CN107862782A - Drawing method and device based on ether mill block chain - Google Patents
Drawing method and device based on ether mill block chain Download PDFInfo
- Publication number
- CN107862782A CN107862782A CN201711020750.5A CN201711020750A CN107862782A CN 107862782 A CN107862782 A CN 107862782A CN 201711020750 A CN201711020750 A CN 201711020750A CN 107862782 A CN107862782 A CN 107862782A
- Authority
- CN
- China
- Prior art keywords
- lot
- ether mill
- block chain
- lottery program
- program
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C15/00—Generating random numbers; Lottery apparatus
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3236—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using cryptographic hash functions
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The present invention provides a kind of drawing method and device based on ether mill block chain, and methods described includes：Default lottery program is set on the block chain of ether mill, and when performing lottery program in ether mill, receive input by lot list object, lot condition, lottery program is performed as lot seed using the cryptographic Hash of newest block and obtains lot result and shows, open lottery program can be realized, lot is performed on the block chain of ether mill, and using the newest block Hash in ether mill as lot random number, ensures the fairness of random number.
Description
Technical field
The present invention relates to ether mill applied technical field, more particularly to a kind of drawing method based on ether mill block chain and
Device.
Background technology
Drawing lots, there play the role of in daily life and some systems to be important, as welfare lottery ticket, the car plate number of shaking, public affairs are rented a house and taken out
Label, self-housing are drawn lots.Current Draw lots System typically has two classes：It is class in kind and software class.Large-scale Draw lots System one
As be all software systems, and the Draw lots System of software class is typically all the Draw lots System of centralization, and most system is to participating in
It is a black box for the user of lot, the fairness of program needs severe to depend on opaque system design.In order to improve
Fairness, software class system may produce random number, such as twin color ball by equipment in kind, and be carried out directly when producing random number
Broadcast.
But ensure Draw lots System random seed not by human intervention, disclose whole lot data and rule, specify at random
Allow the recurrence of lot process lot could be allowed to become more fair during seed.But current Draw lots System is usually a black box
Son, external staff do not know whether Draw lots System is really run by rule, though some systems disclose algorithm, but may not
All lot data are disclosed, causes lot process can not reappear in third party, fairness can not be verified.
The content of the invention
The present invention provides a kind of drawing method and device based on ether mill block chain, for solving to draw lots in the prior art
Be difficult to it is transparent, the problem of fairness can not be verified.
In a first aspect, the present invention provides a kind of drawing method based on ether mill block chain, including：
Default lottery program is set on the block chain of ether mill；
Ether mill perform lottery program when, receive input by lot list object, lot condition and lot seed, institute
State the cryptographic Hash that lot seed is newest block；
Lot result and is obtained simultaneously at lottery program according to described performed by lot list object, lot condition and lot seed
Display.
Alternatively, the lot condition includes ether mill wallet address and lot information, and the lot information includes drawing lots
Title, the total and middle label number of object for participating in lot.
Alternatively, in addition to：When setting default lottery program on the block chain of ether mill, lottery program is put into public affairs
Open in database.
Alternatively, it is described that object identity corresponding to middle label sequence number and the middle label sequence number is included by lot list object
Information.
Second aspect, the present invention provide a kind of lot-drawing device based on ether mill block chain, including：
Setup module, for setting default lottery program on the block chain of ether mill；
Receiving module, for ether mill perform lottery program when, receive input by lot list object, lot condition
With lot seed, the lot seed is the cryptographic Hash of newest block；
Execution module, for performing lottery program simultaneously by lot list object, lot condition and lot seed according to described
Obtain lot result and show.
Alternatively, the lot condition includes ether mill wallet address and lot information, and the lot information includes drawing lots
Title, the total and middle label number of object for participating in lot.
Alternatively, in addition to module is disclosed, for when setting default lottery program on the block chain of ether mill, will draw lots
Program is put into public database.
Alternatively, it is described that object identity corresponding to middle label sequence number and the middle label sequence number is included by lot list object
Information.
The third aspect, the present invention provide a kind of electronic equipment, including：Processor, memory, bus and it is stored in memory
Computer program that is upper and can running on a processor；
Wherein, the processor, memory complete mutual communication by the bus；
Method described above is realized described in the computing device during computer program.
Fourth aspect, the present invention provide a kind of non-transient computer readable storage medium storing program for executing, and the non-transient computer is readable
Computer program is stored with storage medium, the computer program realizes method described above when being executed by processor.
As shown from the above technical solution, drawing method and dress provided in an embodiment of the present invention based on ether mill block chain
Put, by setting default lottery program on the block chain of ether mill, and in ether mill execution lottery program, receive input
By lot list object, lot condition, lottery program is performed as lot seed using the cryptographic Hash of newest block and obtains lot knot
Fruit simultaneously shows, can realize open lottery program, lot is performed on the block chain of ether mill, and breathe out with the newest block in ether mill
It is uncommon to be used as lot random number, ensure the fairness of random number.
Brief description of the drawings
Fig. 1 is the schematic flow sheet for the drawing method based on ether mill block chain that one embodiment of the invention provides；
Fig. 2 is the structural representation for the lot-drawing device based on ether mill block chain that one embodiment of the invention provides；
Fig. 3 is the structural representation for the electronic equipment that one embodiment of the invention provides.
Embodiment
With reference to the accompanying drawings and examples, the embodiment of the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
Fig. 1 shows that one embodiment of the invention provides a kind of drawing method based on ether mill block chain, including：
S11, default lottery program is set on the block chain of ether mill；
S12, ether mill perform lottery program when, receive input by lot list object, lot condition and draw lots kind
Son, the lot seed are the cryptographic Hash of newest block；
S13, according to it is described by lot list object, lot condition and lot seed perform lottery program and obtain lot knot
Fruit simultaneously shows.
For above-mentioned steps S11- steps S13, it is necessary to illustrate, in embodiments of the present invention, ether mill
(Ethereum) it is a first floor system that intelligent contract can be realized on block chain, is increased income.Ether mill is a platform, is made
Developer can establish and issue Distributed Application of future generation.Block chain (Blockchain) is the Floor layer Technology of bit coin,
As a database account book, all transaction records are recorded.In the present embodiment, default take out is set on the block chain of ether mill
Program is signed, the lottery program is a lot function, for by the drawing of lot object.The lottery program is not set specifically
Put on which block on block chain, carry out lot operation on each every block, the lottery program can be called to enter
Exercise and use.In addition, the lottery program can be put into public database, it is easy to query the group of lot link and personal calling journey
Sequence, to show justice.
In the present embodiment, it is some group's (such as enterprise, public institution, campaign owners) by lot list object
Set, it includes the file of lot object identity information and middle label sequence number.In order to reach fair purpose of drawing lots, it is impossible to
The cryptographic Hash of existing block is used as lot seed, in ether mill during execution lottery program, takes the cryptographic Hash of newest block, as taking out
Sign seed.I.e.：As ether mill block chain has 10 blocks, the lot journey disposed on ether mill is called during this time
Sequence can just perform lottery program, it is necessary to after the 11st block is dug out, and when performing lottery program, use the 11st block
Cryptographic Hash.So do the randomness that increase is drawn lots, unpredictability.
Now user can be inputted by lot list object, and system, which receives, can be stored in list newly by lot list object
Build on block.
In order to determine that lot main body is designated parties (such as enterprise, public institution, campaign owners), rather than other are any
The pseudo-operation that group and people are carried out.Therefore, system needs to obtain the ether mill wallet address of lot main body, is started using ether coin
Follow-up drawing.Such as unit A to be drawn lots, it is necessary to allow other people know definitely be unit A start drawing.
Ether mill wallet address can be mapped to the identity information of lot main body, can be obtained by identity information corresponding
By lot list object, and then determine a certain block of block chain.
In embodiments of the present invention, it is necessary to condition of drawing lots during lot.Therefore, above-mentioned ether mill wallet address
For lot condition, in addition, also include lot information, such as lot title, the total and middle label number of object drawn lots is participated in.
After lot condition determines, the lottery program is called on the block where the pending list object by lot
According to the lot condition and it is pending drawn lots by lot list object, obtain lot result simultaneously the lot result is shown
Show.
Specific lot principle can be specific as follows：
Illustrated exemplified by extracting the M typical cases luckily counted out from N number of number and drawing lots.
Assuming that N >=M, define N number of number be respectively n [0], n [1] ..., n [N-1].
Define the lucky number numbers of M be respectively m [0], m [1] ..., m [M-1].
It is h that definition, which performs corresponding newly-built ether mill block cryptographic Hash when lottery program performs,.
The 1st lucky number drawn:M [0]=n [h%N], wherein h%N is complementation.
N [h%N] is removed from N number of number, the number reach after n [h%N], remaining N-1 number is respectively n [0], n
[1]、…、n[N-2]。
The 2nd lucky number drawn:M [1]=n [h% (N-1)].
Extract out successively the 3rd, the 4th ..., m-th luckily counts.
If in addition, having team or personal query lot process, lottery program and lot random number can be called to be repeated
Checking, embodies open and clear property.I.e. user can will by lot list object, just used lot seed and lot condition
Input in the lump, with just used lot seed is verified, drawing is performed after being proved to be successful again, so as to embody public affairs
Open the transparency.
Drawing method provided in an embodiment of the present invention based on ether mill block chain, by being set on the block chain of ether mill
Default lottery program, and when performing lottery program in ether mill, receive input by lot list object, lot condition, with
The cryptographic Hash of newest block is that lot seed performs lottery program and obtains lot result and show, can realize open lot journey
Sequence, lot is performed on the block chain of ether mill, and using the newest block Hash in ether mill as lot random number, ensure random number
Fairness.
Fig. 2 shows a kind of lot-drawing device based on ether mill block chain that one embodiment of the invention provides, including sets
Module 21, receiving module 22 and execution module 23, wherein：
Setup module 21, for setting default lottery program on the block chain of ether mill；
Receiving module 22, for ether mill perform lottery program when, receive input by lot list object, lot bar
Part and lot seed, the lot seed are the cryptographic Hash of newest block；
Execution module 23, for performing lottery program by lot list object, lot condition and lot seed according to described
And obtain lot result and show.
Because described device of the embodiment of the present invention is identical with the principle of above-described embodiment methods described, for more detailed
Explain that content will not be repeated here.
It should be noted that can be by hardware processor (hardware processor) come real in the embodiment of the present invention
Existing related function module.
Lot-drawing device provided in an embodiment of the present invention based on ether mill block chain, by being set on the block chain of ether mill
Default lottery program, and when performing lottery program in ether mill, receive input by lot list object, lot condition, with
The cryptographic Hash of newest block is that lot seed performs lottery program and obtains lot result and show, can realize open lot journey
Sequence, lot is performed on the block chain of ether mill, and using the newest block Hash in ether mill as lot random number, ensure random number
Fairness.
Fig. 3 shows a kind of electronic equipment that one embodiment of the invention provides, including：Processor 301, the and of memory 302
Bus 303, wherein,
The processor and memory complete mutual communication by the bus；
The memory storage has can be by the programmed instruction of the computing device, to perform above-mentioned each method embodiment institute
The method of offer, such as including：Default lottery program is set on the block chain of ether mill；Lottery program is performed in ether mill
When, receive input by lot list object, lot condition and lot seed, the lot seed is the Hash of newest block
Value；Performed lottery program according to described and obtained lot result and show by lot list object, lot condition and lot seed.
A kind of non-transient computer readable storage medium storing program for executing that one embodiment of the invention provides, the non-transient computer are readable
Storage medium stores computer instruction, and the computer instruction makes the computer perform what above-mentioned each method embodiment was provided
Method, such as including：Default lottery program is set on the block chain of ether mill；When performing lottery program in ether mill, receive
Input by lot list object, lot condition and lot seed, the lot seed is the cryptographic Hash of newest block；According to institute
State and performed lottery program and obtained lot result and show by lot list object, lot condition and lot seed.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included some features rather than further feature, but the combination of the feature of different embodiments means in of the invention
Within the scope of and form different embodiments.For example, in the following claims, embodiment claimed is appointed
One of meaning mode can use in any combination.
It should be noted that the present invention will be described rather than limits the invention for above-described embodiment, and ability
Field technique personnel can design alternative embodiment without departing from the scope of the appended claims.In the claims,
Any reference symbol between bracket should not be configured to limitations on claims.Word "comprising" does not exclude the presence of not
Element or step listed in the claims.Word "a" or "an" before element does not exclude the presence of multiple such
Element.The present invention can be by means of including the hardware of some different elements and being come by means of properly programmed computer real
It is existing.In if the unit claim of equipment for drying is listed, several in these devices can be by same hardware branch
To embody.The use of word first, second, and third does not indicate that any order.These words can be explained and run after fame
Claim.
One of ordinary skill in the art will appreciate that：Various embodiments above is merely illustrative of the technical solution of the present invention, and
It is non-that it is limited；Although the present invention is described in detail with reference to foregoing embodiments, one of ordinary skill in the art
It should be understood that：It can still modify to the technical scheme described in foregoing embodiments, either to which part or
All technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this hair
Bright claim limited range.
Claims (10)
- A kind of 1. drawing method based on ether mill block chain, it is characterised in that including：Default lottery program is set on the block chain of ether mill；When performing lottery program in ether mill, receive input by lot list object, lot condition and lot seed, it is described to take out Sign the cryptographic Hash that seed is newest block；Performed lottery program according to described and obtained lot result and show by lot list object, lot condition and lot seed Show.
- 2. according to the method for claim 1, it is characterised in that the lot condition includes ether mill wallet address and lot Information, the lot information include lot title, participate in the total and middle label number of object of lot.
- 3. according to the method for claim 1, it is characterised in that also include：Default take out is set on the block chain of ether mill When signing program, lottery program is put into public database.
- 4. according to the method for claim 1, it is characterised in that described that middle label sequence number and institute are included by lot list object State object identity information corresponding to label sequence number.
- A kind of 5. lot-drawing device based on ether mill block chain, it is characterised in that including：Setup module, for setting default lottery program on the block chain of ether mill；Receiving module, for ether mill perform lottery program when, receive input by lot list object, lot condition and take out Seed is signed, the lot seed is the cryptographic Hash of newest block；Execution module, for lottery program and being obtained according to described performed by lot list object, lot condition and lot seed Lot result is simultaneously shown.
- 6. device according to claim 5, it is characterised in that the lot condition includes ether mill wallet address and lot Information, the lot information include lot title, participate in the total and middle label number of object of lot.
- 7. device according to claim 5, it is characterised in that also include open module, in ether mill block chain When default lottery program is set, lottery program is put into public database.
- 8. device according to claim 5, it is characterised in that described that middle label sequence number and institute are included by lot list object State object identity information corresponding to label sequence number.
- 9. a kind of electronic equipment, it is characterised in that including：Processor, memory, bus and storage on a memory and can located The computer program run on reason device；Wherein, the processor, memory complete mutual communication by the bus；The method as any one of claim 1-4 is realized described in the computing device during computer program.
- 10. a kind of non-transient computer readable storage medium storing program for executing, it is characterised in that on the non-transient computer readable storage medium storing program for executing Computer program is stored with, the side as any one of claim 1-4 is realized when the computer program is executed by processor Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711020750.5A CN107862782B (en) | 2017-10-27 | 2017-10-27 | Lottery drawing method and device based on Ether house block chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711020750.5A CN107862782B (en) | 2017-10-27 | 2017-10-27 | Lottery drawing method and device based on Ether house block chain |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107862782A true CN107862782A (en) | 2018-03-30 |
| CN107862782B CN107862782B (en) | 2020-11-13 |
Family
ID=61697887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711020750.5A Active CN107862782B (en) | 2017-10-27 | 2017-10-27 | Lottery drawing method and device based on Ether house block chain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107862782B (en) |
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108648323A (en) * | 2018-05-10 | 2018-10-12 | 广州市申迪计算机系统有限公司 | Choosing method, device, computer equipment and the storage medium of target information |
| CN108898729A (en) * | 2018-05-10 | 2018-11-27 | 电子科技大学 | A kind of fair winners' announcement in lottery method based on block chain |
| CN109583892A (en) * | 2018-11-21 | 2019-04-05 | 安徽高山科技有限公司 | A kind of random number selecting method in block chain |
| CN109615370A (en) * | 2018-10-25 | 2019-04-12 | 阿里巴巴集团控股有限公司 | Object select method and device, electronic equipment |
| CN109615422A (en) * | 2018-11-29 | 2019-04-12 | 哈希未来(北京)科技有限公司 | Competing pumping method, system and storage medium based on block chain |
| CN109636998A (en) * | 2019-01-09 | 2019-04-16 | 山东浪潮质量链科技有限公司 | A kind of method and device drawn a lottery using block chain |
| CN109671206A (en) * | 2018-12-03 | 2019-04-23 | 广东工业大学 | A kind of method, apparatus, equipment and the storage medium of random determining terminal |
| CN109741513A (en) * | 2018-12-20 | 2019-05-10 | 太原理工大学 | A kind of winners' announcement in lottery method based on block chain technology |
| CN109753269A (en) * | 2019-01-30 | 2019-05-14 | 百度在线网络技术（北京）有限公司 | Random digit generation method, device, equipment and the storage medium of block chain |
| CN109767271A (en) * | 2019-01-18 | 2019-05-17 | 众安信息技术服务有限公司 | Lottery drawing method and equipment based on block chain |
| CN109886750A (en) * | 2019-02-25 | 2019-06-14 | 浪潮软件集团有限公司 | A kind of transparent random prize drawing implementation method based on block chain |
| CN109918044A (en) * | 2019-02-26 | 2019-06-21 | 太原理工大学 | A kind of lot/sort method based on block chain technology |
| CN110164022A (en) * | 2019-06-13 | 2019-08-23 | 北京艾摩瑞策科技有限公司 | A kind of random number of shaking method and its equipment on block chain |
| CN110189464A (en) * | 2019-06-13 | 2019-08-30 | 北京艾摩瑞策科技有限公司 | A kind of random lottery drawing method and device of application block chain |
| CN110223439A (en) * | 2019-06-13 | 2019-09-10 | 北京艾摩瑞策科技有限公司 | A kind of random number of shaking method and device of application block chain |
| CN110570576A (en) * | 2019-09-06 | 2019-12-13 | 杭州复杂美科技有限公司 | Lottery system, construction method, operation method, equipment and storage medium thereof |
| CN110968644A (en) * | 2019-11-29 | 2020-04-07 | 腾讯科技（深圳）有限公司 | Data processing method and equipment |
| CN110968442A (en) * | 2019-11-29 | 2020-04-07 | 腾讯科技（深圳）有限公司 | Data processing method and equipment |
| CN111223227A (en) * | 2018-11-26 | 2020-06-02 | 腾讯科技（深圳）有限公司 | Target user screening method and device |
| CN111429643A (en) * | 2020-03-18 | 2020-07-17 | 南京巨公科技有限公司 | Method and device for shaking numbers and storage medium |
| CN111488618A (en) * | 2020-04-13 | 2020-08-04 | 深圳信息职业技术学院 | Block chain-based one-time pad encryption method, device and storage medium |
| CN111599079A (en) * | 2020-04-21 | 2020-08-28 | 深圳市芯链科技有限公司 | Block chain shaking method, device, equipment and storage medium |
| WO2020177109A1 (en) * | 2019-03-07 | 2020-09-10 | 北京建极练科技有限公司 | Lot-drawing processing method, trusted chip, node, storage medium and electronic device |
| CN111815845A (en) * | 2020-07-08 | 2020-10-23 | 中钞信用卡产业发展有限公司杭州区块链技术研究院 | Shaking method, device, system, equipment and medium based on heterogeneous block chain |
| WO2022068644A1 (en) * | 2020-09-30 | 2022-04-07 | 深圳前海微众银行股份有限公司 | Target user determination method and apparatus, and device and storage medium |
| CN114550363A (en) * | 2022-02-23 | 2022-05-27 | 中国工商银行股份有限公司 | Block chain-based lottery method and device |
| CN114726534A (en) * | 2022-03-28 | 2022-07-08 | 海南格子山网络科技有限公司 | Method for realizing intelligent contract drawing based on Solana block chain technology |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102194271A (en) * | 2010-03-16 | 2011-09-21 | 李代甫 | Method, device and application for computer numerical selection |
| CN103544761A (en) * | 2012-07-13 | 2014-01-29 | 合肥华恒电子科技有限责任公司 | Method for realizing network lots drawing |
| CN104320262A (en) * | 2014-11-05 | 2015-01-28 | 中国科学院合肥物质科学研究院 | User public key address binding, searching and verifying method and system based on crypto currency open account book technology |
| CN104392354A (en) * | 2014-11-05 | 2015-03-04 | 中国科学院合肥物质科学研究院 | Association and retrieval method and system used for public key addresses and user accounts of crypto-currency |
| AU2015101403A4 (en) * | 2015-09-26 | 2015-11-19 | Mura, Robert Sauto John MR | "Cash In Digital Currency Out” Converting change from cash payments (e-change - Electronic Change) to Digital currency at any point of sale (POS). Cash is processed via the EFT, blockchain or Ethereum network. |
| CN105913174A (en) * | 2016-04-07 | 2016-08-31 | 彭军红 | Lottery issuing method based on block chains |
| CN105976248A (en) * | 2016-04-29 | 2016-09-28 | 邓迪 | Crowd funding lotting method and system |
| CN106504174A (en) * | 2016-09-27 | 2017-03-15 | 布比（北京）网络技术有限公司 | Lottery industry publishing system and device based on block chain |
| CN106850200A (en) * | 2017-01-25 | 2017-06-13 | 中钞信用卡产业发展有限公司北京智能卡技术研究院 | A kind of method for using the digital cash based on block chain, system and terminal |
| CN107103097A (en) * | 2017-05-22 | 2017-08-29 | 中链科技有限公司 | Drawing method and terminal device based on block chain technology |
-
2017
- 2017-10-27 CN CN201711020750.5A patent/CN107862782B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102194271A (en) * | 2010-03-16 | 2011-09-21 | 李代甫 | Method, device and application for computer numerical selection |
| CN103544761A (en) * | 2012-07-13 | 2014-01-29 | 合肥华恒电子科技有限责任公司 | Method for realizing network lots drawing |
| CN104320262A (en) * | 2014-11-05 | 2015-01-28 | 中国科学院合肥物质科学研究院 | User public key address binding, searching and verifying method and system based on crypto currency open account book technology |
| CN104392354A (en) * | 2014-11-05 | 2015-03-04 | 中国科学院合肥物质科学研究院 | Association and retrieval method and system used for public key addresses and user accounts of crypto-currency |
| AU2015101403A4 (en) * | 2015-09-26 | 2015-11-19 | Mura, Robert Sauto John MR | "Cash In Digital Currency Out” Converting change from cash payments (e-change - Electronic Change) to Digital currency at any point of sale (POS). Cash is processed via the EFT, blockchain or Ethereum network. |
| CN105913174A (en) * | 2016-04-07 | 2016-08-31 | 彭军红 | Lottery issuing method based on block chains |
| CN105976248A (en) * | 2016-04-29 | 2016-09-28 | 邓迪 | Crowd funding lotting method and system |
| CN106504174A (en) * | 2016-09-27 | 2017-03-15 | 布比（北京）网络技术有限公司 | Lottery industry publishing system and device based on block chain |
| CN106850200A (en) * | 2017-01-25 | 2017-06-13 | 中钞信用卡产业发展有限公司北京智能卡技术研究院 | A kind of method for using the digital cash based on block chain, system and terminal |
| CN107103097A (en) * | 2017-05-22 | 2017-08-29 | 中链科技有限公司 | Drawing method and terminal device based on block chain technology |
Non-Patent Citations (2)
| Title |
|---|
| 李赫等: ""基于区块链2.0的以太坊初探"", 《中国金融电脑》 * |
| 郑东: ""密码协议的逻辑分析与设计"", 《中国优秀博士学位论文全文数据库信息科技辑》 * |
Cited By (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108898729B (en) * | 2018-05-10 | 2021-04-30 | 电子科技大学 | Fair lottery drawing method based on block chain |
| CN108898729A (en) * | 2018-05-10 | 2018-11-27 | 电子科技大学 | A kind of fair winners' announcement in lottery method based on block chain |
| CN108648323A (en) * | 2018-05-10 | 2018-10-12 | 广州市申迪计算机系统有限公司 | Choosing method, device, computer equipment and the storage medium of target information |
| CN109615370A (en) * | 2018-10-25 | 2019-04-12 | 阿里巴巴集团控股有限公司 | Object select method and device, electronic equipment |
| CN109583892A (en) * | 2018-11-21 | 2019-04-05 | 安徽高山科技有限公司 | A kind of random number selecting method in block chain |
| CN111223227B (en) * | 2018-11-26 | 2022-03-22 | 腾讯科技（深圳）有限公司 | Target user screening method and device |
| CN111223227A (en) * | 2018-11-26 | 2020-06-02 | 腾讯科技（深圳）有限公司 | Target user screening method and device |
| CN109615422A (en) * | 2018-11-29 | 2019-04-12 | 哈希未来(北京)科技有限公司 | Competing pumping method, system and storage medium based on block chain |
| CN109671206A (en) * | 2018-12-03 | 2019-04-23 | 广东工业大学 | A kind of method, apparatus, equipment and the storage medium of random determining terminal |
| CN109741513A (en) * | 2018-12-20 | 2019-05-10 | 太原理工大学 | A kind of winners' announcement in lottery method based on block chain technology |
| CN109636998A (en) * | 2019-01-09 | 2019-04-16 | 山东浪潮质量链科技有限公司 | A kind of method and device drawn a lottery using block chain |
| CN109767271A (en) * | 2019-01-18 | 2019-05-17 | 众安信息技术服务有限公司 | Lottery drawing method and equipment based on block chain |
| CN109753269A (en) * | 2019-01-30 | 2019-05-14 | 百度在线网络技术（北京）有限公司 | Random digit generation method, device, equipment and the storage medium of block chain |
| CN109886750A (en) * | 2019-02-25 | 2019-06-14 | 浪潮软件集团有限公司 | A kind of transparent random prize drawing implementation method based on block chain |
| CN109918044A (en) * | 2019-02-26 | 2019-06-21 | 太原理工大学 | A kind of lot/sort method based on block chain technology |
| CN109918044B (en) * | 2019-02-26 | 2021-03-30 | 太原理工大学 | Block chain technology-based drawing/sorting method |
| WO2020177109A1 (en) * | 2019-03-07 | 2020-09-10 | 北京建极练科技有限公司 | Lot-drawing processing method, trusted chip, node, storage medium and electronic device |
| CN110223439A (en) * | 2019-06-13 | 2019-09-10 | 北京艾摩瑞策科技有限公司 | A kind of random number of shaking method and device of application block chain |
| CN110189464A (en) * | 2019-06-13 | 2019-08-30 | 北京艾摩瑞策科技有限公司 | A kind of random lottery drawing method and device of application block chain |
| CN110164022A (en) * | 2019-06-13 | 2019-08-23 | 北京艾摩瑞策科技有限公司 | A kind of random number of shaking method and its equipment on block chain |
| CN110223439B (en) * | 2019-06-13 | 2020-10-02 | 北京瑞策科技有限公司 | Random number shaking method and device for application block chain |
| CN110570576A (en) * | 2019-09-06 | 2019-12-13 | 杭州复杂美科技有限公司 | Lottery system, construction method, operation method, equipment and storage medium thereof |
| CN110570576B (en) * | 2019-09-06 | 2021-05-11 | 杭州复杂美科技有限公司 | Lottery system, construction method, operation method, equipment and storage medium thereof |
| CN110968644A (en) * | 2019-11-29 | 2020-04-07 | 腾讯科技（深圳）有限公司 | Data processing method and equipment |
| CN110968442A (en) * | 2019-11-29 | 2020-04-07 | 腾讯科技（深圳）有限公司 | Data processing method and equipment |
| CN111429643A (en) * | 2020-03-18 | 2020-07-17 | 南京巨公科技有限公司 | Method and device for shaking numbers and storage medium |
| CN111429643B (en) * | 2020-03-18 | 2022-07-08 | 南京巨公科技有限公司 | Method and device for shaking numbers and storage medium |
| CN111488618A (en) * | 2020-04-13 | 2020-08-04 | 深圳信息职业技术学院 | Block chain-based one-time pad encryption method, device and storage medium |
| CN111599079A (en) * | 2020-04-21 | 2020-08-28 | 深圳市芯链科技有限公司 | Block chain shaking method, device, equipment and storage medium |
| CN111815845A (en) * | 2020-07-08 | 2020-10-23 | 中钞信用卡产业发展有限公司杭州区块链技术研究院 | Shaking method, device, system, equipment and medium based on heterogeneous block chain |
| WO2022068644A1 (en) * | 2020-09-30 | 2022-04-07 | 深圳前海微众银行股份有限公司 | Target user determination method and apparatus, and device and storage medium |
| CN114550363A (en) * | 2022-02-23 | 2022-05-27 | 中国工商银行股份有限公司 | Block chain-based lottery method and device |
| CN114726534A (en) * | 2022-03-28 | 2022-07-08 | 海南格子山网络科技有限公司 | Method for realizing intelligent contract drawing based on Solana block chain technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107862782B (en) | 2020-11-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107862782A (en) | Drawing method and device based on ether mill block chain | |
| Grover et al. | Diffusion of blockchain technology: Insights from academic literature and social media analytics | |
| World Bank | World development report 2013: Jobs | |
| CN107103097A (en) | Drawing method and terminal device based on block chain technology | |
| CN103971226B (en) | Network interaction platform and its application method | |
| CN108347490A (en) | A kind of campus application apparatus and system based on biological identification technology | |
| Wilholt | Scientific freedom: its grounds and their limitations | |
| CN112949760A (en) | Model precision control method and device based on federal learning and storage medium | |
| CN108073659A (en) | A kind of love and marriage object recommendation method and device | |
| CN110084651A (en) | A kind of lottery drawing method based on block chain, device and terminal | |
| CN106485621A (en) | One kind is based on random algorithm vocational study checking system | |
| CN109961297A (en) | Article identification method, device, block chain node device and readable storage medium storing program for executing | |
| CN109656960A (en) | Intelligent recommendation method, apparatus, terminal device and the storage medium of credit operation | |
| Kuo et al. | An evaluation of a community-oriented policing program in Taiwan | |
| CN110472664A (en) | A kind of certificate image identification method, device and equipment based on deep learning | |
| CN113837631A (en) | Employee evaluation method and device, electronic device and readable storage medium | |
| Thompson et al. | Routledge handbook of the contemporary Philippines | |
| CN115660814A (en) | Risk prediction method and device, computer readable storage medium and electronic equipment | |
| Abrami | Self-making, class struggle and labor autarky: the political origins of private entrepreneurship in Vietnam and China | |
| CN108537573A (en) | Traveller's acquisition methods and system in a kind of real estate's sales | |
| CN108564333A (en) | A kind of occupational survey method and system | |
| Ellis | The American Frontier and the Contemporary Real Estate Advertising Magazine. | |
| CN113241134A (en) | Online consulting doctor distribution method and system and storage medium | |
| CN111709595A (en) | Method and system for allocating resources based on block chain technology | |
| Snyder et al. | Are Greenland’s inshore halibut fishers ready for individual transferable quotas? |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 100085 Floor 102-1, Building No. 35, West Second Banner Road, Haidian District, Beijing Applicant after: Seashell Housing (Beijing) Technology Co.,Ltd. Address before: 100085 Floor 102-1, Building No. 35, West Second Banner Road, Haidian District, Beijing Applicant before: LIANJIA(BEIJING) TECHNOLOGY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |