource party's audit result, and determines that the resource party's audit result is unacceptable based on the smart contract. frozen state. That is, in the case of failure to pass the review, it is determined that the replacement review process is over, so the frozen status of the target warehouse receipt can be lifted. In the case of approval, since the possession of the target warehouse receipt will be returned to the inventory party, the target warehouse receipt can be directly placed in an invalid state.

As for the replacement warehouse receipt, after the blockchain network receives the first audit result, regardless of whether it is approved or not, the frozen state of the replacement warehouse receipt can be released based on the smart contract, that is, when the replacement is determined to be successful or the replacement fails. Under all conditions, the frozen state of the target warehouse receipt is released. Because no matter whether it is approved or not, for the replacement warehouse receipt, it will still exist, but the owner may have replaced it.

In addition, the blockchain network can also record the agreed duration of resources occupied by each storage party by smart contracts, and record the duration of resources occupied by the storage party. Among them, the two durations can be recorded when the target event is recorded. And when it is determined that the resource party's right to the target warehouse receipt has expired, the resource party refuses to use the right to replace the warehouse receipt to exchange at least part of the right to the matched target warehouse receipt. When it is determined that the right of the resource party to the target warehouse receipt has expired, the right to exchange the right of the replacement warehouse receipt for at least part of the matched target warehouse receipt is refused. That is, when the inventory party needs to return the resources to the resource party, the storage party is no longer allowed to replace the target warehouse receipt with the replacement warehouse receipt. In addition, the processing result can be automatically generated, so that when the resource client and the stock client detect the processing result, the resource client and the stock client provide the processing result to the resource and stock, so that the The inventory party shall return the corresponding resources to the resource party as soon as possible in exchange for the right to the target warehouse receipt.

As can be seen from the scenarios described above, when the current value of the physical goods corresponding to the warehouse receipt is significantly different from the value of the physical goods when the physical goods are exchanged for resources, the stockholder usually has the need to obtain the physical goods corresponding to the warehouse receipt again.

For the inventory party, it is not always concerned about the value changes of the physical goods corresponding to the warehouse receipts. At the same time, for a storage party, it may give the ownership of multiple warehouse receipts to the resource party at the same time in exchange for resources. Therefore, it is also inconvenient for such stockists to pay attention to the value of the physical goods corresponding to each warehouse receipt.

In order to solve the above problem, this embodiment proposes the following solution: in the warehouse receipt processing system, add a commodity price monitoring client, and the commodity price monitoring client may be a node on the blockchain network, or a district A user of a node on the blockchain network, that is, it can interact with the blockchain network.

The client terminal of the goods price monitoring party can submit a transaction for invoking the warehouse receipt replacement contract to the blockchain network whenever the condition of the goods price certificate corresponding to the physical goods corresponding to the target warehouse receipt is satisfied; The business input information required when invoking the warehouse receipt replacement contract is specified in the transaction initiated by the warehouse receipt transaction: the current unit price of the physical goods corresponding to the target warehouse receipt; for example, the physical goods in storage are gold and silver. When waiting for physical goods with the property of value fluctuation, the client terminal of the goods price monitoring party may be a device corresponding to a price monitoring institution such as an exchange. It can monitor the fluctuation of the value of each physical goods. Usually, the monitored value is the unit price of each type of physical goods, and the unit price can be the price per unit weight, the price per unit quantity, etc.

Wherein, the above-mentioned condition of inventory certificate of goods price can be the preset period of inventory certificate of goods price, such as the period of inventory certificate of goods price, which can be a period of one day, one week or one month. At 9:00 a.m. every day, the current unit price of the physical goods corresponding to the target warehouse receipt is submitted to the blockchain network.

The condition of the certificate of goods price can also be the change of the unit price of the physical goods, that is, once the unit price of the physical goods is changed, the unit price of the physical goods will be submitted to the blockchain network; the condition of the certificate of the goods price can also be that the physical goods are detected. The unit price of the target warehouse has changed greatly, for example, when there is a big difference compared with the unit price uploaded to the blockchain network last time, the unit price of the physical goods corresponding to the target warehouse receipt is submitted to the blockchain network.

Among them, the way that the client of the commodity price monitoring party obtains the type of physical goods corresponding to the target warehouse receipt may be by obtaining the warehouse receipt transfer transaction stored on the blockchain network, so as to determine the identifier of each target warehouse receipt, and further The type of physical goods corresponding to each target warehouse receipt can be determined.

In addition, the client of the goods price monitoring party does not need to know the type of physical goods corresponding to the target warehouse receipt, and only needs to submit the current unit prices of all the monitored physical goods to the blockchain network.

After the client of the commodity price monitoring party submits the commodity price deposit certificate transaction to the blockchain network, the blockchain network executes the warehouse receipt replacement contract, compares the current unit price with the historical unit price, and obtains a comparison result; the historical unit price is, when the warehouse receipt transfer application event occurs, the unit price of the physical goods corresponding to the target warehouse receipt; that is, when the inventory party transfers the rights of the target warehouse receipt to the resource party in exchange for the rights of resources with matching values, the target warehouse The unit price of the physical goods corresponding to the order; if the client of the stocker detects that the comparison result meets the preset condition from the blockchain network, it will ask the stocker whether to trigger the warehouse receipt replacement application event.

The above preset conditions may be that the comparison result shows that the current unit price of the physical goods is higher than the historical unit price, and the price difference is greater than the preset value; or the comparison result may be that the current unit price of the physical goods is lower than the historical unit price, and the price difference is greater than the preset value. value.

Among them, when the client of the inventory side asks, it can display the current unit price, historical unit price, the difference between the two unit prices, and the total difference calculated based on the total amount of the physical goods to the inventory side, and the inventory side can Decide whether to trigger the warehouse receipt replacement application event according to the information displayed on the client side of the inventory side.

For example, when it is determined that the value of the physical goods corresponding to the target warehouse receipt has increased significantly, the inventory party can trigger the warehouse receipt replacement application event, and can replace the target warehouse receipt with the replacement warehouse receipt of other physical goods with relatively stable value fluctuations. In this way, the physical goods corresponding to the target warehouse receipts are obtained, so that the physical goods can be used to obtain more resources as soon as possible, such as selling the physical goods or exchanging the warehouse receipts with higher value.

For another example, when the value has decreased a lot and has a continuous downward trend, in order to quickly exchange the physical goods corresponding to the warehouse receipt for sale to stop the loss as soon as possible, the warehouse receipt replacement application event can also be triggered.

In this embodiment, the stockist does not need to monitor the value fluctuation of the physical goods corresponding to each target warehouse receipt, but based on the unit price data submitted by the client of the goods price monitor to the blockchain network, and based on the blockchain network Viewing the processing results of the smart contract in the smart contract improves the overall intelligence. At the same time, since the unit price data is submitted to the blockchain network, the reliability of the unit price of the physical goods can be further improved, and the inventory party can avoid untrustworthy goods due to unreliable goods. The unit price triggers the warehouse receipt replacement application event.

It can be understood that the above-mentioned resources may be resources such as funds and points, which are not limited in this specification.

When the resource is funds, the corresponding resource party can be various financial institutions, such as banks, third-party payment institutions, etc., and the corresponding inventory party can be the party that needs to borrow funds from the financial institution, and the corresponding inventory party can transfer physical goods. Store in the warehouse and obtain funds provided by financial institutions that match the value of its physical goods. When the warehouse does not have sufficient funds to repay the financial institution, but needs to obtain the physical goods stored in the warehouse, the above method can be used. Warehouse receipts and the data generated by the review process of warehouse receipt replacement warehouse receipts are all recorded on the blockchain network, which solves the problem of trust between stockers, warehousing parties, and financial institutions.

As shown in Fig. 2, corresponding to the aforementioned method for processing warehouse receipts based on blockchain, this specification also provides a warehouse receipt processing system, including a blockchain network 210 and a stock client client 220; The blockchain network 210 is deployed with a warehouse receipt replacement contract, which is used to process transactions representing the warehouse receipt replacement application event, and the processing results are stored in the blockchain network; the inventory client 220 is used for the district The blockchain network submits a transaction for invoking the warehouse receipt replacement contract, and the transaction initiated by the inventory client side specifies the business input information required for invoking the warehouse receipt replacement contract: target warehouse receipt ID, replacement warehouse receipt ID ; the blockchain network 210 is used to execute the warehouse receipt replacement contract, match the warehouse receipt information identified by the inventory party's target warehouse receipt, and use the right to replace the warehouse receipt to exchange at least part of the matched warehouse receipt. The right to the target warehouse order.

In one embodiment, the warehouse receipt replacement contract is also used to process transactions representing the warehouse receipt transfer application event; the blockchain network 210 is specifically used to transfer the right of the target warehouse receipt of the stockist To the resource party; wherein the resource party transfers the right of the resource matching the value of the target warehouse receipt to the inventory party.

As shown in FIG. 3 , in one embodiment, the system further includes: a resource-side client 230; the resource-side client 230 is further configured to: after monitoring the warehouse receipt replacement application event The blockchain network obtains the identifier of the target warehouse receipt and the identifier of the replacement warehouse receipt, and provides it to the resource party to check whether the value of the target warehouse receipt and the replacement warehouse receipt match; The blockchain network 210 submits a transaction that invokes the warehouse receipt replacement contract, and the first audit result of the resource party is specified in the transaction initiated by the resource client; the blockchain network 210 is also used for Based on the first review result of the resource party, at least part of the right of the matched target warehouse receipt is replaced with the right to replace the warehouse receipt.

In one embodiment, the blockchain network 210 is specifically configured to release the association relationship between the inventory party and the target warehouse receipt, and establish an association relationship between the resource party and the target warehouse receipt; The blockchain network 210 is specifically used to release the association relationship between the resource party and the target warehouse receipt, release the association relationship between the inventory party and the replacement warehouse receipt, and establish the resource party and the replacement warehouse. In the case of exchanging the right to exchange all of the matched target warehouse receipts, establish the association relationship between the stockist and the target warehouse receipt; in exchange for the right to exchange some of the matched target warehouse receipts In this case, split the target warehouse receipt into the part of the warehouse receipt that is exchanged and the part that has not been exchanged, establish the association relationship between the inventory party and the part of the warehouse receipt to be exchanged, and establish the relationship between the resource party and the The relationship between the part of the warehouse receipt that has not been exchanged is described.

In one embodiment, as shown in FIG. 6 , the warehouse receipt processing system further includes a warehousing client 240; the warehousing client 240 is used for, after monitoring the warehouse receipt replacement application event, The blockchain network obtains the target warehouse receipt identifier and the replacement warehouse receipt identifier, and provides them to the warehousing party for review; the warehousing party's review includes at least one of the following: reviewing the target warehouse receipt and the replacement warehouse receipt. Whether the value of the warehouse receipt matches; checking whether the replacement warehouse receipt is genuine; checking whether the storage location of the physical goods corresponding to the replacement warehouse receipt is allowed to be transferred; the warehouse client 240 is also used to respond to the operation of the warehouse, Submit a transaction calling the warehouse receipt replacement contract to the blockchain network, and the transaction initiated by the resource client specifies the second audit result of the warehouse; the blockchain network 210 also uses Based on the first audit result of the resource side and the second audit result of the warehouse side, the right to replace at least part of the matched target warehouse receipt is replaced by the right to replace the warehouse receipt.

In one embodiment, the resource side client 230 is specifically configured to provide the target warehouse receipt identifier and the replacement warehouse receipt identifier to the storage side when it is determined that the second audit result representation of the warehouse side is passed. resource side.

In one embodiment, the blockchain network 210 is further configured to place the target warehouse receipt in a frozen state under the condition of matching the warehouse receipt information identified by the target warehouse receipt of the stockist; wherein, in When the target warehouse receipt is in a frozen state, the blockchain network refuses to call the warehouse receipt replacement contract for other transactions of the target warehouse receipt, and the other transaction is an application event for the replacement of the warehouse receipt with the warehouse receipt. unrelated transactions.

In one embodiment, the blockchain network 210 is further configured to release the frozen state of the target warehouse receipt when it is determined that the replacement is successful or the replacement fails.

In one embodiment, the blockchain network 210 is further configured to refuse to use the right of the replacement warehouse receipt in exchange for at least part of it when it is determined that the resource party's right to the target warehouse receipt expires The right of the matched target warehouse receipt.

In one embodiment, the warehouse receipt processing system further includes: a commodity price monitoring client 250; the commodity price monitoring client 250 is configured to satisfy the commodity price inventory condition of the physical goods corresponding to the target warehouse receipt When the warehouse receipt replacement contract is invoked, the transaction of invoking the warehouse receipt replacement contract is submitted to the blockchain network; the business input information required for invoking the warehouse receipt replacement contract is specified in the transaction initiated by the price deposit certificate transaction: the The current unit price of the physical goods corresponding to the target warehouse receipt; the blockchain network 210 is used to execute the warehouse receipt replacement contract, compare the current unit price with the historical unit price, and obtain a comparison result; the historical unit price is, the When the warehouse receipt transfer application event occurs, the unit price of the physical goods corresponding to the target warehouse receipt; the stocker client 220 is configured to ask the stocker whether the trigger is triggered when monitoring that the comparison result meets the preset condition Warehouse receipt replacement application event.

In one embodiment, the right to the target warehouse receipt includes: the right to possess the target warehouse receipt; and the right to the replacement warehouse receipt includes: the right to possess the replacement warehouse receipt.

For details of the implementation process of the functions and functions of each component in the above-mentioned device, please refer to the implementation process of the corresponding steps in the above-mentioned method, which will not be repeated here.

As for the apparatus embodiments, since they basically correspond to the method embodiments, reference may be made to the partial descriptions of the method embodiments for related parts. The apparatus embodiments described above are merely illustrative. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution in this specification. Those of ordinary skill in the art can understand and implement it without creative effort.

Embodiments of the present specification further provide a computer device, which at least includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the foregoing method when executing the program. The method includes at least: a method executed by the above-mentioned inventory-side client or the above-mentioned resource-side client.

FIG. 8 shows a schematic diagram of a more specific hardware structure of a computing device provided by an embodiment of this specification. The device may include: a processor 1010 , a memory 1020 , an input/output interface 1030 , a communication interface 1040 and a bus 1050 . The processor 1010 , the memory 1020 , the input/output interface 1030 and the communication interface 1040 realize the communication connection among each other within the device through the bus 1050 .

The processor 1010 can be implemented by a general-purpose CPU (Central Processing Unit, central processing unit), a microprocessor, an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), or one or more integrated circuits, etc. program to implement the technical solutions provided by the embodiments of this specification.

The memory 1020 may be implemented in the form of a ROM (Read Only Memory, read-only memory), a RAM (Random Access Memory, random access memory), a static storage device, a dynamic storage device, and the like. The memory 1020 may store an operating system and other application programs. When implementing the technical solutions provided by the embodiments of this specification through software or firmware, the relevant program codes are stored in the memory 1020 and invoked by the processor 1010 for execution.

The input/output interface 1030 is used to connect the input/output module to realize information input and output. The input/output/module can be configured in the device as a component (not shown in the figure), or can be externally connected to the device to provide corresponding functions. The input device may include a keyboard, a mouse, a touch screen, a microphone, various sensors, etc., and the output device may include a display, a speaker, a vibrator, an indicator light, and the like.

The communication interface 1040 is used to connect a communication module (not shown in the figure), so as to realize the communication interaction between the device and other devices. The communication module may implement communication through wired means (eg, USB, network cable, etc.), or may implement communication through wireless means (eg, mobile network, WIFI, Bluetooth, etc.).

Bus 1050 includes a path to transfer information between the various components of the device (eg, processor 1010, memory 1020, input/output interface 1030, and communication interface 1040).

It should be noted that although the above-mentioned device only shows the processor 1010, the memory 1020, the input/output interface 1030, the communication interface 1040 and the bus 1050, in the specific implementation process, the device may also include necessary components for normal operation. other components. In addition, those skilled in the art can understand that, the above-mentioned device may only include components necessary to implement the solutions of the embodiments of the present specification, rather than all the components shown in the figures.

Embodiments of the present specification further provide a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the foregoing method is implemented. The method includes at least: a method executed by the above-mentioned inventory-side client or the above-mentioned resource-side client.

Computer-readable media includes both persistent and non-permanent, removable and non-removable media, and storage of information may be implemented by any method or technology. Information may be computer readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read only memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), Flash Memory or other memory technology, Compact Disc Read Only Memory (CD-ROM), Digital Versatile Disc (DVD) or other optical storage, Magnetic tape cartridges, magnetic disk storage or other magnetic storage devices or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media does not include transitory computer-readable media, such as modulated data signals and carrier waves.

From the description of the above embodiments, those skilled in the art can clearly understand that the embodiments of the present specification can be implemented by means of software plus a necessary general hardware platform. Based on such understanding, the technical solutions of the embodiments of this specification or the parts that make contributions to the prior art may be embodied in the form of software products, and the computer software products may be stored in storage media, such as ROM/RAM, A magnetic disk, an optical disk, etc., includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in various embodiments or some parts of the embodiments in this specification.

The systems, devices, modules or units described in the above embodiments may be specifically implemented by computer chips or entities, or by products with certain functions. A typical implementation device is a computer, which may be in the form of a personal computer, laptop computer, cellular phone, camera phone, smart phone, personal digital assistant, media player, navigation device, e-mail device, game control desktop, tablet, wearable device, or a combination of any of these devices.

Each embodiment in this specification is described in a progressive manner, and the same and similar parts between the various embodiments may be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the apparatus embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and reference may be made to the partial description of the method embodiment for related parts. The device embodiments described above are only illustrative, wherein the modules described as separate components may or may not be physically separated. When implementing the solutions of the embodiments of the present specification, the functions of each module may be integrated into the same module. or multiple software and/or hardware implementations. Some or all of the modules may also be selected according to actual needs to achieve the purpose of the solution in this embodiment. Those of ordinary skill in the art can understand and implement it without creative effort.

The above are only specific implementations of the embodiments of the present specification. It should be pointed out that for those skilled in the art, without departing from the principles of the embodiments of the present specification, several improvements and modifications can be made. These Improvements and modifications should also be regarded as the protection scope of the embodiments of the present specification.

Claims

A warehouse receipt processing method based on blockchain, which is applied to a warehouse receipt processing system, the warehouse receipt processing system includes a blockchain network and a stock client client, the blockchain network deploys a warehouse receipt replacement contract, and uses a warehouse receipt replacement contract. For processing the transaction representing the warehouse receipt replacement application event, the processing result is stored in the blockchain network; the method includes:

The stock client client submits a transaction for invoking the warehouse receipt replacement contract to the blockchain network, and the transaction initiated by the stock client client specifies the business input information required for invoking the warehouse receipt replacement contract: target Warehouse receipt identification, replacement warehouse receipt identification;

The blockchain network executes the warehouse receipt replacement contract, matches the warehouse receipt information identified by the target warehouse receipt of the stockist, and uses the right to replace the warehouse receipt to exchange at least part of the right to the matched target warehouse receipt. .
The method of claim 1, wherein the warehouse receipt replacement contract is further used to process a transaction representing a warehouse receipt transfer application event;

The processing represents the transaction of the warehouse receipt transfer application event, including:

Transfer the right of the target warehouse receipt of the inventory party to the resource party; wherein the resource party transfers the right of the resource matching the value of the target warehouse receipt to the inventory party.
The method of claim 2, the blockchain network further comprising a resource-side client;

In the process of executing the warehouse receipt replacement contract, the blockchain network further includes:

After monitoring the warehouse receipt replacement application event, the resource client obtains the target warehouse receipt identifier and the replacement warehouse receipt identifier from the blockchain network, and provides them to the resource party for reviewing all Whether the value of the stated target warehouse receipt and the replacement warehouse receipt match;

In response to the operation of the resource side, the client side of the resource side submits to the blockchain network a transaction that invokes the warehouse receipt replacement contract, and the transaction initiated by the client side of the resource side specifies the first resource side of the resource side. Audit results;

Correspondingly, the blockchain network replaces at least part of the right of the matched target warehouse receipt with the right to replace the warehouse receipt based on the first audit result of the resource party.
The method of claim 3, transferring the right of the target warehouse order of the inventory party to the resource party, comprising:

Release the association relationship between the inventory party and the target warehouse receipt, and establish an association relationship between the resource party and the target warehouse receipt;

The right to exchange at least part of the matched target warehouse receipt with the right to replace the warehouse receipt includes:

Release the association relationship between the resource party and the target warehouse receipt, release the association relationship between the inventory party and the replacement warehouse receipt, and establish an association relationship between the resource party and the replacement warehouse receipt;

In the case of exchanging the right to all the matched target warehouse receipts, establish an association relationship between the stockist and the target warehouse receipt;

In the case of the right to exchange part of the matched target warehouse receipt, split the target warehouse receipt into the exchanged partial warehouse receipt and the non-exchanged partial warehouse receipt, and establish the inventory party and the exchanged part The associated relationship of the warehouse receipt, establishes the associated relationship between the resource party and the unexchanged part of the warehouse receipt.
The method of claim 3, wherein the warehouse receipt processing system further comprises a warehousing client;

In the process of executing the warehouse receipt replacement contract, the blockchain network further includes:

After monitoring the warehouse receipt replacement application event, the warehouse client client obtains the target warehouse receipt identifier and the replacement warehouse receipt identifier from the blockchain network, and provides them to the warehouse receipt for review; The review by the warehousing party includes at least one of the following: reviewing whether the value of the target warehouse receipt matches the replacement warehouse receipt; reviewing whether the replacement warehouse receipt is genuine; reviewing whether the transfer of the storage of the physical goods corresponding to the replacement warehouse receipt is permitted. Location;

In response to the operation of the warehouse, the client of the warehouse submits to the blockchain network a transaction that invokes the warehouse receipt replacement contract, and the transaction initiated by the client of the resource specifies the second of the warehouse. Audit results;

Correspondingly, based on the first audit result of the resource party and the second audit result of the warehouse party, the blockchain network uses the right to replace the warehouse receipt to replace at least part of the matched target warehouse receipt. right.
The method according to claim 5, wherein the resource side client provides the target warehouse receipt identifier and the replacement warehouse receipt identifier to the resource side, comprising:

The resource side client provides the target warehouse receipt identifier and the replacement warehouse receipt identifier to the resource side when it is determined that the warehousing side's second audit result representation is passed.
The method of claim 1, further comprising:

The blockchain network places the target warehouse receipt in a frozen state when it matches the warehouse receipt information identified by the stockist's target warehouse receipt; wherein, in the case where the target warehouse receipt is placed in a frozen state Then, the blockchain network refuses to call the warehouse receipt replacement contract for other transactions of the target warehouse receipt, and the other transactions are transactions unrelated to the warehouse receipt replacement application event.
The method of claim 7, further comprising:

The blockchain network releases the frozen state of the target warehouse receipt when it is determined that the replacement is successful or the replacement fails.
The method of claim 2, further comprising:

If the blockchain network determines that the resource party's right to the target warehouse receipt has expired, it refuses to use the right to replace the warehouse receipt to exchange at least part of the right to the matched target warehouse receipt.
The method of claim 2, wherein the warehouse receipt processing system further comprises a commodity price monitoring client; the method further comprises:

Whenever the conditions for the inventory certificate of the physical goods corresponding to the target warehouse receipt are met, the commodity price monitoring client submits to the blockchain network a transaction that invokes the warehouse receipt replacement contract; the commodity price inventory The business input information required when calling the warehouse receipt replacement contract is specified in the transaction initiated by the warrant transaction: the current unit price of the physical goods corresponding to the target warehouse receipt;

The blockchain network executes the warehouse receipt replacement contract, compares the current unit price and the historical unit price, and obtains a comparison result; the historical unit price is, when the warehouse receipt transfer application event occurs, the target warehouse receipt corresponds to. the unit price of the physical goods;

If the client of the stocker detects from the blockchain network that the comparison result satisfies the preset condition, it asks the stocker whether to trigger a warehouse receipt replacement application event.
The method of claim 1,

The right to the target warehouse receipt includes: the right to possess the target warehouse receipt;

The right to replace the warehouse receipt includes: the right to possess the replacement warehouse receipt.
A warehouse receipt processing system, comprising a blockchain network and a stock client client; the blockchain network deploys a warehouse receipt replacement contract for processing transactions representing an application event for warehouse receipt replacement, and the processing results are stored in the warehouse receipt replacement contract. in the blockchain network described above;

The inventory client is used for the blockchain network to submit a transaction for invoking the warehouse receipt replacement contract, and the transaction initiated by the inventory client specifies the business required for invoking the warehouse receipt replacement contract Input information: target warehouse receipt ID, replacement warehouse receipt ID;

The blockchain network is used to execute the warehouse receipt replacement contract, match the warehouse receipt information identified by the inventory party's target warehouse receipt, and use the right to replace the warehouse receipt to exchange at least part of the matched target warehouse single right.
The system of claim 12, wherein the warehouse receipt replacement contract is further used to process transactions representing a warehouse receipt transfer application event;

The blockchain network is specifically used to transfer the right of the target warehouse receipt of the inventory party to the resource party; wherein, the resource party transfers the right of the resource matching the value of the target warehouse receipt to the inventory party square.
The system of claim 13, further comprising a resource-side client;

The resource-side client is further configured to obtain the target warehouse receipt identifier and the replacement warehouse receipt identifier from the blockchain network after monitoring the warehouse receipt replacement application event, and provide them to the resource party to review whether the target warehouse receipt and the replacement warehouse receipt match in value;

In response to the operation of the resource party, submit a transaction calling the warehouse receipt replacement contract to the blockchain network, and the first audit result of the resource party is specified in the transaction initiated by the resource party client;

The blockchain network is further configured to replace at least part of the right of the matched target warehouse receipt with the right to replace the warehouse receipt based on the first review result of the resource party.
The system of claim 14,

The blockchain network is specifically used to release the association relationship between the inventory party and the target warehouse receipt, and establish an association relationship between the resource party and the target warehouse receipt;

The blockchain network is specifically used to release the association relationship between the resource party and the target warehouse receipt, release the association relationship between the inventory party and the replacement warehouse receipt, and establish the resource party and the replacement warehouse. single association;

In the case of exchanging the right to all the matched target warehouse receipts, establish an association relationship between the stockist and the target warehouse receipt;

In the case of the right to exchange part of the matched target warehouse receipt, split the target warehouse receipt into the exchanged partial warehouse receipt and the non-exchanged partial warehouse receipt, and establish the inventory party and the exchanged part The associated relationship of the warehouse receipt, establishes the associated relationship between the resource party and the unexchanged part of the warehouse receipt.
The system of claim 14, the warehouse receipt processing system further comprising a warehouse client;

The warehousing side client is used to obtain the target warehouse receipt identifier and the replacement warehouse receipt identifier from the blockchain network after monitoring the warehouse receipt replacement application event, and provide them to the warehousing side Review; the review by the warehousing party includes at least one of the following: reviewing whether the value of the target warehouse receipt matches the replacement warehouse receipt; reviewing whether the replacement warehouse receipt is genuine; reviewing whether the entity corresponding to the replacement warehouse receipt is allowed to be transferred the storage location of the goods;

The warehousing client is further configured to submit a transaction calling the warehouse receipt replacement contract to the blockchain network in response to the warehousing operation, and the warehousing is specified in the transaction initiated by the resource client. Party's second audit result;

The blockchain network is further configured to use the right to replace the warehouse receipt to replace at least part of the matched target warehouse receipt based on the first audit result of the resource party and the second audit result of the warehouse party s right.
The system of claim 16,

The resource side client is specifically configured to provide the resource side with the identifier of the target warehouse receipt and the identifier of the replacement warehouse receipt when it is determined that the second audit result of the warehouse side is passed.
The system of claim 12,

The blockchain network is further configured to place the target warehouse receipt in a frozen state under the condition that the warehouse receipt information identified by the target warehouse receipt of the stockist is matched; In the frozen state, the blockchain network refuses to call the warehouse receipt replacement contract for other transactions of the target warehouse receipt, and the other transactions are transactions unrelated to the warehouse receipt replacement application event.
The system of claim 18,

The blockchain network is further configured to release the frozen state of the target warehouse receipt when it is determined that the replacement is successful or the replacement fails.
The system of claim 13,

The blockchain network is further configured to refuse to use the right to replace the warehouse receipt to exchange at least part of the matched target warehouse when it is determined that the resource party's right to the target warehouse receipt expires. single right.
The system of claim 13, wherein the warehouse receipt processing system further comprises: a commodity price monitoring client;

The commodity price monitoring client is configured to submit a transaction for invoking the warehouse receipt replacement contract to the blockchain network when the commodity price certificate condition of the physical commodity corresponding to the target warehouse receipt is satisfied; The business input information required when invoking the warehouse receipt replacement contract is specified in the transaction initiated by the price deposit certificate transaction: the current unit price of the physical goods corresponding to the target warehouse receipt;

The blockchain network is used to execute the warehouse receipt replacement contract, compare the current unit price with the historical unit price, and obtain a comparison result; the historical unit price is, when the warehouse receipt transfer application event occurs, the target warehouse The unit price of the physical goods corresponding to the order;

The stocker client is configured to ask the stocker whether to trigger a warehouse receipt replacement application event after monitoring that the comparison result satisfies a preset condition.
According to the system according to claim 12, the right of the target warehouse receipt includes: the possession right of the target warehouse receipt; the right of the replacement warehouse receipt includes: the possession right of the replacement warehouse receipt.
A computer device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein, when the processor executes the program, the storage method according to any one of claims 1 to 11 is implemented. The method executed by the client, or resource-side client.