CN102752302B - Cloud server, method and system for copying digital resources - Google Patents

Abstract

The invention discloses a cloud server, and a method and a system for copying digital resources. In the method for copying the digital resource, the cloud server executes the following steps: receiving a copy request of the digital resource submitted by a resource requester through a terminal, wherein the copy request comprises identity information of the resource requester, a unique identification code of a resource copy and a unique identification code of the terminal; a judging step of judging whether the resource requester is allowed to copy the copy of the digital resource corresponding to the unique identification code of the resource copy through the terminal based on the identity information; and a sending step, if the judgment result is yes, the unique identification code and the identity information of the terminal are placed into the copy, and the copy is sent to the terminal. The embodiment of the invention can prevent the digital resource from being copied from one legal terminal to another illegal terminal and used, and effectively controls the illegal copying of the digital resource between the terminals.

Description

Cloud server, method and system for copying digital resources

technical field

The present invention relates to the dissemination technology of digital resources, in particular to a cloud server, and a method and system for copying digital resources.

Background technique

With the development of information technology and the popularization of mobile Internet, digital resources are playing an increasingly important role in people's daily life and work due to their many characteristics such as technology, environmental protection, and convenience. Therefore, various digital resource operation platforms should be used And born.

However, existing copies of digital resources (including but not limited to audio and video, electronic reading materials such as newspapers, magazines, books, games, software, practical information, etc., or a combination of the above digital content) cannot control the number of copies from the source, nor can they Illegal copying from the control terminal cannot be used. Especially with the development of technology, there are more and more types of hardware terminals used by users to read digital resources, and the operating platforms used by different terminals are also different (such as: iOS system, android system, windows system, etc.) , How to enable digital resources to spread and communicate between terminals on different platforms, there is currently no corresponding rigorous and low-cost technology.

Contents of the invention

The technical problem to be solved by the invention is to overcome the defect that illegal copying of digital resources cannot be controlled at present.

In order to solve the above technical problems, the present invention provides a method for copying digital resources, wherein the cloud server performs the following steps:

The receiving step is to receive the copy request of the digital resource submitted by the resource requester through the terminal, and the copy request includes the identity information of the resource requester, the unique identification code of the resource copy and the unique identification code of the terminal;

Judging step, judging based on the identity information whether to allow the resource requester to copy the copy of the digital resource corresponding to the unique identification code of the resource copy through the terminal;

In the sending step, if the judging result is yes, then put the unique identification code and identity information of the terminal into the copy, and then send the copy to the terminal.

Preferably, the judging step includes: after judging based on the identity information that the resource requester has the right to copy the digital resource corresponding to the resource copy unique identification code, and the number of copies of the resource copy unique identification code is less than the When the preset duplication threshold of the unique identification code of the resource copy is set, the judgment result is yes, wherein the copied quantity is the number of terminals currently storing copies of the digital resource corresponding to the unique identification code of the resource copy;

And, an update step is also included: if the copy is sent to the terminal, update the information related to the number of terminals currently storing copies of the digital resource corresponding to the resource copy unique identification code.

Preferably, the method also includes:

In the recording step, if the copy is sent to the terminal, record the unique identification code of the terminal or record at least one of the unique identification code of the terminal and the identity information and the current time.

Preferably, the method includes:

When the cloud server receives a return request for putting the copy back to the cloud sent by the resource requester through the terminal, it instructs the terminal to delete the copy it stores, and updates the resource copy corresponding to the resource copy unique identification code currently stored. Information about the number of terminals for copies of digital resources.

The present invention also provides a cloud server, including a receiving module, a judging module, an inserting module and a sending module, wherein:

The receiving module is used to receive a digital resource copy request sent by a resource requester through a terminal, and the copy request includes the identity information of the resource requester, the unique identification code of the resource copy, and the unique identification code of the terminal;

The judging module is used to judge whether to allow the resource requester to copy the copy of the digital resource corresponding to the unique identification code of the resource copy through the terminal based on the identity information;

The insertion module is used for inserting the identity information and the terminal unique identification code into the copy when the judging module determines that the resource requester is allowed to copy the copy of the digital resource corresponding to the unique identification code of the resource copy through the terminal;

The sending module is used for sending the copy to the terminal.

Preferably, the judging module includes a first judging unit, and one of the second judging unit and the third judging unit:

The first judging unit is configured to judge whether the resource requester has the right to copy the digital resource based on the identity information;

The second judging unit is configured to judge whether to allow the resource requester to copy the copy through the terminal;

The third judging unit is used to judge whether the copied quantity of the unique identification code of the resource copy is less than the preset copy threshold, and the copied quantity is the copy of the digital resource corresponding to the unique identification code of the resource copy currently stored number of terminals.

Preferably, the cloud server includes:

An update module, configured to update information related to the number of terminals currently storing copies of the digital resource corresponding to the resource copy unique identification code if the copy is sent to the terminal.

Preferably, the cloud server includes:

The recording module is used for the sending module to record the unique identification code of the terminal or record at least one of the unique identification code of the terminal and identity information and current time when the sending module sends the copy to the terminal.

Preferably, the cloud server includes:

The put-back module is used to instruct the terminal to delete the copy stored in it when receiving a put-back request for putting the copy back to the cloud sent by the resource requester through the terminal, and to update the current storage with the unique identifier of the resource copy Information about the number of terminals for copies of the digital resource corresponding to the code;

Wherein, the receiving module is also used for receiving the return request of the copy sent by the resource requester through the terminal.

According to another aspect of the present invention, a system for copying digital resources is also provided, including a terminal and a cloud server, wherein:

The terminal is used to receive the copy request of the digital resource submitted by the resource requester to the cloud server, and send the copy request to the cloud server; the copy request includes the identity information of the resource requester, the unique identification code of the resource copy, and the identification code;

The cloud server is used to determine whether to allow the resource requester to copy the copy of the digital resource corresponding to the unique identification code of the resource copy through the terminal based on the identity information after receiving the copy request, and if the judgment result is allowed, then Put the identity information and the terminal unique identification code into the copy and send it to the terminal.

Preferably, the cloud server is configured to determine that the resource requester is allowed to pass through the terminal when the resource requester has the right to copy the digital resource and the number of copies of the unique identifier code of the resource copy is less than a preset copy threshold. copying the copy of the digital resource corresponding to the unique identifier of the resource copy, wherein the copied quantity is the number of terminals currently storing the copy of the digital resource corresponding to the unique identifier of the resource copy.

Preferably, the cloud server is also used for:

If the copy is sent to the terminal, update the information terminal related to the number of terminals currently storing the copy of the digital resource corresponding to the unique identification code of the resource copy.

Preferably, the cloud server is used to record the unique identification code of the terminal or record at least one of the unique identification code of the terminal and identity information and current time when sending the copy to the terminal.

Preferably, the cloud server is used to update the information related to the number of terminals currently storing copies of the digital resource corresponding to the unique identifier code of the resource copy according to the return request sent by the resource requester;

Wherein, the terminal is used for receiving the return request of the copy sent by the resource requester to the cloud server and sending it to the cloud server.

Compared with the prior art, the embodiment of the present invention can prevent digital resources from being copied and used from one legal terminal to another illegal terminal, effectively controlling the illegal copying of digital resources between terminals. The embodiment of the present invention not only facilitates users to spread and exchange digital resources using terminals of different operating platforms, but also ensures the security and controllability of digital resources.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Description of drawings

The accompanying drawings are used to provide a further understanding of the technical solution of the present invention, and constitute a part of the description, and are used together with the embodiments of the present invention to explain the technical solution of the present invention, and do not constitute a limitation to the technical solution of the present invention. In the attached picture:

FIG. 1 is a schematic flowchart of a method for copying digital resources according to an embodiment of the present invention.

FIG. 2 is a schematic structural diagram of a cloud server according to an embodiment of the present invention.

Detailed ways

The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. It should be noted that, in the case of no conflict, the embodiments in the present application and any combination of features in the embodiments are still within the protection scope of the present invention.

First of all, if there is no conflict, the embodiment of the present invention and the combination of various features in the embodiment on the premise of no conflict are within the protection scope of the present invention. In addition, the steps shown in the flow diagrams of the figures may be performed in a computer system, such as a set of computer-executable instructions, and, although a logical order is shown in the flow diagrams, in some cases, the sequence may be different. The steps shown or described are performed in the order herein.

As shown in FIG. 1 , the method for copying digital resources in the embodiment of the present invention mainly includes the following methods.

Step S110, the terminal receives the digital resource copy request sent by the user to the cloud server, and sends the copy request to the cloud server; wherein, the copy request includes the user's identity information, the resource copy unique identification code and the terminal unique identification code. Wherein, the terminal unique identification code is used to effectively distinguish different terminals.

It should be noted that resource requesters such as users, third-party cooperation platforms, operating platforms, or systems can send digital resource copy requests to the cloud server. However, for the sake of illustration, the following only uses the example of users as resource requesters. . In addition, the above-mentioned server may not be a server in the cloud platform, but may also be a server of other network platforms.

In the embodiment of the present invention, the user can obtain the unique identification code of the resource copy by purchasing or renting.

The above-mentioned cloud server may be a network platform composed of more than one smart device provided by the digital resource operator in the cloud computing network.

It can be seen that, in the embodiment of the present invention, each copy of a digital resource has a corresponding resource copy unique identification code (abbreviated as unique identification code). It can be set that for a unique identification code, only the number of copies of the preset copy threshold is allowed. For example, if the preset copy threshold corresponding to a unique identification code is 2, after the user obtains the unique identification code, only two terminals are allowed to simultaneously store copies of the digital resource corresponding to the unique identification code. The preset copy threshold may be determined by the publisher or the operator, for example, one time or multiple times. In other words, when the system assigns a resource copy unique identification code to a user, it means that the user has the specific right to use the digital resource corresponding to the resource copy unique identification code. The specific use right may be that the user can copy one or more (preset copy threshold number) copies of the digital resource.

Step S120, the cloud server receives the copy request sent by the user through the terminal, and judges whether the user has the right to copy the digital resource by comparing the user's identity information with the identity information stored in the cloud, if so, go to step S130, otherwise go to step S180.

Step S130, the cloud server determines whether the user is allowed to copy the copy of the digital resource corresponding to the resource copy unique identification code through the terminal according to the resource copy unique identification code in the copy request, if yes, go to step S140, otherwise go to step S180.

Step S140, the cloud server obtains from the cloud information related to the number of terminals currently storing copies of the digital resource corresponding to the resource copy unique identifier code (referred to as the copied quantity); the copied quantity of the resource copy unique identifier code If it is less than the preset copy threshold, go to step S150; otherwise, go to step S180.

In the embodiment of the present invention, the above-mentioned information related to the number of terminals currently storing copies of the digital resource corresponding to the unique identifier code of the resource copy can be set by the cloud server by setting the copied quantity attribute for the unique identifier code of the resource copy To achieve this, the attribute of the copied quantity is used to indicate the number of terminals currently storing copies of the digital resource corresponding to the resource copy unique identifier code. When any terminal copies the copy of the digital resource corresponding to the unique identifier code of the resource copy, the value of the copied quantity attribute is increased by 1; otherwise, when any terminal returns the copy of the digital resource corresponding to the unique identifier code of the resource copy , which decrements the value of the copied amount property by 1. In this way, the cloud server can conveniently obtain the number of terminals currently storing copies of the digital resource corresponding to the unique identifier code of the resource copy.

In addition, the information related to the number of terminals of the copy of the digital resource corresponding to the resource copy unique identifier code may also be other information. By recording the terminal unique identification of the terminal that has stored the copy of the digital resource corresponding to the unique identification code of the resource copy, it is also possible to obtain the copy of the digital resource corresponding to the unique identification code of the resource copy by calculating the number of unique identifications of these terminals Information about the number of terminals.

Step S150, the cloud server puts the user's identity information and the terminal unique identification code into the copy of the digital resource corresponding to the resource copy unique identification code in the copy request, and puts the user's identity information, the terminal unique identification code A copy is sent to the terminal.

The embodiment of the present invention puts the user's identity information and terminal unique identification code into the copy of the digital resource, which can effectively prevent the copy from being copied from the permitted terminal to other terminals and use it, thereby controlling the transfer of digital resources between terminals. Illegal copying between.

In step S160, the cloud server updates information related to the number of terminals currently storing copies of the digital resource corresponding to the resource copy unique identifier. For example, the number of terminals that currently store copies of the digital resource corresponding to the resource copy unique identifier can be reflected by recording the association between the unique identifier of the terminal and the unique identifier of the resource copy. As another example, adding 1 to the value of the variable dedicated to recording the number of terminals currently storing copies of the digital resource corresponding to the unique identifier code of the resource copy indicates that a new resource copy unique identifier corresponding to the resource copy has been added. terminal for copies of digital resources.

Step S170, the cloud server records the unique terminal identification code of the user. In addition, at least one of the unique identification code of the terminal and identity information and current time may also be recorded. The embodiments of the present invention can record these information as digital resource copy recording information.

In step S180, the cloud server sends a prompt message to the terminal rejecting the user from copying the digital resource. For example, if the identity information of the user in the copy request is inconsistent with the identity information stored in the cloud, a prompt message indicating that the identity information is illegal can be fed back to the terminal; The copy of the digital resource corresponding to the resource copy unique identification code can be fed back to the terminal that the copy of the digital resource corresponding to the resource copy unique identification code in the copy request cannot be copied; for example, the copied number of the resource copy unique identification code When it is greater than or equal to the preset copy threshold, a prompt message that there is no remaining copy of the digital resource can be fed back to the terminal.

In the embodiment of the present invention, the user can actively return the use right of the copy. When the cloud server receives the resource requester’s request to put the copy back into the cloud sent by the terminal, it instructs the terminal to delete the stored copy and update the digital resource currently stored corresponding to the unique identification code of the resource copy. Information about the number of copies of the terminal. That is to say, when the user voluntarily returns the use right of the copy of the digital resource, the cloud server will return the use right of the copy to the cloud of the owner of the digital resource, generate and record the return log, and delete the copy from the user's terminal.

In the embodiment of the present invention, when the preset copy threshold is 1, only one terminal is allowed to use the copy corresponding to the unique identification code. If the user wants to use the copy on the second terminal, the first terminal needs to put the copy first. Back to the cloud, in this way, the cloud server makes the copied quantity equal to 0 by updating the copied quantity representing the number of terminals currently storing copies of the digital resource corresponding to the resource copy unique identifier code. In this way, when the second terminal tries to request the copy, the condition that the copied quantity is less than the preset copy threshold is satisfied, thereby allowing the second terminal to copy the copy from the cloud.

For the same digital resource, a terminal installed with, for example, a Symbian system, Apple's iOS system, Android system, Windows system, etc., can copy its copy. When the cloud server determines that the user can copy the copy of the digital resource, it puts the user's identity information and the unique identification code of the terminal into the copy, and then sends the copy to the terminal.

No matter what kind of terminal the user uses, the terminal type can be home appliances with data processing functions, computers such as desktops, notebooks and tablet computers, mobile phones, digital products, etc. Copy a copy of a digital resource, and the copyable times of the digital resource under the user name will be reduced by one. In this way, it is not only convenient for users to realize cross-platform multi-terminal dissemination and exchange of digital resources, but also ensures the security and controllability of digital resources.

The digital resource copying system of the embodiment of the present invention mainly includes a terminal and a cloud server. Please understand it in conjunction with the method for copying digital resources in the embodiment of the present invention shown in FIG. 1 .

In the copy system, the terminal is used to receive the copy request of the digital resource sent by the user to the cloud server, and send the copy request to the cloud server; the copy request includes the identity information of the user, the unique identification code of the resource copy and Terminal unique identification code.

In the copy system, after receiving the copy request, the cloud server is used to determine, based on the user information in the copy request, that the user can copy the digital resource corresponding to the resource copy unique identification code in the copy request through the terminal. When copying, put the identity information and terminal unique identification code into the copy and send it to the terminal.

In the copy system of the embodiment of the present invention, the cloud server is used to determine that the user is allowed to pass The terminal copies the digital resource copy corresponding to the resource copy unique identifier code in the copy request.

In the copy system of the embodiment of the present invention, the cloud server is used to update the information related to the number of terminals currently storing copies of the digital resource corresponding to the resource copy unique identification code when sending the copy to the terminal.

In the copy system according to the embodiment of the present invention, the cloud server is used to record the unique identification code of the terminal or record at least one of the unique identification code of the terminal, identity information and current time when sending the copy to the terminal.

In the copy system according to the embodiment of the present invention, the cloud server is used to withdraw the use right of the copy from the terminal according to the return request sent by the user;

Wherein, the terminal is used for receiving the put-back request of the copy sent by the user to the cloud server and sending it to the cloud server.

In combination with the digital resource copying method shown in FIG. 1 , the cloud server of the embodiment of the present invention shown in FIG. 2 includes a receiving module 210 , a judging module 220 , an inserting module 230 and a sending module 240 .

The receiving module 210 is used for receiving a digital resource copy request sent by a user through a terminal, and the copy request includes the user's identity information, a resource copy unique identification code and a terminal unique identification code.

The judging module 220 is connected with the receiving module 210, and is used for judging whether to allow the resource requester to copy the copy of the digital resource corresponding to the unique identification code of the resource copy through the terminal based on the identity information.

The insertion module 230 is connected with the judgment module 220, and is used for setting the identity information and the terminal unique identification code to import this copy.

The sending module 240 is connected to the embedding module 230, and is used for sending the copy to the terminal.

In an embodiment of the present invention, the judging module 220 may include:

a first judging unit, configured to judge whether the user has the right to copy the digital resource based on the identity information;

The second judging unit is connected to the first judging unit, and is used to judge whether the user can copy the copy through the terminal when the first judging unit judges that the user has the copy authority of the digital resource;

The third judging unit is connected with the first judging unit, and is used to judge whether the copied quantity of the unique identification code of the resource copy is less than the preset copying threshold, and the copied quantity is currently stored corresponding to the unique identification code of the resource copy The number of terminals for copies of the digital resource. The preset copy threshold means that the preset copy threshold number of terminals are allowed to simultaneously store the copy of the digital resource corresponding to the unique identifier code of the resource copy.

In an embodiment of the present invention, the server may include:

An update module, configured for the sending module 240 to update information related to the number of terminals currently storing copies of the digital resource corresponding to the resource copy unique identifier code when the sending module 240 sends the copy to the terminal.

In an embodiment of the present invention, the server may include:

The recording module is configured to record the unique identification code of the terminal when the sending module 240 sends the copy to the terminal, and may also record the unique identification code of the terminal and at least one of the identity information and the current time.

In an embodiment of the present invention, the server may include:

The put-back module, when receiving a put-back request for putting the copy back to the cloud sent by the resource requester through the terminal, instructs the terminal to delete the copy stored by it, and update the resource copy corresponding to the unique identification code currently stored Information about the number of terminals that have a copy of the digital resource, so that the right to use the copy can be withdrawn from the terminal, and the user is allowed to obtain the copy through other terminals;

Wherein, the receiving module 210 is also configured to receive the put-back request of the copy sent by the user through the terminal.

Although the embodiments disclosed in the present invention are as above, the described content is only an embodiment adopted for the convenience of understanding the present invention, and is not intended to limit the present invention. Anyone skilled in the technical field to which the present invention belongs can make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed by the present invention, but the patent protection scope of the present invention, The scope defined by the appended claims must still prevail.

Claims (12)

1. a copy method for digital resource, cloud server performs following steps:

Receiving step, receives the copy request of the digital resource that resource requestor is submitted to by terminal, comprises the identity information of resource requestor, Resource Replica exclusive identification code and terminal exclusive identification code in this copy request;

Determining step, judges whether to allow this resource requestor to copy the copy of the digital resource corresponding with this Resource Replica exclusive identification code by this terminal based on described identity information; Comprise: judge based on described identity information this resource requestor there is the copy authority of the digital resource corresponding with this Resource Replica exclusive identification code and this Resource Replica exclusive identification code copy that quantity is less than this Resource Replica exclusive identification code default copy threshold value time, judged result is yes, wherein, this has copied quantity is the current quantity storing the terminal of the copy of the digital resource corresponding with this Resource Replica exclusive identification code;

Forwarding step, if the determination result is YES, then, after this terminal exclusive identification code and identity information being inserted this copy, sends to this terminal by this copy.

2. method according to claim 1, wherein:

The method also comprises step of updating: if this copy is sent to this terminal, then upgrade the information relevant with the current quantity storing the terminal of the copy of the digital resource corresponding with this Resource Replica exclusive identification code.

3. method according to claim 1 and 2, wherein, the method also comprises:

Recording step, if this copy is sent to this terminal, then records this terminal exclusive identification code or records this terminal exclusive identification code and both identity information and current time one of at least.

4. method according to claim 1 and 2, wherein, the method comprises:

This cloud server receive resource requestor by this terminal send by this copy put back to high in the clouds put back to request time, indicating terminal deletes its this copy stored, and upgrades the information relevant with the current quantity storing the terminal of the copy of the digital resource corresponding with this Resource Replica exclusive identification code.

5. a cloud server, comprises receiver module, judge module, inserts module and sending module, wherein:

This receiver module, for receiving the copy request of the digital resource that resource requestor is sent by terminal, comprises the identity information of resource requestor, Resource Replica exclusive identification code and terminal exclusive identification code in this copy request;

This judge module, allows this resource requestor to copy the copy of digital resource corresponding to this Resource Replica exclusive identification code by this terminal for judging whether based on this identity information;

This inserts module, when judging to allow this resource requestor to copy the copy of the digital resource corresponding with this Resource Replica exclusive identification code by this terminal for this judge module, this identity information, terminal exclusive identification code is inserted this copy;

This sending module, wherein for this copy is sent to this terminal;

Wherein, this judge module comprises the first judging unit and one of the second judging unit and the 3rd both judging units:

Described first judging unit, for judging based on this identity information whether this resource requestor has the copy authority of this digital resource;

Described second judging unit, allows this resource requestor to copy this copy by this terminal for judging whether;

Described 3rd judging unit, for judge this Resource Replica exclusive identification code copy quantity whether be less than preset copy threshold value, the described quantity that copied is the current quantity storing the terminal of the copy of the digital resource corresponding with this Resource Replica exclusive identification code.

6. cloud server according to claim 5, wherein, this cloud server comprises:

Update module, if for this copy is sent to this terminal, then upgrades the information relevant with the current quantity storing the terminal of the copy of the digital resource corresponding with this Resource Replica exclusive identification code.

7. cloud server according to claim 5, wherein, this cloud server comprises:

Logging modle, to send to this copy for this sending module and to record this terminal exclusive identification code or record terminal exclusive identification code and both identity information and current time during this terminal one of at least.

8. cloud server according to claim 5, wherein, this cloud server comprises:

Put back to module, for receive resource requestor by this terminal send by this copy put back to high in the clouds put back to request time, indicating terminal deletes its this copy stored, and upgrades the information relevant with the current quantity storing the terminal of the copy of the digital resource corresponding with this Resource Replica exclusive identification code;

Wherein, this receiver module also puts back to request for this receiving this copy that resource requestor sent by this terminal.

9. a copy system for digital resource, comprises terminal and cloud server, wherein:

The copy request of digital resource of this terminal for receiving resource requestor and submitting to this cloud server, and this copy request is sent to cloud server; The identity information of resource requestor, Resource Replica exclusive identification code and terminal exclusive identification code is comprised in this copy request;

After this cloud server is used for receiving this copy request, judge whether allow this resource requestor to copy the copy of the digital resource corresponding with this Resource Replica exclusive identification code by this terminal based on described identity information, if this identity information, terminal exclusive identification code for allowing, are then inserted this copy and are sent to this terminal by judged result;

Wherein: described cloud server be used for this resource requestor there is the copy authority of this digital resource and this Resource Replica exclusive identification code copy quantity be less than preset copy threshold value time, be judged as allowing this resource requestor to copy the copy of the digital resource corresponding with this Resource Replica exclusive identification code by this terminal, wherein, this has copied quantity is the current quantity storing the terminal of the copy of the digital resource corresponding with this Resource Replica exclusive identification code.

10. system according to claim 9, wherein, this cloud server also for:

If this copy is sent to this terminal, then upgrade the information relevant with the current quantity storing the terminal of the copy of the digital resource corresponding with this Resource Replica exclusive identification code.

11. systems according to claim 9, wherein:

This cloud server is used for this copy to send to and records this terminal exclusive identification code during this terminal or record this terminal exclusive identification code and both identity information and current time one of at least.

12. systems according to claim 9, wherein:

What this cloud server was used for sending according to resource requestor puts back to request, upgrades the information relevant with the current quantity storing the terminal of the copy of the digital resource corresponding with this Resource Replica exclusive identification code;

Wherein, this terminal gives this cloud server for the request Concurrency of putting back to of this copy receiving resource requestor and send to this cloud server.