CN107612695A - Knowledge management method, terminal and server based on block chain - Google Patents

Abstract

The invention discloses a block chain-based knowledge management method, comprising the following steps: sending data information to a server; receiving a unique code created by the server according to item information of the data information; combining the item information and the unique code to form a data packet and sending to the server; receive the timestamp stamped by the server on the packet; write the packet containing the timestamp to the blockchain. The invention also discloses a master terminal and a server. The invention can ensure the timely validity of knowledge information records.

Description

Blockchain-based knowledge management method, terminal and server

technical field

The present invention relates to the technical field of the Internet of Things, in particular to a block chain-based knowledge management method, terminal and server.

Background technique

Blockchain (Blockchain) is an important concept of Bitcoin. Blockchain is a series of data blocks associated with cryptographic methods. Each data block contains information about all Bitcoin network transactions in the past ten minutes. It is used to verify the validity of its information (anti-counterfeiting) and generate the next block.

Blockchain provides a decentralized credit establishment paradigm that does not require trust accumulation. The essence of blockchain technology is a method of data storage, transmission and certification that is decentralized and embedded in a distributed structure. Data blocks (Block) are used to replace the current dependence of the Internet on the central server, so that all data changes or transaction items are recorded. On top of a cloud system, the self-certification of data in data transmission is theoretically realized.

Blockchain can be applied to fields such as data storage, data authentication, and asset management, but the existing blockchain cannot guarantee the timely validity of knowledge information records.

Contents of the invention

The main purpose of the present invention is to provide a blockchain-based knowledge management method, terminal and server, which can ensure the timely validity of knowledge information records.

In order to achieve the above object, the present invention provides a blockchain-based knowledge management method, comprising the following steps: sending data information to the server; receiving the unique code created by the server according to the entry information of the data information; combining the entry information and the unique code to form The data packet is sent to the server; the time stamp stamped by the server on the data packet is received; the data packet containing the time stamp is written to the blockchain.

Preferably, the step of combining the entry information and the unique code to form a data packet and sending it to the server includes: performing a hash operation on the entry information to obtain a hash code; combining the unique code and the hash code to form a data packet and sending it to the server.

Preferably, the blockchain-based knowledge management method further includes: sending query information to the server; receiving item information obtained by the server through screening of unique codes according to the query information; and selecting item information for download.

In addition, in order to achieve the above object, the present invention also provides a terminal, including: a data sending module, used to send data information to the server; a creation module, connected to the sending module, used to receive the unique code; the data packet forming module, connected with the creation module, is used to combine the entry information and the unique code to form a data packet and send it to the server; the time stamp receiving module, connected to the data packet forming module, is used to receive the server to stamp the data packet Timestamp; the writing module is connected with the timestamp receiving module, and is used to write the data packet containing the timestamp into the block chain.

Preferably, the data packet forming module includes: a hash code acquisition module, connected to the creation module, for performing a hash operation on the entry information to obtain a hash code; a combination module, connected to the hash code acquisition module, for combining the unique code Combined with the hash code to form a data packet and sent to the server.

In addition, to achieve the above object, the present invention also provides a terminal, including: a first memory, a first processor, and a first computer program stored in the first memory and operable on the first processor, the first computer When the program is executed by the first processor, the steps of the aforementioned blockchain-based knowledge management method are implemented.

In addition, in order to achieve the above purpose, the present invention also provides a blockchain-based knowledge management method, including the following steps: receiving data information sent by the terminal; using a preset encoding method to create a unique code for each entry information in the data information ; Stamp the data packet formed by the terminal based on the entry information and the unique code; send the time stamp to the terminal, so that the terminal writes the data packet containing the time stamp into the blockchain.

Preferably, the blockchain-based knowledge management method further includes: receiving query information sent by the terminal; screening unique codes according to the query information to obtain entry information; sending the entry information to the terminal so that the terminal selects the entry information for download.

In addition, in order to achieve the above object, the present invention also provides a server, including: a data receiving module, used to receive data information sent by the terminal; a unique code creation module, connected to the data receiving module, used to use a preset encoding method for Create a unique code for each entry information in the information; the timestamp stamping module is connected with the unique code creation module, and is used to stamp the data packet formed by the terminal according to the entry information and the unique code; the timestamp sending module is connected with the unique code creation module. The timestamp stamping module is connected to send the timestamp to the terminal, so that the terminal writes the data packet containing the timestamp into the blockchain.

In addition, in order to achieve the above object, the present invention also provides a server, including: a second memory, a second processor, and a first computer program stored in the second memory and operable on the second processor, the first computer When the program is executed by the second processor, the steps of the aforementioned blockchain-based knowledge management method are realized.

The present invention sends data information to the server; receives the unique code created by the server according to the entry information of the data information; forms a data packet according to the combination of the entry information and the unique code and sends it to the server; receives the time stamp stamped by the server on the data packet; will include The time-stamped data packet is written into the blockchain. Once the hash operation information is written into the blockchain, it is difficult to change. Once tampered with, even a single character change will lead to significant changes in the calculation results. In intellectual property rights In the field of protection, hash codes combined with time stamps can provide a reliable proof of time, which can ensure the timely validity of knowledge information records.

Description of drawings

FIG. 1 is a schematic structural diagram of a terminal in a hardware operating environment involved in an embodiment of the present invention;

Fig. 2 is a schematic flow chart of the first embodiment of the blockchain-based knowledge management method of the present invention;

FIG. 3 is a schematic structural diagram of a first embodiment of a terminal according to the present invention;

FIG. 4 is a schematic structural diagram of a second embodiment of a terminal according to the present invention;

5 is a schematic flow diagram of a second embodiment of the blockchain-based knowledge management method of the present invention;

FIG. 6 is a schematic structural diagram of the first embodiment of the server of the present invention;

FIG. 7 is a schematic structural diagram of a second embodiment of the server of the present invention;

FIG. 8 is a schematic structural diagram of a server in the hardware operating environment involved in the solution of the embodiment of the present invention.

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

detailed description

It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

The main solution of the embodiment of the present invention is: the terminal sends data information to the server, and the server creates a unique code for the first item information in the data information; the terminal forms a data packet according to the combination of the item information and the unique code; The packet is timestamped, and the terminal writes the packet containing the timestamp to the blockchain.

Since the block chain in the prior art cannot guarantee the timely validity of knowledge information records, the present invention provides a solution. The terminal sends data information to the server, and the server creates a unique code for the first item information in the data information; The information and the unique code are combined to form a data packet; the server stamps the time stamp on the data packet at the request of the terminal, and the terminal writes the data packet containing the time stamp into the blockchain to ensure the timely validity of knowledge information records.

As shown in FIG. 1 , FIG. 1 is a schematic structural diagram of a terminal in a hardware operating environment involved in the solution of the embodiment of the present invention.

The embodiment terminal of the present invention can be PC, also can be smart mobile phone, panel computer, e-book reader, MP3 (Moving Picture Experts Group Audio Layer III, moving picture expert compresses standard audio level 3) player, MP4 (Moving Picture Experts Group Audio Layer III) player, MP4 (Moving Picture Experts Group Audio Layer IV, dynamic image expert compression standard audio layer 3) Players, portable computers and other mobile terminal devices with display functions.

As shown in FIG. 1 , the terminal may include: a first processor 1001 , such as a CPU, a first network interface 1004 , a first user interface 1003 , a first memory 1005 , and a first communication bus 1002 . Wherein, the first communication bus 1002 is used to realize connection and communication between these components. The first user interface 1003 may include a display screen (Display) and an input unit such as a keyboard (Keyboard). Optionally, the first user interface 1003 may also include a standard wired interface and a wireless interface. The first network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface). The first memory 1005 can be a high-speed RAM memory, or a stable memory (non-volatile memory), such as a disk memory. Optionally, the first memory 1005 may also be a storage device independent of the aforementioned first processor 1001 .

Optionally, the terminal may further include a camera, an RF (Radio Frequency, radio frequency) circuit, a sensor, an audio circuit, a WiFi module, and the like. Among them, sensors such as light sensors, motion sensors and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display screen according to the brightness of the ambient light, and the proximity sensor may turn off the display screen and/or backlight. As a kind of motion sensor, the gravitational acceleration sensor can detect the magnitude of acceleration in various directions (generally three axes), and can detect the magnitude and direction of gravity when it is stationary, and can be used for applications that recognize the posture of mobile terminals (such as horizontal and vertical screen switching, Related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tap), etc.; of course, the mobile terminal can also be equipped with other sensors such as gyroscope, barometer, hygrometer, thermometer, infrared sensor, etc. No longer.

Those skilled in the art can understand that the terminal structure shown in FIG. 1 does not constitute a limitation on the terminal, and may include more or less components than those shown in the figure, or combine some components, or arrange different components.

As shown in FIG. 1 , the first memory 1005 as a computer storage medium may include a first operating system, a first network communication module, a first user interface module and a first computer program.

In the terminal shown in Figure 1, the first network interface 1004 is mainly used to connect to the background server and perform data communication with the background server; the first user interface 1003 is mainly used to connect to the client (client) and perform data communication with the client ; and the first processor 1001 can be used to call the first computer program stored in the first memory 1005, and perform the following operations:

Send data information to the server;

Receive the unique code created by the server according to the entry information of the data information;

Combine the entry information and the unique code to form a data packet and send it to the server;

Receive the timestamp stamped by the server on the data packet;

Write a packet containing a timestamp to the blockchain.

Further, the first processor 1001 may call the first computer program stored in the first memory 1005, and also perform the following operations:

Perform a hash operation on the entry information to obtain the hash code;

Combine the unique code with the hash code to form a data packet and send it to the server.

Further, the first processor 1001 may call the first computer program stored in the first memory 1005, and also perform the following operations:

Send query information to the server;

The receiving server obtains the item information obtained by screening the unique code according to the query information;

Select entry information to download.

Referring to Fig. 2, the first embodiment of the present invention provides a blockchain-based knowledge management method, the blockchain-based knowledge management method comprising:

Step S10, sending data information to the server.

Before step S10, the user identity information is transmitted to the server to create a pair of keys, wherein the keys include a private key and a public key; and the login information encrypted by the private key is sent to the server for login. Specifically, the terminal provides user identity information and other content registration, and sends it to the server to verify the user identity information, and then makes the server create a pair of keys for the user. Among them, the public key is public on the whole network, and the private key is kept by the user himself. When the user needs to log in, the terminal uses the private key to encrypt the login information and sends it to the server, so that the server can use the public key of the corresponding terminal to decrypt and authenticate the login information.

In step S10, the terminal encrypts the data information to be sent by Advanced Encryption Standard (Advanced Encryption Standard, AES) or other methods, and sends the encrypted data information to the server. In the embodiment of the present invention, the data information may include text, picture, audio, video and other information content.

Step S11, receiving the unique code created by the server according to the entry information of the data information.

Wherein, the unique code includes at least one of identity, item category, and item summary. Of course, the unique code may also include other information, which will not be repeated here.

Step S12, combine the entry information and the unique code to form a data packet and send it to the server.

In step S12, a hash operation is performed on the entry information to obtain a hash code; the unique code and the hash code are combined to form a data packet and sent to the server. Once the hash operation information is written into the blockchain, it is difficult to change it. Once it is tampered with, even a single character change will lead to significant changes in the operation results. In the field of intellectual property protection, hash codes can be combined with timestamps. Provide a reliable proof of time, which can ensure the timely validity of knowledge information records.

Step S13, receiving the time stamp affixed by the server to the data packet.

Specifically, the time stamp request information is first sent to the server, so that the server adds a time stamp to the data packet according to the time stamp request information, and the terminal receives the time stamp.

Step S14, write the data packet containing the time stamp into the block chain.

The completion of data storage and management based on blockchain technology in this way can ensure the timely validity of knowledge information records.

In the embodiment of the present invention, the high redundancy storage (each node stores a piece of data), decentralization, high security and privacy protection of the area chain makes it particularly suitable for storing and protecting important private data, so as to avoid Large-scale data loss or leakage caused by attacks on centralized institutions or improper authority management. Similar to Bitcoin transaction data, any data can be hashed to generate a corresponding Merkle (Merkle) tree and packaged into the blockchain, and the security is guaranteed through hashing of internal consensus nodes and asymmetric encryption technology sex. The multi-signature technology of the blockchain can flexibly configure data access permissions. For example, the private key authorization of 3 out of 5 designated individuals must be obtained to obtain access permissions. In addition, using blockchain to store personal health data (such as electronic medical records, genetic data, etc.) is a promising application field. In addition, storing various important electronic files (videos, pictures, texts, etc.) There may be a certain application space.

In addition, the blockchain data has a time stamp, is jointly verified and recorded by consensus nodes, and cannot be tampered with or forged. These characteristics enable the blockchain to permanently and safely store various permits, registration forms, licenses, Attestation, certification and records, etc., and can easily prove the existence and authenticity of a certain data at any time.

In the field of asset management, blockchain can realize the confirmation, authorization and real-time monitoring of tangible and intangible assets. For intangible assets, based on the characteristics of time stamp technology and non-tampering, blockchain technology can be applied to intellectual property protection, domain name management, point management and other fields; Designing a unique identifier and deploying it on the blockchain can form a "digital smart asset" and realize distributed asset authorization and control based on the blockchain. For example, through the blockchain key authorization of physical assets such as houses and vehicles, the use rights of assets can be issued and recovered based on specific permissions, which is helpful for house rental or vehicle rental such as AirBed and Breakfast (Airbnb) and other business models to realize automated asset handover; by combining the asset marking and identification technology of the Internet of Things, the blockchain can also be used to achieve flexible supply chain management and product traceability and other functions.

In this embodiment, when the terminal needs to query information, the terminal first performs user login, and the login method is the same as the former, and will not be described again. Then the terminal sends the query information to the server; receives the entry information obtained by screening the unique code according to the query information; selects the entry information to download. Wherein, the query information includes identity information, storage time and so on.

In this embodiment, by sending data information to the server; receiving the unique code created by the server according to the entry information of the data information; combining the entry information and the unique code to form a data packet and sending it to the server; receiving the time when the server stamps the data packet Stamp; write the data packet containing the time stamp into the blockchain. Once the hash operation information is written into the blockchain, it is difficult to change. Once tampering occurs, even a single character change will lead to significant changes in the calculation results , in the field of intellectual property protection, hash codes combined with time stamps can provide a reliable proof of time, which can ensure the timely validity of knowledge information records.

Further, referring to FIG. 3, the present invention also provides a terminal. Based on the embodiment shown in FIG. 2 above, the terminal 10 includes: a data sending module 11, a creating module 12, a data packet forming module 13, and a time stamp receiving module 14 and write module 15. The data sending module 11 is used for sending data information to the server. The creating module 12 is connected with the sending module 11, and is used for receiving the unique code created by the server according to the entry information of the data information. The data packet forming module 13 is connected with the creation module 12, and is used to combine the entry information and the unique code to form a data packet and send it to the server. The time stamp receiving module 14 is connected with the data packet forming module 13, and is used for receiving the time stamp affixed by the server to the data packet. The writing module 15 is connected with the time stamp receiving module 14, and is used for writing the data packet containing the time stamp into the block chain, so that the timely validity of the knowledge information record can be guaranteed.

In the embodiment of the present invention, with reference to Fig. 4, the data packet forming module 13 includes: a hash code acquisition module 131 connected to the creation module 12 for performing a hash operation on the entry information to obtain the hash code; combining the module 132 with the hash code The code acquisition module 131 is connected to combine the unique code with the hash code to form a data packet and send it to the server. Once the hash operation information is written into the blockchain, it is difficult to change it. Once it is tampered with, even a single character change will lead to significant changes in the operation results. In the field of intellectual property protection, hash codes can be combined with timestamps. Provide a reliable proof of time, which can ensure the timely validity of knowledge information records. Wherein, the unique code includes at least one of identity, item category, and item summary. Of course, the unique code may also include other information, which will not be repeated here.

In the embodiment of the present invention, referring to FIG. 4 , the terminal 10 includes: a key creation module 16 and a login information sending module 17 . The key creation module 16 is configured to transmit the user identity information to the server to create a pair of keys, wherein the keys include a private key and a public key. The login information sending module 17 is connected with the key creation module and the data sending module 11, and is used for sending the login information encrypted by the private key to the server for login. Specifically, the terminal provides user identity information and other content registration, and sends it to the server through the key creation module 16 to verify the user identity information, and then makes the server create a pair of keys for the user. Among them, the public key is public on the whole network, and the private key is kept by the user himself. When the user needs to log in, the login information sending module 17 encrypts the login information with a private key and sends it to the server, so that the server can use the public key of the corresponding terminal to decrypt and authenticate the login information.

In the embodiment of the present invention, when the data sending module 11 sends data information to the server, the data information to be sent is encrypted by means of advanced encryption standard (Advanced Encryption Standard, AES), etc., and the encrypted data information is sent to the server . In the embodiment of the present invention, the data information may include text, picture, audio, video and other information content.

In the embodiment of the present invention, before the timestamp receiving module 14 receives the timestamp added by the server to the data packet, the terminal 10 first sends a timestamp request message to the server, so that the server stamps the time on the packet according to the timestamp request information stamp, and then the timestamp receiving module 14 receives the timestamp.

Continuing to refer to FIG. 4 , the terminal 10 includes: a query information sending module 18 , an entry information receiving module 19 and a download module 101 . When the terminal 10 needs to perform information query, the terminal 10 first performs user login, and the login method is the same as the former, and will not be described again. Then the query information sending module 18 is connected with the login information sending module 17, and is used to send the query information to the server; the item information receiving module 19 is connected with the query information sending module 18, and is used for receiving the information that the server carries out the screening of the unique code according to the query information. The entry information; downloading module 101 is connected with the entry information receiving module 19 for selecting entry information for downloading. Wherein, the query information includes identity information, storage time and so on.

In addition, an embodiment of the present invention also proposes a computer-readable storage medium, where a first computer program is stored on the computer-readable storage medium, and when the first computer program is executed by a processor, the following operations are implemented:

Send data information to the server;

Receive the unique code created by the server according to the entry information of the data information;

Combine the entry information and the unique code to form a data packet and send it to the server;

Receive the timestamp stamped by the server on the data packet;

Write a packet containing a timestamp to the blockchain.

Further, when the first computer program is executed by the processor, the following operations are also implemented:

Perform a hash operation on the entry information to obtain the hash code;

Combine the unique code with the hash code to form a data packet and send it to the server.

Further, when the first computer program is executed by the processor, the following operations are also implemented:

Send query information to the server;

The receiving server obtains the item information obtained by screening the unique code according to the query information;

Select entry information to download.

Referring to Fig. 5, the second embodiment of the present invention provides a blockchain-based knowledge management method, the blockchain-based knowledge management method comprising:

Step S20: receiving data information sent by the terminal.

Wherein, the data information may include text, picture, audio, video and other information content.

Before step S20, receive the user identity information sent by the terminal; create a pair of keys according to the user identity information, wherein the key includes a private key and a public key; receive the login information encrypted by the private key sent by the terminal, and apply the public key Authentication login information. In this embodiment, the terminal provides user identity information and other content registration, and the server receives the user identity information sent by the terminal, and verifies the user identity information, thereby creating a pair of keys. Among them, the public key is public on the whole network, and the private key is kept by the user himself. When the user needs to log in, the terminal uses the private key to encrypt the login information and sends it to the server, and the server uses the public key of the corresponding terminal to decrypt and authenticate the login information.

Step S21: Create a unique code for each item of information in the data information by using a preset encoding method.

Wherein, the unique code includes at least one of identity, item category, and item summary. Of course, the unique code may also include other information, which will not be repeated here. Before step S21, the received data information needs to be decrypted and reviewed.

Step S22: add a time stamp to the data packet formed by the terminal according to the combination of the entry information and the unique code.

In step S22, the server first receives the timestamp request sent by the terminal, and then adds a timestamp to the data packet according to the timestamp request.

In the embodiment of the present invention, the formation of the data packet is formed by the terminal performing a hash operation on the entry information to obtain a hash code, and then combining the unique code and the hash code. Once the hash operation information is written into the blockchain, it is difficult to change it. Once it is tampered with, even a single character change will lead to significant changes in the operation results. In the field of intellectual property protection, hash codes can be combined with timestamps. Provide a reliable proof of time, which can ensure the timely validity of knowledge information records.

Step S23: Send the time stamp to the terminal, so that the terminal writes the data packet containing the time stamp into the block chain. The completion of data storage and management based on blockchain technology in this way can ensure the timely validity of knowledge information records.

In this embodiment, when the terminal needs to query information, the terminal first performs user login, and the login method is the same as the former, and will not be described again. Then the server receives the query information sent by the terminal; screens the unique code according to the query information and obtains the item information; sends the item information to the terminal so that the terminal selects the item information for downloading. Wherein, the query information includes identity information, storage time and so on.

Further, referring to FIG. 6 , the present invention also provides a server. Based on the embodiment shown in FIG. 5 above, the server 20 includes: a data receiving module 21, a unique code creation module 22, a timestamp capping module 23 and a time Poke sending module 24. The data receiving module 21 is used for receiving data information sent by the terminal. The unique code creating module 22 is connected with the data receiving module 21, and is used for creating a unique code for each entry information in the data information by adopting a preset encoding method. The timestamp adding module 23 is connected with the unique code creation module 22, and is used for adding a timestamp to the data packet formed by the terminal according to the combination of the entry information and the unique code. The time stamp sending module 24 is connected with the time stamp adding module 23, and is used for sending the time stamp to the terminal, so that the terminal writes the data packet containing the time stamp into the block chain. The completion of data storage and management based on blockchain technology in this way can ensure the timely validity of knowledge information records.

In this embodiment, the data information may include text, picture, audio, video and other information content. The unique code includes at least one of identity, item category, and item summary. Of course, the unique code may also include other information, which will not be repeated here. Before the unique code creation module 22 creates a unique code for each item of information in the data information using a preset encoding method, it needs to decrypt and verify the received data information. The timestamp adding module 23 is to add a timestamp to the data packet in response to the timestamp request of the terminal.

In the embodiment of the present invention, the formation of the data packet is formed by the terminal performing a hash operation on the entry information to obtain a hash code, and then combining the unique code and the hash code. Once the hash operation information is written into the blockchain, it is difficult to change it. Once it is tampered with, even a single character change will lead to significant changes in the operation results. In the field of intellectual property protection, hash codes can be combined with timestamps. Provide a reliable proof of time, which can ensure the timely validity of knowledge information records.

In this embodiment, referring to FIG. 7 , the server 20 includes: an identity information receiving module 25 , a key creation module 26 and an authentication module 27 . Before the data receiving module 21 is used to receive the data information sent by the terminal, the identity information receiving module 25 is used to receive the user identity information sent by the terminal; the key creation module 26 is connected with the identity information receiving module 25 for creating A pair of keys, wherein the key includes a private key and a public key; the authentication module 27 is connected with the key creation module 26 and the data receiving module 21, and is used to receive the login information encrypted by the private key sent by the terminal, and apply the public key Authentication login information. In this embodiment, the terminal provides user identity information and other content registration, the identity information receiving module 25 receives the user identity information sent by the terminal, the authentication module 27 verifies the user identity information, and the key creation module 26 is required to create a pair of keys. Among them, the public key is public on the whole network, and the private key is kept by the user himself. When the user needs to log in, the terminal uses the private key to encrypt the login information and sends it to the server, and the authentication module 27 in the server 20 uses the public key of the corresponding terminal to decrypt and authenticate the login information.

Continuing to refer to FIG. 7 , the server 20 includes: a query information receiving module 28 , a screening module 29 and an item information sending module 201 . When the terminal needs to query information, the terminal first performs user login, and the login method is the same as the former, and will not be repeated here. Then the query information receiving module 28 is connected with the authentication module 27 for receiving the query information sent by the terminal; the screening module 29 is used for querying the information receiving module 28 to connect, for carrying out the screening of the unique code and the entry information obtained according to the query information; The information sending module 201 is connected with the screening module 29, and is used for sending the item information to the terminal so that the terminal selects the item information for downloading. Wherein, the query information includes identity information, storage time and so on.

As shown in FIG. 8 , FIG. 8 is a schematic structural diagram of a server in a hardware operating environment involved in the solution of the embodiment of the present invention.

The embodiment server of the present invention can be PC, also can be smart mobile phone, panel computer, e-book reader, MP3 (Moving Picture Experts Group Audio Layer III, moving picture experts compress standard audio level 3) player, MP4 (Moving Picture Experts Group Audio Layer III) player, MP4 (Moving Picture Experts Group Audio Layer III) Group Audio Layer IV, dynamic image expert compression standard audio layer 3) Players, portable computers and other mobile terminal devices with display functions.

As shown in FIG. 8 , the server may include: a second processor 2001 , such as a CPU, a second network interface 2004 , a second user interface 2003 , a second memory 2005 , and a second communication bus 2002 . Wherein, the second communication bus 2002 is used to realize connection and communication between these components. The second user interface 2003 may include a display screen (Display) and an input unit such as a keyboard (Keyboard). Optionally, the second user interface 2003 may also include a standard wired interface and a wireless interface. The second network interface 2004 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface). The second memory 2005 can be a high-speed RAM memory, or a stable memory (non-volatile memory), such as a disk memory. Optionally, the second memory 2005 may also be a storage device independent of the aforementioned second processor 2001 .

Optionally, the server may also include a camera, an RF (Radio Frequency, radio frequency) circuit, a sensor, an audio circuit, a WiFi module, and the like. Among them, sensors such as light sensors, motion sensors and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display screen according to the brightness of the ambient light, and the proximity sensor may turn off the display screen and/or backlight. As a kind of motion sensor, the gravitational acceleration sensor can detect the magnitude of acceleration in various directions (generally three axes), and can detect the magnitude and direction of gravity when it is stationary, and can be used for applications that recognize the posture of mobile terminals (such as horizontal and vertical screen switching, Related games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tap), etc.; of course, the server can also be equipped with other sensors such as gyroscope, barometer, hygrometer, thermometer, infrared sensor, etc. Let me repeat.

Those skilled in the art can understand that the server structure shown in FIG. 8 does not limit the terminal, and may include more or less components than those shown in the figure, or combine some components, or arrange different components.

As shown in FIG. 8 , the second memory 2005 as a computer storage medium may include a second operating system, a second network communication module, a second user interface module and a second computer program.

In the terminal shown in FIG. 8, the second network interface 2004 is mainly used to connect to the terminal and perform data communication with the terminal; the second user interface 2003 is mainly used to connect to the client (client) and perform data communication with the client; The second processor 2001 can be used to call the second computer program stored in the second memory 2005, and perform the following operations:

Receive data information sent by the terminal;

Create a unique code for each item of information in the data information using a preset encoding method;

Time stamp the data packet formed by the terminal according to the combination of entry information and unique code;

Send the timestamp to the endpoint, so that the endpoint writes a packet containing the timestamp to the blockchain.

Further, the second processor 2001 may call the second computer program stored in the second memory 2005, and also perform the following operations:

Receive query information sent by the terminal;

The entry information obtained by filtering the unique code according to the query information;

The item information is sent to the terminal so that the terminal selects the item information for downloading.

In addition, an embodiment of the present invention also proposes a computer-readable storage medium, where a second computer program is stored on the computer-readable storage medium, and when the second computer program is executed by a processor, the following operations are implemented:

Receive data information sent by the terminal;

Create a unique code for each item of information in the data information using a preset encoding method;

Time stamp the data packet formed by the terminal according to the combination of entry information and unique code;

Send the timestamp to the endpoint, so that the endpoint writes a packet containing the timestamp to the blockchain.

Further, when the second computer program is executed by the processor, the following operations are also implemented:

Receive query information sent by the terminal;

The entry information obtained by filtering the unique code according to the query information;

The item information is sent to the terminal so that the terminal selects the item information for downloading.

It should be noted that, as used herein, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or system comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or system. Without further limitations, an element defined by the phrase "comprising a..." does not preclude the presence of additional identical elements in the process, method, article or system comprising that element.

The serial numbers of the above embodiments of the present invention are for description only, and do not represent the advantages and disadvantages of the embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the technical solution of the present invention can be embodied in the form of a software product in essence or in other words, the part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM) as described above. , magnetic disk, optical disk), including several instructions to make a terminal device (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) execute the method described in each embodiment of the present invention.

The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process conversion made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technical fields , are all included in the scope of patent protection of the present invention in the same way.

Claims (10)

1. A kind of 1. knowledge management method based on block chain, it is characterised in that the knowledge management method bag based on block chain Include following steps：

   Data message is sent to the server；

   Receive unique code that the server creates according to the items for information of the data message；

   Packet is combined to form according to the items for information and unique code and sent to the server；

   Receive the timestamp that the server is packet capping；

   The packet comprising the timestamp is write into block chain.
2. 2. the knowledge management method as claimed in claim 1 based on block chain, it is characterised in that described to be believed according to the entry The step of breath and unique code combine to form packet and sent to the server, including：

   Hash operation is carried out to the items for information and obtains Hash codes；

   Unique code is combined to form into the packet with the Hash codes and sent to the server.
3. 3. the knowledge management method as claimed in claim 1 based on block chain, it is characterised in that the knowing based on block chain Knowing management method also includes：

   Query Information is sent to the server；

   Receive the items for information that the server carries out the screening of unique code according to the Query Information and obtained；

   The items for information is selected to be downloaded.
4. 4. a kind of terminal, it is characterised in that the terminal includes：

   Data transmission blocks, for sending data message to the server；

   Creation module, it is connected with the sending module, for receiving items for information of the server according to the data message The unique code created；

   Packet forms module, is connected with the creation module, for being combined according to the items for information and unique code Form packet and send to the server；

   Timestamp receiving module, form module with the packet and be connected, add for receiving the server for the packet The timestamp of lid；

   Writing module, it is connected with the timestamp receiving module, for by the packet write area comprising the timestamp Block chain.
5. 5. terminal as claimed in claim 4, it is characterised in that the packet, which forms module, to be included：

   Hash codes acquisition module, it is connected with the creation module, for being carried out to the items for information described in Hash operation acquisition Hash codes；

   Binding modules, it is connected with the Hash codes acquisition module, for unique code to be combined to form into institute with the Hash codes State packet and send to the server.
6. 6. a kind of terminal, it is characterised in that the terminal includes：First memory, first processor and it is stored in described first On memory and the first computer program that can be run on the first processor, first computer program is by described The step of knowledge management method as claimed any one in claims 1 to 3 based on block chain is realized during one computing device.
7. A kind of 7. knowledge management method based on block chain, it is characterised in that the knowledge management method bag based on block chain Include following steps：

   The data message that receiving terminal is sent；

   Pre-arranged code mode is used to create unique code for each items for information in the data message；

   The packet combined to form for the terminal according to the items for information and unique code is capped timestamp；

   The timestamp is sent to the terminal, so that the terminal is by the packet write area comprising the timestamp Block chain.
8. 8. the knowledge management method as claimed in claim 7 based on block chain, it is characterised in that the knowing based on block chain Knowing management method also includes：

   Receive the Query Information that the terminal is sent；

   The items for information for carrying out the screening of unique code according to the Query Information and obtaining；

   The items for information is sent to the terminal so that the terminal selects the items for information to be downloaded.
9. 9. a kind of server, it is characterised in that the server includes：

   Data reception module, the data message sent for receiving terminal；

   Unique code creation module, is connected with the data reception module, for using pre-arranged code mode as the data message In each items for information create unique code；

   Timestamp is capped module, is connected with unique code creation module, for for the terminal according to the items for information with And the packet capping timestamp that unique code combines to form；

   Timestamp sending module, it is connected with timestamp capping module, for the timestamp to be sent to the terminal, with Make the terminal that the packet comprising the timestamp is write into block chain.
10. 10. a kind of server, it is characterised in that the server includes：Second memory, second processor and it is stored in described On second memory and the second computer program that can be run in the second processor, the second computer program is by institute State when second processor performs the knowledge management method based on block chain of the realization as any one of claim 7 to 8 Step.