CN105976248A - Crowd funding lotting method and system - Google Patents
Crowd funding lotting method and system Download PDFInfo
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- CN105976248A CN105976248A CN201610280249.1A CN201610280249A CN105976248A CN 105976248 A CN105976248 A CN 105976248A CN 201610280249 A CN201610280249 A CN 201610280249A CN 105976248 A CN105976248 A CN 105976248A
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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
- G06Q40/06—Asset management; Financial planning or analysis
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- 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
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Abstract
The invention belongs to the Internet finance and block chain technical field and provides a crowd funding lotting method. The method includes the following steps that: the support of crowd funding succeeds, each lot of the crowd funding is numbered according to the sequence of the crowd funding; at least one related parameter of a block chain after a certain time of the success of the support of the crowd funding is selected; the sequence of disordered serial numbers of the crowd funding is obtained; and the disordered serial numbers of the crowd funding are selected sequentially according to the target number of the crowd funding so as to be adopted as lotted serial numbers. The invention also provides a lotting method system supporting the success of crowd funding. The system includes a crowd funding numbering module, a related block chain parameter selection module, a re-sequencing module and a lotted serial number selection module. According to the crowd funding lotting method and system of the invention, the justification and supervision of a third party are not required in a whole lotting process, and the whole lotting process can be justified, open and fair. The algorithm in the invention is simple and convenient.
Description
Technical field
The present invention relates to financial technology field, the Internet, and specifically a kind of crowd raises drawing method and system.
Background technology
Apply to purchase the middle label of new stock rule of drawing lots as follows: (1) number of shaking is taked random with the Jun Heng way combined, and shakes out at random
Middle sign code or basic middle sign code, then one equal numbers of increasing or decreasing, (increasing or decreasing equal numbers is according to lot winning rate not
With and determine that increasing or decreasing number is different, such as: 5/10000ths, first shake out a four figures as sign code in basic, then pass
Increase or successively decrease and 2000 obtain other 4 middle sign codes, that is: 10000/5) other middle sign code is drawn.
(2) as lot winning rate be 0.05622852% time: first produce ten thousand five middle sign code, then produce 6/100000ths
Middle label, then produce 2/1000000ths middle sign code, produce the middle sign code of 2/10000000ths the most again.In producing
Sign code, calculates middle sign code number, then produces remaining middle sign code.During such as aliquant proportional, then will
Proportional is taken apart.
Label chance in (3) number only one of which, if in the rear number (including mantissa) produced and previously generation
Sign code-phase is same, then cancelled by sign code in the repetition of rear generation, at once press the number of shaking rule and shake the middle sign code made new advances.
But above-mentioned middle label lot rule allows people query, and people can be allowed to think there is black-box operation, so by the number of shaking staff
According to the number of shaking rule, and sign code in shaking out under the supervision of notary offices is notarized.Detailed process is: the most whole number of shaking is drawn lots
Process has main consignee and publisher to draw lots in the supervision undertissue number of shaking of notary offices.Secondly, according to the number of shaking Rulemaking
The number of shaking way has obtained the accreditation of notary offices, and carries out, in strict accordance with the rule formulated, the number of shaking under notary public's field surveillance and take out
Sign.3rd, if ticket shaking machine tool breaks down during the number of shaking, then the number shaken out by the utensil that breaks down is cancelled, at once
Press the number of shaking rule and shaken the middle sign code made new advances by this utensil.4th, the inspection of corresponding computer test software system in shaking out
Sign code number is the most equal with middle label sum.Above-mentioned middle label drawing method not only needs third-party just and supervision, and
It is not suitable for crowd to raise in lot project.
Summary of the invention
It is an object of the invention to the shortcoming for prior art, proposing one, to need not third party just with supervision, and
Just, open, fair crowd raises drawing method and system.
For solving above-mentioned technical problem, the present invention proposes a kind of crowd and raises drawing method, including:
After S110, support crowd raise successfully, raise sequencing according to crowd, be followed successively by every hands crowd and raise numbering；
S120, take support crowd raise successfully at least one parameter relevant to block chain after certain time；
The crowd that step S110 obtains is raised numbering and carries out computing by S130, the parameter utilizing step S120 to obtain, it is thus achieved that upset
After crowd raise numbered sequence；
S140, the destination number raised according to crowd, choose the crowd after upsetting successively and raise label numbering in numbering conduct.
Further, in described step S120, certain time is set by the user.
Preferably, in described step S120, certain time takes support crowd and raises successfully one hour.
Preferably, in described step S120, the parameter relevant to block chain takes the block hash that block chain is newly generated
Value.
Preferably, relevant to block chain in described step S120 parameter also takes the block that block chain is newly generated
Transaction Merkle Root value.
The most described crowd to obtaining raises numbering and carries out cryptographic calculation at least one times.
Preferably, described cryptographic calculation uses md5 cryptographic calculation.
Preferably, utilize block chain parameter crowd is raised numbering carry out computing obtain upset after crowd raise numbered sequence mode
As follows:
md5(md5(arr[i]+seed)+salt)
Wherein, arr [i] is that the crowd that step S110 obtains raises numbering array, and seed is the block that block chain is newly generated
Hash value, salt is the Transaction Merkle Root value of the block that block chain is newly generated.
For solving above-mentioned technical problem, the present invention proposes again a kind of crowd and raises Draw lots System, raises numbering module including crowd, chooses
Correlation block chain parameter module, the module that reorders, selected middle label numbering module, described crowd raises numbering module for supporting that crowd raises into
After merit, raise sequencing according to crowd, be followed successively by every hands crowd and raise numbering；Described Correlation block chain parameter module of choosing is for taking support
Crowd raises successfully at least one parameter relevant to block chain after certain time；The described module that reorders chooses relevant district for using
Crowd is raised the crowd of numbering module acquisition and raises numbering and carry out computing by the parameter that block chain parameter module obtains, it is thus achieved that the crowd after upsetting raises volume
Number sequence；Sign the destination number that numbering module is used for raising according to crowd in selecting, choose the crowd after upsetting successively and raise in numbering conduct
Sign numbering.
Further, choosing certain time in Correlation block chain parameter module described in is set by the user.
Preferably, choose described in certain time in Correlation block chain parameter module take support crowd raise successfully one hour.
Choosing the parameter relevant to block chain in Correlation block chain parameter module described in preferably, to take block chain the most newborn
The block hash value become.
Preferably, choosing parameter relevant to block chain in Correlation block chain parameter module described in, also to take block chain up-to-date
The Transaction Merkle Root value of the block generated.
Preferably, the module that reorders described in described crowd is raised numbering module obtain crowd raise numbering carry out at least one times
Cryptographic calculation.
Preferably, described cryptographic calculation uses md5 cryptographic calculation.
Preferably, the module that reorders described in obtains the crowd after upsetting, and to raise a kind of mode of numbered sequence as follows:
md5(md5(arr[i]+seed)+salt)
Wherein, arr [i] is that many crowds raising the acquisition of numbering module raise numbering array, and seed is the district that block chain is newly generated
Block hash value, salt is the Transaction Merkle Root value of the block that block chain is newly generated.
Owing to the present invention uses the parameter relevant to block chain to carry out certain algorithm with many numberings of raising so that initial volume
Number order rearranges, the destination number then raised according to crowd, choose successively the crowd after upsetting raise numbering as in sign numbering.Institute
Raising drawing method and system with the crowd of the present invention, to need not third party in whole lot process just with supervision, and just, public
Open, fair.Inventive algorithm is simple, convenient, and may be used on the fields such as prize drawing, lottery industry.
Accompanying drawing explanation
Fig. 1 is that the crowd of the present invention raises drawing method flow chart.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is described in further detail, it is necessary to it is pointed out here that, implement in detail below
Mode is served only for being further detailed the present invention, it is impossible to be interpreted as limiting the scope of the invention, this field
The present invention can be made some nonessential improvement and adjustment according to foregoing invention content by technical staff.
Crowd according to the present invention raises drawing method and system, whole lot process need not third party just with supervision,
And it is just, open, fair.
As it is shown in figure 1, raise drawing method according to the crowd of the present invention, including:
After S110, support crowd raise successfully, raise sequencing according to crowd, be followed successively by every hands crowd and raise numbering.
Crowd raises rule:
It is on the other hand that crowd raises unit, on the other hand=50000 strands, and it can only be integral multiple on the other hand that user crowd raises.On the other hand equal to how many
Stock is set on demand by user.
After supporting that crowd raises successfully, raise sequencing according to crowd, be followed successively by every hands crowd and raise numbering.It is open that this crowd raises numbering
, user can check that the crowd oneself obtained raises numbering in systems.
S120, take support crowd raise successfully at least one parameter relevant to block chain after certain time；
Certain time all can be set by user on demand to taking the parameter relevant with block chain.A timing in the present embodiment
Between choose 1 hour.Choose two parameters relevant to block chain, the block hash value that the most too one block chain is newly generated with
The Transaction Merkle Root of the block that too one block chain is newly generated, have selected two parameters, so can make
Data after computing more equalize.Transaction Merkle Root is construed to Merkel's tree root of concluding the business.
The crowd that step S110 obtains is raised numbering and carries out computing by S130, the parameter utilizing step S120 to obtain, it is thus achieved that upset
After crowd raise numbered sequence.
The crowd that step S110 obtains is raised numbering and is encrypted computing by the parameter utilizing step S120 to obtain, and selects several parameter
Just can encrypt several times.In the present embodiment, algorithm is as follows:
md5(md5(arr[i]+seed)+salt)
Wherein, arr [i] is that the crowd that step S110 obtains raises numbering array, and seed is the block that block chain is newly generated
Hash value, salt is the Transaction Merkle Root value of the block that block chain is newly generated, and md5 is that the md5 used adds
Close computing.
S140, the destination number raised according to crowd, choose the crowd after upsetting successively and raise label numbering in numbering conduct.
Such as: crowd raises target 10000 strands, and on the other hand=10 strands, i.e. crowd raises target 1000 hands.
1) Xiao Ming crowd raises and supports 10 handss；
2) after supporting that crowd raises successfully, it is thus achieved that 10 crowds raise numbering；
3) support that crowd raises successfully after 1 hour, the block that too one block chain is newly generated:
Has value=0000649ffcca0e4435315646221ab2c713a8b45e538e7cb0c66697f3 cad26621
TransactionMerkleRoot=1e252f55847d1e7c19c42b4683643452ef 03b7445f11c0c673469
c727f28b68e
Upset crowd and raise numbered sequence md5 (md5 (arr [i]+seed)+salt)
4) raise numbered sequence from the crowd upset successively and choose label numbering 1000 numbering conducts.
User list arr [33000], takes out quantity number=10000
Algorithm principle
1: take out the hash value ultimately producing block, represent with seed, further take out parameter Transaction Merkle
Root, represents with salt.
2: with " seed " and " salt ", user list is twice md5 computing, result [i]=md5 (md5 (arr respectively
[i]+seed)+salt)；
3: result [] is ranked up；
4: from the result after sequence, take out first 10000；
Pseudo-code
Crowd according to the present invention raises Draw lots System, raises numbering module including crowd, chooses Correlation block chain parameter module, rearrangement
Sequence module, selected in sign numbering module, described crowd raises numbering module after supporting that crowd raises successfully, raises sequencing according to crowd,
It is followed successively by every hands crowd and raises numbering；Described choose Correlation block chain parameter module and raise successfully after certain time at least for taking support crowd
One parameter relevant to block chain；The described module that reorders chooses, for using, the parameter that Correlation block chain parameter module obtains
Crowd raises the crowd that numbering module obtains raise numbering and carry out computing, it is thus achieved that the crowd after upsetting raises numbered sequence；Numbering mould is signed in selected
Block, for the destination number raised according to crowd, is chosen the crowd after upsetting successively and is raised label numbering in numbering conduct.
Crowd raises rule:
It is on the other hand that crowd raises unit, on the other hand=50000 strands, and it can only be integral multiple on the other hand that user crowd raises.
Crowd raises numbering module after supporting that crowd raises successfully, raises sequencing according to crowd, is followed successively by every hands crowd and raises numbering.Should
It is disclosed that crowd raises numbering, and user can check that the crowd oneself obtained raises numbering in systems；
Described choose Correlation block chain parameter module and raise successfully after certain time at least one and block for taking support crowd
The parameter that chain is relevant.The present embodiment certain time is chosen 1 hour, and this time, user can set.Choose two and block
The parameter that chain is relevant, the block hash value that the most too one block chain is newly generated and the block that too one block chain is newly generated
Transaction Merkle Root, chooses the parametric user relevant to block chain and chooses by demand, have selected in the present embodiment
Two parameters, so can make data more equalize.
The described module that reorders is for using the parameter choosing the acquirement of Correlation block chain parameter module that crowd raises numbering module
The crowd obtained raises numbering and carries out computing, it is thus achieved that the crowd after upsetting raises numbered sequence.In the present embodiment, specific algorithm is as follows:
md5(md5(arr[i]+seed)+salt)
Wherein, arr [i] is that many crowds raising the acquisition of numbering module raise numbering array, and seed is the district that block chain is newly generated
Block hash value, salt is the Transaction Merkle Root value of the block that block chain is newly generated.Md5 is the md5 used
Cryptographic calculation.
Claims (10)
1. a crowd raises drawing method, it is characterised in that: including:
After S110, support crowd raise successfully, raise sequencing according to crowd, be followed successively by every hands crowd and raise numbering；
S120, take support crowd raise successfully at least one parameter relevant to block chain after certain time；
The crowd that step S110 obtains is raised numbering and carries out computing by S130, the parameter utilizing step S120 to obtain, it is thus achieved that after upsetting
Crowd raises numbered sequence；
S140, the destination number raised according to crowd, choose the crowd after upsetting successively and raise label numbering in numbering conduct.
Crowd the most according to claim 1 raises drawing method, it is characterised in that: in described step S120, certain time is by user
Set.
Crowd the most according to claim 2 raises drawing method, it is characterised in that: in described step S120, certain time takes support
Crowd raises successfully one hour.
Crowd the most according to claim 1 raises drawing method, it is characterised in that: relevant to block chain in described step S120
Parameter takes the block hash value that block chain is newly generated.
Crowd the most according to claim 4 raises drawing method, it is characterised in that: relevant to block chain in described step S120
Parameter also takes the Transaction Merkle Root value of the block that block chain is newly generated.
Crowd the most according to claim 1 raises drawing method, it is characterised in that: the described crowd to obtaining raises numbering and carries out at least
Cryptographic calculation once.
Crowd the most according to claim 6 raises drawing method, it is characterised in that: described cryptographic calculation uses md5 cryptographic calculation.
8. raise drawing method according to the crowd described in claim 1,5 or 7, it is characterised in that: utilize block chain parameter that crowd is raised volume
Number carry out computing to obtain the crowd after upsetting to raise numbered sequence mode as follows:
md5(md5(arr[i]+seed)+salt)
Wherein, arr [i] is that the crowd that step S110 obtains raises numbering array, and seed is the block hash value that block chain is newly generated,
Salt is the Transaction Merkle Root value of the block that block chain is newly generated.
9. a crowd raises Draw lots System, it is characterised in that: include that crowd raises numbering module, chooses Correlation block chain parameter module, weight
Order module, selected in sign numbering module, described crowd raises numbering module after supporting that crowd raises successfully, raises priority according to crowd the most suitable
Sequence, is followed successively by every hands crowd and raises numbering；Described Correlation block chain parameter module of choosing is after taking support crowd raises successfully certain time
At least one parameter relevant to block chain；The described module that reorders chooses what Correlation block chain parameter module obtained for using
Crowd is raised the crowd that numbering module obtains and raises numbering and carry out computing by parameter, it is thus achieved that the crowd after upsetting raises numbered sequence；Sign in selected and compile
Number module for the destination number raised according to crowd, choose successively the crowd after upsetting raise numbering as in sign numbering.
Crowd the most according to claim 9 raises Draw lots System, it is characterised in that choose Correlation block chain parameter module described in:
Middle certain time is set by the user.
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| CN201610280249.1A CN105976248A (en) | 2016-04-29 | 2016-04-29 | Crowd funding lotting method and system |
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| CN107742352A (en) * | 2017-09-20 | 2018-02-27 | 黄玉宇 | Decentralization lot/queuing strategy and system based on block chain and intelligent contract |
| CN107820690A (en) * | 2017-08-21 | 2018-03-20 | 达闼科技成都有限公司 | Information choosing method, device, electronic equipment and computer-readable recording medium |
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Application publication date: 20160928 |