CN111178916B - An Antique Identification and Trading System Based on Blockchain - Google Patents

Abstract

The invention discloses a blockchain-based antique identification and transaction system. The underlying database of the system includes: user nodes, appraiser nodes and antique nodes. The system includes the following modules: appraiser management module, appraisal operation module, appraisal record module and auction market module. In the process of creating the above three types of nodes, the system performs antique data standardization, duplicate checking, and consensus confirmation. If the verification is successful, a block is generated, stamped with a time stamp, and recorded on the corresponding blockchain. The system introduces qualified appraisers, makes full use of the technical characteristics of the blockchain, simplifies the antique appraisal and transaction process, improves the effectiveness of appraisal results, avoids repeated appraisal, enhances credibility, and improves the transparency of the antique industry appraisal and transaction process and standardization, reduce the possibility of being deceived due to ignorance of the antique industry, and also provide a credible appraisal and trading platform for antique collectors.

Description

An Antique Identification and Trading System Based on Blockchain

technical field

The present invention relates to the application field of blockchain, in particular to an antique identification and transaction system based on blockchain.

Background technique

Blockchain is a new application model using computer technologies such as encryption algorithms, distributed storage, consensus mechanisms, and longest chain mechanisms. Blockchain is essentially a decentralized database. Each node stores complete data according to the block chain structure, and each node is independent and equal. It relies on the consensus mechanism to ensure the consistency of storage. No one Nodes can record ledger data separately, thereby avoiding the possibility of false accounting caused by single bookkeeping. Also because all nodes are bookkeeping nodes, in theory, unless all nodes are destroyed, transaction data will not be lost, thereby ensuring the security of transaction data, realizing information sharing, and improving the efficiency of information circulation.

A smart contract is a computer program that is automatically executed according to pre-agreed rules. It can receive and store received information, and can also send information and value to the outside world.

With the development of the economy and the gradual improvement of people's living standards and cultural quality, collecting antiques has gradually changed from a hobby of people after dinner to one of the methods of people's investment and financial management, and has gradually become the most popular investment after real estate and stocks. one of the channels. First of all, the demand for appraisal, which is the first link in antique collection, is becoming more and more vigorous; secondly, various scams in antique investment are hard to guard against, such as counterfeit products, entrustment, fraudulent schemes, etc.; moreover, it is difficult for people without industry experience to find professional Appraisal agencies appraise the antiques in their hands, and it is difficult to buy authenticated antiques at relatively transparent prices; finally, there is no open platform for displaying non-national collections, which has a negative impact on the aesthetics and awareness of the entire industry.

Contents of the invention

Aiming at the deficiencies of the existing technology, the present invention proposes a blockchain-based antique identification and trading system, which can review the qualifications of appraisers, identify antiques, bid for antiques, improve industry transparency, and avoid scams in antique collection.

The object of the present invention is achieved through the following technical solutions: a block chain-based antique identification and transaction system, the underlying database of the system includes: user nodes, appraiser nodes and antique nodes, the system includes the following modules: appraiser Management module, authentication operation module, authentication record module and bidding market module.

The appraiser management module is divided into an appraiser qualification application unit, an appraiser qualification review unit, and an appraiser query unit; the appraiser qualification application unit is used to apply for appraiser qualification; the appraiser qualification review unit is used for antique appraisal The association reviews the appraiser's qualification application. After the review is passed, the blockchain address is assigned according to the identity information of the appraiser and an appraiser node bound to the appraiser's port is established; the appraiser query unit can be used for users to view the appraiser ranking. It can also be used to query the appraiser's qualifications and historical appraisal records, and store the appraiser's qualifications and historical appraisal records in the appraiser node.

The identification operation module is divided into an application identification unit, an appointment identification time unit, and an identification result unit; the application identification unit is used for the owner of the antique to input the basic information of the antique, select an appraiser to apply for appraisal, and upload the corresponding information after the appraiser is successfully selected. After encryption, it is stored in user nodes, appraiser nodes, and antique nodes. The appointment appraisal time unit is used for appraisers and antique owners to reserve offline appraisal time, and the system automatically stores the offline appraisal time to the antique owner's user node, appraiser node, and antique node through smart contracts. The upload appraisal result unit is used for appraisers to upload appraisal results, including upload appraisal time and place, antique basic information, antique background and culture, appraisal results, estimated price and other information; the appraisal result information will be automatically transmitted to notary office.

The identification record module is divided into a user viewing identification record unit and an appraiser viewing identification record unit. The Antique Owner Viewing Appraisal Record Unit is used for the antique owner to inquire about the antiques to be identified, view the identified antiques, and initiate a bid. When initiating a bid, it is necessary to select the auction time and fill in the starting price, and hand over the antiques to the Antique Association for safekeeping . The appraiser check appraisal record unit is used for the appraiser to check the antiques to be appraised and make an appointment for appraisal time, and to view the appraised antiques and appraisal results.

The bidding market module is divided into bidding units, bidding units, sold units and unsold units. The bidding units are used for users to check the basic information, identification information, estimated price, bidding time, Starting price and other information. The units in the bidding mentioned above are used for bidding. The successful bidders need to pay the bidding money to the Antiques Association within the specified time. After the Antiques Association confirms the receipt of the bidding money, it will freeze the bidding money. After the successful bidder confirms the receipt of the antiques, the bidding money will be unfrozen. To the owner of the antique. The bidding bidder, bidding price, auction payment transaction time, antique handover time, and antique ownership change will all be stored in user nodes, appraiser nodes, and antique nodes. The sold unit is used to check the basic information, identification information, bidding details and other information of the sold antiques. The unsold unit is used to display basic information, identification information, bidding details and other information of the antiques that have not been successfully sold after the bidding was initiated.

Further, the system encrypts the information through the smart contract and stores it in the corresponding underlying database.

Furthermore, the user sends a query request to the system through keywords, and the system returns to the cache after serializing the latest information related to the user node, antique node and appraiser node after receiving the call request from the query interface service, and feedback information to users.

Further, the ledgers in user nodes, antique nodes and appraiser nodes related to the bidding market module are regularly synchronized to the blockchain for updating and repairing.

Further, the antique identification method of the system is specifically:

(1) After the registration of the owner of the antique is completed, a user node is created; the appraiser registers and passes the qualification review of the appraiser, and the appraiser node is created.

(2) The owner of the antique uploads the basic information of the antique, selects the appraiser, completes the appraisal application, and creates an antique node in the application appraisal unit; backs up and stores information such as user contact information, basic information of the antique, and appraiser information to the user node, Appraiser node and antique node.

(3) The appraiser makes an appointment with the user for offline appraisal time in the appointment appraisal time unit. The offline appraisal time will be stored in user nodes, appraiser nodes, and antique nodes.

(4) The owner of the antique and the appraiser complete the antique appraisal process offline, and the appraiser uploads the appraisal information, including appraisal time and place, basic information of the antique, background and culture of the antique, appraisal result, estimated price and other information. The identification information is automatically transmitted to the notary office through the background of the system, and the notary office will notarize the identification results after receiving the information. The system stores identification information to user nodes, appraiser nodes, and antique nodes to complete the process of antique identification.

Furthermore, in the process of antique identification, digital signatures, hash algorithms, asymmetric encryption, sharding, Merkle trees and other technical means are used to store multiple backups of information in the node LevelDB maintained by multiple parties.

Further, each step of the antique identification process will be sent to an administrator node for data specification, recorded in the corresponding blockchain ledger, and broadcast the record to user nodes, appraiser nodes and antique nodes. After the consensus of the user node, appraiser node and antique node is confirmed, if the verification is successful, a block is generated, stamped with a time stamp, and recorded on the corresponding blockchain.

Further, the antique trading method of the system is specifically:

(1) For the antiques that have been authenticated, the user checks the appraisal record unit and enters the bidding time, starting price and other information to initiate a bidding. After the initiation is successful, the information will be synchronized to the bidding unit, user node, appraiser node, and antique node.

(2) Antique buyers check all the antiques to be bid in the bidding unit, and go to the bidding unit to bid at the specified bidding time.

(3) The units in the bidding are used for bidding. The successful bidders need to pay the bidding money to the Antiques Association within the specified time. After the Antiques Association confirms the receipt of the bidding money, it will freeze the bidding money. After the successful bidder confirms the receipt of the antiques, the auction will be unfrozen to the owner of the antique. The bidding bidder, bidding price, auction payment transaction time, antique handover time, and antique ownership change will all be stored in the blockchain.

The beneficial effects of the present invention are as follows:

1. The system is established based on the blockchain, which ensures that the data cannot be tampered with, is open, transparent, and durable, and creates a complete blockchain ecosystem.

2. Screen important information, classify the information into three types of nodes, and use smart contracts to execute to ensure the reliability of transactions.

3. Use multiple encryption and privacy protection methods to ensure that the data is authentic and not leaked.

4. The data upload is standardized by the management node to maintain data consistency, facilitate data query, and prevent a large amount of invalid data upload from increasing the burden on the system.

Description of drawings

Figure 1 is the basic architecture diagram of the blockchain-based antique identification and trading system;

Figure 2 is a flowchart of antique appraisal and transaction.

Detailed ways

In order to make the purpose and effect of the present invention more apparent, the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

The present invention provides a blockchain-based antique identification and transaction system, and sets different permissions and functions for the two roles of administrators and users. Antique owners can upload antique information to apply for appraisal, appraisers can upload appraisal results, and antique buyers can bid and trade antiques. The blockchain acts as a public ledger for information interaction with users, which can be recorded in the consensus of user nodes, appraiser nodes, and antique nodes accordingly. The appraiser qualification review is performed by the administrator as an intermediary to receive the appraiser qualification application. After the review is passed, a new appraiser node is generated and added to the blockchain. For user nodes, there is a small ledger for recording account information. The system needs to regularly maintain the information of nodes and blockchains.

Figure 1 is the framework diagram of the antique identification and trading system. The underlying database of the system includes: user nodes, appraiser nodes and antique nodes. The system includes the following modules: appraiser management module, appraisal operation module, appraisal record module and bidding market module.

The appraiser management module is divided into an appraiser qualification application unit, an appraiser qualification review unit, and an appraiser query unit. The three major units cover all the operations of appraiser qualifications, and adopt technologies such as digital signature algorithm, block chain ledger structure, and consensus algorithm to ensure that the data generation and transmission process cannot be forged. Compared with traditional application systems, data storage and The security mechanism is completely operated, maintained and managed by a single center, and the data management authority is completely controlled in the central structure. The system administrator can add, delete, modify and check the data at will. In the blockchain-based antique identification and trading system, any organization It is almost impossible for individuals and individuals to modify and falsify data. The appraiser qualification application unit is used to apply for the appraiser qualification; the appraiser qualification review unit is used for the Antique Appraisal Association to review the appraiser qualification application. The appraiser node bound to the appraiser port; the appraiser query unit can be used for users to view appraiser rankings, and can also be used to query appraiser qualifications and historical appraisal records, and store appraiser qualifications and historical appraisal records In the appraiser node.

The appraisal operation module is divided into an application appraisal unit, an appointment appraisal time unit and an appraisal result uploading unit. In the appraisal operation module, whether it is applying for appraisal or uploading the appraisal results, as long as fraud and other disputes occur, ownership disputes and value disputes will arise. Therefore, every step of the operation needs to be traced and accurately positioned. And because the blockchain ledger structure of the blockchain ensures that all blocks are connected in series into a vertical chain structure, the parent block is continuously accessed, and can be traced back to the genesis block in the end; Once bound, it is accurate to the person, ensuring that the operation of the ledger data cannot be denied. Therefore, every operation can be accurately traced back to the initiator of the operation, and cannot be denied; this large-scale technology supports that every modification of data can be accurately traced back to the initiator of the operation, preventing the occurrence of denial. The application identification unit is used for the owner of the antique to input the basic information of the antique, select an appraiser to apply for appraisal, and after the appraiser is successfully selected, the applicant's ID number is encrypted to form a private key of the blockchain and stored to the user node and the appraiser node , antique nodes. The appointment appraisal time unit is used for appraisers and antique owners to reserve offline appraisal time, and the system automatically stores the offline appraisal time to the antique owner's user node, appraiser node, and antique node through smart contracts. The upload appraisal result unit is used for appraisers to upload appraisal results, including upload appraisal time and place, antique basic information, antique background and culture, appraisal results, estimated price and other information; the appraisal result information will be automatically transmitted to notary office.

The identification record module is divided into a user viewing identification record unit and an appraiser viewing identification record unit. The identification records are stored in multiple nodes. After verification, comparison, witness and maintenance by multiple nodes, it is almost impossible for any organization or individual to obtain the control rights of all nodes at the same time. Therefore, the data in the distributed ledger cannot be unilaterally Modification and forgery, while authentication records are key information in the system and need to be ensured that they cannot be tampered with. The Antique Owner Viewing Appraisal Record Unit is used for the antique owner to inquire about the antiques to be identified, view the identified antiques, and initiate a bid. When initiating a bid, it is necessary to select the auction time and fill in the starting price, and hand over the antiques to the Antique Association for safekeeping . The appraiser check appraisal record unit is used for the appraiser to check the antiques to be appraised and make an appointment for appraisal time, and to view the appraised antiques and appraisal results. And the identification record module supports offline query of the identification records after the smart contract is pushed.

The bidding market module is divided into bidding units, bidding units, completed units and unsold units. The account books in user nodes, antique nodes and appraiser nodes related to the bidding market module are regularly synchronized to the blockchain for update and repair. In the event of abnormal conditions, all decentralized application services will not be affected, and have strong anti-attack and disaster recovery capabilities. The bidding market module is a value transmission network in the entire system, which generates value through fair and just bidding , Do a good job in disaster preparedness, encourage more participants to join in spontaneously, promote a virtuous circle of value, and form an autonomous, scalable, and self-prosperous value network. The bidding unit is used for users to check the basic information, identification information, estimated price, bidding time, starting price and other information of all antiques to be bid. The unit in the bidding is used for bidding, and the highest bidder wins. The successful bidder needs to pay the bidding money to the Antiques Association within the specified time. After the Antiques Association confirms the receipt of the bidding money, it will freeze the bidding money. After that, unfreeze the bidding money to the owner of the antique. The bidding bidder, bidding price, auction payment transaction time, antique handover time, and antique ownership change will all be stored in the user node, appraiser node, and antique node to ensure authenticity and credibility and cannot be tampered with. The sold unit is used to check the basic information, identification information, auction details and other information of the sold antiques. The unsold unit is used to display basic information, identification information, bidding details and other information of the antiques that have not been successfully sold after the bidding was initiated.

The system encrypts information through smart contracts and stores it in the corresponding underlying database. Each node is an independent module, which independently completes the work of storing and calling data, and monitors changes in real time, alarms abnormal changes, and is audited by the management node, which can easily prevent fraud, unless there is a way to tamper with the three types of areas at the same time Relevant information in the block chain.

The user sends a query request to the system through keywords. After receiving the call request from the query interface, the system serializes the latest information related to the user node, antique node and appraiser node and returns it to the cache service, and Feedback information to users.

Figure 2 is a flow chart of antique identification and transaction. The antique identification method of this system is:

(1) After the registration of the owner of the antique is completed, a user node is created; the appraiser registers and passes the qualification review of the appraiser, and the appraiser node is created.

(2) The owner of the antique uploads the basic information of the antique, selects the appraiser, completes the appraisal application, and creates an antique node in the application appraisal unit; backs up and stores information such as user contact information, basic information of the antique, and appraiser information to the user node, Appraiser node and antique node.

(3) The appraiser makes an appointment with the user for offline appraisal time in the appointment appraisal time unit. The offline appraisal time will be stored in user nodes, appraiser nodes, and antique nodes.

(4) The owner of the antique and the appraiser complete the antique appraisal process offline, and the appraiser uploads the appraisal information, including appraisal time and place, basic information of the antique, background and culture of the antique, appraisal result, estimated price and other information. The identification information is automatically transmitted to the notary office through the background of the system, and the notary office will notarize the identification results after receiving the information. The system stores identification information to user nodes, appraiser nodes, and antique nodes to complete the process of antique identification.

In the process of antique identification, through digital signature, hash algorithm, asymmetric encryption, sharding, Merkle tree and other technical means, multiple backups of information are stored in the node LevelDB maintained by multiple parties.

Each step of the antique identification process will be sent to an administrator node for data specification, recorded in the corresponding blockchain account book, and broadcast the record to the user node, appraiser node and antique node, when the user node, After the consensus of the appraiser node and the antique node is confirmed, if the verification is successful, a block will be generated, stamped with a time stamp, and recorded on the corresponding blockchain.

The antique trading process of the system is:

(1) For the antiques that have been authenticated, the user checks the appraisal record unit and enters the bidding time, starting price and other information to initiate a bidding. After the initiation is successful, the information will be synchronized to the bidding unit, user node, appraiser node, and antique node.

(2) Antique buyers check all the antiques to be bid in the bidding unit, and go to the bidding unit to bid at the specified bidding time.

(3) The units in the bidding are used for bidding. The successful bidders need to pay the bidding money to the Antiques Association within the specified time. After the Antiques Association confirms the receipt of the bidding money, it will freeze the bidding money. After the successful bidder confirms the receipt of the antiques, the auction will be unfrozen to the owner of the antique. The bidding bidder, bidding price, auction payment transaction time, antique handover time, and antique ownership change will all be stored in the blockchain.

Those of ordinary skill in the art can understand that the above description is only a preferred example of the invention, and is not intended to limit the invention. Although the invention has been described in detail with reference to the foregoing examples, for those skilled in the art, it can still be understood. The technical solutions described in the foregoing examples are modified, or some of the technical features are equivalently replaced. All modifications, equivalent replacements, etc. within the spirit and principles of the invention shall be included in the scope of protection of the invention.

Claims (8)

1. A blockchain-based antique identification and trading system, characterized in that the underlying database of the system includes: user nodes, appraiser nodes and antique nodes, and the system includes the following modules: appraiser management module, appraisal operation module , identification record module and bidding market module; The appraiser management module is divided into an appraiser qualification application unit, an appraiser qualification review unit, and an appraiser query unit; the appraiser qualification application unit is used to apply for appraiser qualification; the appraiser qualification review unit is used for antique appraisal The association reviews the appraiser's qualification application. After the review is passed, the blockchain address is assigned according to the identity information of the appraiser and an appraiser node bound to the appraiser's port is established; the appraiser query unit can be used for users to view the appraiser ranking. It can also be used to query the appraiser's qualifications and historical appraisal records, and store the appraiser's qualifications and historical appraisal records in the appraiser node; The identification operation module is divided into an application identification unit, an appointment identification time unit, and an identification result upload unit; the application identification unit is used for the owner of the antique to input the basic information of the antique, select an appraiser to apply for appraisal, and send the applicant The private key of the block chain is encrypted and stored to the user node, appraiser node, and antique node; the appointment appraisal time unit is used for the appraiser and the owner of the antique to make an appointment for offline appraisal time. The system uses the smart contract Automatically store the offline appraisal time to the user node, appraiser node, and antique node of the owner of the antique; the upload appraisal result unit is used for the appraiser to upload appraisal results, including upload appraisal time and place, basic information of antiques, antique background And culture, identification results, estimated price and other information; the information of the identification results will be automatically transmitted to the notary office through the background system; The identification record module is divided into a user viewing identification record unit and an appraiser viewing identification record unit; the antique owner viewing identification record unit is used for the antique owner to query the antiques to be identified, view the identified antiques and initiate a bid. When initiating a bidding, you need to select the bidding time and fill in the starting price, and hand over the antiques to the Antiques Association for safekeeping; the appraiser checks the appraisal record unit, which is used for the appraiser to check the antiques to be appraised and make an appointment for appraisal time, view the appraised antiques and identification results; The bidding market module is divided into bidding units, bidding units, sold units and unsold units. The bidding units are used for users to check the basic information, identification information, estimated price, bidding time, The starting price and other information; the units in the bidding are used for bidding, and the successful bidders need to pay the bidding money to the Antiques Association within the specified time. After that, unfreeze the bidding money to the owner of the antique; the bidding bidder, bidding price, transaction time of the bidding money, antique handover time, and antique ownership change will all be stored in the user node, appraiser node, and antique node; Check the basic information, identification information, bidding details and other information of the sold antiques; the unsold unit is used to display the basic information, identification information, bidding details and other information of the antiques that have not been successfully sold after the bidding is initiated. 2. The antique identification and trading system according to claim 1, wherein the system encrypts information through smart contracts and stores it in the corresponding underlying database. 3. The antique appraisal and transaction system according to claim 1, wherein the user sends a query request to the system through a keyword, and the system sends the user node, antique node and appraiser node to the system after receiving the call request from the query interface. The latest information related to it in the cache is serialized and returned to the cache service, and the information is fed back to the user. 4. The antique identification and trading system according to claim 1, characterized in that, the account books in the user nodes, antique nodes and appraiser nodes related to the bidding market module are regularly synchronized to the block chain for updating and repairing. 5. The antique identification and trading system according to claim 1, wherein the antique identification method of the system is specifically: (1) After the registration of the owner of the antique is completed, a user node is created; the appraiser registers and passes the qualification review of the appraiser, and the appraiser node is created; (2) The owner of the antique uploads the basic information of the antique, selects the appraiser, completes the appraisement application and creates an antique node in the application appraisal unit; backs up and stores the user's contact information, basic information of the antique, appraiser information and other information to the user node, Appraiser node and antique node; (3) The appraiser makes an appointment with the user for offline appraisal time in the appointment appraisal time unit; the offline appraisal time will be stored in the user node, appraiser node, and antique node; (4) The owner of the antique and the appraiser complete the antique appraisal process offline, and the appraiser uploads the appraisal information, including appraisal time and place, basic information of the antique, background and culture of the antique, appraisal result, estimated price, etc.; appraisal information passes through the system The background is automatically transmitted to the notary office, and the notary office will notarize the identification results after receiving the information; the system stores the identification information in the user node, appraiser node, and antique node to complete the process of antique identification. 6. The antique appraisal and transaction system according to claim 5, characterized in that, during the antique appraisal process, multiple backups of information are stored in multiple parties through technical means such as digital signature, hash algorithm, asymmetric encryption, fragmentation, and Merkle tree Nodes maintained by LevelDB. 7. According to the described antique identification and trading system of claim 6, it is characterized in that, each step of the operation of the antique identification process will be sent to a certain administrator node for data specification, recorded in the corresponding block chain ledger, and The record is broadcast to the user node, appraiser node and antique node. When the user node, appraiser node and antique node are consensus-confirmed, a block will be generated if the verification is successful, stamped with a time stamp, and recorded on the corresponding blockchain. 8. The antique identification and trading system according to claim 1, wherein the antique trading method of the system is specifically: (1) For the antiques that have been authenticated, the user checks the identification record unit and enters the bidding time, starting price and other information to initiate a bidding. After the initiation is successful, the information will be synchronized to the bidding unit and the user node, appraiser node, and antique node; (2) The antique buyer checks all the antiques to be bid in the bidding unit, and goes to the bidding unit to bid at the bidding time; (3) The unit in the bidding is used for the auction. The successful bidder needs to pay the bidding money to the Antiques Association within the specified time. After the Antiques Association confirms the receipt of the bidding money, it will freeze the bidding money. After the successful bidder confirms the receipt of the antique, the auction will be unfrozen The owner of the antique; the bidder, bid price, transaction time of the auction money, handover time of the antique, and change of ownership of the antique will all be stored in the blockchain.

Images