CN113271346B - Blind box selling platform based on block chain - Google Patents
Blind box selling platform based on block chain Download PDFInfo
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- CN113271346B CN113271346B CN202110485886.3A CN202110485886A CN113271346B CN 113271346 B CN113271346 B CN 113271346B CN 202110485886 A CN202110485886 A CN 202110485886A CN 113271346 B CN113271346 B CN 113271346B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
- H04L67/1087—Peer-to-peer [P2P] networks using cross-functional networking aspects
- H04L67/1089—Hierarchical topologies
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q30/00—Commerce
- G06Q30/06—Buying, selling or leasing transactions
- G06Q30/0601—Electronic shopping [e-shopping]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
- H04L9/0643—Hash functions, e.g. MD5, SHA, HMAC or f9 MAC
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/50—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using hash chains, e.g. blockchains or hash trees
Abstract
The invention belongs to the technical field of block chains, and particularly relates to a block chain-based blind box selling platform. The blind box vending platform of the invention has a four-layer structure: the system comprises an application layer, a contract layer, a consensus layer and a data storage layer; the method comprises the following steps that a merchant encrypts and inputs commodity information of a selling batch, a rare commodity proportion and a corresponding number into an intelligent contract on a block chain, and the intelligent contract carries out random selling; the customer completes the purchase of the blind box by calling the intelligent contract, the corresponding number is obtained after the purchase is successful, the merchant delivers goods according to the customer number, the customer can feed back the result to the chain after obtaining the commodity, after the sale of the batch of commodity is finished, the intelligent contract automatically compares the fed-back ratio with the ratio provided by the merchant, and then the sale results of the batch are packaged into blocks for chain linking. Compared with the existing platform, the invention has more credibility and fairness, all sold commodities can be traced on the block chain, and the supervision of related supervision departments is facilitated.
Description
Technical Field
The invention belongs to the technical field of block chains, and particularly relates to a blind box selling platform.
Background
The current market offers three different modes for blind boxes:
(1) and (5) selling in stores. The selling mode belongs to a traditional selling mode, a customer directly goes to a corresponding store to purchase commodities and exchanges commodities in the store, but due to the fact that the commodities are sold in real objects, a plurality of salesmen can collect benefits to provide internal information for the customer, and the customer can manually bear the commodities or brute force the commodities to guess the situation in the blind box;
(2) and selling by using a vending machine. Although the selling mode solves the problem of putting an end to shop selling, as the vending machine is arranged by the merchant, in extreme cases, a rare article possibly in the vending machine cannot exist;
(3) and (5) selling through official networks. Official sale can solve the problems in the two sale modes, but cannot solve the condition that a merchant cheats.
Therefore, in combination with the above three-point analysis, the current selling model of the blind box has the following problems:
(1) the customer directly contacts with the blind box commodity, so that the winning rate is manually improved, and the blind box is damaged;
(2) the rare blind box commodities are distributed unevenly;
(3) the merchant has the conditions of self-cheating, false publicity and secondary sales.
As the blind box becomes more popular and less probable events are amplified, more negative news about the blind box products is required recently, and a feasible solution is urgently needed to solve the problem of the defects in the blind box mode.
Disclosure of Invention
The invention aims to provide a decentralization, supervision, inquiry and random sale realization blind box sale platform to solve the defect problem of the current blind box mode.
The blind box selling platform provided by the invention is based on a block chain technology, and has four layers of architectures, namely an application layer, a contract layer, a consensus layer and a data storage layer; wherein:
the application layer is responsible for interacting with the customer and the merchant to complete services such as registration, purchase and inquiry of the customer on the platform, and the application layer encrypts the information of the customer and the information of purchased articles cryptographically and transmits the information to the contract layer; when interacting with a merchant, the system is responsible for transmitting the batch of articles sold by the merchant, the serial numbers of all articles and the hash value of the rare article to a contract layer;
the contract layer is responsible for interacting with the customer and the merchant and providing the customer with a service for randomly selling the goods and a service for inquiring the state of the goods; providing services of inputting information of sold commodities, depositing deposit, displaying result information and withdrawing the deposit to a merchant; the contract layer itself also has the ability to send the result transaction to the merchant;
the consensus layer is responsible for the task of transaction information and block consistency in the block chain network; after successful payment, each transaction is flooded and broadcast to all nodes in the network, and after the nodes reach consistency with the state of the transaction, the transaction is confirmed; for the consensus of the block, after the selling batch of goods of any company finishes selling or the selling time is up, the first node generating the result block broadcasts the block to other nodes, and the other nodes determine whether to accept the block according to the consensus rule;
the data storage layer is responsible for the persistence of the data of the blocks, wherein the data structure of the blocks mainly comprises the following information: the hash value of the previous block, the hash value of the block, the merkle root hash values of all transactions of the block, the height of the block, the contract account state at the height, the information of the article batch in the block and the result transaction information of the block; the non-relational database mongoDB is adopted for the underlying database of data persistence.
The invention improves the existing blind box selling mode by utilizing the characteristics of the block chain, does not carry out self-propaganda and self-selling, but relies on an intelligent contract to ensure that the goods cannot be manually intervened during selling, ensures random selling, can carry out historical inquiry on the goods to be sold, prevents a malicious merchant from carrying out secondary selling, and simultaneously, a supervision department can carry out historical inquiry on result transaction in the block, thereby being convenient for supervision.
In the invention, because the intelligent contract is used as a selling program, the completely random selling can be provided, and the selling function is realized by using a program written by a code, wherein the program is written by a supervision department and is deployed in the platform network.
In the invention, all blind box merchants register and join in the network, information such as commodity batch numbers to be sold is input into the intelligent contract, and the intelligent contract is responsible for selling all articles.
The invention supports the functions of inquiry of a supervision department on historical data, customer inquiry, purchase, feedback and the like.
The specific working steps of the platform of the invention are as follows:
(1) initializing a block chain network; the supervision department is added into the network as a CA center, and writes contract codes to be deployed in the network;
(2) member nodes join; a merchant applies for registration to a CA center to a platform;
(3) selling blind box commodities; a merchant sells a batch of blind box commodities, and the numbers of all the blind boxes, the number hash values of the rare blind boxes, the blind box propaganda materials, the commodity batches, the guarantee funds and the selling time are input into an intelligent contract;
(4) the customer purchases a blind box; the client uses the purchasing function of the intelligent contract, the intelligent contract randomly sends the number num, the num is broadcasted and commonly identified to other nodes, after the other nodes do not agree, hash calculation is carried out by combining a random value k provided by the client, whether the num is a rare blind box or not is judged, and the result is fed back to the client;
(5) the client feeds back the result; the client obtains the corresponding commodity from the merchant according to the obtained serial number, and feeds the obtained commodity back to the intelligent contract, and the contract is compared with the hash calculation result according to the client feedback result so as to judge whether the merchant really sends the corresponding product to the client or not, wherein the comparison result can influence the deposit stored by the merchant in the contract;
(6) generating an endTX transaction; after all commodities in a certain batch of a certain merchant are sold or the selling time is up, the intelligent contract sends endTX transaction information to the network, after consensus is formed, all transactions in the batch are packed and linked.
The invention improves the existing blind box selling mode by using a block chain technology, does not carry out self-propaganda and self-selling, but relies on an intelligent contract to ensure that the goods are not manually intervened during selling, ensures random selling, can carry out historical inquiry on the goods to be sold, prevents a malicious merchant from carrying out secondary selling, and simultaneously, a supervision department can carry out historical inquiry on result transaction in a block, thereby being convenient for supervision.
Because the block chain has the characteristics of decentralization, no falsification and traceability, any merchant cannot change the contract code into a state favorable for the merchant, all the selling result information can be linked after reaching consensus in the network, and the cheating cost of the merchant with cheating behaviors is greatly improved. After waiting for the completion of the sale of all the commodities of a certain batch of a certain merchant or the sale time, the contract sends a result transaction message to the network, after forming consensus, all the transactions of the batch are packed and linked, and the supervision department can inquire whether the merchant operates in good faith or not according to each historical block.
The invention can effectively solve three problems encountered in the current blind box selling mode by utilizing the characteristics of fair and accurate execution of the intelligent contracts and the characteristics of non-tampering, traceability and decentralization of the block chain.
Drawings
FIG. 1 is a conceptual illustration of the platform of the present invention.
Fig. 2 is a flow chart of a customer purchasing a blind box.
Detailed Description
The present invention is further described below in the detailed description, which is provided to enable the reader to more fully understand the operational logic and design features of the present invention.
Suppose there are 2 blind box companies, company a and company B, respectively, 2 consumers and 1 regulatory authority. The specific flow is as follows.
(1) The blockchain network is initialized.
And leading the supervision department to build a block chain network and register the block chain network as a CA center node and a supervision node in the network.
Intelligent contracts are written and deployed into the network. The functions provided by contracts include, but are not limited to:
Function Sell(ProductInfopf,Timetime,intindex,int cash)
// sell function. The parameter pf contains information about the batch of product, such as: the numbers of all the blind boxes, the number hash values of the rare blind boxes and the blind box promotional material. time is the selling ending time, c is the unique identifier of the company, index is the commodity batch, and case is the deposit of the batch of commodities.
FunctionFindByCompany(Companyc)
// query function according to company information. The historical sales record of the company is queried.
FunctionBuy(int k,intmoney,intproduct_num)
// purchase function. The parameter k represents a random value k provided by a customer, money represents a purchase amount, and product _ num represents a product number purchased
FunctionGen_endTX(Companyc，intindex)
// endTX transaction generation function. The function is autonomously called by a contract, returns the selling condition of products in the first index batch of the company c, collects all transactions in the index batch of the company c to generate a block, and links and broadcasts the block.
(2) And the member node joins.
2 blind box companies make admission applications to the CA center, and provide the related information of the companies. The CA will be given 2 companies to issue key pairs after approval.
(3) The blind box product is sold.
The blind box company A calls the sell function of the contract and inputs the corresponding parameters to complete consignment. The mapping of the private key to the network is that company A signs a function call transaction with the private key of the company A and sends the function call transaction to the network, and the transaction can be verified by company B with the public key of company A to determine the behavior of company A.
(4) The customer purchases the blind box.
The client 1 registers to the CA to become a client node in the network, obtains a key pair of the client, selects a blind box product P1 of the company A, the company A transmits a random value k to the client 1 through an encryption means, the client 1 selects the blind box product to complete purchase, the contract receives a buy function call transaction sent by the client 1, and the contract takes a certain time to carry out commodity consensus after receiving a purchase request, so as to prevent the intelligent contract which is different at the same time from selling the product, and the specific process is shown as the drawing description II.
(5) And the client feeds back the result.
And the contract acquires the parameters sent by the client 1, calls the buy function, verifies whether the result is a rare article or not, and feeds back the verification result to the client 1.
(6) And generating an End transaction.
After all commodities in a certain batch of a certain merchant are sold or the selling time is up, the intelligent contract sends endTX transaction information to the network, and after a consensus is formed, all transactions in the batch are packaged into a block uplink.
Claims (5)
1. A block chain-based blind box selling platform is characterized by comprising four layers of frameworks, namely an application layer, a contract layer, a consensus layer and a data storage layer; wherein:
the application layer is responsible for interacting with the customer and the merchant to complete registration, purchase and inquiry services of the customer on the platform, and the application layer encrypts the information of the customer and the information of purchased articles cryptographically and transmits the information to the contract layer; when interacting with a merchant, the system is responsible for transmitting the batch of articles sold by the merchant, the serial numbers of all articles and the hash value of the rare article to a contract layer;
the contract layer is responsible for interacting with the customer and the merchant and providing the customer with a service for randomly selling the goods and a service for inquiring the state of the goods; providing services of inputting information of sold commodities, depositing deposit, displaying result information and withdrawing the deposit to a merchant; the contract layer itself also has the ability to send the result transaction to the merchant;
the consensus layer is responsible for the task of transaction information and block consistency in the block chain network; after successful payment, each transaction is flooded and broadcast to all nodes in the network, and after the nodes reach consistency with the state of the transaction, the transaction is confirmed; for the consensus of the block, when the selling batch of goods of any company finishes selling or reaches the selling time, as a result, the first node forming the generated result into the block broadcasts the block to other nodes, and the other nodes determine whether to accept the block according to the consensus rule;
the data storage layer is responsible for the persistence of the data of the blocks, wherein the data structure of the blocks comprises the following information: the hash value of the previous block, the hash value of the block, the merkle root hash values of all transactions of the block, the height of the block, the contract account state at the height, the information of the article batch in the block and the result transaction information of the block; the non-relational database mongoDB is adopted for the underlying database of data persistence.
2. The blockchain based blind box vending platform of claim 1, wherein a smart contract is used as a vending program to provide a fully random vending; the program is written by a regulatory body and deployed in this platform network.
3. The block chain based blind box selling platform according to claim 1, wherein all blind box merchants register to join the network, and the batch number information of commodities to be sold is input into an intelligent contract, and the intelligent contract is responsible for selling all articles.
4. The blockchain based blind box vending platform of claim 1, wherein the functions of query of historical data, customer query, purchase and feedback by regulatory authorities are supported.
5. The block chain based blind box vending platform according to any one of claims 1 to 4, characterized in that the specific workflow of the platform is as follows:
(1) initializing a block chain network; the supervision department is added into the network as a CA center, and writes contract codes to be deployed in the network;
(2) member nodes join; a merchant applies for registration to a CA center to a platform;
(3) selling blind box commodities; a merchant sells a batch of blind box commodities, and the numbers of all the blind boxes, the number hash values of the rare blind boxes, the blind box propaganda materials, the commodity batches, the guarantee funds and the selling time are input into an intelligent contract;
(4) the customer purchases a blind box; the client uses the purchasing function of the intelligent contract, the intelligent contract randomly sends the number num, the num is broadcasted and commonly identified to other nodes, after the other nodes do not agree, hash calculation is carried out by combining a random value k provided by the client, whether the num is a rare blind box or not is judged, and the result is fed back to the client;
(5) the client feeds back the result; the client obtains the corresponding commodity from the merchant according to the obtained serial number, and feeds the obtained commodity back to the intelligent contract, and the contract is compared with the hash calculation result according to the client feedback result so as to judge whether the merchant really sends the corresponding product to the client or not, wherein the comparison result can influence the deposit stored by the merchant in the contract;
(6) generating an endTX transaction; after all commodities in a certain batch of a certain merchant are sold or the selling time is up, the intelligent contract sends endTX transaction information to the network, after consensus is formed, all transactions in the batch are packed and linked.
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| CN113807917A (en) * | 2021-09-13 | 2021-12-17 | 广州酷狗计算机科技有限公司 | Virtual blind box circulation and order placing control method and device, equipment, medium and product |
| CN114328754B (en) * | 2022-03-04 | 2022-06-28 | 中科计算技术创新研究院 | Blind box management method, blind box management node and digital blind box system |
| CN116346349B (en) * | 2023-03-03 | 2023-10-20 | 广州玩胜网络科技有限公司 | Digital blind box management method and system based on block chain and NFT |
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