CN109800248A - Digital content for block chain network is traced to the source and recording method, storage medium, calculating equipment - Google Patents
Digital content for block chain network is traced to the source and recording method, storage medium, calculating equipment Download PDFInfo
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Abstract
A kind of digital content for block chain network is traced to the source and recording method, storage medium, calculates equipment, the digital content source tracing method includes: that A. receives request of tracing to the source, and the request of tracing to the source includes the first operation mark for the first operation of the digital content；B. the operation information of the operation for the digital content before first operation is inquired in the block chain account book of the block chain network, wherein the operation information includes executing the information of the user of the operation；C. the operation information is returned.The scheme provided through the invention can realize the propagation of digital content and effectively trace to the source.
Description
Technical field
The present invention relates to block chain technical field, trace to the source more particularly to a kind of digital content for block chain network and
Recording method, calculates equipment at storage medium.
Background technique
Block chain be with distributed data base identification, propagate and information-recording intelligent peer-to-peer network, be also referred to as worth
Internet.Block chain technology includes guaranteeing transmission and access safety etc. using cryptography with block structure storing data, can be real
Existing data consistency storage, tamper-resistant, the technical system for going to center.
Digital content platform is a platform for user's spreading digital content, it is understood that it is data sharing platform,
The digital content of creation can be distributed to the digital content platform by user, can also be any on the digital content platform
The digital content for forwarding other people to issue or forward.
Summary of the invention
It traces to the source the embodiment provides a kind of digital content for block chain network and is situated between with recording method, storage
Matter calculates equipment.
The first aspect of the embodiment of the present invention provides a kind of digital content source tracing method for block chain network, comprising:
A. request of tracing to the source is received, the request of tracing to the source includes the first operation mark for the first operation of the digital content；B. exist
The operation for the digital content before first operation is inquired in the block chain account book of the block chain network
Operation information, wherein the operation information includes executing the information of the user of the operation；C. the operation information is returned.
The scheme of the present embodiment effectively traces to the source to the propagation realization of digital content.Specifically, remember in the block chain account book
Record has in history can be in institute according to first operation mark for the operation information of digital content operated at least once
Inquiry in block chain account book is stated to obtain for the operation information of the operation of the digital content before first operation, thus
The reversed retrospect to the communication process of digital content is realized, so that all becoming open to all previous operating result of digital content can chase after
The information traced back.
The embodiment of the present invention also provides a kind of calculating equipment, including processor and memory, is stored on the memory
The computer instruction that can be run on the processor, the processor execute following step when running the computer instruction
Rapid: A. receives request of tracing to the source, and the request of tracing to the source includes the first operation mark for the first operation of the digital content；B.
The operation for the digital content before first operation is inquired in the block chain account book of the block chain network
Operation information, wherein the operation information includes executing the information of the user of the operation；C. the operation information is returned.
The embodiment of the present invention also provides a kind of digital content recording method for block chain network, comprising: A. determines needle
To the operation information of the current operation of the digital content, wherein the operation information includes executing the use of the current operation
The information at family；B. the operation mark of the current operation for the digital content is generated according to the operation information of the current operation
Know；C. the operation mark of the preceding once-through operation for the digital content is obtained；D. cochain request, the cochain request packet are generated
It includes for the operation information and operation mark of the current operation of the digital content and for primary before the digital content
The operation mark of operation.
The scheme of the present embodiment relies on block chain technology that block chain account book is written for the operation of digital content in user, real
Now to effective record of digital content communication process in a network.Specifically, the current operation for being directed to the digital content is generated
Operation mark, it is ensured that the subsequent operation information that the operation for digital content can be uniquely determined based on operation mark so that
Operation each time for digital content can find corresponding user.Further, based on the current operation for being directed to digital content
Operation mark and the operation mark of preceding once-through operation generate cochain request together, can obtain for before digital content
The incidence relation operated twice afterwards, and block chain account book is written into the incidence relation, ensured using the tamper-resistant function of block chain
The authenticity of the incidence relation, so that the retrospect chain of digital content is formed by block chain account book, so as to digital content
Operating result, which all becomes, each time discloses retrospective information.
The embodiment of the present invention also provides a kind of calculating equipment, including processor and memory, is stored on the memory
The computer instruction that can be run on the processor, the processor execute following step when running the computer instruction
Rapid: A. determines the operation information of the current operation for the digital content, wherein the operation information includes working as described in execution
The information of the user of preceding operation；B. the current operation for being directed to the digital content is generated according to the operation information of the current operation
Operation mark；C. the operation mark of the preceding once-through operation for the digital content is obtained；D. generate cochain request, it is described on
Chain request includes for the operation information and operation mark of the current operation of the digital content and for the digital content
Preceding once-through operation operation mark.
The embodiment of the present invention also provides a kind of storage medium, is stored thereon with computer instruction, the computer instruction fortune
The step of above method is executed when row.
Detailed description of the invention
Fig. 1 is a kind of flow chart of digital content source tracing method for block chain network of the embodiment of the present invention；
Fig. 2 is the flow chart of a specific embodiment of step B in Fig. 1；
Fig. 3 is a kind of flow chart of digital content recording method for block chain network of the embodiment of the present invention；
Fig. 4 is the schematic diagram of a typical application scenarios of the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of block chain node in Fig. 4.
Specific embodiment
Present inventor the analysis found that, existing digital content platform can not be to the digital content propagated on it
It is effectively traced, is unfavorable for the retrospect in the propagation source to spoofing, has an effect on the public to the authenticity of digital content
Degree of belief.
Specifically, there are the digital contents of a large amount of user creation, such as video, audio, text in internet world
Deng.By taking social platform as an example, this kind of digital content platform is easy to be widely-available for users some deceptive information of publication and rumour, and
Other users are forwarded and are broadcast in short time.
It is existing when user issues on digital content platform or forwards digital content for digital content platform side
Digital content platform only record this publication or forwarding relevant information, once a digital content be proved to be spoofing it
Afterwards, existing digital content platform can not effectively find the user for initially issuing the digital content.
The first aspect of the embodiment of the present invention provides a kind of digital content source tracing method for block chain network, comprising:
A. request of tracing to the source is received, the request of tracing to the source includes the first operation mark for the first operation of the digital content；B. exist
The operation for the digital content before first operation is inquired in the block chain account book of the block chain network
Operation information, wherein the operation information includes executing the information of the user of the operation；C. the operation information is returned.
The scheme of the present embodiment effectively traces to the source to the propagation realization of digital content.Specifically, remember in the block chain account book
Record has in history can be in institute according to first operation mark for the operation information of digital content operated at least once
Inquiry in block chain account book is stated to obtain for the operation information of the operation of the digital content before first operation, thus
The reversed retrospect to the communication process of digital content is realized, so that all becoming open to all previous operating result of digital content can chase after
The information traced back.
It is understandable to enable above-mentioned purpose of the invention, feature and beneficial effect to become apparent, with reference to the accompanying drawing to this
The specific embodiment of invention is described in detail.
Below with reference to each exemplary embodiment of the attached drawing detailed description disclosure.Flow chart and block diagram in attached drawing are shown
The architecture, function and operation in the cards of method and system according to various embodiments of the present disclosure.It should be noted that
Each box in flowchart or block diagram can represent a part of a module, section or code, the module, program segment
Or a part of code may include it is one or more for realizing in each embodiment the logic function of defined it is executable
Instruction.It should also be noted that in some alternative implementations, function marked in the box can also be according to different from attached drawing
Middle marked sequence occurs.For example, two boxes succeedingly indicated can actually be basically executed in parallel or they
Sometimes it can also execute in a reverse order, this depends on related function.It should also be noted that flow chart and/
Or the combination of each box in block diagram and the box in flowchart and or block diagram, can be used execution as defined in function or
The dedicated hardware based system of operation realizes, or can be used specialized hardware and computer instruction combination come it is real
It is existing.It shall also be noted that the serial number of each step does not represent the restriction to the execution sequence of each step in flow chart.
Term as used herein "comprising", " comprising " and similar terms are understood to open term, i.e.,
" including/including but not limited to ", expression can also include other content.In this disclosure, term "based" is " at least portion
It is based on dividing "；Term " one embodiment " expression " at least one embodiment "；Term " another embodiment " expression " at least one
Other embodiment ".
Herein presented " cochain request " refers to: being sent to the message of block chain node by digital content platform, is used for
Request is by user for the operation note of digital content to block chain account book on digital content platform.
In one embodiment, the cochain request may include the operation letter for the current operation of the digital content
Breath and operation mark, and the operation mark of the preceding once-through operation for the digital content.
Wherein, the operation information may include executing the information of the user of the operation, such as the identity information of user.
Further, the identity information of the user has uniqueness, being capable of user described in unique association.
In one embodiment, the identity information of the user can be logical by the digital content platform real name verification
The information crossed.For example, the identity information of the user can be cell-phone number, the identification card number etc. of the user.
In another change case, the identity information of the user, which can be, to be distributed by the digital content platform to described
User's, the identification information that can not be distorted.The account name of such as digital content platform unified distribution.
Further, the operation information can also include the time for executing the operation, for example, the digital content
Forward the publication moment at moment, the digital content.
Further, the operation information can also include the version information of the operation.The version information can wrap
Include the initial data obtained after description operates the digital content.Alternatively, the version information also may include operation
The version number of the version number of obtained digital content, the digital content that different operation obtains is not identical.
In one embodiment, obtained initial data after directly forwarding operation is carried out to the digital content, with by into
The initial data of the row directly digital content of forwarding operation is consistent, that is, the digital content of directly forwarding operation front and back
Version number is consistent.
In another embodiment, the initial data obtained after forwarding operation after modifying to the digital content, with
It is inconsistent that the initial data of the digital content of operation is forwarded after being modified, that is, forwarding operation front and back after modification
The version number of digital content is inconsistent.
It is possible to further using the cryptographic Hash of the initial data of the digital content or the digital content described in
Version information.
It, can be to obtaining for example, when obtained digital content is larger after carrying out current operation for the digital content
Digital content carry out Hash calculation, and using the cryptographic Hash being calculated as the version information of current operation, to obtain light weight
The block chain account book of grade.
In another example when the digital content obtained after for digital content progress current operation is smaller, it can be direct
Using obtained digital content as the version information of current operation.
Herein presented " operation mark " refers to: the unique identification of the digital content currently operated, the operation mark
Know for uniquely determining the user, the time of operation and the version information of current operation that are directed to digital content and execute operation.
Further, the operation mark has uniqueness in the digital content flat roof area.
That is, digital content is every once just to generate new unique identification by operation, as a result, by remembering in block chain account book
Record people, time, object and the associated unique identification that current operation is carried out to digital content, and unique mark of last operation
Know, can be realized the chain type association of the digital content, conducive to tracing to the source.
In one embodiment, the operation mark can be is generated by the digital content platform at random, and in institute
State unduplicated random number in digital content flat roof area.
In another embodiment, the operation mark, which can be, carries out Hash meter to the operation information of the current operation
Obtained cryptographic Hash.
Herein presented " additional information " refers to: the information added by block chain node, and such as block chain node connects
Receive the receiving time of the cochain request.For example, described in the block chain node additional information can be written together
Block chain account book.
Further, the additional information can also include the processing time of the block chain node, as started to process
At the time of stating cochain request.
Herein presented " cochain instruction " refers to: being sent to the message of digital content platform by user, is used to indicate number
Word content platform records the user to block chain account book for the operation information for the current operation that digital content executes.Example
Such as, the cochain instruction may include the information for the user for executing the current operation and the institute that the current operation is targeted
State digital content.
Herein presented " digital content platform " refers to: for the platform of user's spreading digital content, such as social platform, letter
Cease distribution platform etc..Specifically, user can create digital content and be distributed to the digital content platform, and user can also turn
It sends out other people or oneself propagates to the digital content of the digital content platform.
Herein presented " digital content " refers to: existing various contents in digital form, such as text, image, sound
Sound etc., the digital content can pass through network transmission.For example, the digital content may include video, audio, text etc..
In one embodiment, the propagation, which refers to, issues, forwards in the digital content platform etc..
Herein presented " operation " refers to: the individual part or multiple movements executed to the digital content.The behaviour
Make specifically to can be upload operation or forwarding operation.Wherein, upload operation is referred to as publication operation.
Herein presented " upload operation " refers to: the operation of new digital content is issued on digital content platform,
In, the new digital content can be user oneself creation of the upload operation.
Herein presented " forwarding operation " refers to: forwarding is already present on the digital content on digital content platform
The digital content of platform, wherein the digital content for being already present on the digital content platform can be other people described
It is propagated on digital content platform, the user oneself for being also possible to the forwarding operation propagates to the data content platform.
In one embodiment, the forwarding operation may include: direct forwarding operation and forward operation after modifying,
In, the initial data of the digital content before and after being forwarded using the direct forwarding operation is constant, turns using after the modification
The initial data for the digital content that hair operation is forwarded front and back changes.
Specifically, the modification operation after the modification in forwarding operation may include: addition comment, Suitable content, such as delete
Subtract video length, addition filter etc..
Herein presented " current operation " refers to: triggering this block chain account book writing events, cochain request generates thing
The operation of part, the current operation can be aforementioned forwarding operation or upload operation.
Herein presented " preceding once-through operation " refers to: the digital content targeted to current operation carries out most in history
Nearly once-through operation.The preceding once-through operation is that the immediate operation on the time before the current operation occurs, before described
Without other operations between once-through operation and current operation.
In one embodiment, the preceding once-through operation can be and carry out most away from the present for the digital content on the time
Once-through operation afterwards.For example, current operation can be the operation of the forwarding to digital content v2.0, preceding once-through operation be can be to number
Operation is forwarded after the modification of content v1.0, the release content that forwarding operation generates after the modification is digital content v2.0.
In another embodiment, the preceding once-through operation can be associated with the release content of digital content, that is, institute
Once-through operation can refer to that the last time carried out in history to the release content that current operation generates operates before stating.For example, current
Operation and preceding once-through operation are the operations of the forwarding to digital content v1.0.
Further, in the present embodiment, an independence can be considered as to forwarding operation after the modification of digital content v1.0
Publication operation, release content that the user of preceding once-through operation, operating time, operation generate and the operation mark can be with
For sky.
Herein presented " key of user " refers to: the number propagated in digital content platform for the user it
The parameter of content progress cryptographic applications.The key and the certificate of pairing, which can be, distributes to institute by the digital content platform
State user's.
For example, the operation of the execution of user described in the key pair for distributing to the user can be used in the digital content platform
Version information sign, with prove in the future the digital content be by the user's operation after obtain and propagate.
Herein presented " key of digital content platform " refers to: for the digital content platform to it to block chain link
The information that point is sent carries out the parameter of cryptographic applications.The key and the certificate of pairing can be by the digital content platform
What oneself was generated.
For example, the certificate of itself can be sent to the block chain node in advance by the digital content platform, in reality
In, the digital content platform can be used the request of cochain described in the key pair of itself and sign, and by the card of itself
Book also adds in the cochain request and is sent to the block chain node together.
In response to receiving the cochain request, the block chain node can extract the number from cochain request
Whether the certificate and signature of word content platform are signed described in the certification authentication by the digital content platform correct, are compared simultaneously
Relatively receive cochain request in certificate and number content platform be previously transmitted to block chain node certificate it is whether consistent, with
Judge whether the cochain request is to be signed by the digital content platform.
Herein presented " cochain instruction " refers to: designation number content platform will be remembered for the current operation of digital content
It records to the instruction information of block chain account book.
Specifically, the cochain instruction can be initiated by user by user terminal, the user terminal and the digital content
Platform communicates.In other words, the user terminal can be the interface of the digital content platform towards the user.For example, institute
Stating user terminal can be the terminal devices such as mobile phone, IPAD, computer.
In a typical application scenarios, the user terminal can be regarded as the operation side of digital content, pass through the number
The function that word content platform provides, the digital content of oneself creation can be distributed to the digital content platform by user, or be turned
The digital content for sending out described on digital content platform.When issuing and forwarding digital content, digital content platform, which can provide, is
The no option for synchronizing this operation to block chain account book.User, which can choose, synchronizes this operation to the block chain account book, from
And trigger the cochain instruction.Thus, it is possible to track the digital content in the subsequent operation of the digital content platform, it can also
It is reversely traced to the source with realizing.
Herein presented " request of tracing to the source " refers to: record is searched in request from block chain account book to be had for digital content
The information of the block of initial operation.
Specifically, the request of tracing to the source may include the first operation mark of the first operation for the digital content.
Wherein, first operation can be issuer (such as digital content platform) certain known once-through operation, and first operation can
Using the starting point as the process of tracing to the source, the block chain node inquires block chain account according to the first operation mark of first operation
This, therefrom obtains before first operation, for the operation information of the historical operation of the digital content.
For example, user A is proved to be spoofing in the digital content B that digital content platform forwards, then in the number
Hold platform needs to trace to the source to obtain the user for being forwarded the digital content B before the user A, and initially will be described
Digital content B is uploaded to the information of the user of the digital content platform.Using the scheme of the present embodiment, the user A is directed to
The forwarding operation of the digital content B is first operation, corresponding to have first operation mark, in the number
Hold platform and request block chain link point to be searched according to first operation mark, to obtain before the user A to described
The operation information of the operation of digital content B.
In one embodiment, since the record stage in digital content is will to be directed to before and after the digital content twice
It operates while the block chain account book is written, thus, in the stage of tracing to the source of digital content, according to for the digital content
First operation mark of the first operation can obtain writing together with first operation mark from inquiry in the block chain account book
The operation mark of the preceding once-through operation entered.It so repeats lookup movement to trace forward step by step, until finding for described
The operation mark of the first time operation of digital content, or until find the block for meeting preset condition.
Further, there is the operation of the first time operation for the digital content due to recording in the block chain account book
Information traces to the source to deceptive information conducive to the realization of digital content platform.
Herein presented " preset condition " refers to: the termination condition of pre-set operation of tracing to the source, that is, aforementioned repetition
Execute the end opportunity of lookup movement.
In one embodiment, the preset condition may include: to be searched according to the operation mark for the operation
The number that repeats for identifying the operation mark of the preceding once-through operation of associated digital content reaches preset threshold.
Further, the preset threshold can pass through the request instruction of tracing to the source by the digital content platform.For example,
The preset threshold can be infinitely great or default value, to indicate that block chain node is traced to the source forward to the operation letter of initial operation
Breath.
In another embodiment, the preset condition may include: that record has the associated version of the first operation mark
The operation information of all operations of this information.
In a typical application scenarios, it is assumed that user A Yu Shidian is issued on the digital content platform in number
Hold v1.0, operation mark 1 can be generated in the behavior for this publication of user A digital content v1.0；User B is forwarded at ten one points
Operation mark can be generated in the digital content v1.0 of user A publication, the behavior for this forwarding operation of user B digital content v1.0
Know 2；User C is modified and is forwarded to the digital content v1.0 of user B forwarding at ten two points, and what is forwarded after this modification is denoted as number
Operation mark 3 can be generated in content v2.0, the behavior for forwarding digital content v2.0 after this modification of user C；User D is in one
The digital content v2.0 forwarded after point forwarding user C modification, the behavior for this forwarding of user D digital content v2.0 can give birth to
At operation mark 4.Wherein, block chain account book, operation mark 2 and operation mark 3 is written in operation mark 1 and operation mark 2 simultaneously
Block chain account book is written simultaneously, block chain account book is written in operation mark 3 and operation mark 4 simultaneously.
When user D is judged as spoofing in the digital content v2.0 that any is forwarded, using the scheme of the present embodiment,
It can determine that user D in the operation associated mark 4 of behavior of some forwarding digital content v2.0, traces back to behaviour according to operation mark 4
3 are made a check mark, to find the propagation source user C of digital content v2.0 in digital content platform.
Further, operation mark 2, operation mark 1 can also be traced back to according to operation mark 3, thus in digital content
The propagation source user A of the differentiation fundamental digital content v1.0 of digital content v2.0 is found in platform.
In another typical application scenarios, the block chain node be can receive from multiple digital content platforms
Cochain request, the operation note on the multiple digital content platform for digital content is in same block chain account book.This
When, aforementioned upload operation can refer to the upload operation of user's any digital content platform in the multiple digital content platform,
Aforementioned forwarding operation may include the forwarding operation between the multiple digital content platform.Implemented as a result, using the present invention
The scheme of example, can be realized tracing to the source between multiple digital content platforms.
Herein presented " business " includes the system in order to reach specific purpose or realize specific function and carry out
The set of column (i.e. one or more, usually multiple) affairs.For example, in order to reach the number that digital content is traced to the source purpose and carried out
The word content business of tracing to the source may include a series of affairs such as digital content record affairs, digital content retrospect affairs.
It should be appreciated that provide these exemplary embodiments merely to make those skilled in the art can better understand that into
And realize embodiment of the disclosure, and do not in any way limit the scope of the invention.
The block chain technical solution of the embodiment of the present invention can be applied in different fields, in the present embodiment, with number
Word content is traced to the source and is illustrated for business.
Fig. 1 is a kind of flow chart of digital content source tracing method for block chain network of the embodiment of the present invention.Wherein,
The block chain network can be made of multiple block chain nodes communicated, and the scheme of the present embodiment can be by the block chain
Node executes.
Specifically, in the present embodiment, the digital content source tracing method may include:
At 101, step A is executed, receives request of tracing to the source, the request of tracing to the source includes first for the digital content
First operation mark of operation；
At 102, step B is executed, inquiry is in first operation in the block chain account book of the block chain network
The operation information of the preceding operation for the digital content, wherein the operation information includes executing the user of the operation
Information；
At 103, step C is executed, the operation information is returned.
More specifically, the request of tracing to the source can receive from digital content platform, the digital content platform with it is described
Block chain node communicates.
In one embodiment, the key signature of the digital content platform can be used in the request of tracing to the source.Institute as a result,
Stating step A may further include: verifying to the signature of the request of tracing to the source, is by described with request of tracing to the source described in confirmation
Digital content platform is signed and is sent.
In one embodiment, before the step A, the digital content source tracing method can also include: step O,
Receive cochain request, cochain request include for the current operation of the digital content operation information and operation mark,
And the operation mark of the preceding once-through operation for the digital content；Step P, by the operation information of the current operation and behaviour
It makes a check mark and the operation mark of the preceding once-through operation is written in the block chain account book.
Wherein, the cochain request also can receive from digital content platform, and use the close of the digital content platform
Key signature.
In a typical application scenarios, the request of tracing to the source can be to trace to the source in digital content platform generation and need
It is triggered when asking, the cochain request can be the digital content triggering when being operated on the digital content platform every time
's.
Further, the key signature for the user for executing the current operation can be used in the cochain request.Institute as a result,
Stating step O may further include: the signature that step O1. requests the cochain is verified, to confirm the cochain request
It is by the user's signature.
Further, after the step O, before step P, digital content source tracing method described in the present embodiment can be with
It include: to judge the user that the signature of the cochain request is directed toward and the execution current operation that cochain request breath includes
Whether user is consistent.Thus, it is possible to which ensuring to be recorded to the user of the block chain account book is strictly the use for executing current operation
Family.
In a change case, the user of the current operation can be only used the operation version in the operation information
Key signature, to ensure that the operation version is obtained by the user's operation.
In yet another embodiment, the cochain request using the key of the digital content platform and can be held respectively
The key signature of the user of the row current operation, to achieve the effect that dual identity is verified.
By the step O and step P, front and back can be directed to the operation information and operation of the operation of digital content twice
Associated write-in block chain account book being identified, reversely tracing to the source to obtain for the number according to the related information when convenient for tracing to the source
The operation information of the initial operation of content.
In one embodiment, the step P may further include: step P1, by the additional information (on described
The receiving time of chain request) the write-in block chain account book.Thus, it is possible to which block chain account is written in more reference informations together
This, enables and accurately matches when subsequent tracing.
In one embodiment, it may further include with reference to Fig. 2, the step B:
At 1021, step B1 is executed, inquires in the block chain account book and is written simultaneously with first operation mark
It is described first operation preceding once-through operation operation mark；
At 1022, step B2 is executed, inquiry is continued simultaneously according to the operation mark of the preceding once-through operation inquired
Write-in more before operation mark, until inquiring the initial operation of the digital content；
At 1023, step B3 is executed, determines the operation information of the initial operation.
In a change case, the step B2 also be may alternatively be: according to the preceding once-through operation inquired
Operation mark continue inquiry simultaneously write-in more before operation mark, until inquire meet the preset condition be directed to institute
State the operation of digital content.Correspondingly, the step B3 may alternatively be: what determination inquired meets the preset condition
The operation information of operation.
By upper, using the scheme of the present embodiment, the propagation of digital content can be realized and effectively be traced to the source.Specifically, described
Record has the operation information operated at least once for being directed to digital content in history in block chain account book, according to first operation
Mark can be inquired in the block chain account book and be obtained before first operation for the operation of the digital content
Operation information, so that the reversed retrospect to the communication process of digital content is realized, so as to all previous operating result of digital content
All become and discloses retrospective information.
The embodiment of the present invention also provides a kind of calculating equipment, including processor and memory, is stored on the memory
The computer instruction that can be run on the processor, the processor can execute following when running the computer instruction
Step: A. receives request of tracing to the source, and the request of tracing to the source includes the first operation mark for the first operation of digital content；B exists
The operation of the operation for the digital content before first operation is inquired in the block chain account book of block chain network
Information, wherein the operation information includes executing the information of the user of the operation；C returns to the operation information.
In one embodiment, before the step A, following steps are can also be performed in the processor: in O. reception
Chain request, the cochain request include the operation information and operation mark, Yi Jizhen for the current operation of the digital content
To the operation mark of the preceding once-through operation of the digital content；P. by the operation information of the current operation and operation mark, with
And the operation mark of the preceding once-through operation is written in the block chain account book.
In one embodiment, the step P may further include: P1. writes the receiving time that the cochain is requested
Enter the block chain account book.
In one embodiment, the step B may further include: B1. is inquired in the block chain account book and institute
State the operation mark of the preceding once-through operation of first operation of the first operation mark while write-in；B2. according to the institute inquired
Before stating the operation mark of once-through operation continue inquiry write-in simultaneously more before operation mark, until inquire it is described it is digital in
The initial operation held；B3. the operation information of the initial operation is determined.
In one embodiment, the operation information can also include the time for executing the operation and the operation
Version information.
In one embodiment, the operation may include upload operation and forwarding operation.
Fig. 3 is a kind of flow chart of digital content recording method for block chain network of the embodiment of the present invention.This reality
The scheme for applying example can be executed by the digital content platform.
Specifically, in the present embodiment, the digital content record generation method may include:
At 301, step A is executed, determines the operation information of the current operation for the digital content, wherein described
Operation information includes executing the information of the user of the current operation；
At 302, step B is executed, working as the digital content is generated according to the operation information of the current operation
The operation mark of preceding operation；
At 303, step C is executed, obtains the operation mark of the preceding once-through operation for the digital content；
At 304, step D is executed, generates cochain request, the cochain request includes for the current of the digital content
The operation information and operation mark of operation and the operation mark of the preceding once-through operation for the digital content.
In one embodiment, digital content recording method described in the present embodiment can also include: step E, to block chain
Node sends the cochain request.
Further, the step E may further include: step E1, use the user's for executing the current operation
The request of cochain described in key pair is signed；Step E2, Xiang Suoshu block chain node sends the cochain request after signature.
Further, the step E1 may alternatively be: using the user for executing the current operation key and
The request of cochain described in the key pair of the digital content platform is signed.
In one embodiment, the step B may further include: step B1, believe the operation of the current operation
Breath carries out Hash calculation, and using the cryptographic Hash being calculated as the operation mark of the current operation.
As a change case, the step B also be may further include: generate the operation mark, the behaviour at random
All operation marks generated in history with the digital content platform that make a check mark do not repeat.
In a change case of the present embodiment, the operation mark be can be by block chain node generation,
That is, the cochain request that digital content platform generates in the present embodiment can be only comprising the current operation for the digital content
Operation information.
In response to receiving the cochain request, the block chain node can execute step B described in the present embodiment, with life
At the operation mark of the current operation for the digital content, the step C can also be performed, be directed to the number to obtain
The operation mark of the preceding once-through operation of content, and the block chain account book is written into foregoing teachings.
In one embodiment, the cochain request, which can be, selects triggering based on user.
For example, the step A may further include: step A1 receives cochain instruction, and the cochain instruction is comprising executing
The information of the user of the current operation and the targeted digital content of the current operation；Step A2, on described
Chain instruction determines the operation information of the current operation for the digital content.
By upper, using the scheme of the present embodiment, rely on block chain technology that user is directed to the operation write area of digital content
Block chain account book realizes effective record to digital content communication process in a network.Specifically, it generates and is directed to the digital content
Current operation operation mark, it is ensured that the subsequent operation that the operation for digital content can be uniquely determined based on operation mark
Information, so that the operation each time for digital content can find corresponding user.Further, based on for digital content
The operation mark of current operation and the operation mark of preceding once-through operation generate the cochain request together, can obtain for number
The incidence relation that the front and back of content operates twice, and block chain account book is written into the incidence relation, utilize the tamper-resistant of block chain
Function ensures the authenticity of the incidence relation, so that the retrospect chain of digital content is formed by block chain account book, so that logarithm
The operating result each time of word content, which all becomes, discloses retrospective information.
The embodiment of the present invention also provides a kind of calculating equipment, including processor and memory, is stored on the memory
The computer instruction that can be run on the processor, the processor can execute following when running the computer instruction
Step: A. determines the operation information of the current operation for digital content, wherein the operation information includes that execution is described current
The information of the user of operation；B. the current operation for being directed to the digital content is generated according to the operation information of the current operation
Operation mark；C. the operation mark of the preceding once-through operation for the digital content is obtained；D. cochain request, the cochain are generated
Request includes for the operation information and operation mark of the current operation of the digital content and for the digital content
The operation mark of preceding once-through operation.
In one embodiment, the step A may further include: A1. receives cochain instruction, the cochain instruction packet
The targeted digital content of information and the current operation containing the user for executing the current operation；A2. according to institute
State the operation information that cochain instruction determines the current operation for the digital content.
In one embodiment, following steps can also be performed in the processor: E. is sent on described to block chain node
Chain request.
In one embodiment, the step B may further include: B1. to the operation information of the current operation into
Row Hash calculation, and using the cryptographic Hash being calculated as the operation mark of the current operation.
In one embodiment, the operation information can also include the time for executing the operation and the operation
Version information.
In one embodiment, the operation may include upload operation and forwarding operation.
In a typical application scenarios, with reference to Fig. 4 and Fig. 5, block chain network (not shown) can be by multiple blocks
Chain node 44 is constituted, and at least part block chain node 44 in the multiple block chain node 44 is chased after for constructing digital content
System of tracing back 43.
Specifically, in the digital content traceability system 43, digital content processing intelligence is installed on block chain node 44
Can be with about 443, the digital content processing intelligence and about 443 is operate in the sandbox 442 of the block chain node 44.
Further, by calling the digital content processing intelligence and about 443, the block chain node 44 can be executed
The scheme of above-mentioned Fig. 1 and embodiment illustrated in fig. 2.
Further, the digital content processing intelligence and about 443 is drawn by the intelligent contract in block chain node 44
441 verifyings are held up, and the scheme of above-mentioned Fig. 1 and embodiment illustrated in fig. 2 could be run after being verified.The digital content processing
The intelligent operation result with about 443, and the block chain account book is written by the intelligent contract engine 441.
The stage is recorded in digital content, user can trigger cochain instruction, the cochain instruction packet by user terminal 41
Information containing digital content and the user.
It is triggered in response to cochain instruction, the user terminal 41 can execute operation s1, with to the digital content
Platform 42 sends the cochain instruction.
In response to receiving the cochain instruction, the digital content platform 42 can execute above-mentioned embodiment illustrated in fig. 3
Scheme, to generate cochain request.
Further, the digital content platform 42 can execute operation s2, to send institute to the block chain node 44
State cochain request.At this point, the receiving end of the cochain request can be the either block in the digital content traceability system 43
Chain node 44, the block chain node 44 that the cochain as described in receiving earliest is requested, alternatively, being also possible to the digital content retrospect
Common recognition node in system 43.
In response to receiving the cochain request, the block chain node 44 can execute write operation, will be directed to described
The operation of the operation information and operation mark of the current operation of digital content and the preceding once-through operation for the digital content
Mark is written in the block chain account book, to complete the record to the single operation of digital content.
It traces to the source the stage in digital content, as the spy for needing to obtain specific user for digital content manipulation in specific time
When determining version information and being traced, the digital content platform 42 can be according to the specific operation for the digital content (i.e.
The first operation in embodiment illustrated in fig. 1) operation information determine associated operation mark (the i.e. in embodiment illustrated in fig. 1
One operation mark), and operation s3 is executed, to include tracing to the source for first operation mark to the block chain node 44 transmission
Request.
In response to receiving the request of tracing to the source, the block chain node 44 can execute to be implemented shown in above-mentioned Fig. 1 and Fig. 2
The scheme of example is directed to the number before first operation to inquire in the block chain account book of the block chain network
The operation information of the operation of content, and operation s4 is executed, to feed back the behaviour to trace to the source to the digital content platform 42
Make information.
In one embodiment, the digital content traceability system 43 can be oneself is built by the digital content platform 42
Vertical, at least one block chain node 44 is to belong in multiple block chain nodes 44 that the digital content traceability system 43 includes
In the participant in addition to the digital content platform 42, to play supervisory role.
In this embodiment, the block chain node 44 is not necessarily to verify the identity of digital content platform 42, that is, the number
The cochain request that content platform 42 is sent and/or request of tracing to the source can not use the key signature of the digital content platform 42.
In another embodiment, the digital content traceability system 43, which can be, belongs to publicly-owned chain, that is, multiple numbers
Word content platform 42 can by user on itself platform to the operation note of digital content in the digital content traceability system
In 43 same block chain account book.
In the present embodiment, the block chain node 44 needs to verify the identity of digital content platform 42, that is, the number
The key label of the digital content platform 42 are preferably used in the cochain request that word content platform 42 is sent and/or request of tracing to the source
Name, to ensure the authenticity of the cochain request and/or request of tracing to the source.
By upper, using the scheme of the embodiment of the present invention, using the ability of block chain, record and retrospect user are in digital content
The digital content operated on platform can effectively trace propagation of the digital content on network.
Further, a kind of storage medium is also disclosed in the embodiment of the present invention, is stored thereon with computer instruction, the calculating
Above-mentioned Fig. 1 is executed to method and technology scheme described in embodiment illustrated in fig. 3 when machine instruction operation.Preferably, the storage is situated between
Matter may include non-volatile (Non-Volatile) memory or non-transient (Non-Transitory) memory etc.
Computer readable storage medium.The storage medium may include ROM, RAM, disk or CD etc..
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (25)
1. a kind of digital content source tracing method for block chain network characterized by comprising
A. request of tracing to the source is received, the request of tracing to the source includes the first operation mark for the first operation of the digital content；
B. it is inquired in the block chain account book of the block chain network and is directed to the digital content before first operation
Operation operation information, wherein the operation information includes executing the information of the user of the operation；
C. the operation information is returned.
2. digital content source tracing method according to claim 1, which is characterized in that before the step A, further includes:
O. cochain request is received, the cochain request includes the operation information and operation for the current operation of the digital content
Mark and the operation mark of the preceding once-through operation for the digital content；
It P. will be described in the operation information of the current operation and operation mark and the write-in of the operation mark of the preceding once-through operation
In block chain account book.
3. digital content source tracing method according to claim 2, which is characterized in that the step P further comprises:
P1. the block chain account book is written in the receiving time cochain requested.
4. digital content source tracing method according to claim 1, which is characterized in that the step B further comprises:
B1. it is inquired in the block chain account book before first operation being written simultaneously with first operation mark once
The operation mark of operation；
B2. according to the operation mark of the preceding once-through operation inquired continue inquiry write-in simultaneously more before operation mark
Know, until inquiring the initial operation of the digital content；
B3. the operation information of the initial operation is determined.
5. digital content source tracing method according to claim 1, which is characterized in that the operation information further includes executing institute
State the time of operation and the version information of the operation.
6. digital content source tracing method according to claim 1, which is characterized in that the operation includes upload operation and turns
Hair operation.
7. a kind of calculating equipment, which is characterized in that including processor and memory, being stored on the memory can be described
The computer instruction run on processor, the processor execute following steps when running the computer instruction:
A. request of tracing to the source is received, the request of tracing to the source includes the first operation mark for the first operation of digital content；
B. the behaviour for the digital content before first operation is inquired in the block chain account book of block chain network
The operation information of work, wherein the operation information includes executing the information of the user of the operation；
C. the operation information is returned.
8. calculating equipment according to claim 7, which is characterized in that before the step A, the processor is also executed
Following steps:
O. cochain request is received, the cochain request includes the operation information and operation for the current operation of the digital content
Mark and the operation mark of the preceding once-through operation for the digital content；
It P. will be described in the operation information of the current operation and operation mark and the write-in of the operation mark of the preceding once-through operation
In block chain account book.
9. calculating equipment according to claim 8, which is characterized in that the step P further comprises:
P1. the block chain account book is written in the receiving time cochain requested.
10. calculating equipment according to claim 7, which is characterized in that the step B further comprises:
B1. it is inquired in the block chain account book before first operation being written simultaneously with first operation mark once
The operation mark of operation；
B2. according to the operation mark of the preceding once-through operation inquired continue inquiry write-in simultaneously more before operation mark
Know, until inquiring the initial operation of the digital content；
B3. the operation information of the initial operation is determined.
11. calculating equipment according to claim 7, which is characterized in that the operation information further includes executing the operation
Time and the operation version information.
12. calculating equipment according to claim 7, which is characterized in that the operation includes upload operation and forwarding operation.
13. a kind of digital content recording method for block chain network characterized by comprising
A. the operation information of the current operation for the digital content is determined, wherein the operation information includes described in execution
The information of the user of current operation；
B. the operation mark of the current operation for the digital content is generated according to the operation information of the current operation；
C. the operation mark of the preceding once-through operation for the digital content is obtained；
D. cochain request is generated, the cochain request includes the operation information and operation for the current operation of the digital content
Mark and the operation mark of the preceding once-through operation for the digital content.
14. digital content recording method according to claim 13, which is characterized in that the step A further comprises:
A1. cochain instruction is received, the information of user of the cochain instruction comprising executing the current operation and described current
Operate the targeted digital content；
A2. the operation information of the current operation for the digital content is determined according to cochain instruction.
15. digital content recording method according to claim 13, which is characterized in that further include:
E. the cochain request is sent to block chain node.
16. digital content recording method according to claim 13, which is characterized in that the step B further comprises:
B1. Hash calculation is carried out to the operation information of the current operation, and using the cryptographic Hash being calculated as described current
The operation mark of operation.
17. digital content recording method according to claim 13, which is characterized in that the operation information further includes executing
The version information of the time of the operation and the operation.
18. digital content recording method according to claim 13, which is characterized in that it is described operation include upload operation and
Forwarding operation.
19. a kind of calculating equipment, which is characterized in that including processor and memory, being stored on the memory can be in institute
The computer instruction run on processor is stated, the processor executes following steps when running the computer instruction:
A. the operation information of the current operation for digital content is determined, wherein the operation information includes that execution is described current
The information of the user of operation；
B. the operation mark of the current operation for the digital content is generated according to the operation information of the current operation；
C. the operation mark of the preceding once-through operation for the digital content is obtained；
D. cochain request is generated, the cochain request includes the operation information and operation for the current operation of the digital content
Mark and the operation mark of the preceding once-through operation for the digital content.
20. calculating equipment according to claim 19, which is characterized in that the step A further comprises:
A1. cochain instruction is received, the information of user of the cochain instruction comprising executing the current operation and described current
Operate the targeted digital content；
A2. the operation information of the current operation for the digital content is determined according to cochain instruction.
21. calculating equipment according to claim 19, which is characterized in that the processor also executes following steps:
E. the cochain request is sent to block chain node.
22. calculating equipment according to claim 19, which is characterized in that the step B further comprises:
B1. Hash calculation is carried out to the operation information of the current operation, and using the cryptographic Hash being calculated as described current
The operation mark of operation.
23. calculating equipment according to claim 19, which is characterized in that the operation information further includes executing the operation
Time and the operation version information.
24. calculating equipment according to claim 19, which is characterized in that the operation includes upload operation and forwarding behaviour
Make.
25. a kind of storage medium, is stored thereon with computer instruction, which is characterized in that the computer instruction executes when running
The step of any one of any one of claim 1 to 6 the method or claim 13 to 18 the method.
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