CN109345194A - A kind of electronic bill flow system - Google Patents
A kind of electronic bill flow system Download PDFInfo
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Abstract
The present invention is suitable for block chain technical field, provides a kind of electronic bill flow system, is applied in block chain, comprising: supervisory node, make out an invoice node and reimbursement node；Supervisory node, for managing the access and permission of the node of making out an invoice；It makes out an invoice node, for issuing electronic bill in response to request of making out an invoice, and electronic bill write-in is currently made out an invoice and node and carries out the whole network and makes out an invoice broadcast；Node is submitted an expense account, carries out reimbursement label and the whole network reimbursement broadcast for receiving and verifying the electronic bill of node broadcasts of making out an invoice, and to the electronic bill being verified.Electronic bill flow system of the invention establishes the life cycle of electronic bill on circulation ecological chain, form the trust authentication mechanism based on block chain, the multicenter chain that supervisory node is dominated, pass through diversification, open supervision flowing mode, security of system and reliability can be improved, and it runs and supervises at low cost, it is not easy the problems such as duplicating guarantee during whole service, supervisory efficiency is high.
Description
Technical field
The invention belongs to block chain technical field more particularly to a kind of electronic bill flow systems.
Background technique
Bill is the one kind used in currency or chains of commodity flow to embody credits, the generation of debt, transfer and reimbursemen
Credit instruments, the payment and settlement and enterprise's short fund that can be used in trade.On the one hand, acceptance of checks link can be corporate payments
Clearing provide convenience；On the other hand, the mode of doing business with endorsement and discount for representative can be that real economy is especially
Medium-sized and small enterprises provide convenient and fast credit extending channel.By previous real example data analysis found that acceptance of checks remaining sum, the amount of honouring, patch
Now there are significant positive correlations with real economy index for amount, it is seen that bill has important in terms of support entity economic development
Effect.Meanwhile as a kind of credit instruments, bill business system is also the important component of social credit system.
With the fast development of bill, will be used wider and wider, number of users it is more and more, overlay electronic commercial affairs,
The industries such as public utilities, banking and insurance business, mobile communication, the super chain, Express Logistics of quotient, service for life, electronic invoice it is extensive
It uses, not only brought the significant increase of efficiency for enterprise, but also challenge is proposed to the safety of bill circulation process.
Existing bill mainly has paper-bill and electronic bill, and paper-bill is to utilize enterprise, silver using special paper
Row official seal honours the bill of voucher and street certificate as drawing a bill.It is poor in the safety of intermediate links, paper-bill, entire
In operating environment, it is easy to appear a series of safety issues such as clone, duplication, a ticket oversold.And electronic bill is then mainly
Registration, the circulation business of bill are carried out by the registration that monitoring party provides centralization.During the operation management of centralization, by
In the circulation platform for lacking effective supervision and unified standard, the bill mediation agent of many irregularities is caused to exist, and they
Violation transaction allow and remain incessant after repeated prohibition the problems such as a such as ticket oversold；Bill market information asymmetry, bill business inefficiency are handed over
Easy cost and audit are with high costs；And attack is easily met with, data can be tampered, and security of system and reliability are low；Reconciliation work
Make it is cumbersome, supervise it is with high costs.
It can be seen that existing bill flowing mode relies on data center, with high costs, supervisory efficiency is runed and supervised
Lowly, and in whole service environment it is easy to appear the problems such as repetition is rendered an account, and easily meets with attack, data can be tampered, system
Safety and reliability it is low.
Summary of the invention
The embodiment of the present invention provides a kind of electronic bill flow system, it is intended to solve existing bill flowing mode and rely on number
According to centralization, run and supervise with high costs, supervisory efficiency is low, and is easy to appear repetition in whole service environment and renders an account
Problem, and attack is easily met with, data can be tampered, the low problem of the safety and reliability of system.
The embodiments of the present invention are implemented as follows, a kind of electronic bill flow system, is applied in block chain, the system
It include: supervisory node, make out an invoice node and reimbursement node；
The supervisory node, for managing the access and permission of the node of making out an invoice；
The node of making out an invoice for issuing electronic bill in response to request of making out an invoice, and electronic bill write-in is currently made out an invoice
It node and carries out the whole network and makes out an invoice broadcast；
The reimbursement node, for receiving and verify the electronic bill of the node broadcasts of making out an invoice, and to being verified
Electronic bill carries out reimbursement label and the whole network reimbursement broadcast.
Electronic bill flow system provided in an embodiment of the present invention, including supervisory node, make out an invoice node and reimbursement node, prison
Pipe node can manage the access and permission for joining the node of making out an invoice of block chain main chain, improve the safety and quality prison of node of making out an invoice
Pipe, it is ensured that the reliability for node of making out an invoice；Node of making out an invoice may be in response to Client-initiated request of making out an invoice and issue corresponding electronic bill,
And by the current node of making out an invoice of electronic bill write-in, and carries out the whole network and make out an invoice broadcast, so that information comes into the open, transparence,
The generation for phenomena such as can effectivelying prevent a ticket oversold improves the reliability of electronic bill circulation；Reimbursement node can receive and test
The electronic bill for node broadcasts of making out an invoice is demonstrate,proved, and reimbursement label and the whole network reimbursement broadcast are carried out to the electronic bill being verified, it can
It effectively avoids the problem that repeating to render an account.This system establishes the life cycle of electronic bill on circulation ecological chain, and formation is based on
The leading multicenter chain of the trust authentication mechanism of block chain, supervisory node, passes through diversification, open supervision circulation side
Formula, can be improved security of system and reliability, and run and supervise at low cost, be not easy to duplicate guarantor during whole service
The problems such as barrier, supervisory efficiency are high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the electronic bill flow system that the embodiment of the present invention one provides；
Fig. 2 is the structural schematic diagram of electronic bill flow system provided by Embodiment 2 of the present invention；
Fig. 3 is that assistance provided in an embodiment of the present invention node node of assisting to make out an invoice of making out an invoice issues the flow chart of electronic bill；
Fig. 4 is the structural schematic diagram for the electronic bill flow system that the embodiment of the present invention three provides；
Fig. 5 is the structural schematic diagram for the electronic bill flow system that the embodiment of the present invention four provides；
Fig. 6 is the application schematic diagram submitted an expense account node and apply electronic bill flow system provided by the invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The term used in embodiments of the present invention is only to be not intended to be limiting merely for for the purpose of describing particular embodiments
The present invention.Packet is also intended in the "an" and "the" of the embodiment of the present invention and singular used in the attached claims
Most forms are included, unless the context clearly indicates other meaning.It is also understood that term "and/or" used herein
Refer to and includes that one or more associated any or all of project listed may combine.
Electronic bill flow system provided in an embodiment of the present invention establishes the life cycle of electronic bill in circulation ecology
On chain, the leading multicenter chain of trust authentication mechanism based on block chain, supervisory node is formed, by diversification, open
Supervision flowing mode, can be improved security of system and reliability, and run and supervise at low cost, do not allow during whole service
The problems such as easily duplicating guarantee, supervisory efficiency are high.
Fig. 1 shows the structure of the electronic bill flow system of the offer of the embodiment of the present invention one, for ease of description, in figure
Only parts related to embodiments of the present invention are shown, and details are as follows:
Electronic bill flow system provided in an embodiment of the present invention is applied in block chain, and block chain has decentralization, credible
The advantages that appointing, be traceable.It is based on cryptological technique, records each transaction by specific algorithm, transaction it is each
A subsequent variation can create another data block in connection and retrospective chain downstream, and transaction each
Link all replicates transaction data whole in certain time, reliability with higher and safety in real time, keeps transaction data several
It can not be forged or destroy.
In embodiments of the present invention, which includes: supervisory node 100, make out an invoice node 200 and reimbursement node 300.
Wherein, supervisory node 100, for managing the access and permission of node 200 of making out an invoice.
In embodiments of the present invention, supervisory node 100 can be revenue department's node (i.e. control side).Revenue department is government
Component part, be national important component, major responsibility is management state tax revenue, including the State Tax Administration and local tax
Business office.It is provided according to China's Management Act for Tax Collection, the tax authority is responsible for invoice printing, neck is purchased, issued, obtaining, taking care of, revoking
Supervision and oversight.The tax authority realizes the unified and standard of levying by tax by managing bill.
In embodiments of the present invention, supervisory node 100 can be deployed on the main chain of block chain, and be added to node 200 of making out an invoice
Block chain main chain of the alliance where it carries out the control of access authentication and its permission, has standardized the mechanism of permitting the entrance for node 200 of making out an invoice, and
And reduce the fake and forged agent that makes out an invoice and disorderly enter market of making out an invoice, the risk of operation is reduced, node 200 of making out an invoice is improved
Security reliability.Meanwhile supervision and operation on the same block chain alliance chain, it can be achieved that the disclosure of supervision operation information, thoroughly
Brightization, synchronizing information update, and data can be prevented to be tampered, and further increase the safe and reliable of electronic bill circulation process
Property.Meanwhile this also breaks traditional data silo, realizes the decentralization transmitting of electronic bill information, reduces operation and behaviour
The risk of work improves management efficiency, promotes the optimization of tax revenue business environment.
In embodiments of the present invention, supervisory node 100 limits node 200 of making out an invoice by control interface service access permission
Access and operating right.
It makes out an invoice node 200, currently makes out an invoice section for issuing electronic bill in response to request of making out an invoice, and by electronic bill write-in
It point 200 and carries out the whole network and makes out an invoice broadcast.
In embodiments of the present invention, it makes out an invoice node 200, i.e. seller (is issued service provider for electronic bill, including opened
Ticket enterprise etc.), including supermarket, general merchandise, company and enterprise etc..
In embodiments of the present invention, node 200 of making out an invoice may be in response to user (i.e. purchaser, including individual etc.) typing and open
Ticket request, and corresponding electronic bill is issued according to the request of making out an invoice.It include title, the purchase of purchaser in general request of making out an invoice
Product name, commodity amount, the commodity price, time buying, the contact method of purchaser, bank's card number, identifier of paying taxes bought
(such as identification card number) information.Node 200 of making out an invoice according to above-mentioned request of making out an invoice issues corresponding electronic bill.Wherein, the electronics
It include seller Taxpayer Identification Number, seller title, seller address, phone, seller Bank Account Number, purchaser in bill
Taxpayer Identification Number, purchaser's title, purchaser address, phone, purchaser's Bank Account Number, drawer, payee, review people,
Original invoice code, primary ticket number, valence tax are total, Amount in Total, total amount of tax to be paid, remarks, control device numbering, invoice codes, hair
Ticket number, date of making out an invoice, invoice ciphertext, invoice check code, two dimensional code, project name, measurement unit, specifications and models, item number
The information such as amount, project unit price, item amount, the tax rate, the amount of tax to be paid.
In embodiments of the present invention, the information such as the electronic bill issued are packaged by node 200 of making out an invoice, and are written current
It makes out an invoice in node block, while carrying out the whole network broadcast, so that each node on block chain knows the situation of making out an invoice of the electronic bill,
Realize that data are synchronous.
Node 300 is submitted an expense account, for receiving and verifying the electronic bill of the broadcast of node 200 of making out an invoice, and to the electricity being verified
Sub- bill carries out reimbursement label and the whole network reimbursement broadcast.
In embodiments of the present invention, reimbursement node 300 is drawee party (including company and enterprise or mechanism etc.), be can receive simultaneously
The electronic bill of node 200 of making out an invoice broadcast, and the electronic bill is verified, the electronic bill being verified is submitted an expense account
Label (for example, to the reimbursement state of electronic bill (including submitted an expense account, do not submit an expense account, submit an expense account it is medium) be marked), carry out simultaneously
The whole network reimbursement broadcast, can effectively avoid the problem of repetition is rendered an account, and be conducive to maintain the normalization of electronic bill circulation and safety can
By property.
Electronic bill flow system provided in an embodiment of the present invention, including supervisory node, make out an invoice node and reimbursement node, prison
Pipe node can manage the access and permission for joining the node of making out an invoice of block chain main chain, improve the safety and quality prison of node of making out an invoice
Pipe, it is ensured that the reliability for node of making out an invoice；Node of making out an invoice may be in response to Client-initiated request of making out an invoice and issue corresponding electronic bill,
And by the current node of making out an invoice of electronic bill write-in, and carries out the whole network and make out an invoice broadcast, so that information comes into the open, transparence,
The generation for phenomena such as can effectivelying prevent a ticket oversold improves the reliability of electronic bill circulation；Reimbursement node can receive and test
The electronic bill for node broadcasts of making out an invoice is demonstrate,proved, and reimbursement label and the whole network reimbursement broadcast are carried out to the electronic bill being verified, it can
It effectively avoids the problem that repeating to render an account.This system establishes the life cycle of electronic bill on circulation ecological chain, and formation is based on
The leading multicenter chain of the trust authentication mechanism of block chain, supervisory node, passes through diversification, open supervision circulation side
Formula, can be improved security of system and reliability, and run and supervise at low cost, be not easy to duplicate guarantor during whole service
The problems such as barrier, supervisory efficiency are high.
Fig. 2 shows the structures of electronic bill flow system provided by Embodiment 2 of the present invention, for ease of description, in figure
Only parts related to embodiments of the present invention are shown, and details are as follows:
The embodiment of the present invention is similar to embodiment one, the difference is that: the system further includes assisting node 400 of making out an invoice, and is used
Electronic bill is issued in the above-mentioned node 200 of making out an invoice of assistance.
Specifically, node 400 of assisting to make out an invoice is for verifying whether above-mentioned node 200 of making out an invoice is registered account；If so,
Electronic bill is issued in response to the request of making out an invoice for making out an invoice the transmission of node 200, and marks its identity information on the electronic bill.
In one embodiment of the invention, node 200 of making out an invoice to assistance node 400 of making out an invoice submits enterprises registration to, at this point,
Assistance node 400 of making out an invoice can be that it generates an account of making out an invoice, the wherein account of making out an invoice according to the registration request for node 200 of making out an invoice
Create-rule can be make out an invoice nodename+Taxpayer Identification Number (ID card No.), i.e., a pair of of public key and private key.Wherein, public
Key can be the address information of node 200 of making out an invoice, and for encrypting electronic bill caused by node 200 of making out an invoice, and private key is then used for
Confirm the ownership of its electronic bill generated.
In another embodiment of the invention, assist make out an invoice node 400 be make out an invoice node 200 generate account of making out an invoice rule
Then it may also is that nodename of making out an invoice+address phone/Bank Account Number etc., as long as can uniquely determine this makes out an invoice node 200 i.e.
Can, it is not limited here.
Public key and private key are the key pairs (i.e. a public key and a private key) obtained by a kind of algorithm, and public key is
Part disclosed in cipher key pair, private key are then private parts.Public key is commonly used in encrypted session key, verifying number label
Name, or the data that encryption can be decrypted with corresponding private key.It can guarantee by the key pair that this algorithm obtains in world wide
It is inside unique.When using this key pair, if encrypting one piece of data with one of key, it is necessary to close with another
Key decryption.For example must just be decrypted with private key with public key encryption data, if must also use public key decryptions with private key encryption, otherwise
Decryption will not succeed.
In conjunction with Fig. 3, in embodiments of the present invention, the assistance assistance of node 400 node 200 of making out an invoice of making out an invoice issues electronic bill
Detailed process is as follows:
In step S101, the electronic bill for receiving node transmission of making out an invoice issues request.
In embodiments of the present invention, when the electronic bill for receiving the transmission of node 200 of making out an invoice issues request, to section of making out an invoice
200 progress identification check of point specifically verifies whether the node 200 of making out an invoice is registered account.
In step s 102, request is issued according to electronic bill, issues corresponding electronic bill, and on the electronic bill
Mark its identity information.
In embodiments of the present invention, if verifying result is to make out an invoice node 200 currently as registered account, then its hair is responded
The electronic bill sent issues request, issues corresponding electronic bill, and marks its identity information (as serviced on the electronic bill
Quotient's title etc.).
Specifically, can pass through when the electronic bill for receiving the transmission of node 200 of making out an invoice issues request (such as sales order)
It makes out an invoice software transfer tax controlling equipment, generates electronic bill code, note number etc., and generate electronic bill and layout files,
Complete issuing for electronic invoice.
In step s 103, the electronic bill cochain request for receiving requesting party, carries out node authentication according to the request.
In embodiments of the present invention, the electronic bill cochain request of requesting party is received, and the node that requesting party provides is believed
Breath, token information and the service of request carry out legitimacy verifies.Specifically, node authentication includes whether examining the requesting party
By registered account, company information whether within legal validity period and whether verifying present node has requesting party and request
Service Privileges etc..
In step S104, judge whether requesting party is registered drawee party.
It in embodiments of the present invention, can be by judging that the registration information of requesting party is made out an invoice node with the presence or absence of current assistance
200。
In embodiments of the present invention, the registration information of login account is storable in supervisory node 100.
In step s105, if the determination result is YES, then cochain is carried out to electronic bill, and carries out the whole network broadcast.
In embodiments of the present invention, carrying out cochain to electronic bill is specially by seller Taxpayer Identification Number, seller
Title, seller address, phone, seller Bank Account Number, purchaser's Taxpayer Identification Number, purchaser's title, purchaser address,
Phone, purchaser's Bank Account Number, drawer, payee, review people, original invoice code, primary ticket number, valence tax are total, total
The amount of money, total amount of tax to be paid, remarks, control device numbering, invoice codes, invoice number, the date of making out an invoice, invoice ciphertext, invoice check code,
Two dimensional code, project name, measurement unit, specifications and models, the number of entry, project unit price, item amount, the tax rate, the amount of tax to be paid, PDF lattice
The URL of formula；Business datum is stored in HashMap object and is packaged simultaneously as transaction description content these contents in block
Block is written.
In embodiments of the present invention, supervisory node 100 is also used to manage the assistance and makes out an invoice the access and permission of node 400.
In embodiments of the present invention, 100 pairs of supervisory node nodes 400 of assisting to make out an invoice join the block chain main chain where it into
Row access authentication and access, the control of operating right.The node of node 400 specifically, supervisory node 100 can make out an invoice to assistance
(storage of finger joint point is held for matter (such as belonging to revenue department, invoice service provider or enterprise of making out an invoice to be verified), node size
Amount, running memory etc.), node data permission (such as whether have certain (a little) data access or modification delete etc. permissions), section
Point Service Privileges (such as allow to inquire a certain (a little) data, transmission data) etc. are checked and approved, and are made out an invoice node to the assistance
400 publication access digital certificates are as the token for joining block chain main chain, and by the nodal information (including node ID, node
IP, node port, node certificate, nodal community etc.) it is put on record.
In embodiments of the present invention, node 400 of making out an invoice is assisted then to join supervision according to the access digital certificate got
Block chain main chain where node 100.
In embodiments of the present invention, above-mentioned supervisory node 100 is specifically used for: the node qualification for node 200 of making out an invoice is veritified, to
It veritifies the node 200 of making out an invoice passed through and issues access digital certificate, and authorize make out an invoice node 200 access and operating right accordingly.
Wherein, node qualification includes that node property (such as belongs to revenue department, invoice service provider or makes out an invoice enterprise's progress
Verify), node size (memory capacity, running memory of finger joint point etc.), node data permission is (such as whether there is certain (a little) data
Access or modification the permissions such as delete), node serve permission (such as allow to inquire a certain (a little) data, transmission data) etc..
In embodiments of the present invention, above-mentioned node 200 of making out an invoice is specifically used for: the access number issued according to supervisory node 100
Word certificate joins block chain main chain, issues electronic bill in response to Client-initiated request of making out an invoice, and electronic bill write-in is worked as
Before make out an invoice and node and carry out the whole network and make out an invoice broadcast.
In embodiments of the present invention, node 200 of making out an invoice issues the process of electronic bill and assistance is made out an invoice, and node issues electronics
The process of bill is similar, the difference is that only: its identity information is not marked on electronic bill.
In practical applications, after the completion of electronic bill is issued, the processing step for carrying out cochain to electronic bill is as follows: a,
Block chain backstage carries out assembling cochain business datum；B, electronic bill encrypts；C, purchaser's title+purchase is passed through to purchaser's information
Buyer's Taxpayer Identification Number (ID card No.) generates unique account (public and private key)；D, set of electronic ticket transactions data, hair are assembled
The public key address, the public key address that target side is purchaser and the exchange hour that play square node of making out an invoice, odd numbers etc. of trading；E, it adjusts
With block chain transactional services；F, block chain backstage verification Service Privileges；G, electronic bill is submitted to trading pit by block chain backstage；
H, block chain backstage verifies All Activity, is known together, is packaged, broadcasting other nodes.
Fig. 4 shows the structure of the electronic bill flow system of the offer of the embodiment of the present invention three, for ease of description, in figure
Only parts related to embodiments of the present invention are shown, and details are as follows:
The present embodiment is similar to embodiment one, the difference is that, the system further include: technical support node 500, for building
Block platform chain and visualization multinode management application system if electronic bill circulates.
In embodiments of the present invention, technical support node 500 is specifically used for: being based on block chain Floor layer Technology, encapsulates RPC's
API, and using the block platform chain of nodejs language development calling layer interface service construction bill data circulation；Using j2ee's
The mode of MVC builds visualization multinode management application system.
Wherein, API is Application Programming Interface, is exactly the agreement of software systems difference component part linking.
In embodiments of the present invention, the service that the block platform chain that technical support node 500 constructs provides is related to: authentication pipe
Reason, account book management, consensus management, account management, intelligent contract administration etc.；The visualization multinode management application system built
Function includes: node authorization (member management), enterprises registration (registration for node of such as making out an invoice), Transaction Inquiries, block chain service
Management and authorization.
In practical applications, the mode intersected using central database (database of supervisory node)+block chain, is built more
Node mechanism of control, specifically, construction based on supervisory node (revenue department) centre data can multinode management application system,
The application of block chain is visualized；And authorization access is carried out to each node of access block chain, to electronic bill related side
(such as seller, drawee party) carries out the registration of account on block chain；To information inquiry of the electronic bill on block chain (such as electricity
Ticket information, reimbursement information of sub- bill etc.)；To the authorization control for calling the service of block chain.Meanwhile realizing block chain application layer
Service interface call permission control, including Node registry, node authentication, node authorization, consensus management, account book management, intelligence
Contract administration.
In a preferred embodiment of the invention, reimbursement node 300 can not be deployed on the block chain main chain, but
The verification of electronic bill is completed using the service of node 200 offer trusty on autonomous selection block chain main chain of making out an invoice, is obtained
Take electronic bill list and carry out reimbursement operation etc..
Fig. 5 shows the structure of the electronic bill flow system of the offer of the embodiment of the present invention four, for ease of description, in figure
Only the parts related to this embodiment are shown, and details are as follows:
The present embodiment is similar to embodiment two, the difference is that: the system further include: technical support node 500, for building
Block platform chain and visualization multinode management application system if electronic bill circulates.
In embodiments of the present invention, the overall architecture of electronic bill flow system includes: revenue department (control side), block
Chain service provider (technical support side), enterprise of making out an invoice (provider), by ticket enterprise (consumer) and invoice service provider (provider).
The Major Function of revenue department includes node authorization (such as make out an invoice node and assist the authorization access of node of making out an invoice), supervision, enterprise
The permission of registration and Transaction Inquiries.The function of block chain service provider is that block chain technological service is provided for nodes such as revenue departments
(including construction block platform chain, construction visual application system).Enterprise make out an invoice with electronic bill inquiry, electronic bill cochain
Permission.There is the permission checked electronic bill and submitted an expense account by ticket enterprise.Invoice service provider have electronic bill cochain,
The permission of electronic bill inquiry and enterprises registration.
In embodiments of the present invention, integrated planning, building prison are carried out to the node being related in electronic invoice life cycle
Pipe node (such as revenue department) assists make out an invoice node (such as electronic third-party invoice service provider), technical support node (such as block chain
Technological service quotient), node of making out an invoice (enterprise of such as making out an invoice) and submit an expense account node (such as by ticket enterprise) " five in one " electronic invoice
The entire circulation process of electronic bill can be together in series, reach the synchronization and open and clearization of information by nascent state system, drop
It is low duplicated in each intermediate links render an account, a ticket oversold, the risks such as data tampering incidence, it is whole to improve electronic bill
Circulation security reliability, build a good bill and circulate ecological environment, promote the harmonious development of social economy.
In embodiments of the present invention, above-mentioned reimbursement node 300 is specifically used for: the current reimbursement node 300 of verifying whether there is
With the consistent private key of electronic bill for the broadcast of node 200 of making out an invoice；
Consistent private key if it exists carries out reimbursement label to electronic bill then based on Byzantine failure tolerance mechanism PBFT common recognition mechanism
It submits an expense account and broadcasts with the whole network.
In embodiments of the present invention, private key is the ownership for confirming electronic bill, can be the identity card of taxpayer
Number, bank's card number, phone etc. can uniquely determine the information of its identity.
In embodiments of the present invention, PBFT algorithm was proposed by Miguel Castro and Barbara Liskov in 1999,
Original intention is to be overlapped to solve the problems, such as compliance in distributed system with the target of block chain common recognition mechanism, main special
Point is that network has Error Tolerance, and in the network that one has 3f+1 node, failure node number is f, and network still can
It operates normally, serious forgiveness is close to 33%.
Front yard fault tolerant mechanism imported view (View) and verify node (replica) concept, replica include host node and
Backup node.Host node (primary) is chosen according to some formula, and after choosing well, other replica nodes just become backup
(backups) node.
Elaborated for making out an invoice node in block chain and realizing common recognition below: 1) node 200 of making out an invoice is by electronic ticket
Service request is initiated according to monitoring node 100, a serial number n is compiled to request, then sends information, information to all backup nodes
Format is<<PRE-PREPARE, v, n, d>, m>, v is view number, and m is the solicited message that client is sent, and d is the abstract of m；
2) monitoring node 100 is sent to all backup nodes prepares message<PREPARE, v, n, and d, i>, i is node serial number；3) backup section
Result is all returned to node 200 of making out an invoice by point after having handled；4) as long as node 200 of making out an invoice receives f+1 node feeding back
Identical result is final result.
In a preferred embodiment of the invention, reimbursement node 300 is specifically used for: autonomous selection receives and verifies block
The electronic bill of certain node broadcasts of making out an invoice on chain main chain, and reimbursement label and the whole network report are carried out to the electronic bill being verified
Pin broadcast.
In embodiments of the present invention, reimbursement node 300 can not be deployed on block chain main chain, but use autonomous selection
The mode node 200 of making out an invoice that selects it to trust carry out the verification of electronic bill, obtain electronic bill list, and carry out corresponding
Status indication and the whole network broadcast are submitted an expense account, the selection dynamic role of reimbursement node 300 is improved, meets the individual demand of user.
In conjunction with Fig. 6, in embodiments of the present invention, node 300 is submitted an expense account because not being deployed on block chain main chain node, and buy
The main user of mode electronic bill, therefore node list all on block chain main chain can be provided to reimbursement node 300, clearly
Introduction is described in detail to each node on single, position, affiliated person, the service of offer, API explanation including illustrating node
Deng electronic bill can be obtained by 300 unrestricted choice of reimbursement node node trusty or setting default node, and complete to this
The operation such as verification, reimbursement of electronic bill.
In embodiments of the present invention, node 300(, that is, purchaser is submitted an expense account) its purchaser's information (such as purchaser's title can be passed through
+ Taxpayer Identification Number (such as identification card number)) the address Token obtain block chain in set of electronic ticket transactions data.Wherein should
Set of electronic ticket transactions data include: trading rules version, exchange hour, counterparty, transaction content information (invoice codes, invoice
Number, invoicing time, Amount in Total, drawee party, seller etc.) etc..
In embodiments of the present invention, the set of electronic ticket transactions data that reimbursement node 300 obtains in block chain include two parts:
1. obtaining the true and false of invoice by the fundamental (invoice codes, the date of making out an invoice, are free of tax volume at invoice number) of invoice, i.e.,
Verification；2. obtaining all invoice schedules and the list of the purchaser by the block chain account of purchaser.
In embodiments of the present invention, the form for obtaining electronic bill has visual application function, including invoice examination is answered
Application is obtained with, invoice unanimous vote, invoice reimbursement label is submitted and inquiry etc.；And interface service, including invoice query interface, hair
Ticket unanimous vote face obtains interface, invoice reimbursement submits interface, invoice to submit an expense account query interface etc..
In embodiments of the present invention, the concrete mode that reimbursement node 300 submits an expense account electronic bill can are as follows: by visual
Change application, after block chain background authentication authorization, invoice is directly marked to submit an expense account or partially submitted an expense account；Pass through service interface
Form and have a reimbursement system docking, seamless label reimbursement invoice.
Electronic bill flow system of the invention establishes the life cycle of electronic bill on circulation ecological chain, forms base
In the leading multicenter chain of the trust authentication mechanism of block chain, supervisory node, pass through diversification, open supervision circulation side
Formula, can be improved security of system and reliability, and run and supervise at low cost, be not easy to duplicate guarantor during whole service
The problems such as barrier, supervisory efficiency is high, has very big commercial value.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of electronic bill flow system, which is characterized in that it is applied in block chain, the system comprises: supervisory node is opened
Ticket node and reimbursement node；
The supervisory node, for managing the access and permission of the node of making out an invoice；
The node of making out an invoice for issuing electronic bill in response to request of making out an invoice, and electronic bill write-in is currently made out an invoice
It node and carries out the whole network and makes out an invoice broadcast；
The reimbursement node, for receiving and verify the electronic bill of the node broadcasts of making out an invoice, and to being verified
Electronic bill carries out reimbursement label and the whole network reimbursement broadcast.
2. electronic bill flow system as described in claim 1, which is characterized in that the system also includes: assist section of making out an invoice
Point, for assisting the node of making out an invoice to issue electronic bill.
3. electronic bill flow system as claimed in claim 2, which is characterized in that the supervisory node is also used to manage described
Assist the make out an invoice access and permission of node.
4. electronic bill flow system as claimed in claim 1 or 2, which is characterized in that the system also includes: technical support
Node, for building electronic bill circulation block platform chain and visualization multinode management application system.
5. electronic bill flow system as described in claim 1, which is characterized in that the supervisory node is specifically used for: veritifying
The node qualification of the node of making out an invoice, the node publication access digital certificate of making out an invoice passed through to veritification, and authorize the section of making out an invoice
The corresponding access of point and operating right.
6. electronic bill flow system as claimed in claim 5, which is characterized in that the node of making out an invoice is specifically used for: according to
The access digital certificate joins block chain main chain, issues electronic bill in response to request of making out an invoice, and the electronic bill is write
Enter currently to make out an invoice and node and carries out the whole network and make out an invoice broadcast.
7. electronic bill flow system as claimed in claim 2, which is characterized in that the assistance node of making out an invoice is specifically used for:
Whether node of making out an invoice described in verification is registered account；
If so, issuing electronic bill in response to the request of making out an invoice for making out an invoice node transmission, and in the electronic bill subscript
Remember its identity information.
8. electronic bill flow system as described in claim 1, which is characterized in that the reimbursement node is specifically used for: verifying
Current reimbursement node is with the presence or absence of the consistent private key of the electronic bill with the node broadcasts of making out an invoice；
Consistent private key if it exists submits an expense account the electronic bill then based on Byzantine failure tolerance mechanism PBFT common recognition mechanism
Label and the whole network reimbursement broadcast.
9. electronic bill flow system as claimed in claim 4, which is characterized in that the technical support node is specifically used for:
Based on block chain Floor layer Technology, the API of RPC is encapsulated, and bill number is built using nodejs language development calling layer interface service
According to the block platform chain of circulation；
Visualization multinode management application system is built using the mode of the MVC of j2ee.
10. electronic bill flow system as described in claim 1, which is characterized in that the reimbursement node is specifically used for: autonomous
Selection receives and verifies the electronic bill of certain node broadcasts of making out an invoice on block chain main chain, and to the electronic ticket being verified
It is broadcasted according to reimbursement label and the whole network reimbursement is carried out.
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| CN201811059617.5A CN109345194A (en) | 2018-09-12 | 2018-09-12 | A kind of electronic bill flow system |
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|---|---|---|---|
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| CN110189184A (en) * | 2019-04-26 | 2019-08-30 | 深圳市智税链科技有限公司 | A kind of electronic invoice storage method and device |
| CN110276003A (en) * | 2019-06-05 | 2019-09-24 | 上海票据交易所股份有限公司 | Bill querying method and device based on information registration |
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| CN112581197A (en) * | 2019-07-31 | 2021-03-30 | 创新先进技术有限公司 | Bill number distribution method and device based on block chain and electronic equipment |
| US10963854B2 (en) | 2019-07-31 | 2021-03-30 | Advanced New Technologies Co., Ltd. | Blockchain-based electronic bill reimbursement method, apparatus, and electronic device |
| CN110472914A (en) * | 2019-08-15 | 2019-11-19 | 上海天地汇供应链科技有限公司 | A kind of invoice management method and system based on block chain |
| CN110417917A (en) * | 2019-08-26 | 2019-11-05 | 京东数字科技控股有限公司 | Method, system, computer equipment and medium for bill circulation |
| CN110599272B (en) * | 2019-09-20 | 2024-05-14 | 腾讯科技（深圳）有限公司 | Method for issuing electronic invoice and related products |
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| CN110599272A (en) * | 2019-09-20 | 2019-12-20 | 腾讯科技（深圳）有限公司 | Method for issuing electronic invoice and related product |
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| WO2021139544A1 (en) * | 2020-01-08 | 2021-07-15 | Alipay Labs (singapore) Pte. Ltd. | Methods and devices for mitigating invoice financing fraud |
| WO2021139391A1 (en) * | 2020-01-08 | 2021-07-15 | Alipay Labs (singapore) Pte. Ltd. | Methods and devices for mitigating invoice financing fraud |
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| CN112150150B (en) * | 2020-09-30 | 2023-08-08 | 重庆市科学技术研究院 | Electronic ticket transaction system and method based on blockchain |
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| CN112488707B (en) * | 2020-11-24 | 2023-06-23 | 泰康保险集团股份有限公司 | Business circulation supervision method and system |
| CN112769781A (en) * | 2020-12-29 | 2021-05-07 | 航天信息股份有限公司 | Financial electronic bill making method and system supporting offline mode |
| CN112434114B (en) * | 2021-01-26 | 2021-07-02 | 腾讯科技（深圳）有限公司 | Electronic bill processing method, electronic bill processing device, electronic bill processing medium, and electronic apparatus |
| CN112434114A (en) * | 2021-01-26 | 2021-03-02 | 腾讯科技（深圳）有限公司 | Electronic bill processing method, electronic bill processing device, electronic bill processing medium, and electronic apparatus |
| CN113611052A (en) * | 2021-07-02 | 2021-11-05 | 南京华设云信息技术有限公司 | Electronic invoice printing system based on electric power internet of things |
| CN114978507A (en) * | 2022-05-26 | 2022-08-30 | 福建博思软件股份有限公司 | Electronic bill block chain networking method, device, terminal and storage medium |
| CN116245622A (en) * | 2023-05-06 | 2023-06-09 | 布比（北京）网络技术有限公司 | Block chain-based production and fusion service system and method and electronic equipment |
| CN116797376A (en) * | 2023-08-26 | 2023-09-22 | 杭州字节方舟科技有限公司 | Asset management method, system, server and storage medium based on block chain |
| CN116797376B (en) * | 2023-08-26 | 2023-12-01 | 杭州字节方舟科技有限公司 | Asset management method, system, server and storage medium based on block chain |
| CN117035890B (en) * | 2023-10-09 | 2024-02-06 | 国能(北京)商务网络有限公司 | Transaction security method, device, system, medium and equipment of electronic invoice |
| CN117035890A (en) * | 2023-10-09 | 2023-11-10 | 国能(北京)商务网络有限公司 | Transaction security method, device, system, medium and equipment of electronic invoice |
| CN117635348A (en) * | 2023-11-29 | 2024-03-01 | 中国人寿保险股份有限公司山东省分公司 | Electronic bill insurance claim risk control method based on blockchain technology |
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