CN113763174A

CN113763174A - Block chain-based digital bill transaction system, method and storage medium

Info

Publication number: CN113763174A
Application number: CN202111031677.8A
Authority: CN
Inventors: 林文著
Original assignee: Shenzhen Shangpiaoquan Technology Co ltd
Current assignee: Shenzhen Shangpiaoquan Technology Co ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2021-12-07

Abstract

The application relates to a block chain-based digital bill transaction system, a method, a computer device and a storage medium, wherein the digital bill transaction system comprises: business ticket circle platform and block chain; the merchant ticket ring platform creates a digital ticket transfer transaction according to a digital ticket transfer request initiated by an initiating terminal and issues the digital ticket transfer transaction to a block chain; and the block chain executes the digital bill transfer transaction. The digital assets (digital bills) are naturally separable, and the problem that the bills cannot be separated in the prior art is solved through transferring the digital bills. Due to the centrality, the non-falsification and the traceability of the block chain, the problems of limitation of region and time, long time for transferring or pasting the bill, consumption of a large amount of manpower and material resources, risk increase and information leakage in the prior art are solved.

Description

Block chain-based digital bill transaction system, method and storage medium

Technical Field

The present application relates to the field of blockchain technology, and in particular, to a system, method, computer device and storage medium for digital ticket trading based on blockchain.

Background

In the conventional electronic commercial acceptance draft, there are the following problems. 1) The bill can be transferred or attached to the whole endorsement, and the actual transaction amount is not fixed. This makes paying the goods with the ticket a very difficult task, and the bearer must make a fund to change the ticket to money, but at the cost of higher interest cost. 2) The transfer or the subsidence of the bills depends on a bill system of a bank, and the bill system of the bank can be used only in fixed working time, and even the trouble problem of the bill system of the bank in working time can be encountered sometimes. 3) The ticket transferor now requires the equal-fund party to have corresponding fund and proper charge, the process can take days or even months, and the transfer or sticking time is long. 4) In the current financial industry, each organization has an own account book, and a large amount of operations such as account checking, clearing, settlement and the like are required to be performed when business docking is performed between the organizations, and a large amount of manpower and material resources are required to be consumed in the operations. In the financial field of bills and supply chains, many human interventions cause business, and a plurality of violation events and operation risks exist. While the bill business creates a great deal of liquidity, violation operations or user fraud are easy to breed in related markets, and further, the bill exchange business events of commercial banks are intensively outbreaked. In the field of clearing and settlement, due to the fact that infrastructure architectures and business processes of different financial institutions are different, and meanwhile, a plurality of manual processing links are involved in the specific operation process, the factors greatly increase business cost and are prone to errors. In the field of user identity recognition, efficient interaction of user data among different financial institutions is difficult to realize, so that repeated authentication cost is high, and the risk that the user identity is leaked by some intermediary institutions is indirectly brought.

In summary, the problems of non-detachable bills, limited bill transfer or sticking time, long transfer or sticking time, large consumption of manpower and material resources, increased risk, information leakage and the like exist in the prior art.

Disclosure of Invention

In view of the above, there is a need to provide a block chain based digital instrument trading system, method, computer device and storage medium.

In a first aspect, a digital instrument trading system based on a blockchain is provided, which includes: business ticket circle platform and block chain;

the merchant ticket ring platform creates a digital ticket transfer transaction according to a digital ticket transfer request initiated by an initiating terminal and issues the digital ticket transfer transaction to a block chain;

and the block chain executes the digital bill transfer transaction.

In one embodiment, the merchant ticket ring platform is used to,

receiving a digital bill query request initiated by an initiating terminal to obtain a held digital bill;

responding to the selection operation of an initiating terminal on the held digital ticket, and determining a target digital ticket;

generating a digital ticket transfer request for transferring the target digital ticket.

In one embodiment, performing the digital instrument transfer transaction comprises:

the block chain calls an intelligent contract to verify the digital bill; when the verification is passed, sending verification passing information to the business ticket circle platform;

and the merchant ticket circle platform sends a signing notification message to a receiving end after receiving the verification passing information.

In one embodiment, the merchant ticket ring platform is used to,

and after receiving the receiving information returned by the receiving end, freezing the target digital bill.

In one embodiment, the merchant ticket ring platform is configured to:

receiving the acceptance draft issued by the initiating terminal to generate bill information of the acceptance draft;

carrying out compliance verification on bill information of the acceptance draft;

when the compliance verification is passed, carrying out the pledge endorsement of the bill of the draft to a hosting bank;

and when receiving the sign-in success information returned by the escrow bank, issuing a digital bill equivalent to the bill for accepting the draft.

In one embodiment, the merchant ticket ring platform sends the equivalent digital ticket and the corresponding originating information to the blockchain after issuing the digital ticket equivalent to the ticket for accepting the draft; and calling an intelligent contract by the block chain, issuing asset information of the equivalent digital bill and the corresponding initiator information, and writing the asset information into the block chain.

In one embodiment, after the asset information is written into the blockchain, the blockchain sends the release success information to the initiating terminal.

In a second aspect, there is provided a blockchain-based digital instrument trading method, including:

establishing a digital bill transfer transaction according to a digital bill transfer request initiated by an initiating terminal through a merchant bill circle platform, and issuing the digital bill transfer transaction to a block chain;

the digital instrument transfer transaction is performed through a blockchain.

In a third aspect, a computer device is provided, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor, and when the processor executes the computer program, the following steps are implemented:

the digital instrument transfer transaction is performed through a blockchain.

In a fourth aspect, there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of:

the digital instrument transfer transaction is performed through a blockchain.

The above block chain based digital bill transaction system, method, computer device and storage medium, the digital bill transaction system, comprising: business ticket circle platform and block chain; the merchant ticket ring platform creates a digital ticket transfer transaction according to a digital ticket transfer request initiated by an initiating terminal and issues the digital ticket transfer transaction to a block chain; and the block chain executes the digital bill transfer transaction. The digital assets (digital bills) are naturally separable, and the problem that the bills cannot be separated in the prior art is solved through transferring the digital bills. Due to the centrality, the non-falsification and the traceability of the block chain, the problems of limitation of region and time, long time for transferring or pasting the bill, consumption of a large amount of manpower and material resources, risk increase and information leakage in the prior art are solved.

Drawings

FIG. 1 is a block diagram of a block chain based digital instrument trading system in one embodiment;

FIG. 2 is a diagram of the network architecture of the fabric in one embodiment;

FIG. 3 is a diagram illustrating an internal structure of a computer device according to an embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

In one embodiment, as shown in fig. 1, there is provided a block chain-based digital instrument trading system, including: business ticket circle platform and block chain;

and the block chain executes the digital bill transfer transaction.

Optionally, the merchant ticket ring platform is for,

In the embodiment of the invention, the business ticket circle platform comprises a business ticket circle client, a client logs in the business ticket circle client, the business ticket circle client responds to the inquiry request operation of an initiator on the digital tickets stored in the block chain on the interface of the business ticket circle client to generate a digital ticket inquiry request, and the digital tickets held by the initiator are obtained according to the digital ticket inquiry request. The initiator selects the held digital bill and selects the receiving terminal, and the merchant ticket ring platform responds to the selection operation to determine the digital bill to be transferred (namely the target digital bill) and the receiving terminal and generate a digital bill transfer request.

Optionally, performing the digital instrument transfer transaction comprises:

In the embodiment of the invention, the blockchain calls the intelligent contract arranged on the blockchain to verify the digital bill, and whether the share of the digital bill is enough or not is verified. When the share of the digital ticket is sufficient, the block chain sends the verification passing information to the merchant ticket ring platform. And after receiving the verification passing information, the merchant ticket circle platform sends a signing notification message to the receiving end to notify the receiving end that the digital assets (namely the digital tickets) need to be signed. When the assets are signed, the receiving end logs in the business ticket circle platform, can see the assets to be signed, clicks to sign, enters a secondary page to operate, and selects to confirm the signing or refuse the signing. When the share of the digital bill is insufficient, the block chain sends verification failure information to the business ticket circle platform. And after the merchant ticket circle platform receives the verification failure information, the merchant ticket circle platform informs the initiating terminal that the digital ticket transfer fails. Or the user selects the held digital ticket, selects the published assets, can check multiple assets, selects the receiving end, clicks to pay, and responds to the selection operation by the business ticket circle client to select the published assets. The authenticity of the asset is verified as well as the receiving end (payee) authenticity. And then, initiating a transfer notice to inform a receiving end of signing for the assets. When the assets are signed, the receiving end logs in the business ticket circle platform, can see the assets to be signed, clicks to sign, enters a secondary page to operate, and selects to confirm the signing or refuse the signing. And after the receipt is confirmed, the blockchain calls an intelligent contract deployed on the blockchain to verify the digital bill, and whether the share of the digital bill is enough is verified. When enough, the asset transfer operation is initiated, and the intelligent contract is called to transfer the digital assets (namely, the fund flow and the fund change under the account book of the block chain).

Optionally, the merchant ticket ring platform is for,

In the embodiment of the invention, the merchant ticket ring platform receives the receiving information returned by the receiving terminal, which indicates that the transfer of the digital tickets is successful, and freezes the transferred digital tickets, so that the situation that the same digital tickets are transferred repeatedly is prevented.

Optionally, the merchant ticket ring platform is to:

In the embodiment of the invention, a customer (namely an originating terminal) logs in a business ticket circle platform, a held acceptance bill is issued to the business ticket circle platform, the originating terminal clicks an uploading operation key, and the bill information of the acceptance bill is integrated to the business ticket circle platform, wherein the bill information comprises the factors of bill number, money amount, acceptance person, expiration date and the like. The business ticket circle platform automatically verifies the compliance of the acceptance bill information. The initiating end carries out escrow application, carries out endorsement on the bill of the remittance bill to the appointed account of the escrow bank, and waits for the receipt of the escrow bank after the escrow is finished. And after the escrow bank signs successfully, the escrow bank informs the merchant ticket circle platform to issue equivalent digital tickets.

Optionally, after issuing a digital bill equivalent to a bill accepting the draft, the merchant ticket ring platform sends the equivalent digital bill and corresponding originating information to the block chain; and calling an intelligent contract by the block chain, issuing asset information of the equivalent digital bill and the corresponding initiator information, and writing the asset information into the block chain.

In the embodiment of the invention, the business ticket ring platform automatically checks the compliance of the bill information of the acceptance bill, writes the bill information into a database (also called as a digital asset structure table) after checking the compliance of the bill information of the acceptance bill, and simultaneously sends a request to deploy the intelligent contract on the block chain.

The block chain encrypts the bill information to generate a voucher for the ticket side at the initiating end, the voucher is associated with the digital bill, only a voucher person can check the own digital assets, and the voucher and the digital bill are written into the database, so that the ticket side can check the own voucher conveniently. Assets can also be viewed through the merchant ticket ring platform.

Optionally, after the asset information is written into the blockchain, the blockchain sends the information of successful release to the initiating end.

In the embodiment of the invention, the blockchain sends the release success information to the initiating terminal to inform the initiating terminal that the digital assets (digital tickets) can be used for payment or financing.

In the embodiment of the invention, the business ticket circle platform comprises a business ticket circle client and a business ticket circle management end. The user issues the bill information, the business ticket circle client verifies the bill information, and when the verification is passed, the bill information is stored in a database. And the database returns a warehousing message to the business ticket ring management end, and the business ticket ring management end sends an audit message to be warehoused to the database. And the business ticket circle management terminal sends a query and verification message to the database, and when the verification fails, the database returns a verification failing message to the business ticket circle client. And when the audit is passed, the database returns an audit passing message to the business ticket circle client, then the business ticket circle client initiates a ticket escrow message to the escrow bank, the escrow bank returns a signing message to the business ticket circle client, and the business ticket circle client informs the database that the asset signing is successful. The hosting bank issues the digital assets to the blockchain platform, the blockchain platform compares the issued digital assets with the digital assets to be issued by the current hosting bank, whether the issued digital assets are repeated or not is judged, if the repeated issued digital assets are judged to be repeated, the blockchain platform informs the hosting bank that the assets exist and the issuing is failed, and then the hosting bank informs the business ticket circle that the assets exist and the issuing is failed. If not, the blockchain platform informs the hosting bank that the asset is successfully published, then the hosting bank informs the business ticket circle client that the asset is successfully published, and the business ticket circle client stores the blockchain digital asset information to the database after knowing that the asset is successfully published.

Optionally, asset redemption (ticket due return) is also included. After the bill expires, the escrow bank initiates an automatic collection and funds are transferred to the clearing account. And after receiving the ticket money, the clearing bank makes a fund into the bank account of the asset holder corresponding to the due ticket to complete asset cashing.

Specifically, after receiving the fare, the clearing bank instructs the blockchain platform to inquire the asset holder, the blockchain platform returns the information of the asset holder to the clearing bank, the clearing bank instructs the blockchain platform to inquire the bank account number of the asset holder in batch, the blockchain platform returns the bank account number of the asset holder to the clearing bank, and the clearing bank deposits the fund to the bank account of the asset holder corresponding to the due bill to complete the asset cashing.

Optionally, digital ticket financing is also included. The asset holder can select a proper capital organization for financing on the business ticket circle platform through the held digital ticket, and the capital organization finishes asset transfer and loan operation on the block chain platform after signing off the digital ticket.

Selecting assets to be financed and corresponding capital organizations, clicking 'immediate financing', transferring the corresponding digital assets to the corresponding capital organizations by the blockchain platform (wherein, the related schemes for transferring the digital assets are consistent with the schemes in the embodiments, and are not described here again), and logging in the merchant ticket circle platform by the capital organizations for signing. And finishing the sign-in confirmation. And executing deposit operation.

Optionally, asset reconciliation is also included. And (4) checking all unreturned assets and assets remaining persons from the local database, comparing the assets with the data of the block chain, and sending an email to inform an administrator if the assets are inconsistent.

In the embodiment of the invention, a timing task is started, the user asset share is inquired from a database (a local database) at regular time, a blockchain database returns the user asset share and blockchain association information to the timing task, the user asset share is inquired from a blockchain platform at regular time, the user asset share and blockchain association information are returned to the timing task by the blockchain platform, the occupied asset share in the local database of the user and the occupied asset share in the blockchain platform are read, and if the user asset share and the occupied asset share are inconsistent, an email is sent to inform an administrator.

In the embodiment of the invention, the scheme has the following effects:

1) the trading of tickets has long been in the role of a third party to ensure that the delivery of value documents is secure and reliable. The trust of both sides of transaction in paper bills is established on the basis of bill authenticity, and even in the existing electronic bill transaction, the mutual authentication is carried out by the information of the ECDS system of the central bank. In the embodiment of the invention, the value transfer between point and point can be directly realized by using the block chain technology without the need of controlling and verifying a specific physical bill or a central system. Due to the characteristics of open source, transparency, tamper resistance and traceability of the block chain technology, customers of the business ticket circle platform can know the operation rules of the business ticket circle platform, verify the authenticity and integrity of the content and the history of the account book, ensure that the transaction history is reliable and is not tampered, improve the traceability of the business ticket circle platform and reduce the trust cost of the business ticket circle platform. The use of the blockchain can achieve de-mediation of bill value delivery without requiring control and verification of a specific physical bill or a central system. In supply chain finance, labor cost can be reduced, safety is improved, and end-to-end transparency can be realized through the block chain. In the future, the supply chain financial business can greatly reduce the manual intervention through the block chain technology. All participants (including suppliers, suppliers and banks) can use a decentralised account book sharing file and automatically pay through intelligent contracts when reaching preset time and result, so that the efficiency is greatly improved, and the loss caused by manual misoperation in transaction can be effectively reduced.

2) On the decentralized platform of the block chain, the region and time limitation does not exist, an asset owner does not need to be limited by transaction time of different banks and different countries, 7-24-hour global transaction is really realized, the role of a transit bank can be abandoned in the block chain in the payment field, and the point-to-point quick cross-border payment with low cost is realized. The platform passing through the blockchain not only can bypass a transfer bank to reduce transfer cost, but also improves the safety of cross-border remittance due to the safe, transparent and low-risk characteristics of the blockchain. Meanwhile, due to the characteristic of decentralized block chain, the settlement and clearing speed can be accelerated so as to improve the utilization rate of funds. Payments may be made in a point-to-point manner between future banks and banks not by third parties but by blockchain techniques. Because the intermediate link of a third-party financial institution is omitted, the all-weather payment and real-time account arrival can be realized, and the method is beneficial to reducing the fund risk of the cross-border e-commerce and meeting the requirements of the cross-border e-commerce on timeliness and convenience of clearing services.

3) The digital assets have the characteristic of being naturally detachable, so that the pain points of whole ticket transfer and whole ticket appearance are avoided.

4) The block chain technology solves the problem of non-falsification and traceability of data from the bottom layer through the principle of cryptography, and a supervision mechanism can conveniently implement accurate and timely supervision on the whole transaction process by utilizing the characteristics. The evidence can be rapidly and accurately acquired in case of after-the-fact accountability. Meanwhile, as the block chain is a peer-to-peer shared account book, the value can be safely and efficiently transferred directly through the block chain, and the characteristics can save a large amount of cost related to clearing and settlement and simplify the flow.

In the embodiment of the invention, the Fabric technology of the blockchain is introduced, and the acceptance draft of the electronic commerce is converted into the digital bill based on the blockchain for circulation by combining the business mode of the business ticket circle. Wherein fabric is a super ledger framework contributed by IBM. It is an implementation of a block chain technique that is combined using existing mature techniques. It is a modular architecture that allows pluggable implementation of various functions. It has powerful container technology to carry intelligent contracts written in various mainstream languages.

As shown in FIG. 2, the fabric network architecture mainly comprises four parts, namely a client node, a CA node, a Peer node and an order node. The fabric is partitioned according to organizations, each organization maintaining peer nodes of different functionality. The orderer nodes belong to the entire federation and generally do not belong to an organization.

Wherein, the CA node functions: members of the Fabric network provide identity information based on digital certificates, which may be generated by third parties.

Client node function: and interacting with the Fabric blockchain to realize the operation of the blockchain. Common client nodes include cli containers and SDK clients. The client node represents the user's entity that must connect to the peer to communicate with the blockchain. The client node may connect to any peer it chooses. The client node creates a transaction.

Peer node function: the fabric contains one or more peer nodes per organization. Each node may assume multiple roles.

Orderer node function: and the sequencing service node receives the transaction containing the endorsement signature, sequences the unpacked transaction to generate a block, and broadcasts the block to the Peer node. The ordering service provides atomic broadcast to ensure that nodes in the same chain receive the same message and have the same logical order.

Wherein, the endorsement node (EndorserPeerPeer) function: and signing endorsements when the transaction proposal is sent to the client node, and the client node plays the role of an endorsement node. Endorsement refers to the process by which a particular Peer node performs a transaction and returns a YES/NO response to the client application that generated the transaction proposal. The endorsement node is a dynamic role, and sets an endorsement strategy when chain codes are instantiated, and specifies which nodes are effective for transaction endorsement. And the endorsement nodes are only used during endorsement, and the ordinary nodes are used at other moments.

Master node (Leader Peer) function: the method is mainly responsible for communicating with the orderer sequencing node, acquiring blocks and synchronizing in the organization. The generation of the master node may be elected or specified dynamically.

Accounting node (CommittePeer) function: and verifying the block and the block transaction, and writing the block into the account book after the verification is passed.

Anchor node (Anchor Peer) function: primarily responsible for communicating with anchor nodes of other organizations.

Wherein, the transaction flow comprises: the client constructs a transaction proposal and sends the proposal to one or more endorsement nodes. The endorsement node simulates to execute the transaction and after the signature endorsement node receives the transaction proposal, the signature is verified and whether the submitter is authorized to execute the operation is determined. The endorsement node takes the parameters of the transaction proposal as input, executes the transaction on the KV database in the current state, generates a transaction result (the book cannot be updated at the moment) comprising an execution return value, a read operation set and a write operation set, and returns the transaction result set, the signature of the endorsement node and the endorsement result (support/rejection) to the client as the result of the proposal. After the client sends the transaction to the ordering service node and receives the information returned by the endorsement node, the client judges whether the proposal result is consistent and whether the proposal result is executed by referring to the appointed endorsement strategy, and if not, the processing is stopped; otherwise, the client packs the data together to form a transaction and signs, and sends the transaction to the Orderers. Consensus sequencing, namely generating a new block and confirming Orderers by a submitting node to perform consensus sequencing on received transactions, then packaging a batch of transactions together according to a block generation strategy to generate a new block, and sending the new block to the submitting node; after the submitting node receives the block, each transaction in the block is checked, whether the input and output which are depended by the transaction are in accordance with the state of the current block chain or not is checked, the block is added to the local block chain after the check is finished, and the world state is modified.

In one embodiment, a block chain based digital instrument trading method is provided, which comprises the following steps:

the digital instrument transfer transaction is performed through a blockchain.

For specific definition of the block chain based digital bill transaction method, reference may be made to the above definition of the block chain based digital bill transaction system, and details are not repeated here.

In one embodiment, a computer device is provided, which may be a server, the internal structure of which may be as shown in fig. 3. The computer device includes a processor, a memory, a network interface, and a database connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The database of the computer device is used for storing data. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a blockchain-based digital instrument trading method.

Those skilled in the art will appreciate that the architecture shown in fig. 3 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.

In one embodiment, a computer device is provided, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program:

the digital instrument transfer transaction is performed through a blockchain.

In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:

the digital instrument transfer transaction is performed through a blockchain.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A blockchain-based digital ticket trading system, comprising: business ticket circle platform and block chain;

and the block chain executes the digital bill transfer transaction.

2. The digital ticket trading system of claim 1, wherein the merchant ticket ring platform is configured to,

3. The digital ticket transaction system of claim 2, wherein performing the digital ticket transfer transaction comprises:

4. The digital ticket trading system of claim 3, wherein the merchant ticket ring platform is configured to,

5. The digital ticket trading system of claim 1, wherein the merchant ticket ring platform is configured to:

6. The digital ticket trading system of claim 5, wherein the merchant ticket circle platform sends an equivalent digital ticket and corresponding originating information to the blockchain after issuing a digital ticket equivalent to a ticket that accepts a draft; and calling an intelligent contract by the block chain, issuing asset information of the equivalent digital bill and the corresponding initiator information, and writing the asset information into the block chain.

7. The digital ticket trading system of claim 6, wherein after the asset information is written into the blockchain, the blockchain sends a release success message to the initiator.

8. A block chain-based digital bill transaction method is characterized by comprising the following steps:

the digital instrument transfer transaction is performed through a blockchain.

9. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the steps of the method of claim 8 are performed when the computer program is executed by the processor.

10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method as claimed in claim 8.