CN111581626B

CN111581626B - Stamp stamping machine, stamp management system and stamp block chain authorization method

Info

Publication number: CN111581626B
Application number: CN202010299056.7A
Authority: CN
Inventors: 姜立军; 李国清; 李哲林
Original assignee: South China University of Technology SCUT
Current assignee: South China University of Technology SCUT
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2023-04-21
Anticipated expiration: 2040-04-16
Also published as: CN111581626A

Abstract

The invention relates to a stamp stamping machine, which comprises a communication module, a stamping module and a stamping module, wherein the communication module is used for receiving coding information and specific stamp patterns sent by application terminal equipment when stamp application passes, the specific stamp patterns correspond to stamping application, and the coding information is randomly generated when the stamp application passes; the key storage module is used for receiving and decrypting the coded information and the specific seal pattern sent by the communication module; and the stamp generator is used for receiving the coding information and the specific stamp pattern and generating a stamp with the coding information and the specific stamp pattern. Anyone can open the camera to scan the coding information by using the terminal equipment provided with matched software or plug-in, retrieve and verify the authenticity of the specific seal pattern and the key data of the corresponding seal application authorization from the blockchain, and can realize the remote seal application and authorization work of a plurality of different seals by only one stamp seal machine. The invention also relates to a seal management system and a seal blockchain authorization method.

Description

Stamp stamping machine, stamp management system and stamp block chain authorization method

Technical Field

The invention relates to the technical field of seals, in particular to a stamp seal machine, a seal management system and a seal block chain authorization method.

Background

Along with the development of internet technology, traditional seals gradually develop to the direction of intelligence and internet of things to realize remote authorization and supervision to the seals. Regardless of the traditional common seal or the current remote intelligent seal, convenience and safety of seal use are important and difficult.

The prior art discloses an electronic seal based on a blockchain, which generates an intelligent contract comprising an electronic seal key according to contract information, writes the intelligent contract into the blockchain, then receives an electronic seal signing request sent by an application terminal, performs consensus verification on the electronic seal signing request, acquires a target electronic seal key after the consensus verification is passed, and executes the intelligent contract when the target electronic seal key is consistent with the electronic seal key in the intelligent contract to obtain the electronic contract of the signed electronic seal.

Although the electronic seal performs consensus verification on the signing request of the electronic seal through the blockchain technology, the use safety of the seal is improved, but the electronic seal still has the following problems:

1. The lack of effective supervision means and the use records cannot be traced.

2. For the stamped seal, people cannot conveniently and reliably verify the authenticity of the seal.

3. And simultaneously, the economic cost and the management cost for managing a plurality of seals are higher.

Disclosure of Invention

Aiming at the technical problems existing in the prior art, one of the purposes of the invention is as follows: the utility model provides a die stamping machine, every seal that is stamped through die stamping machine all has coding information and specific seal pattern, through scanning this coding information, people can verify the true and false of its seal or trace back its use record conveniently and reliably, only need a die stamping machine just can realize the long-range application of stamping and the work of authorizing of many different seals, reduced economic cost and management cost, can satisfy the security and the convenience requirement that the seal used simultaneously.

Aiming at the technical problems in the prior art, the second purpose of the invention is as follows: the seal management system is provided, remote seal using authorization can be realized through the system, each seal stamped through the seal stamping machine is provided with coding information and specific seal patterns, people can conveniently and reliably verify the authenticity of the seal or trace back the use record of the seal through scanning the coding information, remote seal using application and authorization work of a plurality of different seals can be realized, economic cost and management cost are reduced, and the use safety and convenience requirements of the seal can be simultaneously met.

Aiming at the technical problems in the prior art, the third purpose of the invention is as follows: the method can realize remote seal application and authorization, can realize remote seal application and authorization work of a plurality of different seals, has traceability in each seal, and can simultaneously meet the requirements of seal use safety and convenience.

In order to achieve the above purpose, the invention adopts the following technical scheme:

a stamp stamping machine comprises

The communication module is used for receiving the coding information and the specific seal pattern sent by the application terminal equipment when the seal application passes, wherein the specific seal pattern corresponds to the seal application, and the coding information is randomly generated when the seal application passes;

the key storage module is used for receiving and decrypting the coded information and the specific seal pattern sent by the communication module;

the central processing unit module is respectively connected with the communication module and the key storage module and is used for processing data between the communication module and the key storage module;

and the stamp generator is connected with the central processing unit module and used for receiving the coding information and the specific stamp pattern and generating the stamp with the coding information and the specific stamp pattern.

Further, the die generator comprises a thermosensitive material film, a micro heating body positioned above the thermosensitive material film and a driving circuit for controlling the heating of the micro heating body, and the driving circuit is connected with the central processing unit module.

Further, the encoded information is a one-dimensional code or a two-dimensional code.

Further, one-dimensional codes are arranged around a specific seal pattern.

Further, one side of the die generator is provided with a positioning module, a pressing detection module and a camera module which are respectively connected with the central processing unit module, wherein,

the positioning module is used for detecting the position information of the stamping machine in real time;

the pressing detection module is used for detecting whether the pressing stamping action is executed or not and recording the execution times;

and the camera module is connected with the communication module and used for scanning and photographing the stamped paper document and recording the stamping witness video in the stamping process.

The seal management system comprises a distributed blockchain server based on intelligent contracts, application terminal equipment, authorization terminal equipment and a seal machine; wherein, the liquid crystal display device comprises a liquid crystal display device,

the authorized terminal equipment is used for receiving the chapter application sent by the application terminal equipment and initially checking whether the chapter application condition is met,

if the primary audit does not pass, sending the primary audit refusal information to the application terminal equipment through the distributed blockchain server;

If the primary audit passes, sending the information of the primary audit passing to the application terminal equipment and the intelligent contract through the distributed block chain server;

the intelligent contract is used for storing a plurality of seal patterns, randomly generating coding information and specific seal patterns after receiving the information of the initial examination, and sending the coding information and the specific seal patterns to the application terminal equipment, wherein the specific seal patterns correspond to the application of the seal, and the specific seal patterns are obtained by searching in the internal storage of the intelligent contract through the intelligent contract;

the application terminal equipment is used for sending a seal application to the authorized terminal equipment through the distributed block chain server, and sending the received coded information and the specific seal pattern to the seal machine after receiving the information of the initial examination;

the stamp seal machine is used for receiving the coding information and the specific stamp pattern sent by the application terminal equipment and generating the stamp with the coding information and the specific stamp pattern.

Further, the stamping device further comprises a cloud server, wherein the cloud server is used for receiving and storing the stamping witness video uploaded by the application terminal device, and sending a download link of the stamping witness video to the authorization terminal device, and the stamping witness video is a stamping process recorded by the stamping machine.

The seal block chain authorization method adopts a seal management system and comprises the following steps:

Receiving a plurality of seal patterns uploaded by the authorized terminal equipment, and storing the seal patterns in an intelligent contract;

sending a seal application submitted by the application terminal equipment to the authorization terminal equipment to initially check whether the seal authorization condition is met;

if the primary audit passes, receiving primary audit passing information sent by the authorization terminal equipment, and respectively sending the primary audit passing information to the application terminal equipment and the intelligent contract, so that the intelligent contract randomly generates coding information and specific seal patterns according to the application of the seal and sends the coding information and the specific seal patterns to the seal stamping machine through the application terminal equipment, and the seal stamping machine can generate a seal with the coding information and the specific seal patterns;

the specific seal pattern corresponds to the application of the seal and is obtained by searching the intelligent contract in the internal storage of the intelligent contract.

Further, the method comprises the following steps after the primary examination is passed,

receiving the stamping witness information and sending the stamping witness information to the authorization terminal equipment so that the authorization terminal equipment performs automatic hash check;

the stamping witness information comprises stamping position information, time stamp information and a first hash value obtained by performing hash operation on stamping witness video by the stamping machine;

recording the stamping process of the stamping witness video by a stamping machine and uploading the stamping witness video to a cloud server through application terminal equipment;

The automatic hash check is that the authorized terminal equipment downloads the seal witness video from the cloud server and carries out hash operation to obtain a second hash value, and then compares the second hash value with the first hash value to judge whether the second hash value and the first hash value are consistent,

if the comparison results are inconsistent, sending terminal trial interrupt information to the application terminal equipment;

and if the comparison results are consistent, executing a final result processing step.

Further, the final result processing step includes the steps of,

when the seal witness video is judged to be unreliable, receiving the information of the final review rejection sent by the authorized terminal equipment and sending the information to the application terminal equipment;

when the seal witness video is judged to be credible, receiving the information of the passing of the final examination sent by the authorized terminal equipment and sending the information to the intelligent contract, so that the intelligent contract searches the corresponding final examination transfer information according to the initial examination transfer information, and when the searching fails, the initial examination transfer information is deleted or when the searching succeeds, the searching link relation among the initial examination transfer information, the final examination transfer information, the corresponding coding information and the specific seal pattern is stored; the initial review transfer information comprises coding information, specific seal patterns, block chain index values of seal application and block chain index values of information passing initial review, and is generated after the initial review passes by the intelligent contract; the final-review transfer information comprises a blockchain index value of the seal witness video and a blockchain index value of the information passed by the final review, and is generated by the intelligent contract after the final review is passed;

Receiving and storing a search link relation sent by the intelligent contract, receiving a evidence-seeking request generated by scanning the coding information, sending the evidence-seeking request to the intelligent contract to search the search link relation corresponding to the evidence-seeking request, and if the search fails, feeding back seal authorization failure or seal patterns as counterfeits; if the search is successful, the seal authorization is fed back and the seal pattern is true.

In general, the invention has the following advantages:

when the stamp application passes, the stamp stamping machine can generate a stamp pattern with coding information and specific stamp patterns, and each coding information records the authorization information of the specific stamp at the specific moment and has uniqueness and dynamic property because the coding information is randomly generated when the stamp application passes. Any person who has a requirement for asking for evidence of the authenticity of the seal can open the camera to scan the coding information by using the terminal equipment provided with the software or plug-in matched with the stamp seal machine, the authenticity of the coding information and the seal pattern and the corresponding key data authorized by the application of the seal can be searched and verified, meanwhile, because the specific seal pattern corresponds to the application of the seal, different specific seal patterns can be generated according to different applications of the seal, the remote application of the seal and the authorized work of a plurality of different seals can be realized by only one stamp seal machine, the economic cost and the management cost are reduced, and the requirements of the safety and convenience of the use of the seal can be met simultaneously.

Drawings

Fig. 1 is a schematic structural view of a stamp stamping machine in an embodiment of the present invention.

Fig. 2 is a schematic diagram of a structure of a stamp generator in an embodiment of the present invention.

FIG. 3 is a schematic diagram of a blockchain authorization method of a stamp stamping machine in accordance with an embodiment of the present invention.

Fig. 4 is a schematic diagram of information interaction of an intelligent contract and a third party prover in an embodiment of the present invention.

Reference numerals illustrate:

100-seal shell, 200-stamp generator, 300-camera module, 301-camera, 302-photosensitive module, 303-auxiliary lighting module, 400-intelligent control circuit, 401-central processing unit module, 402-communication module, 403-positioning module, 404-storage module, 405-key storage module, 406-power supply module, 407-press detection module, 2011-generator shell, 2012-thermosensitive material film, 2013-micro heating body and 2014-driving circuit.

Detailed Description

The present invention will be described in further detail below.

As shown in fig. 1-4, the stamp stamping machine comprises a communication module 402, which is used for receiving coding information and specific stamp patterns sent by application terminal equipment when stamp application passes, wherein the specific stamp patterns correspond to stamp application, and the coding information is randomly generated when stamp application passes; the key storage module 405 is configured to receive and decrypt the encoded information and the specific seal pattern sent by the communication module 402; the central processing unit module 401 is respectively connected with the communication module 402 and the key storage module 405 and is used for processing data between the communication module 402 and the key storage module 405; the stamp generator 200 is connected to the central processing unit module 401, and is used for receiving the stamp pattern and the coding information and generating a stamp containing the stamp pattern and the coding information.

Specifically, the stamp stamping machine includes a stamp housing 100, a stamp generator 200, and an intelligent control circuit 400.

The stamp generator 200 is provided at a bottom position of the stamp housing 100 for generating a stamp with encoded information and a specific stamp pattern, thereby enabling to cover the encoded information and the specific stamp pattern. The encoded information can be read by an external device with a scanning means.

The intelligent control circuit 400 is accommodated inside the stamp housing 100 and is connected with the stamp generator 200; the intelligent control circuit 400 comprises a central processing unit module 401, a communication module 402 connected with the central processing unit module 401, a key storage module 405 and a power supply module 406.

The central processing unit module 401 is responsible for data processing between the communication module 402 and the key storage module 405. In this embodiment, the central processor module 401 employs raspberry group Zero W sold by micro snow electronics.

The communication module 402 is configured to perform pairing connection with other terminal devices through a wireless network, a mobile network, bluetooth, a wired connection, or a blockchain network, and implement data communication with other terminal devices and a distributed blockchain server, and is configured to receive coded information and a specific seal pattern sent by a terminal device or a blockchain intelligent contract that is paired with a seal machine. In this embodiment, the communication module 402 is a raspberry group SIM7600CE 4G module sold by micro snow electronics.

The key storage module 405 is configured to store a key, a digital certificate and a program necessary for information decryption and encryption, so that the central processing unit module 401 can retrieve the key, the digital certificate and the program to decrypt the encoded information and the specific seal pattern received by the communication module 402, obtain the encoded information and the specific seal pattern, and transmit the encoded information and the specific seal pattern to the stamp generator 200. In this embodiment, the key storage module 405 uses the BLKE SD card 512M and is set to a "readable and non-writable" state.

A power supply module 406 for providing the required power to the various modules in the stamp generator 200 and the intelligent control circuit 400. In this embodiment, the power module 406 is a raspberry pi lithium battery expansion board sold by micro-snow electronics.

The smart contract is an application running on a blockchain platform built by a distributed blockchain server. And the authorization terminal equipment uploads the seal patterns to the intelligent contract. After receiving the application for the seal sent by the application terminal equipment, the authorized terminal equipment initially checks whether the application for the seal meets the condition for the seal or not, and if the application for the seal does not pass, the distributed blockchain server sends the information of the rejection of the initial check to the application terminal equipment; if the primary audit passes, the primary audit passing information is respectively sent to the application terminal equipment and the intelligent contract through the distributed blockchain server, the intelligent contract searches for the specific seal pattern corresponding to the current seal application and is internally stored, coding information is randomly generated, and the coding information and the specific seal pattern are sent to the application terminal equipment through the distributed blockchain server; the communication module 402 of the stamp stamping machine receives the coding information and the specific stamp pattern sent by the application terminal equipment, and the key storage module 405 receives and decrypts the coding information and the specific stamp pattern sent by the communication module 402; the key storage module 405 and the stamp generator 200 are connected through the central processor module 401, and the stamp generator 200 generates a stamp with the encoded information and the specific stamp pattern according to the received encoded information and the specific stamp pattern.

When the stamp generator 200 does not receive the code information and the specific stamp pattern after the application for stamping passes, the stamp generator 200 is in an initial state, and the stamp stamping machine can not generate any stamp pattern or code information; upon receiving the encoded information and the specific stamp pattern, the bottom surface of the stamp generator 200 generates a stamp with the encoded information and the specific stamp pattern, and pressing the stamp may reveal the authorized encoded information and the specific stamp pattern.

Because the coding information is generated randomly and immediately when the seal is authorized after the application of the seal passes, each coding information records the authorization information of the specific seal at the specific moment, namely the unique and dynamic property is achieved. The uniqueness refers to the fact that the coded information of different seals is different, and the dynamic property refers to the fact that the coded information generated by authorization of the same seal at different moments is also different. The code information is readable information, any person with a demand for asking for evidence of authenticity of the seal can open a camera to scan the code information by using terminal equipment provided with software or plug-in components matched with the stamp seal machine, and the code information, the authenticity of the seal pattern and the corresponding key data for applying authorization can be searched and verified from a block chain, so that the requirements on safety and convenience of seal use can be met simultaneously.

The intelligent contract can store a plurality of seal patterns, because the specific seal patterns correspond to the seal application, the code information is randomly generated when the seal application passes, and the seal machine can generate different code information and specific seal patterns according to different seal application of application terminal equipment, so that remote seal application and authorization work of a plurality of different seals can be realized. The requirement of managing a plurality of stamps by a person or a unit can be met by only one stamp stamping machine, remote stamping application and authorized work of the plurality of stamps are realized, and the economic cost and the management cost are greatly reduced.

The stamp generator 200 includes a heat sensitive material film 2012, a micro-heating body 2013 located above the heat sensitive material film 2012, and a driving circuit 2014 controlling heating of the micro-heating body 2013, the driving circuit 2014 being connected to the central processor module 401.

Specifically, the stamp generator 200 includes a generator housing 2011, a thermosensitive material film 2012 disposed at the bottom of the generator housing 2011, micro-heaters 2013 accommodated inside the generator housing 2011 and located directly above the thermosensitive material film 2012 and closely arranged in a lattice manner, and a driving circuit 2014 disposed inside the generator housing 2011 and connected to the micro-heaters 2013 arranged in a lattice manner.

The micro-heaters 2013 are disposed right above the thermosensitive material film 2012, uniformly, closely and orderly arranged on a plane in a lattice manner, and the micro-heaters 2013 are uniformly controlled by the driving circuit 2014 and used for heating and stimulating the thermosensitive material film 2012.

In this embodiment, the micro-heating element 2013 is a nano-titanium electric heating element or a PTC micro-constant temperature electric heating element.

Compared with the electronic seal in the prior art, the entity stamp generated by the stamp generator 200 can be directly stamped on the paper document, and is more in accordance with the traditional use mode of the stamp. The heat-sensitive material film 2012, the local part material is heated by the micro-heating body 2013 and expands and bulges due to the heat expansion and cold contraction principle, and the heat conductivity of the heat-sensitive material film 2012 is poor, when the local part material is heated and bulges, the surrounding material is not expanded and bulges in a short time, so that an authorized stamp with coded information and a specific stamp pattern is generated; after the stamping is completed, the micro-heater 2013 stops heating, and the part of the thermosensitive material film 2012 is turned into a flat state from swelling. Therefore, the thermosensitive material film 2012 can generate any coding information and specific seal patterns, and can realize management of multiple seals or remote seal application and authorization work of the multiple seals by only one stamp seal machine, thereby greatly reducing the economic cost and the management cost.

In this embodiment, the heat sensitive material film 2012 is a polyurethane aerogel film. Polyurethane aerogels have a very strong elasticity, which means that they can be bent or crushed in any direction and still return to their original shape. The university of missouri chemistry, the project manager Nicholas Leventis doctor, indicates that such super elastic aerogels are different from rubber in that they can return to a specific shape on command, i.e. exhibit strong shape memory properties, meaning that they can permanently retain their deformed shape after deformation and cooling.

The driving circuit 2014 is used for connecting and controlling the micro-heating bodies 2013, and by receiving the coding information and the specific seal pattern sent by the central processing unit module 401, the working state of each unit in the micro-heating bodies 2013 arranged in a lattice is systematically controlled in real time. The number of the micro-heaters 2013 is related to the definition of the stamp size and the stamp pattern, the higher the dot matrix density of the micro-heaters 2013 is, the higher the stamp precision generated by the stamp generator 200 is, namely the clearer the stamped stamp pattern is, the dot matrix density of the micro-heaters 2013 on the stamp plane is between 1 per square centimeter [ 1/1*1) =1 (per square centimeter) ] and 14400 per square centimeter [ (120×120)/(1*1) =14400 (per square centimeter) ] with the maximum dot matrix density 14400 pieces per square centimeter being approximately equal to the common printing precision 300dpi of the common printer; typically, the stamp size is a circle with a diameter of 60 mm, the lattice density of the micro-heaters 2013 on the stamp plane is 1600 per square centimeter [ (40 x 40)/(1*1) =1600 (per square centimeter) ], the number of micro-heaters 2013 required for each english or digital character is 7*9 lattice, and the number of micro-heaters 2013 required for each kanji character is 12 x 16 lattice.

The coding information is one-dimensional code or two-dimensional code.

The one-dimensional code or the two-dimensional code comprises coding information generated immediately when the seal is authorized, each one-dimensional code or the two-dimensional code only points to the authorization information of a specific seal at a specific moment, namely the one-dimensional code or the two-dimensional code of different seals is different in coding information, and the uniqueness is different in coding information of the one-dimensional code or the two-dimensional code generated by authorizing at different moments of the same seal.

Since the one-dimensional code or the two-dimensional code can be read by a specific device. Anyone who has a requirement of asking for evidence for the authenticity of the seal can open the camera by using the terminal equipment provided with the software or the plug-in matched with the stamp-seal machine to scan the one-dimensional code or the two-dimensional code attached to the seal, and retrieve and verify the authenticity of the one-dimensional code or the two-dimensional code and the seal pattern and the corresponding key data for applying for authorization from the block chain, so that the requirements of safety and convenience for using the seal can be simultaneously met.

Preferably, when the encoded information is a one-dimensional code, the one-dimensional code is arranged around the stamp pattern.

The one-dimensional code is a mark consisting of a group of bars, spaces and corresponding characters which are regularly arranged, and is usually in a strip shape, so that the one-dimensional code is arranged around the seal pattern, for example, when the seal pattern is circular, the one-dimensional code is externally looped on the seal pattern to form an arc-shaped structure, the integral layout of the seal pattern is not affected, the integral length of the one-dimensional code is reduced, the integral size of the seal is reduced, and the integral layout is convenient.

The stamp of the one-dimensional code outer ring stamp pattern generated by the stamp generator 200 comprises a stamp of a traditional stamp pattern and a stamp of one-dimensional code outer ring which is matched with the outline of the traditional stamp pattern. The stamp of the one-dimensional code outer ring stamp pattern is a raised stamp or a planar stamp. When the stamp generator 200 does not receive the authorized one-dimensional code outer ring stamp pattern, the stamp generator 200 is in an initial state, and any stamp pattern and one-dimensional code cannot appear when stamping is pressed; after receiving the one-dimensional code outer ring seal pattern, the bottom surface of the stamp generator 200 generates a stamp with the one-dimensional code outer ring seal pattern, and the one-dimensional code outer ring seal pattern authorized can appear by pressing the stamp.

A positioning module 403, a pressing detection module 407 and a camera module 300 which are respectively connected with the central processing unit module 401 are arranged on one side of the stamp generator 200, wherein the positioning module 403 is used for detecting the position information of the stamp stamping machine in real time; a pressing detection module 407, configured to detect whether a pressing stamping action is performed or not and record the number of times of the execution; the camera module 300 is connected with the communication module 402, and is used for scanning and photographing the stamped paper document and recording the stamping witness video in the stamping process.

Specifically, the intelligent control circuit 400 further includes a storage module 404, a pressing detection module 407, and a positioning module 403 connected to the central processor module 401.

The storage module 404 is used for storing basic program codes and drivers of the stamp stamping machine, temporarily storing the stamping witness video recorded by the image capturing module 300, and temporarily storing the cache and temporary files generated by the central processing unit 401.

The pressing detection module 407 is configured to detect whether the pressing and stamping action is performed and record the number of times of the execution.

The positioning module 403 is configured to detect a position of the stamp stamping machine in real time, and record stamping position information when performing stamping operation.

In this embodiment, the press detection module 407 employs a Risym HX711 load cell module. The positioning module 403 employs a micro-snow electronic GNSS positioning module.

By recording the stamping times and the position information during stamping, the information can be sent to the authorized terminal equipment through the communication module, so that an authorized person can monitor the stamping situation remotely. Through recording the witness video of stamping, and transmit to communication module 402 by central processing unit module 401, can upload the witness video of stamping to the high in the clouds server, and send the download link of the witness video of stamping to authorization terminal equipment, help authorization terminal equipment to carry out the download verification.

The camera module 300 may be accommodated in the seal housing 100, or may protrude outside the seal housing 100, and includes a camera 301, a photosensitive module 302, and an auxiliary lighting module 303.

The camera 301 is used for scanning and photographing a paper document to be stamped, recording a stamping witness video of an area including the paper document at the front lower part of the stamp stamping machine in real time in the stamping process, and recording the stamping process.

The photosensitive module 302 is used for detecting the brightness of the area including the paper document at the front lower part of the stamp stamping machine and feeding back the brightness condition to the auxiliary lighting module 303 in real time.

The auxiliary lighting module 303 is configured to emit moderate light when the feedback brightness of the photosensitive module 302 is too low, so as to ensure that the camera 301 can take a clear picture and record a clear seal witness video.

In particular, a distributed blockchain server is used for constructing a blockchain platform for information transfer and value transaction for applicant, authorizers and third party witness, and for providing necessary hardware facilities for the operation and data transmission of intelligent contracts.

The application terminal equipment can be any mobile phone, computer or other intelligent equipment provided with the corresponding software or plug-in, and is used for acquiring registration information of the applicant, carrying out data communication with the distributed blockchain server, carrying out data communication with the cloud server, and carrying out data communication with the stamp stamping machine in a pairing connection mode.

The authorization terminal equipment can be any mobile phone, computer or other intelligent equipment provided with the software or the plug-in corresponding to the invention, and is used for acquiring registration information of an authorizer, carrying out data communication with the distributed blockchain server and/or the cloud server, and uploading seal patterns of the authorizer to the blockchain platform.

The stamp seal machine is used for being connected with the application terminal equipment in a pairing mode and carrying out data communication, carrying out data communication with the distributed block chain server and/or the cloud server, generating a stamp with coding information and specific stamp patterns, and further executing stamping and recording the stamping process.

The working process of the seal management system is as follows:

the application terminal equipment sends a seal application to the authorization terminal equipment through the distributed block chain server, the authorization terminal equipment receives whether the initial examination meets the seal application condition after receiving the seal application, and if the initial examination does not pass, the authorization terminal equipment sends initial examination refusal information to the application terminal equipment through the distributed block chain server; if the primary audit passes, the authorized terminal equipment sends the primary audit passing information to the application terminal equipment and the intelligent contract through the distributed block chain server, the intelligent contract searches the internal storage to obtain a specific seal pattern corresponding to the current seal application, randomly generates readable coding information, and sends the coding information and the specific seal pattern to the application terminal equipment through the distributed block chain server; the application terminal equipment sends the received coding information and the specific seal pattern to the stamp seal machine, and the stamp seal machine generates the stamp with the coding information and the specific seal pattern.

Through this seal management system can realize long-range application of using seal and authorizing, every seal that is stamped through the die seal machine all has code information and specific seal pattern, through this code information of scanning, people can verify the true and false of its seal conveniently and reliably. Meanwhile, because the intelligent contract can store a plurality of seal patterns, the stamp seal machine can correspondingly generate different coding information and specific seal patterns according to different seal application of application terminal equipment, remote seal application and authorized work of a plurality of different seals can be realized, economic cost and management cost are reduced, and the requirements on safety and convenience of seal use can be met simultaneously.

The seal management system further comprises a cloud server, wherein the cloud server receives and stores the seal witness video recorded by the seal machine and sends a download link of the seal witness video to the authorization terminal device.

The cloud server is used for realizing data communication between the application terminal equipment and the authorization terminal equipment based on the Internet, receiving and storing the seal witness video sent by the application terminal equipment through the Internet, and sending a download link of the seal witness video to the authorization terminal equipment through the Internet. The authorization terminal device can download the stamping witness video from the cloud server so as to verify the authenticity of the stamping process through the stamping witness video.

In this embodiment, the smart contracts include a first smart contract, a second smart contract, and a third smart contract.

The first intelligent contract is used for storing seal patterns, generating coded information and specific seal patterns, processing and transmitting information from the authorized terminal equipment to the application terminal equipment, and transmitting information with the third intelligent contract.

Specifically, the first intelligent contract stores a plurality of seal patterns, when the application of the seal passes, the specific seal patterns corresponding to the application of the seal are obtained by searching the internal storage of the first intelligent contract, coding information and the specific seal patterns are randomly generated, and initial examination transfer information is sent to the third intelligent contract through the distributed blockchain server;

the primary audit transfer information comprises coding information, specific seal patterns, block chain index values of seal application and block chain index values of information passed by the primary audit.

And the second intelligent contract is used for receiving information of the authorized terminal equipment and realizing information transmission with the third intelligent contract.

Specifically, the second smart contract receives the information of passing the final examination sent by the authorized terminal device, and sends the final examination transfer information to the third smart contract.

And the final-review transfer information comprises a blockchain index value of the witness video and a blockchain index value of the information passed by the final review.

The third intelligent contract is used for realizing information transmission between the first intelligent contract and the second intelligent contract, constructing and storing the retrieval link relation between the coding information and the specific seal pattern and the application authorization related information on the corresponding blockchain platform, receiving a request of a third party witness to search the stored retrieval link relation, and feeding back a search result to the third party witness.

Specifically, the third smart contract receives the initial review transfer information sent by the first smart contract, marks the initial review transfer information as a hovering state, stores the initial review transfer information temporarily, and searches the distributed blockchain server for whether the second smart contract issues final review transfer information corresponding to the initial review transfer information or not in the hovering waiting time.

The primary audit transfer information comprises coding information, specific seal patterns, block chain index values of seal application and block chain index values of information passing through the primary audit.

If the search is unsuccessful within the hover waiting time, deleting the primary audit transfer information by the third intelligent contract;

if the search is successful in the hovering waiting time, the third intelligent contract builds and stores the search link relation among the initial examination transfer information, the final examination transfer information, the corresponding coding information and the specific seal pattern.

And the third intelligent contract stores the stored retrieval link relation through a distributed blockchain server to realize distributed storage based on the blockchain technology.

Specifically, an authorizer registers or logs in an account number on an authorization terminal device, and uploads a plurality of seal patterns to a first intelligent contract in the intelligent contracts through a blockchain platform, so that only one stamp stamping machine can realize remote stamping application and authorization work of a plurality of different stamps according to different stamp applications, and further different coding information and specific seal patterns are stamped.

The applicant registers or logs in an account number on the application terminal equipment, fills in a seal application form, and sends the seal application form to the authorization terminal equipment through the blockchain platform. The authorizer receives the application for the seal sent by the application terminal device at the authorization terminal device and initially checks whether the application condition is met; the application form for stamping is an electronic application form, and comprises an application form serial number, application time, essential information of an applicant, and display and application reasons of a required stamping file. Typically, the application form content of the application seal comprises application serial number, application time, application seal type, applicant name, applicant contact information, applicant personal or affiliated company basic information, application reason, application seal file photo and remark information.

If the primary audit does not pass, the information of the primary audit rejection is sent to the application terminal equipment through the distributed blockchain server.

And the initial review rejection information comprises initial review rejection time and a batch word of initial review rejection of an authorizer.

If the primary audit passes, the information of the primary audit passes is respectively sent to the application terminal equipment and the first intelligent contract through the distributed block chain server, the first intelligent contract searches the internal storage to obtain a specific seal pattern corresponding to the current seal application, the coding information is randomly generated, and the coding information and the specific seal pattern are sent to the application terminal equipment through the distributed block chain server.

The information of the initial review includes the time of the initial review, the wholesale of the authorized person, and the index value of the block chain of the chapter application form, namely the hash value of the chapter application form on the block chain platform.

Through the steps, each secondary seal is generated with the coding information and the specific seal pattern, and the coding information is attached with the related information of the application and the authorization of the secondary seal, so that each seal has traceability, and the requirements on the safety and the convenience of seal use can be met while the application and the authorization of remote seal are realized.

The method also comprises the following steps after the primary examination passes,

and if the comparison results are consistent, performing a final result processing step.

The information of the terminal interruption includes the time of the terminal interruption and the prompt of the tamper or damage of the witness video.

The distributed blockchain server is used for transmitting the stamping witness information to the authorized terminal equipment, and the characteristics of decentralization, openness, safety, independence and anonymity of the blockchain technology ensure the safety and privacy of the stamping witness information. Because the second hash value and the first hash value are respectively obtained from two different approaches, if the comparison results are inconsistent, the video with the seal witness is tampered or damaged, and if the comparison results are consistent, the video with the seal witness is true and credible. Therefore, whether the seal witness video is tampered or not can be judged by comparing the second hash value with the first hash value, so that a method for conveniently distinguishing the authenticity of the seal authorization condition is provided, and illegal events such as seal embezzlement, unauthorized seal and the like are effectively avoided.

Further, the final result processing step includes the steps of,

Specifically, the final audit program includes an automatic hash check and a manual audit. After the automatic hash check is passed, the authorizer continues to conduct manual verification, namely, the authorizer checks whether the stamping process is truly and credible by carefully watching and checking the stamping witness video. If the checking result is judged to be not true and credible, transmitting the information of the final review rejection to the application terminal equipment on the blockchain platform through the authorization terminal equipment; if the checking result is true and credible, transmitting the information passing the final examination to the application terminal equipment and a second intelligent contract in the intelligent contracts through the block chain platform by the authorization terminal equipment; meanwhile, the second intelligent contract sends final-audit transfer information to a third intelligent contract in the intelligent contracts through the blockchain platform;

the final-review transfer information comprises a blockchain index value of the witness video and a blockchain index value of information passing through the final review;

after receiving the initial review transfer information sent by the first intelligent contract, the third intelligent contract marks as a hovering state and temporarily stores the initial review transfer information, and searches whether the second intelligent contract issues corresponding final review transfer information or not on the blockchain platform continuously within the hovering waiting time;

If the search is unsuccessful within the hover waiting time, the third intelligent contract deletes the primary review transfer information; the hover wait time ranges from one minute to thirty days with a typical hover wait time of seven days.

If the search is successful within the hovering waiting time, the third intelligent contract automatically constructs and stores the search link relation between the initial examination transfer information, the final examination transfer information, the corresponding coding information and the specific seal pattern.

The third intelligent closing date automatically broadcasts the stored retrieval link relation to all distributed blockchain servers for storage through a blockchain platform, and distributed storage based on a blockchain technology is realized, so that anyone with a request for asking for evidence of coding information and a specific seal pattern can conveniently and reliably retrieve and verify.

The seal application form is an electronic application form and comprises an application form serial number, application time, essential information of an applicant, display of required seal files and application reasons.

Typically, the application form content of the application seal comprises application serial number, application time, application seal type, applicant name, applicant contact information, applicant personal or affiliated company basic information, application reason, application seal file photo and remark information.

And the information of the final reject comprises the time of the final reject and the wholesale of the final reject of the authorized person.

The information of the passing of the terminal comprises the time of the passing of the terminal, the wholesale of the passing of the authorized person and the index value of the witness information of the stamping, namely the hash value of the witness information of the stamping on the blockchain platform.

The distributed storage based on the blockchain technology is realized by constructing the retrieval link relation between the initial audit transfer information and the final audit transfer information, the corresponding coding information and the specific seal pattern and storing the information by the distributed blockchain server.

Any person requiring the code information and specific seal pattern can use the terminal device with the software or plug-in unit, open the camera to scan the code information on the paper file, then automatically send the search request to the third intelligent contract through the block chain platform, and obtain the search feedback, including the search failure or the search success.

If the feedback search fails, the feedback is sent to a witness for searching failure, and the searched coding information and the specific seal pattern authorization fail or counterfeit prompt;

if the feedback search is successful, the feedback is fed back to a witness to search successfully, and the corresponding blockchain index value of the application form, the blockchain index value of the information passed by the initial examination, the blockchain index value of the seal witness video and the blockchain index value of the information passed by the final examination are searched through a blockchain platform to obtain the corresponding key information from application to final authorization, so that the searched coding information and the specific seal pattern are verified to be true and credible.

The existing remote intelligent seal realizes the process of remote seal application, authorization and seal by means of intelligent hardware and internet technology, but in the process, the seal application and remote authorized data are processed, transmitted and backed up by a central server or a cloud server of a corresponding intelligent seal company, and the data are transmitted through the internet, so that the possibility that the central server, the cloud server and the internet are physically damaged by natural disasters and invaded by computer viruses exists, and the potential risks can lead to paralysis of the whole remote intelligent seal system and privacy leakage of users.

By using the seal block chain authorization method, key data of seal application authorization can be transmitted and recorded on the block chain, and the characteristics of decentralization, openness, safety, independence and anonymity of the block chain technology can ensure the convenience, safety and privacy of seal application and authorization processes. The information of the application of the seal, the information of the initial examination passing, the information of the seal witness and the information of the final examination passing in the application authorization process are all stored on the blockchain, and the blockchain technology ensures that the data can resist physical damage of natural disasters and invasion of computer viruses.

By using the seal block chain authorization method, a more convenient and efficient seal application authorization and seal process is realized, namely, a person or a unit can apply for seal remotely to any person or unit worldwide only by leaving home in the own home or unit, remotely acquire authorization and perform seal locally, and key data transmission and storage of the whole process are based on a block chain technology, so that the seal application behavior is ensured to be safe and reliable. This will greatly improve the convenience and efficiency of the stamping process. The operation and maintenance of the stamp stamping machine by any company, unit or person will require little management and labor costs. The seal management system and the blockchain authorization method are based on the blockchain technology, wherein key data are transmitted and stored through autonomous mining behaviors of a distributed blockchain server, and data processing, receiving, forwarding and feedback in the middle process are automatically completed by the assistance of intelligent contracts.

The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.

Claims

1. A stamp stamping machine, characterized by: comprising

the key storage module is used for storing a key, a digital certificate and a program which are necessary for information decryption and encryption, and the key, the digital certificate and the program which are necessary for the central processing unit module to be called for decrypting the coding information and the specific seal pattern received by the communication module, so as to obtain the coding information and the specific seal pattern and then transmit the coding information and the specific seal pattern to the die generator;

The stamp generator is connected with the central processing unit module and is used for receiving the coding information and the specific stamp pattern and generating a stamp with the coding information and the specific stamp pattern, and when the stamp generator does not receive the coding information and the specific stamp pattern which pass the stamp application, the stamp generator is in an initial state, and any stamp pattern or coding information cannot appear when the stamp stamping machine is pressed; after receiving the coding information and the specific seal pattern, the bottom surface of the stamp generator can generate a stamp with the coding information and the specific seal pattern, and the authorized coding information and the specific seal pattern can appear when the stamp is pressed;

one side of the die generator is provided with a positioning module, a pressing detection module and a camera module which are respectively connected with the central processing unit module,

2. A stamp stamping machine as recited in claim 1, wherein: the stamp generator comprises a thermosensitive material film, a micro heating body positioned above the thermosensitive material film and a driving circuit for controlling the heating of the micro heating body, and the driving circuit is connected with the central processing unit module.

3. A stamp stamping machine as recited in claim 1, wherein: the coding information is one-dimensional code or two-dimensional code.

4. A stamp stamping machine as recited in claim 3, wherein: the one-dimensional code is arranged around the specific seal pattern.

5. The seal management system is characterized in that: comprising a distributed blockchain server based on intelligent contracts, an application terminal device, an authorization terminal device, and a stamp stamping machine as claimed in any of claims 1-4; wherein, the liquid crystal display device comprises a liquid crystal display device,

the authorization terminal equipment is used for receiving the chapter application sent by the application terminal equipment and initially checking whether the chapter application condition is met;

6. The seal management system according to claim 5, wherein: the stamping machine comprises a stamping machine, a stamping machine and a stamping and witness server, wherein the stamping and witness server is used for receiving and storing stamping witness videos uploaded by the terminal equipment, and transmitting download links of the stamping witness video to the authorization terminal equipment, and the stamping witness video is a stamping process recorded by the stamping machine.

7. The seal block chain authorization method is characterized in that: use of a stamp management system as claimed in claim 5 or 6, comprising the steps of:

8. The seal blockchain authorization method of claim 7, wherein: the method also comprises the following steps after the primary examination passes,

the stamping witness information comprises stamping position information, time stamp information and a first hash value obtained by carrying out hash operation on a stamping witness video by the stamping machine;

the stamping witness video is recorded by a stamping machine and uploaded to a cloud server through application terminal equipment;

the automatic hash check is that the authorized terminal equipment downloads the seal witness video from the cloud server and carries out hash operation to obtain a second hash value, and then compares the second hash value with the first hash value to judge whether the two hash values are consistent,

9. The seal blockchain authorization method of claim 8, wherein: the final result processing step includes the steps of,