CN109064335A - A kind of data trade method and device based on intelligent contract - Google Patents
A kind of data trade method and device based on intelligent contract Download PDFInfo
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- CN109064335A CN109064335A CN201810978789.6A CN201810978789A CN109064335A CN 109064335 A CN109064335 A CN 109064335A CN 201810978789 A CN201810978789 A CN 201810978789A CN 109064335 A CN109064335 A CN 109064335A
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- G—PHYSICS
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- 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
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Abstract
The present invention is suitable for block chain field, more particularly to a kind of data trade method and device based on intelligent contract, applied to data acquisition end, the described method includes: invocation target intelligence contract, the Intelligent target contract includes at least the gathering address of target data information, target DB amount information and data set provider；If the target data information meets prescribed requirement, transaction amount as defined in the target DB amount information is paid to the gathering address of the data set provider；If paying successfully, the target data information is received.The present invention is by being written intelligent contract for target data and being stored in block chain, data consumer need to only be called the intelligence contract in block chain by data acquisition end and execute contract regulation, just data trade can be completed, entire process of exchange is realized in the environment of decentralization, it avoids user data assets to be revealed or used without authorization by third party, has effectively ensured the information privacy safety of user.
Description
Technical field
The invention belongs to block chain fields, more particularly to a kind of data trade method and device based on intelligent contract.
Background technique
In big data era, the case where personal information is illegally collected and utilized, is very universal, and data monitoring is nowhere
Do not exist, these all bring grave danger, the development and traditional privacy laws have been out of step with the times to the information privacy of citizen
Trend.Become today of trend in the development and utilization of data resource, it is necessary to the carefully path of design information secret protection, with
Phase reaches the balance of freedom of information and secret protection.
However, the data trade platform in existing market is generally data owner by Data Hosting to centralization platform
In, trade matching is carried out by centralization platform, but centralization platform faces the suspicion and risk of leaking data, user is to center
Changing platform processes data does not have right to know；Therefore, the information privacy of user is extremely dangerous.
Summary of the invention
Based on this, it is necessary to for above-mentioned problem, provide a kind of data trade method and device based on intelligent contract.
In one embodiment of the invention, a kind of data trade method based on intelligent contract is provided, number is applied to
According to acquisition end, which comprises
Invocation target intelligence contract, the Intelligent target contract includes at least target data information, target DB amount is believed
The gathering address of breath and data set provider；
If the target data information meets prescribed requirement, the mark is paid to the gathering address of the data set provider
DB amount information as defined in transaction amount；
If paying successfully, the target data information is received.
Data trade method the present invention also provides another kind based on intelligent contract is applied to data and provides end, the side
Method includes:
Intelligent target is written into the gathering address information of target data information, target DB amount information and data set provider
Contract；
The Intelligent target contract is issued in block chain network, when the Intelligent target contract is called, if target
Data information meets prescribed requirement, and address of collecting money obtains defined transaction value, then data call person will obtain the target
Data information.
The present invention also provides a kind of data trade devices based on intelligent contract, are applied to data acquisition end, and feature exists
In described device includes:
Call unit, is used for invocation target intelligence contract, and the Intelligent target contract includes at least target data information, mark
DB amount information and data set provider gathering address；
Processing unit, if meeting prescribed requirement for the target data information, the gathering to the data set provider
Address pays transaction amount as defined in the target DB amount information；
Receiving unit, if receiving the target data information for paying successfully.
The present invention also provides a kind of data trade devices based on intelligent contract, are applied to data and provide end, described device
Include:
Contract production unit, for by the gathering of target data information, target DB amount information and data set provider
Intelligent target contract is written in location information；
Contract release unit, for issuing the Intelligent target contract in block chain network, when the Intelligent target closes
When about called, if target data information meets prescribed requirement, and address of collecting money obtains defined transaction value, then data call
Person will obtain the target data information.
The above-mentioned data trade method, apparatus based on intelligent contract, by the way that intelligent contract is written in target data and is saved
In block chain, data consumer need to only be called the intelligence contract in block chain by data acquisition end and execute contract rule
It is fixed, data trade just can be completed, entire process of exchange is realized in the environment of decentralization, and user data assets are avoided
It is revealed or used without authorization by third-party platform, effectively ensured the information privacy safety of user.
Detailed description of the invention
Fig. 1 is a kind of flow chart of data trade method based on intelligent contract provided in an embodiment of the present invention；
Fig. 2 is the flow chart of another data trade method based on intelligent contract provided in an embodiment of the present invention；
Fig. 3 is a kind of module map of data trade device based on intelligent contract provided in an embodiment of the present invention；
Fig. 4 is the module map of another data trade device based on intelligent contract provided in an embodiment of the present 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.
It is appreciated that term " first " used in this application, " second " etc. can be used to describe various elements herein,
But unless stated otherwise, these elements should not be limited by these terms.These terms are only used to by first element and another yuan
Part is distinguished.For example, in the case where not departing from scope of the present application, the first xx script can be known as the 2nd xx script,
And similarly, the 2nd xx script can be known as the first xx script.
For the present invention by the way that intelligent contract is written in target data and is stored in block chain, data consumer need to only pass through number
The intelligence contract is called in block chain according to acquisition end and executes contract regulation, just can complete data trade, entire process of exchange
All it is to be realized in the environment of decentralization, avoids user data assets and revealed or used without authorization by third party, effectively protect
The information privacy safety of user is hindered.
Embodiment one
Fig. 1 is a kind of data trade method based on intelligent contract provided in an embodiment of the present invention, is applied to data acquisition
End, wherein the data acquisition end can be any node server in block chain network, the data acquisition end master in this method
It is used for the request call specific data into block chain network, and the specific data is to be issued by way of intelligent contract in area
In block chain network；It is as follows that process is embodied:
Step S201, invocation target intelligence contract, the Intelligent target contract include at least target data information, target number
According to amount information and the gathering address of data set provider.
The method of the present invention is based on block chain network and realizes that its process, block chain technology are also referred to as distributed account book technology,
It is a kind of internet database technology, its main feature is that decentralization, open and clear.
Introducing intelligent contract technology in block chain technology at present becomes a kind of new trend, intelligent contract be one kind be intended to
The computer protocol of contract is propagated, verifies or executed to information-based mode, intelligent contract allow in no third-party situation into
Transaction that row is credible, these transaction are traceable and irreversible.
In one embodiment of the invention, target data information, target DB amount can at least be written in intelligent contract
The gathering address of information and data set provider.
Goal intelligence contract is the intelligent contract for containing data acquisition end and wanting the target data information obtained.
As a specific embodiment of the invention, the following table shows a kind of basic data structures of intelligent contract:
It is using data as Object of Transaction in the embodiment of the present invention, in conjunction with shown in table, above-mentioned target data information is wrapped
Data to be transacted are contained, " data " item in correspondence in table；Target DB amount information then identifies the friendship of target data
Easy price/amount of money, " fee " item of table in correspondence；The gathering address of data set provider be then used to allowing data consumer/obtain taker/
Buyer pays to data set provider, " address " item of table in correspondence, generally can by block chain
The forms such as token (token), digital cash are paid；And " expire " item, " timestamp " Xiang Ze are respectively used to characterization number
According to expired time and data uplink time.
Particular content, the structure of a kind of target data information being written to intelligent contract are shown below with a specific example
(only presenting a demonstration):
In one embodiment of the invention, when intelligent contract, which provides end by data, to be published in block chain network, meeting
Intelligent contract address is automatically generated by block chain, therefore step S201 specifically can intelligently be closed by following steps come invocation target
About:
Data, which are issued, to block chain network uses request；
Receive the Intelligent target contract address that the block chain network returns；
The Intelligent target contract is obtained according to Intelligent target contract address.
In the above process, data acquisition end can directly get Intelligent target contract, contact data without third party
It achieves that.
Step S202, if the target data information meets prescribed requirement, to the gathering address of the data set provider
Pay transaction amount as defined in the target DB amount information.
In embodiments of the present invention, generally, effective time limit, i.e. mesh can be all arranged in the target data information in intelligent contract
Marking includes data uplink time and data expired time in intelligent contract, compare " expire " item in table above,
It is expired to may determine that the target data information in intelligent contract is verified by the two times for " timestamp " item；When data obtain
After taking end to have invoked intelligent contract, can first judge whether data are legal effectively, then just execute delivery operation, specific step
It is as follows:
According to the data uplink time and data expired time, judge whether the target data information is expired；
If the target data information is not out of date, the target data are paid to the gathering address of the data set provider
Transaction amount as defined in amount information；
If the target data information is out of date, target data information obtains failure.
Step S203 receives the target data information if paying successfully.
In embodiments of the present invention, if target data information is not out of date, and data acquisition end pays success, Ye Jihe to it
It about comes into force, then data acquisition end will obtain the target data information being written in Intelligent target contract.
In one embodiment of the invention, if the target data information meets prescribed requirement, to the number
Transaction amount as defined in the target DB amount information is paid according to the gathering address of supplier, later further include:
If payment failure, target data information obtain failure.
In the above embodiment of the present invention, by the way that intelligent contract is written in target data and is stored in block chain, data
User need to only be called the intelligence contract in block chain by data acquisition end and execute contract regulation, and data friendship just can be completed
Easily, entire process of exchange is realized in the environment of decentralization, is avoided user data assets and is revealed or arrogated to oneself by third party
From using, the information privacy safety of user has effectively been ensured.
Embodiment two:
Fig. 2 shows another embodiment of the invention, provide a kind of data trade method based on intelligent contract, answer
End is provided for data, wherein the data, which provide end, can be any node server in block chain network, in this method
Data acquisition end is mainly used for the intelligent contract that the publication into block chain network includes target data, for needing to use the mark
The data acquisition ends of data execute contract to obtain data call permission, specific implementation process is as follows:
Step S301 writes the gathering address information of target data information, target DB amount information and data set provider
Enter Intelligent target contract.
Step S302 issues the Intelligent target contract in block chain network, when the Intelligent target contract is called
When, if target data information meets prescribed requirement, and address of collecting money obtains defined transaction value, then data call person will obtain
The target data information.
The method of the present invention is based on block chain network and realizes that its process, block chain technology are also referred to as distributed account book technology,
It is a kind of internet database technology, its main feature is that decentralization, open and clear.
Introducing intelligent contract technology in block chain technology at present becomes a kind of new trend, intelligent contract be one kind be intended to
The computer protocol of contract is propagated, verifies or executed to information-based mode, intelligent contract allow in no third-party situation into
Transaction that row is credible, these transaction are traceable and irreversible.
In one embodiment of the invention, target data information, target DB amount can at least be written in intelligent contract
The gathering address of information and data set provider.
It is using data as Object of Transaction in the embodiment of the present invention, goal intelligence contract contains target data
The intelligent contract of information.
As a specific embodiment of the invention, provided in order to illustrate intelligent contract, following table described in step S301
A kind of basic data structure of intelligent contract:
In conjunction with shown in table, above-mentioned target data information contains data to be transacted, in correspondence in table
" data " item；Target DB amount information then identifies transaction value/amount of money of target data, " fee " item of table in correspondence；Number
Then it is used to allowing data consumer/obtain taker/buyer to pay to data set provider according to the gathering address of supplier, in correspondence
" address " item of table, generally can by block chain token (token), the forms such as digital cash are paid；And
" expire " item, " timestamp " Xiang Ze are respectively used to characterize data expired time and data uplink time.
Particular content, the structure of a kind of target data information being written to intelligent contract are shown below with a specific example
(only presenting a demonstration):
In embodiments of the present invention, after above-mentioned Intelligent target contract completes, after being published in block chain network, meeting
Generate Intelligent target contract address, when some request of data end/acquisition end in block chain network/using end need use its mark
Data information when, the Intelligent target contract call by location Intelligent target contract can be passed through.
When the Intelligent target contract is called, caller executes treaty content, if target data information meets regulation
It is required that (whether judging target data information with data expired time generally by the data uplink time on Intelligent target contract
It is expired), and address of collecting money obtains defined transaction value, then data call person will obtain the target data information, that is, realize
Data trade.
The above process is realized in the environment of decentralization, avoid user data assets by third party reveal or without authorization
It uses, has effectively ensured the information privacy safety of user.
Embodiment three
Fig. 3 is a kind of data trade device based on intelligent contract provided in an embodiment of the present invention, is applied to data acquisition
End, wherein the data acquisition end can be any node server in block chain network, the data acquisition end master in this method
It is used for the request call specific data into block chain network, and the specific data is to be issued by way of intelligent contract in area
In block chain network；It is specific as follows:
Call unit 110, is used for invocation target intelligence contract, and the Intelligent target contract is believed including at least target data
Breath, target DB amount information and the gathering address of data set provider.
The method of the present invention is based on block chain network and realizes that its process, block chain technology are also referred to as distributed account book technology,
It is a kind of internet database technology, its main feature is that decentralization, open and clear.
Introducing intelligent contract technology in block chain technology at present becomes a kind of new trend, intelligent contract be one kind be intended to
The computer protocol of contract is propagated, verifies or executed to information-based mode, intelligent contract allow in no third-party situation into
Transaction that row is credible, these transaction are traceable and irreversible.
In one embodiment of the invention, target data information, target DB amount can at least be written in intelligent contract
The gathering address of information and data set provider.
Goal intelligence contract is the intelligent contract for containing data acquisition end and wanting the target data information obtained.
As a specific embodiment of the invention, the following table shows a kind of basic data structures of intelligent contract:
It is using data as Object of Transaction in the embodiment of the present invention, in conjunction with shown in table, above-mentioned target data information is wrapped
Data to be transacted are contained, " data " item in correspondence in table；Target DB amount information then identifies the friendship of target data
Easy price/amount of money, " fee " item of table in correspondence；The gathering address of data set provider be then used to allowing data consumer/obtain taker/
Buyer pays to data set provider, " address " item of table in correspondence, generally can by block chain
The forms such as token (token), digital cash are paid；And " expire " item, " timestamp " Xiang Ze are respectively used to characterization number
According to expired time and data uplink time.
Particular content, the structure of a kind of target data information being written to intelligent contract are shown below with a specific example
(only presenting a demonstration):
In one embodiment of the invention, when intelligent contract, which provides end by data, to be published in block chain network, meeting
Intelligent contract address is automatically generated by block chain, therefore call unit is specifically also used to:
Data, which are issued, to block chain network uses request；
Receive the Intelligent target contract address that the block chain network returns；
The Intelligent target contract is obtained according to Intelligent target contract address.
In the above process, data acquisition end can directly get Intelligent target contract, contact data without third party
It achieves that.
Processing unit 120, if meeting prescribed requirement for the target data information, to the receipts of the data set provider
Money address pays transaction amount as defined in the target DB amount information.
In embodiments of the present invention, generally, effective time limit, i.e. mesh can be all arranged in the target data information in intelligent contract
Marking includes data uplink time and data expired time in intelligent contract, compare " expire " item in table above,
It is expired to may determine that the target data information in intelligent contract is verified by the two times for " timestamp " item；When data obtain
After taking end to have invoked intelligent contract, can first judge whether data are legal effectively, then just execute delivery operation, specific step
It is as follows:
According to the data uplink time and data expired time, judge whether the target data information is expired；
If the target data information is not out of date, the target data are paid to the gathering address of the data set provider
Transaction amount as defined in amount information；
If the target data information is out of date, target data information obtains failure.
Receiving unit 130, if receiving the target data information for paying successfully.
In embodiments of the present invention, if target data information is not out of date, and data acquisition end pays success, Ye Jihe to it
It about comes into force, then data acquisition end will obtain the target data information being written in Intelligent target contract.
In one embodiment of the invention, if the target data information meets prescribed requirement, to the number
Transaction amount as defined in the target DB amount information is paid according to the gathering address of supplier, later further include:
If payment failure, target data information obtain failure.
In the above embodiment of the present invention, by the way that intelligent contract is written in target data and is stored in block chain, data
User need to only be called the intelligence contract in block chain by data acquisition end and execute contract regulation, and data friendship just can be completed
Easily, entire process of exchange is realized in the environment of decentralization, is avoided user data assets and is revealed or arrogated to oneself by third party
From using, the information privacy safety of user has effectively been ensured.
Example IV:
Fig. 4 shows another embodiment of the invention, provides a kind of data trade device based on intelligent contract, answers
End is provided for data, wherein the data, which provide end, can be any node server in block chain network, in this method
Data acquisition end is mainly used for the intelligent contract that the publication into block chain network includes target data, for needing to use the mark
Data data acquisition end execute contract to obtain data call permission, specifically include:
Contract production unit 210, for by the gathering of target data information, target DB amount information and data set provider
Intelligent target contract is written in address information.
Contract release unit 220, for issuing the Intelligent target contract in block chain network, when the Intelligent target
When contract is called, if target data information meets prescribed requirement, and address of collecting money obtains defined transaction value, then data tune
User will obtain the target data information.
The method of the present invention is based on block chain network and realizes that its process, block chain technology are also referred to as distributed account book technology,
It is a kind of internet database technology, its main feature is that decentralization, open and clear.
Introducing intelligent contract technology in block chain technology at present becomes a kind of new trend, intelligent contract be one kind be intended to
The computer protocol of contract is propagated, verifies or executed to information-based mode, intelligent contract allow in no third-party situation into
Transaction that row is credible, these transaction are traceable and irreversible.
In one embodiment of the invention, target data information, target DB amount can at least be written in intelligent contract
The gathering address of information and data set provider.
It is using data as Object of Transaction in the embodiment of the present invention, goal intelligence contract contains target data
The intelligent contract of information.
As a specific embodiment of the invention, provided in order to illustrate intelligent contract, following table described in step S301
A kind of basic data structure of intelligent contract:
In conjunction with shown in table, above-mentioned target data information contains data to be transacted, in correspondence in table
" data " item；Target DB amount information then identifies transaction value/amount of money of target data, " fee " item of table in correspondence；Number
Then it is used to allowing data consumer/obtain taker/buyer to pay to data set provider according to the gathering address of supplier, in correspondence
" address " item of table, generally can by block chain token (token), the forms such as digital cash are paid；And
" expire " item, " timestamp " Xiang Ze are respectively used to characterize data expired time and data uplink time.
Particular content, the structure of a kind of target data information being written to intelligent contract are shown below with a specific example
(only presenting a demonstration):
In embodiments of the present invention, after above-mentioned Intelligent target contract completes, after being published in block chain network, meeting
Generate Intelligent target contract address, when some request of data end/acquisition end in block chain network/using end need use its mark
Data information when, the Intelligent target contract call by location Intelligent target contract can be passed through.
When the Intelligent target contract is called, caller executes treaty content, if target data information meets regulation
It is required that (whether judging target data information with data expired time generally by the data uplink time on Intelligent target contract
It is expired), and address of collecting money obtains defined transaction value, then data call person will obtain the target data information, that is, realize
Data trade.
The above process is realized in the environment of decentralization, avoid user data assets by third party reveal or without authorization
It uses, has effectively ensured the information privacy safety of user.
Although should be understood that various embodiments of the present invention flow chart in each step according to arrow instruction successively
It has been shown that, but these steps are not that the inevitable sequence according to arrow instruction successively executes.Unless expressly state otherwise herein,
There is no stringent sequences to limit for the execution of these steps, these steps can execute in other order.Moreover, each embodiment
In at least part step may include that perhaps these sub-steps of multiple stages or stage are not necessarily multiple sub-steps
Completion is executed in synchronization, but can be executed at different times, the execution in these sub-steps or stage sequence is not yet
Necessarily successively carry out, but can be at least part of the sub-step or stage of other steps or other steps in turn
Or it alternately executes.
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 non-volatile computer and can be read
In storage medium, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, provided herein
Each embodiment used in any reference to memory, storage, database or other media, may each comprise non-volatile
And/or volatile memory.Nonvolatile memory may include that read-only memory (ROM), programming ROM (PROM), electricity can be compiled
Journey ROM (EPROM), electrically erasable ROM (EEPROM) or flash memory.Volatile memory may include random access memory
(RAM) or external cache.By way of illustration and not limitation, RAM is available in many forms, such as static state RAM
(SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate sdram (DDRSDRAM), enhanced SDRAM
(ESDRAM), synchronization link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) directly RAM (RDRAM), straight
Connect memory bus dynamic ram (DRDRAM) and memory bus dynamic ram (RDRAM) etc..
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of data trade method based on intelligent contract is applied to data acquisition end, which is characterized in that the method packet
It includes:
Invocation target intelligence contract, the Intelligent target contract include at least target data information, target DB amount information and
The gathering address of data set provider；
If the target data information meets prescribed requirement, the target number is paid to the gathering address of the data set provider
According to transaction amount as defined in amount information；
If paying successfully, the target data information is received.
2. the method as described in claim 1, which is characterized in that the step of the invocation target intelligence contract specifically:
Data, which are issued, to block chain network uses request；
Receive the Intelligent target contract address that the block chain network returns；
The Intelligent target contract is obtained according to Intelligent target contract address.
3. the method as described in claim 1, which is characterized in that the Intelligent target contract further includes data uplink time and number
According to expired time；
If the target data information meets prescribed requirement, the mark is paid to the gathering address of the data set provider
DB amount information as defined in transaction amount the step of specifically:
According to the data uplink time and data expired time, judge whether the target data information is expired；
If the target data information is not out of date, the target DB amount is paid to the gathering address of the data set provider
Transaction amount as defined in information；
If the target data information is out of date, target data information obtains failure.
4. the method as described in claim 1, which is characterized in that if the target data information meets prescribed requirement,
Transaction amount as defined in the target DB amount information is paid to the gathering address of the data set provider, later further include:
If payment failure, target data information obtain failure.
5. a kind of data trade method based on intelligent contract is applied to data and provides end, which is characterized in that the method packet
It includes:
The gathering address information write-in Intelligent target of target data information, target DB amount information and data set provider is closed
About；
The Intelligent target contract is issued in block chain network, when the Intelligent target contract is called, if target data
Information meets prescribed requirement, and address of collecting money obtains defined transaction value, then data call person will obtain the target data
Information.
6. method as claimed in claim 5, which is characterized in that the Intelligent target contract further includes data uplink time and number
According to expired time, for judging whether the target data information is expired.
7. a kind of data trade device based on intelligent contract is applied to data acquisition end, which is characterized in that described device packet
It includes:
Call unit, is used for invocation target intelligence contract, and the Intelligent target contract includes at least target data information, target number
According to amount information and the gathering address of data set provider；
Processing unit, if meeting prescribed requirement for the target data information, to the gathering address of the data set provider
Pay transaction amount as defined in the target DB amount information；
Receiving unit, if receiving the target data information for paying successfully.
8. device as claimed in claim 7, which is characterized in that the call unit is used for:
Data, which are issued, to block chain network uses request；
Receive the Intelligent target contract address that the block chain network returns；
The Intelligent target contract is obtained according to Intelligent target contract address.
9. device as claimed in claim 7, which is characterized in that the Intelligent target contract further includes data uplink time and number
According to expired time；
The call unit is used for:
According to the data uplink time and data expired time, judge whether the target data information is expired；
If the target data information is not out of date, the target DB amount is paid to the gathering address of the data set provider
Transaction amount as defined in information；
If the target data information is out of date, target data information obtains failure.
10. a kind of data trade device based on intelligent contract is applied to data and provides end, which is characterized in that described device packet
It includes:
Contract production unit, for believing the gathering address of target data information, target DB amount information and data set provider
Breath write-in Intelligent target contract；
Contract release unit, for issuing the Intelligent target contract in block chain network, when the Intelligent target contract quilt
When calling, if target data information meets prescribed requirement, and address of collecting money obtains defined transaction value, then data call person will
Obtain the target data information.
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| CN201810978789.6A CN109064335A (en) | 2018-08-27 | 2018-08-27 | A kind of data trade method and device based on intelligent contract |
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| CN201810978789.6A CN109064335A (en) | 2018-08-27 | 2018-08-27 | A kind of data trade method and device based on intelligent contract |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109670793A (en) * | 2018-12-26 | 2019-04-23 | 中国银联股份有限公司 | A kind of method and device of the digital asset validity period processing based on block chain |
| CN111309931A (en) * | 2020-05-09 | 2020-06-19 | 支付宝(杭州)信息技术有限公司 | Transaction method and device based on block chain, electronic equipment and storage medium |
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