CN110532238A - Contract management system and method based on block chain technology - Google Patents
Contract management system and method based on block chain technology Download PDFInfo
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Abstract
The invention discloses a kind of contract management systems based on block chain technology, including the file producer, client and EOS system, the EOS system includes super node and IPFS distributed file system, the client is connect with the super node, the super node is connect with the IPFS distributed file system, the file producer uploads electronic contract into the IPFS distributed file system by client, and it gets the unique hash value of file, file reader or file download person and downloading file is requested to the super node according to the hash value.The invention further relates to a kind of measure of managing contract based on block chain technology.Implement the contract management system and method for the invention based on block chain technology, has the advantages that the permanently storing of certifiable contract documents, the authenticity of contract of guarantee.
Description
Technical field
The present invention relates to contract management field, in particular to a kind of contract management system and side based on block chain technology
Method.
Background technique
Traditional contract is generally papery contract.Both sides affix one's seal after signature, have special contract management personnel to store
And filing then needs specially to store the room of contract if contracted quantity is big, contract is consulted and is retrieved highly inconvenient.Traditionally on paper
Contract wastes paper, and operation cost is high, and contract is stored in both sides' hand, be easy to cause loss, then is difficult through law right-safeguarding.
And electronic contract is mainly the clear both sides' rights and obligations relationship for passing through the signing of the forms such as electronic message, Email
A kind of electronic protocol.The content and signature of electronic contract show as electronic message, and file distribution stores, while can also be following
Load contract is to local.Electronic management, change can look into, and query and search filing is convenient.
When signing electronic contract, first have to using Intelligent file design tool, editing treaty content (can also be from word text
Shelves are introduced directly into), related contract information is filled in by concluding parties, and after confirmation, and Party A first uses E-seal (to be similar to U for one
The object of disk size is inserted into computer, after inputting password twice, is clicked at electronic document underlying empty with mouse, a red public affairs
Department's seal is just imprinted on designated position).Later, contract is transferred to Party B with network by Party A, and Party B covers electricity with same method
Sub- seal.In this way, a electronic contract with legal effect just comes into force.Electronic contract with reliable electronic signature, and
Papery contract has legal equivalents.And the electronic evidence that can be used as with regard to strong proof uses in court.Electronics closes
Card platform is deposited with needing for data file to be stored in the electronic third-party contract for having public credibility, storage platform data center,
The persistence of data is not can guarantee.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above drawbacks of the prior art, providing a kind of certifiable contract
The permanently storing of file, the contract management system and method based on block chain technology of the authenticity of contract of guarantee.
The technical solution adopted by the present invention to solve the technical problems is: constructing a kind of contract pipe based on block chain technology
Reason system, including the file producer, client and EOS system, the EOS system include super node and IPFS distributed document
System, the client are connect with the super node, and the super node is connect with the IPFS distributed file system, institute
It states the file producer and electronic contract is uploaded into the IPFS distributed file system by client, and it is unique to get file
Hash value, file reader or file download person request downloading file to the super node according to the hash value.
In the contract management system of the present invention based on block chain technology, the EOS system, which is one, to be allowed out
Platform of the originator in its agreement top creation block chain application.
In the contract management system of the present invention based on block chain technology, the IPFS distributed file system packet
Include command-line tool and server petiolarea block chain node tool, the command-line tool and the server end block chain node work
Tool connection, the server end block chain node kit include producer node and client node, the command-line tool energy
Wallet is interacted and managed with block chain, and the producer node is responsible for saving the actual data of file, the client node sheet
Ground only saves the address of file, and all clients node can remotely access file content by address.
In the contract management system of the present invention based on block chain technology, the IPFS distributed file system is adopted
It with content-addressable addressing technique, is retrieved by file content, hash operation is carried out to file content, it will
Hash value saves in the local database as filename.
In the contract management system of the present invention based on block chain technology, the client is by sending filename
To server end, request downloading file, the server end searches corresponding file according to filename into database, search at
The client is sent the file to after function, after the completion of file download, the client is by carrying out hash to file content
Operation makes comparisons hash value and filename that operation obtains to determine the integrality of file.
In the contract management system of the present invention based on block chain technology, deposited by holding a certain number of EOS
Token is stored up to obtain the access right of IPFS memory space.
In the contract management system of the present invention based on block chain technology, the client defines a local
Home catalogue, for storing the link of IPFS file, the linked contents of the IPFS file link include at least local home catalogue
Path, file content hash value and file size.
In the contract management system of the present invention based on block chain technology, file link is packaged into transaction by user
Information, is broadcast to the block producer after signature, user pass through EOS store the standardization REST application programming interfaces of software definition will
File uploads to one of block producer；Whether just the block producer verifies file content hash value and file size
Really, once verifying successfully, Transaction Information can be broadcast to other block producers and be synchronized to TOK block by the block producer
On chain, indicate that file has been saved success, other nodes can save the file information by IPFS Network Synchronization.
The invention further relates to a kind of measure of managing contract based on block chain technology, are applied to above-mentioned based on block chain technology
Contract management system, include the following steps:
A) Party A is by Intelligent file design tool in electronic signature contract upper cover E-seal；
B) the electronic signature contract for covering chapter is issued Party B by network by Party A；
C) Party B is by Intelligent file design tool in the electronic signature contract upper cover E-seal received；
D) Party A and Party B are after confirmation is affixed one's seal on electronic signature contract, the contract management based on block chain technology
System uploads electronic signature contract to EOS system automatically, uploads the unique address code for successfully returning to electronic signature contract；
E) address code is stored in by Party A and Party B locally backs up, and when downloading contract, is based on block chain technology described
Contract management system downloading or downloaded to the EOS system using contract address code.
Implement the contract management system and method for the invention based on block chain technology, have the advantages that due to
The file producer, client and EOS system, EOS system include super node and IPFS distributed file system, the file producer
Electronic contract is uploaded into IPFS distributed file system by client, and gets the unique hash value of file, and file is read
Reader or file download person request to download file to super node according to hash value, and the present invention is used and gone based on block chain EOS
Centralization, it is ensured that contract documents permanently store；It is open and clear using the whole network based on block chain, contract of guarantee it is true
Property, therefore the invention can ensure that the permanently storing of contract documents, the authenticity of contract of guarantee.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is that the present invention is based on the architecture diagrams in the contract management system of block chain technology and method one embodiment；
Fig. 2 is the schematic diagram of IPFS distributed file system in the embodiment；
Fig. 3 is the schematic diagram of file upload procedure in the embodiment；
Fig. 4 is the flow chart of method in the embodiment.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention is based in the contract management system and embodiment of the method for block chain technology, based on block chain technology
The architecture diagram of contract management system is as shown in Figure 1.In Fig. 1, being somebody's turn to do the contract management system based on block chain technology includes that file is raw
Production person Author, client end AP P and EOS system, EOS system include super node Nodeos and IPFS distributed file system
IPFS, client end AP P are connect with super node Nodeos, and super node Nodeos and IPFS distributed file system IPFS connect
It connects, file producer Author uploads electronic contract into IPFS distributed file system IPFS by client end AP P, and obtains
To the unique hash value of file, file reader or file download person Users publish papers according to hash value to super node request is lower
Part.
Client end AP P may be mounted on mobile phone, also may be mounted in PC or various terminal equipment.
Contract management system based on block chain technology of the invention not only saves the unique cryptographic Hash of contract, also saves
The original document of contract.It after contract signatory uploads contract to EOS system, is endorsed, is protected to file by 21 super nodes
The persistence for demonstrate,proving contract documents and normally access.The present invention uses the decentralization based on block chain EOS, it is ensured that contract text
Part permanently stores；It is open and clear using the whole network based on block chain, it is ensured that the authenticity of contract.
In the present embodiment, EOS system is a permission developer in its agreement top creation block chain application (DAPP)
Platform.
EOS.IO software (EOS system) introduces a kind of new block chain architecture design, it makes the application of decentralization can
With horizontal and vertical extension.This is realized by way of constructing a simulative operation system, and application can be constructed on it
Program.The EOS.IO software provides account, authentication, database, asynchronous communication and across hundreds of CPU cores or cluster
Application program scheduling.Resulting technology is a kind of block chain framework, it can extend to million grades of transaction of processing per second, is disappeared
Except the service charge of user, and allow quickly and easily to dispose the application of decentralization.
EOS.IO software uses the decentralization common recognition algorithm for being uniquely able to satisfy application performance demand on block chain, commission
Equity proves (DPOS).
EOS.IO software to generate within block accurate every 3 seconds one and all only one is authorized at any point in time
The producer generate block.This block will be skipped if a block is not produced within the stipulated time.
When one or more blocks are skipped generation, 6 seconds an or more interval is had in block chain.
In EOS.IO software, block is generated in turn by 21 producers.At the beginning of each round, 21 unique
The block producer is selected.Obtain highest first 20 of ticket automatically do not take turns it is selected, a remaining block producer by
Ticket ratio is selected.The selected block producer upsets its sequence as pseudo random number by time for getting from block.It beats
It is sequentially disorderly to ensure that these give birth to the connectivity that block production persons and other producers keep in balance.
If a block producer misses a block, and does not produce any area in past 24 hours
Block, then it will be removed from candidate, until it notifies it to start the intention for producing block again in block chain.In this way
Ensure the stabilization of network operation by minimizing the loss quantity (because being proved insecure node not as causing) of block
Property.
Fig. 2 is the schematic diagram of IPFS distributed file system in the present embodiment, in Fig. 2, the IPFS distributed file system
Command-line tool including command-line tool Cleos1, in Cleos2 and server petiolarea block chain node tool Nodeos0, A1
Server end block chain node tool Nodeos0 in Cleos1, Cleos2 and A2 is connect, server end block chain node tool
Nodeos0 includes producer node and client node, and command-line tool Cleos1, Cleos2 can be interacted and be managed with block chain
Wallet, producer node are responsible for saving the actual data of file, the local address for only saving file of client node, all clients
End node can remotely access file content by address.
EOS system uses IPFS distributed file system to store as bottom.IPFS is a kind of content addressable, point pair
Point, the distributed file system transmitted by http agreement.IPFS distributed file system uses content-addressable
Addressing technique, i.e., retrieved by file content rather than the network address that passes through file.It in simple terms, is exactly in file
Hold and carry out hash operation, is saved hash value as filename in the local database, so, as long as file content is constant,
Filename also remains unchanged.
The node for running IPFS, is both client and server.Client end AP P is by sending filename to server
End, request downloading file, server end can search corresponding file according to filename into database, by file after searching successfully
Be sent to client, after the completion of file download, client end AP P by carrying out hash operation to file content, by hash value and
Filename, which is made comparisons, is assured that the integrality of file.
Since file is saved on remote node, so it is addressable that IPFS itself, which cannot be guaranteed file content always,
, for example, file is deleted or remote node denied access etc..It is therefore desirable to which a set of perfect incentive mechanism is encouraged
The storage service of server node offer stability and high efficiency.For example, in Filecoin system, user need for upload every time and under
Published article part pays certain expense to server node.
In order to obtain the access right of IPFS memory space, user needs to hold a certain number of EOS storage tokens
(TOK).Each client end AP P needs to define a local home catalogue, for storing the link of IPFS file.Linked contents are main
Hash value (filename) and file size including local home directory path, file content.
File link is packaged into Transaction Information by user, the block producer is broadcast to after signature, user stores soft by EOS
File is uploaded to one of block producer by the standardization REST application programming interfaces that part defines；Then, which produces
Person verifies file content hash value and whether file size is correct, once verifying successfully, the block producer can be wide by Transaction Information
It broadcasts to other block producers and is synchronized on TOK block chain, indicate that file has been saved success, other nodes can pass through IPFS
Network Synchronization saves the file information.File upload procedure schematic diagram as shown in Figure 3.
After file uploads successfully, when client end AP P needs to download file, it is only necessary to which filename is issued producer services
Device end, then, server end retrieve corresponding file by IPFS and are sent to client end AP P.In general, IPFS points
File in cloth file system is all read-only, because the trickle amendment of file content will lead to client end AP P verification mistake
It loses.
EOS storage core be IPFS, it provide one anyone can trust instrument decentralization network, this
A little files can be remotely accessed by address.The block producer is practical to represent 21 super nodes, and each super node needs
Possess and support that height is handled up the data center of EOS trading volume, and file hosting service can be provided in the world, as long as and have to
A few super node is online, and the file of user is exactly accessible.
The present embodiment further relates to a kind of measure of managing contract based on block chain technology, is applied to above-mentioned based on block chain skill
The contract management system of art is somebody's turn to do the measure of managing contract based on block chain technology and is included the following steps:
Step S01 Party A is by Intelligent file design tool in electronic signature contract upper cover E-seal: in this step, first
Side is by Intelligent file design tool in electronic signature contract upper cover E-seal.
The electronic signature contract for covering chapter is issued Party B by network by step S02 Party A: in this step, Party A passes through net
The electronic signature contract for covering chapter is issued Party B by network.
Step S03 Party B is by Intelligent file design tool in the electronic signature contract upper cover E-seal received: this step
In rapid, Party B equally passes through Intelligent file design tool in the electronic signature contract upper cover E-seal received.
Step S04 Party A and Party B is after confirmation is affixed one's seal on electronic signature contract, in the present invention based on block chain skill
The contract management system of art uploads electronic signature contract to EOS system automatically, uploads and successfully returns to the unique of electronic signature contract
Address code.
Address code is stored in by step S05 Party A and Party B locally to be backed up, and when downloading contract, is being based on block chain technology
Contract management system downloading or using contract address code to the downloading of EOS system: in this step, Party A and Party B are by address code
It is stored in and locally backs up, it, can be in the contract management system downloading of the invention based on block chain technology when needing to download contract
Or it is downloaded using contract address code to EOS system.
In short, the present invention passes through the Distributed Application of block chain, it is ensured that the integrality and uniqueness of electronic contract, block chain
Distributed Application, be not limited to the application program and various block chain Distributed Applications of EOS；The unlimited manufacturing industry of contract, service
The all trades and professions such as industry；The type of the contract management system based on block chain technology is not limited to Web version, mobile phone version, and PC is applied,
Embedded Application, the various application types such as small routine.Electronic contract is not limited by various electronic third-party contract platforms and each
The electronic contract of kind E-seal tool signature.
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
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of contract management system based on block chain technology, which is characterized in that including the file producer, client and EOS
System, the EOS system include super node and IPFS distributed file system, and the client and the super node connect
It connects, the super node is connect with the IPFS distributed file system, and the file producer uploads electronics by client
Contract gets the unique hash value of file, file reader or file download into the IPFS distributed file system
Person requests downloading file to the super node according to the hash value.
2. the contract management system according to claim 1 based on block chain technology, which is characterized in that the EOS system
Being one allows developer to create the platform that block chain is applied on its agreement top.
3. the contract management system according to claim 2 based on block chain technology, which is characterized in that the IPFS distribution
Formula file system includes command-line tool and server petiolarea block chain node tool, the command-line tool and the server end
The connection of block chain node tool, the server end block chain node kit includes producer node and client node, described
Command-line tool can interact with block chain and manage wallet, and the producer node is responsible for saving the actual data of file, described
The local address for only saving file of client node, all clients node can remotely access file content by address.
4. the contract management system according to claim 3 based on block chain technology, which is characterized in that the IPFS distribution
Formula file system uses content-addressable addressing technique, is retrieved by file content, carries out to file content
Hash operation saves hash value as filename in the local database.
5. the contract management system according to claim 4 based on block chain technology, which is characterized in that the client is logical
Transmission filename is crossed to server end, file is downloaded in request, and the server end searches correspondence according to filename into database
File, the client is sent the file to after searching successfully, after the completion of file download, the client passes through to file
Content carries out hash operation, hash value and filename that operation obtains is made comparisons to determine the integrality of file.
6. according to claim 1 to the contract management system based on block chain technology described in 5 any one, which is characterized in that
The access right of IPFS memory space is obtained by holding a certain number of EOS storage tokens.
7. according to claim 1 to the contract management system based on block chain technology described in 5 any one, which is characterized in that
The client defines a local home catalogue, links for storing IPFS file, in the link of the IPFS file link
Hold the hash value and file size for including at least local home directory path, file content.
8. according to claim 1 to the contract management system based on block chain technology described in 5 any one, which is characterized in that
File link is packaged into Transaction Information by user, and the block producer is broadcast to after signature, and user stores software definition by EOS
It standardizes REST application programming interfaces and file is uploaded into one of block producer；The block producer verifies in file
Hold hash value and whether file size is correct, once verifying successfully, Transaction Information can be broadcast to other by the block producer
The block producer is simultaneously synchronized on TOK block chain, indicates that file has been saved success, other nodes can pass through IPFS Network Synchronization
Save the file information.
9. a kind of measure of managing contract based on block chain technology, which is characterized in that applied to being based on as described in claim 1
The contract management system of block chain technology, includes the following steps:
A) Party A is by Intelligent file design tool in electronic signature contract upper cover E-seal；
B) the electronic signature contract for covering chapter is issued Party B by network by Party A；
C) Party B is by Intelligent file design tool in the electronic signature contract upper cover E-seal received；
D) Party A and Party B are after confirmation is affixed one's seal on electronic signature contract, the contract management system based on block chain technology
The automatic electronic signature contract that uploads uploads the unique address code for successfully returning to electronic signature contract to EOS system；
E) address code is stored in by Party A and Party B locally backs up, when downloading contract, in the conjunction based on block chain technology
It downloads with management system or is downloaded using contract address code to the EOS system.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111061698A (en) * | 2019-12-30 | 2020-04-24 | 语联网（武汉）信息技术有限公司 | Storage method and device of Ether house contract data |
| CN111461917A (en) * | 2020-02-11 | 2020-07-28 | 江苏荣泽信息科技股份有限公司 | Power system material contract management system based on block chain |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106022775A (en) * | 2016-05-13 | 2016-10-12 | 邓迪 | File signature method and system based on block chains |
| CN106570681A (en) * | 2016-10-28 | 2017-04-19 | 山东明和软件有限公司 | Anti-tampering private fund electronic contract signing system and method based on block chain |
| KR101868029B1 (en) * | 2017-03-10 | 2018-06-18 | 현대카드 주식회사 | Method and system for sharing file based on blockchain |
| CN109491965A (en) * | 2018-09-13 | 2019-03-19 | 远光软件股份有限公司 | The storage method and its network and electronic equipment of purchase sale of electricity contract |
| CN110083606A (en) * | 2019-04-25 | 2019-08-02 | 深圳市豪斯莱科技有限公司 | Across chain storage method, terminal and storage medium |
-
2019
- 2019-08-19 CN CN201910762306.3A patent/CN110532238A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106022775A (en) * | 2016-05-13 | 2016-10-12 | 邓迪 | File signature method and system based on block chains |
| CN106570681A (en) * | 2016-10-28 | 2017-04-19 | 山东明和软件有限公司 | Anti-tampering private fund electronic contract signing system and method based on block chain |
| KR101868029B1 (en) * | 2017-03-10 | 2018-06-18 | 현대카드 주식회사 | Method and system for sharing file based on blockchain |
| CN109491965A (en) * | 2018-09-13 | 2019-03-19 | 远光软件股份有限公司 | The storage method and its network and electronic equipment of purchase sale of electricity contract |
| CN110083606A (en) * | 2019-04-25 | 2019-08-02 | 深圳市豪斯莱科技有限公司 | Across chain storage method, terminal and storage medium |
Non-Patent Citations (4)
| Title |
|---|
| BBOYHAN: "https://blog.csdn.net/han0373/article/details/80569425", 《IPFS白皮书中文版》 * |
| CATHERINE: "https://cloud.tencent.com/developer/news/182301", 《EOS是什么 金色百科》 * |
| OMNIGEEKER: "https://blog.csdn.net/omnigeeker/article/details/83272968", 《IPFS直播最详细解读-FILECOIN DEMO演示》 * |
| 极简主义: "www.8btc.com/article/220049", 《走进EOS的存储系统》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111061698A (en) * | 2019-12-30 | 2020-04-24 | 语联网（武汉）信息技术有限公司 | Storage method and device of Ether house contract data |
| CN111061698B (en) * | 2019-12-30 | 2023-09-05 | 语联网（武汉）信息技术有限公司 | Method and device for storing Ethernet contract data |
| CN111461917A (en) * | 2020-02-11 | 2020-07-28 | 江苏荣泽信息科技股份有限公司 | Power system material contract management system based on block chain |
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