CN109117501A - Science data modeling and storage method based on block chain - Google Patents
Science data modeling and storage method based on block chain Download PDFInfo
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- CN109117501A CN109117501A CN201810722515.0A CN201810722515A CN109117501A CN 109117501 A CN109117501 A CN 109117501A CN 201810722515 A CN201810722515 A CN 201810722515A CN 109117501 A CN109117501 A CN 109117501A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q40/00—Finance; Insurance; Tax strategies; Processing of corporate or income taxes
- G06Q40/04—Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange
Abstract
The embodiment of the present invention discloses a kind of science data modeling and storage method based on block chain, is related to block chain technical field, convenient for providing safety guarantee for management of the science data in terms of true power.The science data modeling and storage method based on block chain, comprising: be based on target requirement, construct the entity of the science data modeling based on block chain；Wherein, the entity includes coin, transaction and block；According to the entity, the structure table of each entity is established；According to the structure table of each entity, the entire design of block chain is completed；Wherein, the Transaction Information of the block chain storage includes: coin input information, coin output information and Transaction Details information.The present invention is suitable for the management and use of science data.
Description
Technical field
The present invention relates to block chain technical field more particularly to a kind of science data modelings and storage side based on block chain
Method.
Background technique
In recent years, due to the diversity of data source and the low cost of storage medium, more and more data are produced
Existence is stored up and is accumulated.With data scale sharply increase and more attention of the people to data, big data rapidly develop simultaneously
The hot spot paid close attention to as focus concerned by people and various circles of society.
How the data especially science data resource one of mostly important as current era uses reasonable data knot
Structure storing data, while the management of ownership in data sharing is further improved, while deepening data Utilization ability to realize
Data with safety guarantee are open, are a urgent problems to be solved.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of science data modeling and storage method based on block chain, it is convenient for
Safety guarantee is provided for management of the science data in terms of true power.
A kind of science data modeling and storage method based on block chain, comprising:
Based on target requirement, the entity of the science data modeling based on block chain is constructed；Wherein, the entity includes money
Coin, transaction and block；
According to the entity, the structure table of each entity is established；
According to the structure table of each entity, the entire design of block chain is completed；Wherein, the Transaction Information of the block chain storage
It include: coin input information, coin output information and Transaction Details information.
A kind of specific implementation according to an embodiment of the present invention, it is described according to the entity, establish the structure of each entity
Table, comprising:
According to coin entity, coin structure table is established；
According to transaction entity, structure of deal table is established；
According to block entity, block structure table is established.
A kind of specific implementation according to an embodiment of the present invention, the structure table according to each entity complete block chain
Entire design, comprising:
According to coin structure table, structure of deal table and block structure table, according to from the inside to the outside, design side from small to large
Method completes the entire design of block chain.
The field name of a kind of specific implementation according to an embodiment of the present invention, the coin structure table includes: coin
Save location, this value is unique；The quantity of coin under current location；The owner id of current coin, this value are unique；
The field name of the structure of deal table includes: all coin inputs, this coin is used for buying data, and
These coins are not yet spent；The output of all coins, this coin be the income side to trade and coin beyond transaction value into
Row is replaced；The time that current transaction generates, using Unix timing；The movement of this transaction is currently generated, wherein behavior act includes:
Purchase data, downloading data upload data, audit data, login system, Modify password, give password for change；Data seller, and
This value is unique；Data purchaser, and this value is unique；Currently trade the data id being related to, and this value is unique；The valence currently traded
Lattice；The auditor id of current data；
The field name of the block structure table includes: the height of block, this value is incremented by as block generates；Work as proparea
The time that block generates, using the Unix time；The hash value of a upper block is constructed and is verified for next block；Block is all
Transaction；The proof of work value generated by distributed common recognition mechanism.
A kind of specific implementation according to an embodiment of the present invention, the method, further includes:
In the database by the data storage in Partial Block chain, and multiple indexes are established on the database.
A kind of specific implementation according to an embodiment of the present invention, the database include: block table, tables of data, transaction
Table, income accounting table and coin table；Wherein,
The field of the block table of the database includes: the unique identification of block, this value is uniquely used for distinguishing different areas
Block；The height of block, another layer of meaning, that is, chronological order of elevation information, the birth of block were incremented by strict accordance with the time
It generates；The time that current block generates；The size of current block, default units are bytes；The number of deals for including in current block
Amount can be used this field and carry out ascending or descending order arrangement operation to block；Current block hash value, for carrying out block hash inspection
Rope；
The field of the tables of data of the database includes: data unique identification id, this value is unique；Data owner id；Number
According to title, user is facilitated to browse purchase data；Data introduction facilitates user to check data specifying information；When current data uploads
Between, using the Unix time；Data source；Data type；Data label；Data current review state；The md5 value of current data,
For carrying out data uniqueness verifying；The current size of data, default units KB；Data number of downloads, after data upload successfully
Default value is 0；Data purchase volume, data purchase can once download repeatedly；Data price；Data storage location；Data grading, point
For 1-5 grade, higher grade illustrates that the quality of data is better；Participate in the evaluation number of this data；
The field of the tran list of the database includes: transaction unique identification id；Data purchaser id；Data seller
id；The data id currently to participate in business；The time currently traded；The price currently traded；Current transaction grading；Current data
Last download time, avoid frequent downloads；
The field name of the income accounting table of the database includes: data unique identification id；The use of current data income
Name in an account book；The income accounting of current beneficiary is realized for automating distribution of income；
The field name of the coin table of the database includes: coin unique identification id；The owner of current coin；Currently
Whether coin has spent, and Timing Synchronization block chain data avoid malfunctioning；The generation time of coin；Coin under current location
Quantity.
A kind of specific implementation according to an embodiment of the present invention, the method, further includes: based on the block chain and
The Database really weighs system based on the science data of block chain.
A kind of science data modeling and storage method based on block chain provided in an embodiment of the present invention, in the block of foundation
In chain, the Transaction Information of storage includes: coin input information, coin output information and Transaction Details information, to original area
Data structure on block chain is extended and improves, and can store more generally data model, thus can be by block chain
Decentralization technology, convenient for providing safety guarantee for management of the science data in terms of true power.
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
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the embodiment of the present invention based on the science data modeling of block chain and the flow diagram of storage method；
Fig. 2 is the block chain overall structure diagram established according to one embodiment of the invention；
Fig. 3 is really to weigh system construction drawing according to the science data based on block chain that one embodiment of the invention is established；
Fig. 4 is to be shown according to the functional structure that the science data based on block chain that one embodiment of the invention is established really weighs system
It is intended to.
Specific embodiment
The embodiment of the present invention is described in detail with reference to the accompanying drawing.
It will be appreciated that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
Its embodiment, shall fall within the protection scope of the present invention.
Fig. 1 is the embodiment of the present invention based on the science data modeling of block chain and the flow diagram of storage method, such as Fig. 1
Shown, the method for the present embodiment, may include step:
S101, it is based on target requirement, constructs the entity of the science data modeling based on block chain；Wherein, the entity packet
Include coin, transaction and block.
The Transaction Information stored in current block chain technology only includes " transaction initiator ", " transaction acceptance side " and " is handed over
Three attributes of the easy amount of money ".And the various data of science data institute subordinate are then many kinds of, attribute is different, existing block
The data structure that chain uses can not directly store these data.The application is based on analyzing existing block chain technology, and particular for
Science data establishes unified mathematical model according to data type, data source, size of data etc., enables model well
Data storage efficiency, the fault-tolerance etc. of description block chain technology.
S102, according to the entity, establish the structure table of each entity.
S103, the structure table according to each entity complete the entire design of block chain；Wherein, the friendship of the block chain storage
Easy information includes: coin input information, coin output information and Transaction Details information.
It only include " transaction initiator ", " transaction acceptance side " relative to the Transaction Information stored in existing block chain technology
For " transaction amount " three attributes, the embodiment of the present invention, in the block chain of foundation, the Transaction Information of storage includes:
Coin inputs information, coin output information and Transaction Details information, to the data structure on original block chain be extended with
It improves, more generally data model can be stored, it thus can be by the decentralization technology of block chain, convenient for being scientific and technological number
Safety guarantee is provided according to the management in terms of true power.
In an embodiment of the present invention, described according to the entity, establish the structure table (S102) of each entity, comprising:
S1021, according to coin entity, establish coin structure table.
In the present embodiment, the field name of the coin structure table can include: the save location of coin, this value are unique；When
The quantity of coin under front position；The owner id of current coin, this value are unique.
Specifically, the coin structure table in the present embodiment can be as shown in table 1.
Table 1: coin structure table
| Field name | Type | Field is described in detail |
| coin_uuid | VARchar(64) | Save the address of coin |
| number_coin | Float | The quantity of coin |
| owner | VARchar(64) | Save the coin owner |
Field coin_uuid stores the save location of coin, this value is unique；
Field number_coin stores the quantity of the coin under current location；
Field owner stores the owner id of current coin, this value is unique.
S1022, according to transaction entity, establish structure of deal table.
In the present embodiment, the field name of the structure of deal table can include: all coin inputs, this coin is for purchasing
Data use is bought, and these coins are not yet spent；The output of all coins, this coin be the income side of transaction and beyond trading
The coin of price is replaced；The time that current transaction generates, using Unix timing；The movement of this transaction is currently generated, wherein
Behavior act includes: purchase data, downloading data, uploads data, audit data, login system, Modify password, gives password for change；
Data seller, and this value is unique；Data purchaser, and this value is unique；Currently trade the data id being related to, and this value is only
One；The price currently traded；The auditor id of current data.
Specifically, the structure of deal table in the present embodiment can be as shown in table 2.
Table 2: structure of deal table
Field in_coins saves all coin inputs, this coin is for buying data use, and these coins are not yet
It is spent, coin structure is shown in Table shown in 1 coin structure table.
Field out-coins saves the output of all coins, this coin be the income side to trade and beyond transaction value
Coin is replaced, and structure is as shown in 1 coin structure table of table.
Field timestamp saves the time that current transaction generates, using Unix timing.
Field action saves the movement for currently generating this transaction, and wherein behavior act includes: purchase data, downloading number
According to, upload data, audit data, login system, Modify password, give password for change.
Field seller saves data seller, and this value is unique.
Field buyer saves data purchaser, and this value is unique.
Field data_uuid saves the data id being related to that currently trades, and this value is unique.
Field credit saves the price currently traded.
The auditor id of field reviewer preservation current data.
S1023, according to block entity, establish block structure table.
In the present embodiment, the field name of the block structure table can include: the height of block, this value are generated with block
And it is incremented by；The time that current block generates, using the Unix time；The hash value of a upper block, for next block construction with
Verifying；All transaction of block；The proof of work value generated by distributed common recognition mechanism.
Specifically, in the present embodiment, block structure table can be as shown in table 3.
Table 3: block structure table
The height of field index memory block, this value are incremented by as block generates.
Field timestamp stores the time that current block generates, and equally uses the Unix time.
Field prev-hash stores the hash value an of block, constructs and verifies for next block.
All transaction of field transactions memory block, wherein structure of deal is shown in Table shown in 2 structure of deal tables.
The proof of work value that field nonce storage is generated by distributed common recognition mechanism.
In an embodiment of the present invention, the structure table according to each entity completes the entire design (S103) of block chain,
It include: according to coin structure table, structure of deal table and block structure table, according to from the inside to the outside, design method from small to large is complete
At the entire design of block chain.Fig. 2 is the block chain overall structure diagram established according to one embodiment of the invention.
Building data directory is to speed up Various types of data query processing speed, improves the important method of system performance.In data
In terms of storage and management, it there are no the mature application based on block chain technology and occur, establish the index technology on block chain
It does not know where to begin even more.On the one hand the reason of leading to this situation is not have the mature data management system based on block chain technology
System occurs, on the other hand also due to the time series data that block chain is stored has essence different from traditional relational database structure,
Index technology is also difficult to migrate.For this defect, the embodiment of the present invention according to the characteristics of science data with used bottom
Block chain data structure supports it effectively with science data on block chain by constructing multiple indexes on the database
All kinds of inquiries of core.That is, the embodiment of the present invention passes through the basis category that will establish the science data on block chain
Property be combined with database index, improve block chain on science data recall precision.Specifically, in one embodiment of the invention
In, the method may also include that
In the database by the data storage in Partial Block chain, and multiple indexes are established on the database, built with utilizing
Multiple indexes on the database are found to accelerate the inquiry velocity and recall precision of Various types of data information.
Further, in the embodiment of the present invention, by establishing multiple relationships such as tables of data, tran list, Yong Hubiao, check list
Type tables of data, and index is established on it, and then improves and improve the recall precision of data.Wherein main index includes: to build
Found the major key index on multiple tables；Settling time stamp index column establishes joint index column.
The present embodiment is using storing Partial Block information into database, by constructing a variety of indexes on this database
Structure further increases the index to block.Meanwhile the data to ensure to store in database and the data phase one in block chain
It causes, the present embodiment realizes the function of periodically synchronizing block chain data and database data, reduces because of database number
Data retrieval problem caused by being tampered according to loss or data.
By means of establishing a variety of indexes on the database, project is realized according to block hash value and the inspection of block height
The function of rope block realizes searching for generally and realizing according to timestamp, data according to data name, data introduction etc.
The ranking function of a variety of sort fields such as name, size of data.
In an embodiment of the present invention, the database include: block table, tables of data, tran list, income accounting table and
Coin table.
Wherein, the field of the block table of the database includes: the unique identification of block, this value is uniquely used for distinguishing different
Block；The height of block, another layer of meaning, that is, chronological order of elevation information, the birth of block is in strict accordance with the time
It is incremented by and generates；The time that current block generates；The size of current block, default units are bytes；The friendship for including in current block
Easy quantity can be used this field and carry out ascending or descending order arrangement operation to block；Current block hash value, for carrying out block
Hash retrieval.
Specifically, in the present embodiment, the block table details of database are as shown in table 4.
Table 4: block table structure
| Title | Type | Constraint condition | Explanation |
| id | INT | Major key, non-empty | From increasing id |
| height | VARchar(64) | It is non-empty, unique | Block height |
| timestamp | VARchar(32) | Non-empty | Block generation time |
| block_size | FLOAT | Non-empty | Block size |
| tx_number | INT | Non-empty | The number of transaction that block is included |
| block_hash | VARchar(64) | Non-empty | Block hash value |
Field id indicates that the unique identification of block, this value are uniquely used for distinguishing different blocks.
Field height is used to identify the height of block, another layer of meaning, that is, chronological order of elevation information, block
Birth be in strict accordance with the time be incremented by generate.
Field timestamp stores the time that current block generates.
Field block_size stores the size of current block, and default units are byte (Bit).
The number of transaction for including in field tx-number storage current block, can be used this field and carries out ascending order to block
Or descending arrangement operation.
Field block-size stores current block hash value, for carrying out block hash retrieval.
The field of the tables of data of the database includes: data unique identification id, this value is unique；Data owner id；Number
According to title, user is facilitated to browse purchase data；Data introduction facilitates user to check data specifying information；When current data uploads
Between, using the Unix time；Data source；Data type；Data label；Data current review state；The md5 value of current data,
For carrying out data uniqueness verifying；The current size of data, default units KB；Data number of downloads, after data upload successfully
Default value is 0；Data purchase volume, data purchase can once download repeatedly；Data price；Data storage location；Data grading, point
For 1-5 grade, higher grade illustrates that the quality of data is better；Participate in the evaluation number of this data.
Specifically, in the present embodiment, the tables of data details of database are as shown in table 5.
Table 5:data table structure
Field data_id saves data unique identification id, this value is unique.
Field user_id saves data owner id.
Field data_name saves data name, and user is facilitated to browse purchase data.
Field data_info saves data introduction, and user is facilitated to check data specifying information.
Field timestamp saves current data uplink time, using the Unix time.
Field data_source saves data source, such as Tsing-Hua University, Beijing University, Beijing Institute of Aeronautics etc..
Field data-type saves data type, such as pdf, ppt, xls, mp3 etc..
Field data_tag saves data label, such as traffic, medical treatment, education etc..
Field data_status saves data current review state, is divided into audit, audit passes through, audits and do not pass through.
Field data_md5 saves the md5 value of current data, for carrying out data uniqueness verifying.
Field data_size saves the current size of data, default units KB.
Field data_download saves data number of downloads, and default value is 0 after data upload successfully.
Field data_purchase saves data purchase volume, and data purchase can once download repeatedly.
Field data_price saves data price.
Field data_address saves data storage location.
Field data_score saves data grading, is divided into 1-5 grade, higher grade illustrates that the quality of data is better.
Field comment_number saves the evaluation number for participating in this data.
The field of the tran list of the database includes: transaction unique identification id；Data purchaser id；Data seller
id；The data id currently to participate in business；The time currently traded；The price currently traded；Current transaction grading；Current data
Last download time, avoid frequent downloads.
Specifically, as shown in table 6 according to the tran list details in library in the present embodiment.
Table 6: transaction table structure
| Title | Type | Constraint condition | Explanation |
| transaction_id | VARchar(64) | Major key, non-empty | Transaction unique identification |
| buver_id | VARchar(64) | Non-empty | Data purchaser's unique identification |
| seller_id | VARchar(64) | Non-empty | Data seller's unique identification |
| data_id | VARchar(64) | Non-empty | Data unique identification |
| timestamp | VARchar(32) | Non-empty | Transaction generation time |
| pr1ce | FLOAT | Non-empty | Purchasing price |
| data-score | INT | Non-empty | Transaction grading |
| last_download_time | VARchar(32) | Non-empty | The last downloading data time |
Field transaction_id saves transaction unique identification id.
Field buyer_id saves data purchaser id.
Field seller_id saves data seller id.
Field data_id saves the data id currently to participate in business.
Field timestamp saves the time currently traded.
Field price saves the price currently traded.
Field data-score saves current transaction grading.
Field last-download-time saves the last download time of current data, avoids frequent downloads.
The field name of the income accounting table of the database includes: data unique identification id；The use of current data income
Name in an account book；The income accounting of current beneficiary is realized for automating distribution of income.
Specifically, in the present embodiment, the income accounting table details of database are as shown in table 7.
Table 7: income accounting table structure
| Title | Type | Constraint condition | Explanation |
| data-id | VARchar(64) | Major key, non-empty | Data unique identification |
| user-name | VARchar(20) | It is major key, unique | User login name |
| ratio | FLOAT | Non-empty | The income accounting of data |
Field data_id saves data unique identification id.
The user name of field user_name preservation current data income.
Field ratio saves the income accounting of current beneficiary, realizes for automating distribution of income.
The field name of the coin table of the database includes: coin unique identification id；The owner of current coin；Currently
Whether coin has spent, and Timing Synchronization block chain data avoid malfunctioning；The generation time of coin；Coin under current location
Quantity.
Specifically, in the present embodiment, the coin table details of database are as shown in table 8.
Table 8: coin table structure
| Title | Type | Constraint condition | Explanation |
| coin_id | VARchar(64) | Major key, non-empty | Coin address unique identification |
| owner_id | VARchar(64) | Non-empty | Coin owner's unique identification |
| is_spent | BOOLEAN | Non-empty | Whether coin spends |
| timestamp | VARchar(32) | Non-empty | Coin generation time |
| coin_credit | FLOAT | Non-empty | Coin quantity |
Field coin_id saves coin unique identification id.
Field owner_id saves the owner of current coin.
Field is_spent saves whether current coin has spent, and Timing Synchronization block chain data avoid malfunctioning.
The generation time of field timestamp preservation coin.
Field coin_credit saves the coin quantity under current location.
In an embodiment of the present invention, the method, further includes: be based on the block chain and the Database base
System is really weighed in the science data of block chain.
On the basis of existing method for secret protection, in the embodiment of the present invention, for the privacy for ensuring data, need by
Data carry out conversion map operation, and using secure hash algorithm, SHA256 algorithm specifically can be used.Secure hash algorithm is resonable
By the information of endless above may be implemented to the mapping of fixed-length string.
It furthermore is the safety for ensuring transaction data, the present embodiment is calculated using rivest, shamir, adelman-elliptic curve cryptography
Method carries out cryptographic operation to transaction, avoids the malicious modification of data in stealing.
To ensure the legitimacy of block data and the benign development of distributed block environment, need using distributed common recognition
Mechanism.This project is by analyzing the actual environment disposed with investigating system and future usage situation, using Proof of
Work mechanism.
In addition to ensure the ownership of data and the right to use of data, the data in block will save time or less user's row
Are as follows: user buy data (buy), user's downloading data (download), administrator audit data by (review_pass),
Audit data do not pass through (review_reject), login system (login), upload data (upload), give password for change
(reset_pwd), Modify password (modify_pwd).Action field in block will be used to distinguish above-mentioned different behavior,
The information such as the time for carrying out aforesaid operations, the user id for carrying out aforesaid operations behavior will be saved in block.
For the uniqueness for guaranteeing data, when user carries out data upload operation, system will carry out the verifying of md5 value.When
And if only if this data can be just included in database by system when the data in the md5 and database of data are inconsistent, and same
When this md5 value is recorded into database.Once there is the case where Data duplication upload, system automatic will send that platform is short to disappear
Breath, informs when data owner (users of first upload data) is being produced upload in violation of rules and regulations by whom in which data
Operation.In addition, system will also notify current data uploader, inform that the data that it is uploaded conflict with data generation in system.
For the legitimacy for further ensureing data, the audit state for the data default that user is uploaded is in audit, when and
Only after platform administrator audit is by this data, data just can carry out transaction sharing by platform.Skill for the convenience of the user
According to audit state, system will send auditing result automatically and inform user.
When using Pow mechanism, system needs the transaction to user to generate processing in time and response.For the friendship of anti-locking system
Yi Chi occurs being detained or overflow problem, needs to reduce the whole network for the degree-of-difficulty factor of PoW mechanism, to reduce to electric power resource
Using and meet transaction is timely responded to.The shared of file is carried out using Pow algorithm and by common recognition network, is furthermore used
With most long-chain for main chain, most long-chain common recognition algorithm is realized.Since the data in MySQL database may be modified artificially, then lead to
It crosses timing to be updated block chain with system data, the consistency of data is safeguarded by this Data renewal mechanism.It is such more
New operation will read the address coin all in block chain, and its result be synchronized inserted or updated to database.It is fixed using this
When simultaneous techniques on the one hand can give data in database for change by block chain, on the other hand correctly search block information for user
Efficient retrieval is provided to ensure.
By means of can not the distorting of block chain, decentralization, open and clear feature, by by data operating record to block
In chain, and by means of weighing mechanism designed by platform really, the time backtracking to any data operation behavior, Jin Erbao are realized
Hinder the legal right to use of data of the ownership and data purchaser of data owner.
Fig. 3 is really to weigh system construction drawing according to the science data based on block chain that one embodiment of the invention is established, referring to
Fig. 3, data storage layer include system key data information, and basic data layer includes customer transaction relevant information, and logical layer includes
The function of system is realized.
Data storage layer, basic data layer and logical layer are described in detail respectively below.
(1) data storage layer
Data storage layer includes block chain information and MySQL database, and wherein block chain information is as open account book note
The information such as all Transaction Informations, record user login operation, record manager audit in recording system.It can by the displosure account book
To ensure the right of data owner, according to time sequencing trace back data uploader and uplink time.Furthermore it can record management
The operation of member's audit data, so that data audit movement is traceable, and can verify whether certain data has out by block chain
It sells condition or verifies whether certain data is reviewed.
MySQL database storage system account information (user name, mailbox, mobile phone, address etc.), data details (number
According to size, data uplink time, data price, data grading etc.), notification information (access time, the information content, information
Sender, receiver) etc..
The big composition of the two of data storage layer: it is synchronous to guarantee data that block chain can carry out periodic data with MySQL database
Consistency.Synchronous information is mainly the address coin traded, coin quantity, the coin owner, coin quantity at present.It uses
Coin data in block chain are as the data source that can not be distorted, according to this data source to the coin information in MySQL database
It is updated operation.
(2) basic data layer
Basic data layer includes current system configuration information, trading pit, block caching, userspersonal information, browser
Session data (identity information etc. of active user).Wherein configuration information includes and installs matching for the reward mechanism of current system
Set, the resetting cryptographic chaining expired time of current system configuration, system paging situation configuration etc..Trading pit in the present embodiment will
For saving transaction not yet packed in current system, need further to be verified.Block caching indicates the present embodiment block chain
The next block but this block that network generates not yet are written into block chain.
(3) logical layer
Logical layer includes personal information maintenance, data audit, data upload, income is distributed automatically, transaction encryption processing, order
Single evaluation, information notice, data search, user's registration, personal income details etc..
The systematic functional structrue of the present embodiment mainly includes three functional modules: user management module, data management module,
Trade management module.Systematic functional structrue figure is as shown in Figure 4.In addition to above-mentioned several functional modules, needing in addition to write cooperation should
The digging mine algorithm of system and the algorithm of block chain and database Timing Synchronization.
User management module, data management module, trade management module are illustrated respectively below.
(1) family management module
User management module specifically includes that user's registration, unified portal login, password is given for change, password is modified, individual subscriber
Information modification.
(1) user's registration.It needs to input login name, mailbox, password when visitor registers.Wherein system can verify registration
Whether name repeats with the user name in database and provides necessary information alert.
(2) unified portal login.System provides unified entrance for ordinary user and administrator, and system is automatic by user name
It identifies current registrant's identity, and jumps to the different pages.
(3) password is given for change.System mailbox is opened into SMTP service first, it is that user sends mail that this function, which can be used,.
Wherein Mail Contents mainly include password resetting link and link expired time.When password is given in user's application for change, system is should
User generates specific resetting cryptographic chaining, and saves to database and save the time that the lower link generates simultaneously.The password weight
It sets link to be tied to present application and give for change on the user of password, mail will be sent in mailbox reserved when the user's registration.For
Guarantee user password safety, the chance which has and only once reset, and expired time is set as 30 minutes.
(4) password is modified.User inputs current password, and inputs achievable Modify password operation after new password twice.Together
When send password modification inform user.
(5) userspersonal information modifies.Personal information can be improved after logging in system by user, this information is carried out as administrator
One of the index of user data audit, it is ensured that the reliability and safety of data source.
(2) data management module
The major function of data management module has: data information is perfect, data search, data income is arranged, data score
Maintenance, data audit.
(1) data information is perfect.When user uploads data, data name, data introduction need to be filled in as requested and selects number
According to source, data tag, data price etc..
(2) data search.User can pass through the fields logarithms such as data name, data introduction, data tag in the Data Market page
According to scanning for.System will carry out fuzzy matching by obtaining the key word of the inquiry of user in the database, and return to all
The data information matched.
(3) data income is arranged.When user uploads data, it may be added to that more 5 other beneficiaries, and income is set and is accounted for
Than.Simultaneity factor informs the avail data name and income accounting of every beneficiary by details are sent.
(4) data scoring maintenance.After user successfully buys data, data scoring operation can be carried out thus.At present from as low as
High score is 1 to 5 five grade, and the default level after data upload is 0.The scoring of every user will all be saved to historical trading table
In, while data level and data evaluation person in more new data table.This function user guarantee transaction the quality of data and
Reference information as other users purchase.
(5) data are audited, this function is only open to administrator.After administrator's login system, data review operations can be carried out.
The search of data is supported in the data audit page and is sorted according to data uplink time, size of data, data grading etc., it is convenient
The review operations of administrator.The auditing result of administrator will be updated to database while generate msu message and save to block chain,
Furthermore auditing result will send information automatically and inform data uploader.
(3) trade management module
The major function of trade management module has: trading into chain, block caching, income is distributed automatically, Transaction Information is checked.
(1) transaction such as chain.The present embodiment is packaged generated transaction using PoW mechanism.Transaction Information will save
Into system trading pit, new block will be generated after a certain period of time by transaction and is packaged the new block of generation.It will be tested when being packaged processing
Demonstrate,prove the structural validation of each transaction, and the encryption to transaction data.
(2) block caches.System will carry out caching process for current block, and current digging mine algorithm is by periodic verification
The legitimacy of block chain simultaneously carries out legitimate verification for the All Activity in each block.Verifying content includes: to work as proparea
The prev_hash value of block is equal to the hash value of a upper block, and the nonce value of current block meets the degree-of-difficulty factor of current network
It is required that.
(3) income is distributed automatically.System will acquire the avail information in income accounting table, when other users buy this data
When, income, which is carried out, according to the setting of user automatically distributes automatically.Distribution of income will generate a transaction, but include different coin
Flow direction.Transaction Information is packaged into block into trading pit waiting according to after structure progress data filling before.
(4) Transaction Information is checked.User can check current all incomes, the data including income, data income size,
Income time etc..User can be ranked up operation according to avail data, income time etc., and sorting operation will be completed by rear end.
(5) transaction verification.According to system requirements, Transaction Information is by behavior act current under preservation.To ensure letter of trading
The legitimacy of automatic verifying trading activity will not be packaged behaviour for illegal trading activity by the reasonability of breath, system
Make.The present embodiment uses ProofoF Work mechanism carries out packing verification operation to transaction, using Pow algorithm and passes through common recognition
Network carries out the shared of file, furthermore uses with most long-chain as main chain, realizes most long-chain common recognition algorithm.
The embodiment of the present invention, using block chain technology, this really weighs the fair disclosure that system realizes data trade, ensures transaction
Responsibility and right it is legal accurate, safeguard going on smoothly for data trade.Using the method for distributed open account book, own in guarantee system
Transaction it is legal and transparent, realize the decentralization that data are really weighed.Compared with conventional trading systems, which is greatly reduced
To the dependency degree of central node, the transaction data of user can be carried out safely and efficiently.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a computer-readable storage medium
In, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (7)
1. a kind of science data modeling and storage method based on block chain characterized by comprising
Based on target requirement, the entity of the science data modeling based on block chain is constructed；Wherein, the entity includes coin, hands over
Easy and block；
According to the entity, the structure table of each entity is established；
According to the structure table of each entity, the entire design of block chain is completed；Wherein, the Transaction Information packet of the block chain storage
Include: coin inputs information, coin output information and Transaction Details information.
2. the method according to claim 1, wherein described establish the structure table of each entity according to the entity,
Include:
According to coin entity, coin structure table is established；
According to transaction entity, structure of deal table is established；
According to block entity, block structure table is established.
3. according to the method described in claim 2, it is characterized in that, the structure table according to each entity, completes block chain
Entire design, comprising:
According to coin structure table, structure of deal table and block structure table, according to from the inside to the outside, design method from small to large is complete
At the entire design of block chain.
4. according to the method described in claim 2, it is characterized in that,
The field name of the coin structure table includes: the save location of coin, this value is unique；The number of coin under current location
Amount；The owner id of current coin, this value are unique；
The field name of the structure of deal table includes: all coin inputs, this coin is for buying data use, and these
Coin is not yet spent；All coin outputs, this coin are that the income side of transaction and the coin beyond transaction value are moved back
It changes；The time that current transaction generates, using Unix timing；The movement of this transaction is currently generated, wherein behavior act includes: purchase
Data, downloading data upload data, audit data, login system, Modify password, give password for change；Data seller, and this value
Uniquely；Data purchaser, and this value is unique；Currently trade the data id being related to, and this value is unique；The price currently traded；
The auditor id of current data；
The field name of the block structure table includes: the height of block, this value is incremented by as block generates；Current block produces
The raw time, using the Unix time；The hash value of a upper block is constructed and is verified for next block；All friendships of block
Easily；The proof of work value generated by distributed common recognition mechanism.
5. the method according to claim 1, wherein further include:
In the database by the data storage in Partial Block chain, and multiple indexes are established on the database.
6. according to the method described in claim 5, it is characterized in that, the database include: block table, tables of data, tran list,
Income accounting table and coin table；Wherein,
The field of the block table of the database includes: the unique identification of block, this value is uniquely used for distinguishing different blocks；Area
The height of block, another layer of meaning, that is, chronological order of elevation information, the birth of block are to be incremented by generate in strict accordance with the time；
The time that current block generates；The size of current block, default units are bytes；The number of transaction for including in current block, can
Ascending or descending order arrangement operation is carried out to block using this field；Current block hash value, for carrying out block hash retrieval；
The field of the tables of data of the database includes: data unique identification id, this value is unique；Data owner id；Data name
Claim, user is facilitated to browse purchase data；Data introduction facilitates user to check data specifying information；Current data uplink time, is adopted
With the Unix time；Data source；Data type；Data label；Data current review state；The md5 value of current data, for into
The verifying of row data uniqueness；The current size of data, default units KB；Data number of downloads, default value after data upload successfully
It is 0；Data purchase volume, data purchase can once download repeatedly；Data price；Data storage location；Data grading, is divided into 1-5
Grade, higher grade illustrates that the quality of data is better；Participate in the evaluation number of this data；
The field of the tran list of the database includes: transaction unique identification id；Data purchaser id；Data seller id；When
Before the data id that participates in business；The time currently traded；The price currently traded；Current transaction grading；Current data it is upper
Download time, avoid frequent downloads；
The field name of the income accounting table of the database includes: data unique identification id；The user name of current data income；
The income accounting of current beneficiary is realized for automating distribution of income；
The field name of the coin table of the database includes: coin unique identification id；The owner of current coin；Current coin
Whether spend, Timing Synchronization block chain data avoid malfunctioning；The generation time of coin；Coin quantity under current location.
7. according to the method described in claim 5, it is characterized by further comprising: being built based on the block chain and the database
The science data of block chain of being based on really weighs system.
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