CN112837084A - Commodity transaction method and device based on block chain network and block chain network node - Google Patents
Commodity transaction method and device based on block chain network and block chain network node Download PDFInfo
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Abstract
The invention provides a commodity transaction method and device based on a block chain network and a block chain network node. According to the technical scheme provided by the invention, the merchant and the platform issue the coupons through fund mortgage, and when the merchant and the platform settle accounts separately, the fund mortgage amount of the coupons issued by the merchant and the platform is subtracted, so that the preferential amount and the separate of the merchant and the platform can be clearly calculated under the conditions of agreement such as no change of commodity contract, proportion and the like, the issuing and the use of the coupons are realized, and namely the commodity discount is realized. Because the coupon is issued by mortgage, the usability and authenticity of the coupon can be ensured according to the characteristics of the block chain, and the mortgage is a front mortgage, so that the non-falsification/modification of the use flow, conditions, profit proportion, coupon strength and the like of the whole coupon is determined, and disputes are avoided.
Description
Technical Field
The invention relates to the technical field of block chains, in particular to a commodity transaction method and device based on a block chain network and a block chain network node.
Background
Coupons generally include two modes of platform issuance and merchant issuance. In the block chain, a commodity/SKU (Stock Keeping Unit) is generally brought up in an intelligent contract, and commodity-related information such as the price of the commodity and the commodity share ratio (merchant/platform/third party, etc.) is recorded in the intelligent contract. If discounting is required, SKUs need to be modified or replaced, which is labor intensive and very inflexible. Assuming that the original price of the commodity is 200 yuan, the proportion of the platform to the merchant is 10%, and the promotion price is 150 yuan; if the merchant issues a coupon with 50 yuan, the division of the platform is reduced from 200 × 10%, 20 yuan, to 150 × 10%, 15 yuan; if the platform issues the coupon, such as 50 yuan or 7.5 yuan, the actual payment of the merchant decreases from 200 × 90%, (180 yuan) to 150 × 90%, (135 yuan); the two ways compromise the benefits of the platform and the merchant respectively, and complex negotiation and clause establishment are needed in order not to compromise the benefits of the platform and the merchant.
Disclosure of Invention
In order to overcome the problems in the related art, the invention provides a commodity transaction method and device of a block chain network and a block chain network node, wherein a merchant and a platform issue coupons through fund mortgage, and the fund mortgage amount of the coupons issued by the merchant and the platform respectively is subtracted when the merchant and the platform settle accounts, so that the preferential amount and the division of the merchant and the platform can be clearly calculated under the conditions of no change of contract, division proportion and other conventions of commodities, and commodity discount is realized.
According to a first aspect of the embodiments of the present invention, there is provided a commodity transaction method based on a blockchain network, applied to a blockchain network node, the method including:
receiving a coupon issuing intelligent contract signed by a first node and/or a second node, wherein the coupon issuing intelligent contract records: the amount and the use condition of issued coupons and the amount of the first node and/or second node mortgage funds for issuing the coupons are obtained, wherein the amount of the coupons is equal to the sum of the amount of the first node mortgage funds and the amount of the second node mortgage funds for issuing the coupons;
executing the coupon issuing intelligent contract to transfer ownership of the coupon to a third node;
executing the intelligent contract for commodity sales signed by the first node based on the effective purchase information of the third node to: after the effective purchase information is judged to meet the use condition of the coupon, determining a payment amount, a first collection amount and a second collection amount corresponding to the effective purchase information according to the amount of the coupon, the purchase quantity in the effective purchase information, the commodity price in the intelligent commodity sale contract and the proportion of the first node and the second node, transferring the amount from the third node to the intelligent commodity sale contract account according to the payment amount, transferring the amount from the intelligent commodity sale contract account to the first node according to the first collection amount, and transferring the amount from the intelligent commodity sale contract account to the second node according to the second collection amount;
the payment amount is equal to the difference between the original amount determined by the purchase quantity and the commodity price and the amount of the coupon, the first collection amount is equal to the difference between the original amount and the amount of the first node collateral fund which is determined by the dividing proportion and the amount of the first node collateral fund which issues the coupon, and the second collection amount is equal to the difference between the original amount and the amount of the second node collateral fund which is determined by the dividing proportion and the amount of the second node which issues the coupon.
Optionally, the usage condition of the coupon includes a validity period, and the method further includes:
and after the validity period of the coupon is exceeded, executing the coupon issuing intelligent contract to recover the ownership of the coupon of the third node.
Optionally, the method further comprises:
receiving sales information sent by the first node, and storing the sales information to a block chain network;
receiving purchase information sent by the third node, and verifying the purchase information based on the sales information;
and when the purchase information passes the verification, determining that the purchase information is valid purchase information, and storing the valid purchase information to the block chain network.
Optionally, receiving purchase information sent by the third node, and verifying the purchase information based on the sales information includes:
receiving purchase information sent by the third node, and acquiring purchase quantity and purchase time stamp from the purchase information;
and determining whether the purchase quantity and the purchase time stamp accord with the sales rule in the sales information, wherein when the purchase quantity and the purchase time stamp accord with the sales rule in the sales information, the purchase information is determined to be verified.
According to a second aspect of the embodiments of the present invention, there is provided a commodity transaction apparatus based on a blockchain network, which is applied to a blockchain network node, the apparatus including:
the intelligent contract receiving module for issuing the coupons is used for receiving the intelligent contract issued by the coupons signed by the first node and/or the second node, and the intelligent contract issued by the coupons records: the amount and the use condition of issued coupons and the amount of the first node and/or second node mortgage funds for issuing the coupons are obtained, wherein the amount of the coupons is equal to the sum of the amount of the first node mortgage funds and the amount of the second node mortgage funds for issuing the coupons;
the coupon issuing module is used for executing the coupon issuing intelligent contract to transfer the ownership of the coupon to a third node;
the intelligent contract execution module for commodity sales is used for executing the intelligent contract for commodity sales signed by the first node based on the effective purchase information of the third node so as to: after the effective purchase information is judged to meet the use condition of the coupon, determining a payment amount, a first collection amount and a second collection amount corresponding to the effective purchase information according to the amount of the coupon, the purchase quantity in the effective purchase information, the commodity price in the intelligent commodity sale contract and the proportion of the first node and the second node, transferring the amount from the third node to the intelligent commodity sale contract account according to the payment amount, transferring the amount from the intelligent commodity sale contract account to the first node according to the first collection amount, and transferring the amount from the intelligent commodity sale contract account to the second node according to the second collection amount;
the payment amount is equal to the difference between the original amount determined by the purchase quantity and the commodity price and the amount of the coupon, the first collection amount is equal to the difference between the original amount and the amount of the first node collateral fund which is determined by the dividing proportion and the amount of the first node collateral fund which issues the coupon, and the second collection amount is equal to the difference between the original amount and the amount of the second node collateral fund which is determined by the dividing proportion and the amount of the second node which issues the coupon.
Optionally, the usage condition of the coupon includes a validity period, and the apparatus further includes:
and the coupon recovery module is used for executing the coupon issuing intelligent contract to recover the ownership of the coupon of the third node after the valid period of the coupon is exceeded.
Optionally, the apparatus further comprises:
the receiving module is used for receiving the sales information sent by the first node and storing the sales information to the block chain network;
the verification module is used for receiving the purchase information sent by the third node and verifying the purchase information based on the sales information;
and the storage module is used for determining that the purchase information is valid purchase information when the purchase information passes verification and storing the valid purchase information to the block chain network.
Optionally, the verification module is specifically configured to:
receiving purchase information sent by the third node, and acquiring purchase quantity and purchase time stamp from the purchase information;
and determining whether the purchase quantity and the purchase time stamp accord with the sales rule in the sales information, wherein when the purchase quantity and the purchase time stamp accord with the sales rule in the sales information, the purchase information is determined to be verified.
According to a third aspect of embodiments of the present invention, there is provided a computer program product comprising a computer program executable by a programmable apparatus, the computer program having code portions for performing the method of any one of the above first aspects when executed by the programmable apparatus.
According to a fourth aspect of embodiments of the present invention, there is provided a blockchain network node, comprising:
a memory for storing executable instructions;
a processor configured to implement the method of any of the first aspect above when executing executable instructions stored in the memory.
According to a fifth aspect of embodiments of the present invention, there is provided a storage medium storing executable instructions for causing a processor to implement the method according to any one of the first aspect.
The technical scheme provided by the embodiment of the invention can have the following beneficial effects:
in the embodiment of the invention, the merchant and the platform issue the coupons through the fund mortgage, and when the merchant and the platform settle accounts separately, the fund mortgage amount of the coupons issued by the merchant and the platform is subtracted, so that the preferential amount and the partition of the merchant and the platform can be clearly calculated under the conditions of agreement such as no change of a commodity contract, proportion and the like, the issuing and the use of the coupons are realized, and the discount of commodities is realized. Because the coupon is issued by mortgage, the usability and authenticity of the coupon can be ensured according to the characteristics of the block chain, and the mortgage is a front mortgage, so that the non-falsification/modification of the use flow, conditions, profit proportion, coupon strength and the like of the whole coupon is determined, and disputes are avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is an exemplary block diagram of a blockchain network node according to an embodiment of the present invention;
fig. 2 is a flowchart of a commodity transaction method based on a blockchain network according to an embodiment of the present invention;
FIG. 3 is a simplified flow diagram of an embodiment of the method of FIG. 2;
fig. 4 is a block diagram of a commodity transaction apparatus based on a blockchain network according to an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing embodiments of the invention only and is not intended to be limiting of the invention.
Before further detailed description of the embodiments of the present invention, terms and expressions mentioned in the embodiments of the present invention are explained, and the terms and expressions mentioned in the embodiments of the present invention are applied to the following explanations.
The block chain technology is a distributed, centerless and trusting network data consensus storage technology. Based on a unique Block (Block) generation mechanism such as a (PoW, Proof of Work or PoS, Proof of stamp) and a P2P (Point to Point) network communication mechanism, the synchronization problem of distributed computation, namely the problem of 'Byzantine general', is realized, and the synchronization problem is widely applied to digital goods ratio such as Bitcoin (Bitcoin) and used as an account book (Public Ledger), so that a series of problems of anonymity, security, non-repudiation, traceability, double blossom (double blossom) and the like of digital money are successfully solved.
In general, in the forming process of Blockchain, each node participating in computation shares the same authority (decentering, without trust), which includes core functions such as transfer (Transaction), computation block (mining, etc.). Wherein, Transaction represents the data to be written into the Block, and the Block (Block) adopts a specific generation mechanism to ensure that the longest Chain (the Chain composed of the blocks, namely, Chain, which naturally contains the most front and back related blocks) is an effective Chain.
The data of a Transaction usually includes certain attributes or currency, a digital signature of its owner (i.e., the owner's private key encrypts it, which is usually referred to as a digital signature), and an address of the recipient (usually a hash value of the recipient's public key), and after the Transaction is written into a Block (Block), the owner's digital signature is verified, that is, the ownership is transferred to the recipient.
In a general sense, the smart contract itself defines two roles, the publisher and the owner, and these two roles are typically accounts on the blockchain. The smart contract itself is also an account on the blockchain, which can be triggered and perform operations, and may have more complex logic processing capabilities inside.
The operation of triggering the smart contract is defined as Call (Call), which is one of Transactions (TX) on the blockchain; accounts on any blockchain may make calls to the smart contract, but the smart contract may be programmed to react only to specific calls; other intelligent contracts may also be invoked by the intelligent contract.
As shown in fig. 1, an exemplary structure of a node of a blockchain network provided in the embodiment of the present invention is provided, and it is understood that the hardware structure of any type of node in the blockchain network may be implemented according to the hardware structure described below.
As shown in fig. 1, a block chain network node according to an embodiment of the present invention includes: at least one processor 1, a memory 3 and at least one network interface 2. The various components in the node are coupled together by a bus system 4. It will be appreciated that the bus system 4 is used to enable connection communication between these components. The bus system 4 comprises, in addition to a data bus, a power bus, a control bus and a status signal bus. For the sake of clarity, however, the various buses are labeled as bus system 4 in fig. 1.
The Processor 1 may be an integrated circuit chip having Signal processing capabilities, such as a general purpose Processor, a Digital Signal Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like, wherein the general purpose Processor may be a microprocessor or any conventional Processor, or the like.
The memory 3 may be removable, non-removable or a combination thereof. Exemplary hardware devices include solid state memory, hard disk drives, optical disk drives, and the like. The memory 3 may optionally include one or more memory devices physically located remote from the processor 1.
The memory 3 includes either volatile memory or nonvolatile memory, and may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read Only Memory 3 (ROM), and the volatile Memory may be a Random Access Memory (RAM). The memory described in the embodiments of the present invention is intended to comprise any suitable type of memory 3.
In some embodiments, the memory 3 is capable of storing data to support various operations, examples of which include programs, modules, and data structures, or subsets or supersets thereof, as exemplified below.
An operating system 100 including system programs for processing various basic system services and performing hardware-related tasks, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks;
a network communication module 30 for reaching other computing devices via one or more (wired or wireless) network interfaces 2, an exemplary network interface 2 comprising: bluetooth, wireless compatibility authentication (WiFi), and Universal Serial Bus (USB), etc.;
in some embodiments, the commodity transaction device 10 based on the blockchain network provided by the embodiment of the present invention may be implemented in a software manner, and fig. 1 shows the commodity transaction device 10 based on the blockchain network stored in the memory 3, which may be software in the form of programs and plug-ins, and the like, and includes the following software modules: the intelligent contract receiving module 11 for issuing coupons, the intelligent contract issuing module 12 for selling goods and the intelligent contract executing module 13 for selling goods are logical, so that they can be arbitrarily combined or further separated according to the implemented functions. The functions of the respective modules will be explained below.
Referring to fig. 2, fig. 2 is a flowchart of a commodity transaction method based on a blockchain network according to an embodiment of the present invention. As shown in fig. 2, the method comprises the steps of:
step S11, receiving a coupon issuing intelligent contract signed by the first node and/or the second node, wherein the coupon issuing intelligent contract records: the method comprises the steps of issuing the coupon, issuing the coupon according to the sum of the amount of the issued coupon and the use condition, and issuing the coupon, wherein the amount of the issued coupon is equal to the sum of the amount of the first node mortgage fund and the amount of the second node mortgage fund.
The first node is a merchant node, and further may be a mobile phone, a desktop computer, a laptop computer, a digital broadcast terminal, an information transceiver device, a game console, a tablet device, a personal digital assistant, and the like. The first node is provided with a merchant-version e-commerce App, and merchant users can issue commodities sold by themselves through the merchant-version e-commerce App and also issue coupons for certain commodities according to sales requirements of themselves. The first node also runs a client accessing the blockchain network.
The second node is a platform node, and further may be a mobile phone, a desktop computer, a notebook computer, a digital broadcast terminal, an information transceiver device, a game console, a tablet device, a personal digital assistant, or the like. The E-commerce background system is installed in the second node, and a platform user can manage sales information issued by a merchant user through the E-commerce background system and issue coupons for a certain commodity according to the sales demand of the platform user. The second node also runs a client for accessing the blockchain network.
In step S11, the usage conditions of the issued coupon may include the range of goods for which the coupon is intended, a decreasing policy (e.g., 200 is full), a usage period, and the like. And issuing the coupon, wherein the amount of the first node mortgage funds is greater than or equal to 0. And issuing the coupon, wherein the amount of the second node mortgage funds is greater than or equal to 0. And when the sum of the first node mortgage fund for issuing the coupon is equal to 0 and the sum of the second node mortgage fund for issuing the coupon is greater than 0, the coupon is the coupon issued by the platform. And when the sum of the first node mortgage fund for issuing the coupon is greater than 0 and the sum of the second node mortgage fund for issuing the coupon is equal to 0, the coupon is the coupon issued by the merchant. And when the sum of the first node mortgage fund for issuing the coupon is greater than 0 and the sum of the second node mortgage fund for issuing the coupon is greater than 0, the coupon is the coupon issued by both the merchant and the platform. The coupon is NFT (non-specimen-token).
Step S12, executing the coupon issuance intelligence contract transfers ownership of the coupon to a third node.
Step S13, based on the valid purchase information of the third node, executing the intelligent contract for commodity sales signed by the first node to: after the effective purchase information is judged to meet the use condition of the coupon, determining a payment amount, a first collection amount and a second collection amount corresponding to the effective purchase information according to the amount of the coupon, the purchase quantity in the effective purchase information, the commodity price in the intelligent commodity sale contract and the proportion of the first node and the second node, transferring the amount from the third node to the intelligent commodity sale contract account according to the payment amount, transferring the amount from the intelligent commodity sale contract account to the first node according to the first collection amount, and transferring the amount from the intelligent commodity sale contract account to the second node according to the second collection amount.
The payment amount is equal to the difference between the original amount determined by the purchase quantity and the commodity price and the amount of the coupon, the first collection amount is equal to the difference between the original amount and the amount of the first node collateral fund which is determined by the dividing proportion and the amount of the first node collateral fund which issues the coupon, and the second collection amount is equal to the difference between the original amount and the amount of the second node collateral fund which is determined by the dividing proportion and the amount of the second node which issues the coupon.
The third node is a buyer node, and further may be a mobile phone, a desktop computer, a notebook computer, a digital broadcast terminal, an information transceiver device, a game console, a tablet device, a personal digital assistant, and the like. The third node is provided with a buyer edition e-commerce App, and a buyer user can search and browse commodities which the buyer user wants to purchase through the buyer edition e-commerce App and place an order for purchase after selecting the commodities. The third node also runs a client for accessing the blockchain network.
The steps S11, S12, and S1 are performed as shown in fig. 3. For better explanation of step S11, step S12, and step S13, the following example is made:
for example, if a merchant needs to issue a 50 yuan coupon for a certain product, the merchant needs to transfer 50 yuan to the coupon issuing intelligent contract, and set the usage conditions of the coupon, such as the expiration date and the range of the product to be issued. After the setting is completed, the intelligent contract for issuing the coupon generates an NFT with the value of 50 yuan. Ownership of this NFT is transferred to the potential customer through the merchant. When a buyer uses the NFT coupon when purchasing goods within the usage range of the coupon, the goods sales intelligence contract obtains the ownership of the NFT and obtains the 50 yuan contained in the NFT. Assuming that the purchase amount of the goods is 1 and the price of the goods is 200 yuan, after deducting the amount of the coupon, the buyer only needs to pay 150 yuan, namely the payment amount is 1 × 200-50 ═ 150 yuan. Meanwhile, in the intelligent contract for commodity sales, the actually received payment is 200 yuan (150 yuan user payment and 50 yuan coupon payment). This 200 dollar may be divided between merchants and platforms in the original division ratio. Assuming that the division ratio between the platform and the merchant is 10%, the platform actually obtains 20 yuan, that is, the second payment amount is 200 × 10% -0 — 20 yuan; the merchant actually obtains 130 dollars, i.e., the first amount from receipt is 200 x (1-10%) -50 x 130 dollars.
For another example, if the platform needs to issue a 10-dollar coupon for a certain product, the platform needs to transfer the smart contract for issuing coupons to 10 dollars, and set the usage conditions of the coupon, such as the expiration date and the range of the product to be issued. After the setting is completed, the intelligent contract for issuing the coupon generates an NFT with the value of 10 yuan. Ownership of this NFT is transferred to the potential buyer through the platform. When a buyer uses the NFT coupon when purchasing goods within the use range of the coupon, the goods sales intelligence contract obtains the ownership of the NFT and obtains the 10 yuan contained in the NFT. Assuming that the purchase quantity of the goods is 1 and the price of the goods is 200 yuan, the buyer only needs to pay 190 yuan after deducting the amount of the coupon, namely, the payment amount is 1 × 200-10 ═ 190 yuan. Meanwhile, in the intelligent contract for commodity sales, the actually received payment is 200 yuan (190 yuan user payment and 10 yuan coupon payment). This 200 dollar may be divided between merchants and platforms in the original division ratio. Assuming that the division ratio between the platform and the merchant is 10%, the platform actually obtains 10 yuan, that is, the second payment amount is 200 × 10% -10 ═ 10 yuan; the merchant actually obtains 180 dollars, i.e., the first amount collected is 200 x (1-10%) -0 x 180 dollars.
For another example, if a merchant and a platform issue a 50-dollar coupon together, and the merchant pays 40 dollars and the platform pays 10 dollars for issuance, the merchant needs to transfer 40 dollars to the intelligent contract for issuance of the coupon, and the platform needs to transfer 10 dollars to the intelligent contract for issuance of the coupon. Setting the use conditions of the coupons, such as the expiration date, the range of the targeted commodities and the like. After the setting is completed, the intelligent contract for issuing the coupon generates an NFT with the value of 50 yuan. Ownership of this NFT is transferred to the potential buyer. When a buyer uses the NFT coupon when purchasing goods within the usage range of the coupon, the goods sales intelligence contract obtains the ownership of the NFT and obtains the 50 yuan contained in the NFT. Assuming that the purchase amount of the goods is 1 and the price of the goods is 200 yuan, after deducting the amount of the coupon, the buyer only needs to pay 150 yuan, namely the payment amount is 1 × 200-50 ═ 150 yuan. Meanwhile, in the intelligent contract for commodity sales, the actually received payment is 200 yuan (150 yuan user payment and 50 yuan coupon payment). This 200 dollar may be divided between merchants and platforms in the original division ratio. Assuming that the division ratio between the platform and the merchant is 10%, the platform actually obtains 10 yuan, that is, the second payment amount is 200 × 10% -10 ═ 10 yuan; the merchant actually obtains 140 dollars, i.e., the first amount collected is 200 x (1-10%) -40 x 140 dollars.
Through the technical scheme, the merchant and the platform issue the coupons through fund mortgage, and the fund mortgage amount of the coupons issued by the merchant and the platform respectively is subtracted when the merchant and the platform settle accounts, so that the preferential amount and the discount amount of the merchant and the platform can be clearly calculated under the conditions of agreement such as no change of a commodity contract, proportion and the like, the issuing and the use of the coupons are realized, and the discount of commodities is realized. Because the coupon is issued by mortgage, the usability and authenticity of the coupon can be ensured according to the characteristics of the block chain, and the mortgage is a front mortgage, so that the non-falsification/modification of the use flow, conditions, profit proportion, coupon strength and the like of the whole coupon is determined, and disputes are avoided. And the coupon can be NFT, so that the ownership transfer cost of the coupon is simplified and the efficiency is improved according to the characteristics of the block chain NFT.
Optionally, the usage condition of the coupon includes a validity period, and the method further includes:
and after the validity period of the coupon is exceeded, executing the coupon issuing intelligent contract to recover the ownership of the coupon of the third node.
Through the technical scheme, for the expired unused coupon, the rest amount is recovered and returned to the merchant and/or the platform through the intelligent contract issued by the coupon, so that the fund security of the merchant and/or the platform is ensured.
Optionally, the method further comprises:
and receiving the sales information sent by the first node, and storing the sales information to a blockchain network.
The sales information may include, among other things, offer policies, purchasable amounts, purchasable start and stop times, sales links, etc. The first node is also operated with a client end accessed to the blockchain network, and the client end is used for the merchant user to submit data or inquire data to the blockchain network. For example, the first node may generate a transaction for the corresponding storage operation based on the request to publish the sales information and submit the transaction to the blockchain network. Wherein at least the sales information to be released is included in the transaction of the storing operation. After receiving the transaction of the stored sales information uploaded by the first node, the blockchain network performs identity authentication on the first node, determines whether the first node has a transaction right, and stores the sales information into the blockchain network when the identity authentication of the first node passes and the first node determines that the first node has the transaction right.
And receiving purchase information sent by the third node, and verifying the purchase information based on the sales information.
After the sales information issued by the first node is stored in the blockchain network, each node in the blockchain network stores the sales information, so that a buyer user can check the sales information through a third node connected to the blockchain network and enter a commodity purchase page for purchase through a sales link in the sales information, the buyer user can select the purchase quantity through the commodity purchase page displayed in the third node, can also input or select a shipping address after determining the purchase quantity, and can submit the purchase information to the blockchain network after confirming the purchase quantity and the shipping address. After receiving the transaction of the stored purchase information uploaded by the second node, the blockchain network authenticates the identity of the third node and determines whether the third node has a transaction right, and when the identity of the third node passes the authentication and determines that the third node has the transaction right, the blockchain network verifies the purchase information based on the sales information issued by the merchant. The verification process is mainly to determine whether the purchase amount in the purchase information is within the limited purchase amount in the sales information, whether the shipping address is within the sales area in the sales information, whether the purchase time stamp is after the sales start time, and the like. Therefore, the receiving the purchase information transmitted by the third node and verifying the purchase information based on the sales information may include: receiving purchase information sent by the third node, and acquiring purchase quantity and purchase time stamp from the purchase information; and determining whether the purchase quantity and the purchase time stamp accord with the sales rule in the sales information, wherein when the purchase quantity and the purchase time stamp accord with the sales rule in the sales information, the purchase information is determined to be verified.
And when the purchase information passes the verification, determining that the purchase information is valid purchase information, and storing the valid purchase information to the block chain network.
Here, when the purchase information conforms to various restrictions in the sales information, for example, the purchase amount is within the restricted purchase amount in the sales information, the shipping address is within the sales area in the sales information, and the purchase time stamp is after the sales start time, the purchase information is considered to be verified, and the purchase information is stored in the blockchain network at this time.
Through the technical scheme, after the merchant makes the sales information, the sales information is uploaded to the blockchain network for storage, and when the buyer places an order for purchase, the purchase information is also uploaded to the blockchain network for storage, so that the decentralized storage mode of the blockchain network with the utilization rate can prevent the purchase information and the sales information from being falsified, thereby carrying out public and transparent marketing activities and ensuring the consumption fairness.
Referring to fig. 4, based on the same inventive concept, an embodiment of the present invention further provides a commodity transaction apparatus 10 based on a blockchain network, the apparatus including:
a coupon issuing intelligent contract receiving module 11, configured to receive a coupon issuing intelligent contract signed by a first node and/or a second node, where the coupon issuing intelligent contract records: the method comprises the steps of issuing the coupon, issuing the coupon according to the sum of the amount of the issued coupon and the use condition, and issuing the coupon, wherein the amount of the issued coupon is equal to the sum of the amount of the first node mortgage fund and the amount of the second node mortgage fund.
And the coupon issuing module 12 is used for executing the coupon issuing intelligent contract to transfer the ownership of the coupon to a third node.
A commodity sales intelligent contract execution module 13, configured to execute the commodity sales intelligent contract signed by the first node based on the valid purchase information of the third node, so as to: after the effective purchase information is judged to meet the use condition of the coupon, determining a payment amount, a first collection amount and a second collection amount corresponding to the effective purchase information according to the amount of the coupon, the purchase quantity in the effective purchase information, the commodity price in the intelligent commodity sale contract and the proportion of the first node and the second node, transferring the amount from the third node to the intelligent commodity sale contract account according to the payment amount, transferring the amount from the intelligent commodity sale contract account to the first node according to the first collection amount, and transferring the amount from the intelligent commodity sale contract account to the second node according to the second collection amount.
The payment amount is equal to the difference between the original amount determined by the purchase quantity and the commodity price and the amount of the coupon, the first collection amount is equal to the difference between the original amount and the amount of the first node collateral fund which is determined by the dividing proportion and the amount of the first node collateral fund which issues the coupon, and the second collection amount is equal to the difference between the original amount and the amount of the second node collateral fund which is determined by the dividing proportion and the amount of the second node which issues the coupon.
Through the technical scheme, the merchant and the platform issue the coupons through fund mortgage, and the fund mortgage amount of the coupons issued by the merchant and the platform respectively is subtracted when the merchant and the platform settle accounts, so that the preferential amount and the discount amount of the merchant and the platform can be clearly calculated under the conditions of agreement such as no change of a commodity contract, proportion and the like, the issuing and the use of the coupons are realized, and the discount of commodities is realized. Because the coupon is issued by mortgage, the usability and authenticity of the coupon can be ensured according to the characteristics of the block chain, and the mortgage is a front mortgage, so that the non-falsification/modification of the use flow, conditions, profit proportion, coupon strength and the like of the whole coupon is determined, and disputes are avoided. And the coupon can be NFT, so that the ownership transfer cost of the coupon is simplified and the efficiency is improved according to the characteristics of the block chain NFT.
Optionally, the usage condition of the coupon includes a validity period, and the apparatus further includes:
and the coupon recovery module is used for executing the coupon issuing intelligent contract to recover the ownership of the coupon of the third node after the valid period of the coupon is exceeded.
Through the technical scheme, for the expired unused coupon, the rest amount is recovered and returned to the merchant and/or the platform through the intelligent contract issued by the coupon, so that the fund security of the merchant and/or the platform is ensured.
Optionally, the apparatus further comprises:
and the receiving module is used for receiving the sales information sent by the first node and storing the sales information to the block chain network.
And the verification module is used for receiving the purchase information sent by the third node and verifying the purchase information based on the sales information.
And the storage module is used for determining that the purchase information is valid purchase information when the purchase information passes verification and storing the valid purchase information to the block chain network.
Through the technical scheme, after the merchant makes the sales information, the sales information is uploaded to the blockchain network for storage, and when the buyer places an order for purchase, the purchase information is also uploaded to the blockchain network for storage, so that the decentralized storage mode of the blockchain network with the utilization rate can prevent the purchase information and the sales information from being falsified, thereby carrying out public and transparent marketing activities and ensuring the consumption fairness.
Optionally, the verification module is specifically configured to: receiving purchase information sent by the third node, and acquiring purchase quantity and purchase time stamp from the purchase information; and determining whether the purchase quantity and the purchase time stamp accord with the sales rule in the sales information, wherein when the purchase quantity and the purchase time stamp accord with the sales rule in the sales information, the purchase information is determined to be verified.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
In another exemplary embodiment, a computer program product is also provided, which comprises a computer program executable by a programmable apparatus, the computer program having code portions for performing the above-mentioned article transaction method based on a blockchain network when the computer program is executed by the programmable apparatus.
In another exemplary embodiment, there is also provided a block chain network node, comprising: a memory for storing executable instructions; a processor configured to implement the method of any of the first aspect above when executing executable instructions stored in the memory.
In another exemplary embodiment, a storage medium is further provided, which stores executable instructions for causing a processor to implement the method of any one of the above first aspects when executed.
In some embodiments, the storage medium may be FRAM, ROM, PROM, EPROM, EEPROM, flash, magnetic surface memory, optical disk, or CD-RON memory; or may be various devices including one or any combination of the above memories.
In some embodiments, executable instructions may be written in any form of programming language (including compiled or interpreted languages), in the form of programs, software modules, scripts or code, and may be deployed in any form, including as a stand-alone program or as a module, component, subroutine, or other unit suitable for use in a computing environment.
By way of example, executable instructions may correspond, but do not necessarily have to correspond, to files in a file system, and may be stored in a portion of a file that holds other programs or data, such as in one or more scripts in a hypertext Markup Language (H TML) document, in a single file dedicated to the program in question, or in multiple coordinated files (e.g., files that store one or more modules, sub-programs, or portions of code).
By way of example, executable instructions may be deployed to be executed on one computing device or on multiple computing devices at one site or distributed across multiple sites and interconnected by a communication network.
The above embodiments are only used to describe the technical solutions of the present invention in detail, but the above embodiments are only used to help understanding the method and the core idea of the present invention, and should not be construed as limiting the present invention. Those skilled in the art should also appreciate that they can easily conceive of various changes and substitutions within the technical scope of the present disclosure.
Claims (10)
1. A commodity transaction method based on a block chain network is characterized in that the commodity transaction method is applied to a block chain network node, and the method comprises the following steps:
receiving a coupon issuing intelligent contract signed by a first node and/or a second node, wherein the coupon issuing intelligent contract records: the amount and the use condition of issued coupons and the amount of the first node and/or second node mortgage funds for issuing the coupons are obtained, wherein the amount of the coupons is equal to the sum of the amount of the first node mortgage funds and the amount of the second node mortgage funds for issuing the coupons;
executing the coupon issuing intelligent contract to transfer ownership of the coupon to a third node;
executing the intelligent contract for commodity sales signed by the first node based on the effective purchase information of the third node to: after the effective purchase information is judged to meet the use condition of the coupon, determining a payment amount, a first collection amount and a second collection amount corresponding to the effective purchase information according to the amount of the coupon, the purchase quantity in the effective purchase information, the commodity price in the intelligent commodity sale contract and the proportion of the first node and the second node, transferring the amount from the third node to the intelligent commodity sale contract account according to the payment amount, transferring the amount from the intelligent commodity sale contract account to the first node according to the first collection amount, and transferring the amount from the intelligent commodity sale contract account to the second node according to the second collection amount;
the payment amount is equal to the difference between the original amount determined by the purchase quantity and the commodity price and the amount of the coupon, the first collection amount is equal to the difference between the original amount and the amount of the first node collateral fund which is determined by the dividing proportion and the amount of the first node collateral fund which issues the coupon, and the second collection amount is equal to the difference between the original amount and the amount of the second node collateral fund which is determined by the dividing proportion and the amount of the second node which issues the coupon.
2. The method of claim 1, wherein the coupon usage condition comprises an expiration date, the method further comprising:
and after the validity period of the coupon is exceeded, executing the coupon issuing intelligent contract to recover the ownership of the coupon of the third node.
3. The method according to claim 1 or 2, characterized in that the method further comprises:
receiving sales information sent by the first node, and storing the sales information to a block chain network;
receiving purchase information sent by the third node, and verifying the purchase information based on the sales information;
and when the purchase information passes the verification, determining that the purchase information is valid purchase information, and storing the valid purchase information to the block chain network.
4. The method of claim 3, wherein receiving purchase information sent by the third node and verifying the purchase information based on the sales information comprises:
receiving purchase information sent by the third node, and acquiring purchase quantity and purchase time stamp from the purchase information;
and determining whether the purchase quantity and the purchase time stamp accord with the sales rule in the sales information, wherein when the purchase quantity and the purchase time stamp accord with the sales rule in the sales information, the purchase information is determined to be verified.
5. A commodity transaction device based on a block chain network is characterized in that the commodity transaction device is applied to a block chain network node, and the device comprises:
the intelligent contract receiving module for issuing the coupons is used for receiving the intelligent contract issued by the coupons signed by the first node and/or the second node, and the intelligent contract issued by the coupons records: the amount and the use condition of issued coupons and the amount of the first node and/or second node mortgage funds for issuing the coupons are obtained, wherein the amount of the coupons is equal to the sum of the amount of the first node mortgage funds and the amount of the second node mortgage funds for issuing the coupons;
the coupon issuing module is used for executing the coupon issuing intelligent contract to transfer the ownership of the coupon to a third node;
the intelligent contract execution module for commodity sales is used for executing the intelligent contract for commodity sales signed by the first node based on the effective purchase information of the third node so as to: after the effective purchase information is judged to meet the use condition of the coupon, determining a payment amount, a first collection amount and a second collection amount corresponding to the effective purchase information according to the amount of the coupon, the purchase quantity in the effective purchase information, the commodity price in the intelligent commodity sale contract and the proportion of the first node and the second node, transferring the amount from the third node to the intelligent commodity sale contract account according to the payment amount, transferring the amount from the intelligent commodity sale contract account to the first node according to the first collection amount, and transferring the amount from the intelligent commodity sale contract account to the second node according to the second collection amount;
the payment amount is equal to the difference between the original amount determined by the purchase quantity and the commodity price and the amount of the coupon, the first collection amount is equal to the difference between the original amount and the amount of the first node collateral fund which is determined by the dividing proportion and the amount of the first node collateral fund which issues the coupon, and the second collection amount is equal to the difference between the original amount and the amount of the second node collateral fund which is determined by the dividing proportion and the amount of the second node which issues the coupon.
6. The apparatus of claim 5, wherein the coupon usage condition comprises a validity period, the apparatus further comprising:
and the coupon recovery module is used for executing the coupon issuing intelligent contract to recover the ownership of the coupon of the third node after the valid period of the coupon is exceeded.
7. The apparatus of claim 5 or 6, further comprising:
the receiving module is used for receiving the sales information sent by the first node and storing the sales information to the block chain network;
the verification module is used for receiving the purchase information sent by the third node and verifying the purchase information based on the sales information;
and the storage module is used for determining that the purchase information is valid purchase information when the purchase information passes verification and storing the valid purchase information to the block chain network.
8. The apparatus of claim 7, wherein the verification module is specifically configured to:
receiving purchase information sent by the third node, and acquiring purchase quantity and purchase time stamp from the purchase information;
and determining whether the purchase quantity and the purchase time stamp accord with the sales rule in the sales information, wherein when the purchase quantity and the purchase time stamp accord with the sales rule in the sales information, the purchase information is determined to be verified.
9. A blockchain network node, comprising:
a memory for storing executable instructions;
a processor for implementing the method of any one of claims 1 to 4 when executing executable instructions stored in the memory.
10. A storage medium having stored thereon executable instructions for causing a processor to perform the method of any one of claims 1-4 when executed.
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