KR102270217B1 - Blockchain system that generates job seeker information based on commute time - Google Patents

Abstract

The present invention relates to a block chain system generating job seeker information based on commuting time. The system includes a communication module, a control module, and a server.

Description

A blockchain system that generates job seeker information based on commute time}

The present invention relates to a blockchain system that generates job seeker information based on commuting time.

Korean Patent Application Laid-Open No. 10-2005-0074942 relates to a system and method for requesting consulting by searching for a person with field experience on a system for providing employment documents and information.

The above document is a database of job descriptions and employment-related information of field-experienced persons in each field in a system for providing employment documents and information using the Internet, and the above documents are those of students who want to find a job or change job, and clients who have experience in other companies want to work in particular. A faithful resume and self-introduction letter with the competency as a new employee and experienced employee close to the talent type desired by the company by acquiring the experience, work ability, and certification that will actually be included in the resume by searching for experienced people in the company and business field and requesting employment-related consulting It is starting to allow experienced workers to directly consult on employment information to clients so that they can submit their application.

Laid-Open Patent Publication No. 10-2005-0074942

An embodiment of the present invention aims to provide a blockchain system that generates job seeker information based on commuting time.

The technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the following description. will be able

An embodiment of the present invention provides a management server, comprising: a communication module for transmitting and receiving signals to and from a block chain network including a plurality of block chain nodes; and a control module that generates career information based on the job seeker's commuting information, wherein the career information includes identification data representing any one of the plurality of block chain nodes; We propose a management server that includes

The control module may generate the career information further based on the basic information of the job seeker.

The basic information, including personal information of the job seeker, development, management, business, marketing, advertising, design, sales, customer service, retail, distribution, HR, education, media, engineering, design, investment, analysis, real estate , manufacturing, production, game production, logistics, trade, F&B (Food and Beverage), law, law enforcement agency, medical, pharmaceutical, bio, government, non-profit, construction, and facility matching at least one of the above career information may be included.

The communication module receives a first message requesting the career information from at least one blockchain node among the plurality of blockchain nodes, and the first message and the at least one blockchain node use a predetermined standard. is satisfied, it may be characterized in that the second message including the career information is transmitted to the at least one block chain node.

The control module is configured to obtain a third message requesting confirmation of the integrity of the second career information from at least one of the plurality of blockchain nodes, and from among the second career information and the third message. Extracting the first authentication information from at least one, determining whether the first authentication information and the second authentication information are identical, and receiving a fourth message indicating that the integrity of the second career information is confirmed according to the determination result It may be characterized in that it is transmitted to at least one blockchain node.

Another embodiment of the present invention provides a block chain network system including a plurality of network nodes, comprising: a first network node; and a second network node for transmitting and receiving signals related to the first network node and the block chain; including, wherein the second network node generates career information based on the commuting information of the job seeker, wherein the career information includes identification data representing any one of the plurality of blockchain nodes. We propose a blockchain network system, characterized in that it includes.

As such, an embodiment of the present invention has a technical effect in terms of proposing a block chain system for generating job seeker information based on an enhanced commute time.

In the present invention, since there is no need to separately manage documented career information (eg, resume, career certificate) as in the prior art, management costs are reduced, and reliability of career information can be improved because it is difficult to hack through distributed processing. It is significant.

In addition, the present invention can improve the stability of career information by providing a method for verifying the integrity of the career information.

In addition, the present invention can improve the reliability of the career information by preventing forgery or falsification of the career information.

The effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned may be clearly understood by those of ordinary skill in the art to which the present invention belongs from the following description. will be.

Other aspects, features and benefits as described above of certain preferred embodiments of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings.
1 is a diagram illustrating a blockchain network according to an embodiment of the present invention.
2 is a block diagram illustrating a management server according to an embodiment of the present invention.
3 is a flowchart illustrating a method according to an embodiment of the present invention.
4 is a flowchart illustrating a method according to an embodiment of the present invention.
5 is a flowchart illustrating a method according to an embodiment of the present invention.
6 is a flowchart illustrating a method according to an embodiment of the present invention.
It should be noted that throughout the drawings, like reference numerals are used to denote the same or similar elements, features, and structures.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In describing the embodiments, descriptions of technical contents that are well known in the technical field to which the present invention pertains and are not directly related to the present invention will be omitted. This is to more clearly convey the gist of the present invention without obscuring the gist of the present invention by omitting unnecessary description.

For the same reason, some components are exaggerated, omitted, or schematically illustrated in the accompanying drawings. In addition, the size of each component does not fully reflect the actual size. In each figure, the same or corresponding elements are assigned the same reference numerals.

Advantages and features of the present invention, and a method for achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains. It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

At this time, it will be understood that each block of the flowchart diagrams and combinations of the flowchart diagrams may be performed by computer program instructions. These computer program instructions may be embodied in a processor of a general purpose computer, special purpose computer, or other programmable data processing equipment, such that the instructions performed by the processor of the computer or other programmable data processing equipment are not described in the flowchart block(s). It creates a means to perform functions. These computer program instructions may also be stored in a computer-usable or computer-readable memory that may direct a computer or other programmable data processing equipment to implement a function in a particular manner, and thus the computer-usable or computer-readable memory. It is also possible that the instructions stored in the flow chart block(s) produce an article of manufacture containing instruction means for performing the function described in the flowchart block(s). The computer program instructions may also be mounted on a computer or other programmable data processing equipment, such that a series of operational steps are performed on the computer or other programmable data processing equipment to create a computer-executed process to create a computer or other programmable data processing equipment. It is also possible that instructions for performing the processing equipment provide steps for performing the functions described in the flowchart block(s).

Additionally, each block may represent a module, segment, or portion of code that includes one or more executable instructions for executing specified logical function(s). It should also be noted that in some alternative implementations it is also possible for the functions recited in blocks to occur out of order. For example, two blocks shown one after another may in fact be performed substantially simultaneously, or it is possible that the blocks are sometimes performed in the reverse order according to the corresponding function.

At this time, the term '~ unit' used in this embodiment means software or hardware components such as field-programmable gate array (FPGA) or ASIC (Application Specific Integrated Circuit), and '~ unit' refers to what role carry out the However, '-part' is not limited to software or hardware. The '~ unit' may be configured to reside on an addressable storage medium or may be configured to refresh one or more processors. Thus, as an example, '~' denotes components such as software components, object-oriented software components, class components, and task components, and processes, functions, properties, and procedures. , subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables. The functions provided in the components and '~ units' may be combined into a smaller number of components and '~ units' or further separated into additional components and '~ units'. In addition, components and '~ units' may be implemented to play one or more CPUs in a device or secure multimedia card.

In describing the embodiments of the present invention in detail, an example of a specific system will be mainly targeted, but the main subject matter to be claimed in the present specification is to extend the scope disclosed herein to other communication systems and services having a similar technical background. It can be applied within a range that does not deviate significantly, and this will be possible at the discretion of a person with technical knowledge skilled in the art.

1 is a diagram illustrating a blockchain network according to an embodiment of the present invention.

Referring to FIG. 1 , the block chain network 100 includes a management server 110 , a first block chain node 120 , a second block chain node 130 , a third block chain node 140 , and a fourth blockchain node 150 . In the case of FIG. 1, a total of five blockchain nodes 110, 120, 130, 140, and 150 including the management server 110 are shown, but this is only an example selected for convenience of design, The number of blockchain nodes included in the blockchain network 100 of the present invention is not limited thereto. Also, as described above, the management server 110 may be one of the blockchain nodes (and/or the blockchain network 100), and may be an entity that implements the features of the blockchain nodes described below. . In the present invention, after grouping and/or hashing career information stored in the management server 110 and storing it in a block chain, it is possible to verify or determine forgery and/or falsification of career information. In addition, each of the plurality of blockchain nodes 110 , 120 , 130 , 140 , 150 may be referred to as a network node (and/or a blockchain network node). In this case, the career information may include a blockchain-based career certificate generated based on basic information of a third user who is a job seeker.

For example, each of the plurality of blockchain nodes 110 , 120 , 130 , 140 , 150 in the blockchain network 100 may perform a function of a cryptocurrency wallet. The cryptocurrency wallet may include a function of i) storing a private key and a public key, or ii) storing a public key and a private key, unlike the wallets we use to store money in our daily lives, and a cold wallet (cold wallet) It can also include a function as a wallet). In this regard, a hot wallet indicates a wallet that operates online, and a cold wallet indicates a wallet that operates offline, and may indicate a hardware wallet, USB storage, paper wallet, and the like. Hot wallets are convenient to use because they are connected to the Internet, but they can be vulnerable to hacking, and cold wallets are practically impossible to hack because they are not connected to the Internet.

In general, a block chain is an untamperable distributed storage created and managed by a peer-to-peer (P2P) network. A block chain refers to a collection of data blocks created by a transaction (indivisible unit work between two parties) one after another in the form of a chain. Since the previous block is encrypted in succession with other blocks and data agreed by more than half of the users is recognized as real data, it is impossible to forge or falsify data once recorded. A typical application of blockchain is Bitcoin, a decentralized electronic currency that records the transaction process of cryptocurrency. The block chain can store confirmed transaction details that occur between users for a certain period of time. And, many users each have their own copy of the blockchain, and transaction details can be made public to everyone. In this way, only the transaction details agreed by more than half of the users are recognized as real data, and can be stored in blocks to be stored permanently.

And referring to FIGS. 1 and 2 , the management server 110 may be connected to other blockchain nodes 120 , 130 , 140 , 150 through a wired/wireless network. The management server 110 groups career information generated through the control module 210, received through the communication module 220, or stored in the storage module 250, chains elements of the grouped career information, and Chained career information may be stored in a block chain of the storage module 250 . The management server 110 may group at least one career information stored in the data storage area 251 (not shown) of the storage module 250 using a chain scaler. The management server 110 may store the grouped career information in a chain form in the storage module 250 using a chain scaler. The management server 110 may store at least one element included in the grouped career information in the block chain 252 (not shown). The management server 110 may group a plurality of career information stored in the data storage area 251 of the storage module 250 in units of a predetermined number. The management server 110 may group a plurality of career information stored in the storage module 250 based on at least one of a predetermined time, the predetermined number of career information, and the importance of the career information. The management server 110 may generate a Merkle hash based on at least one piece of career information stored in the storage module 250 and group a plurality of career information such that the generated Merkle hash is included. .

And referring to FIGS. 1 and 2 , the management server 110 converts the contents to be stored in the storage module 250 into a block chain transaction and participates in the block chain network 100 other block chain nodes 120 , 130 , 140 and 150 . ) can be sent to The career information to be stored in the blockchain transaction may include a Merkle hash identifier, a group identifier, and/or an identifier of a previous group. The management server 110 compares at least one element stored in the block chain 252 with at least one element included in the grouped career information based on at least one of a predetermined time and the number of the stored career information. Thus, it is possible to verify the integrity of the stored career information. When the stored career information is not integrity, the management server 110 may output whether the stored career information is integrity through the output module 240 . When the career information stored in the storage module 250 is forged and/or altered or damaged, the management server 110 outputs so that an administrator (a second user) who manages the management server 110 can know such details. The integrity may be output through the module 240 . The control module 210 may generate a certificate for determining whether the stored block chain is integrity and transmit it to at least one electronic device. The certificate may include information on the stored at least one career information, information on the grouped career information, and information on the stored block chain. The certificate may be used by the management server 110 to determine whether the career information is integrity. The control module 210 allows the request of at least one element to the stored blockchain i) through a website and/or mobile app that provides or supports the career information providing service of the present invention, and/or ii) other When received from a blockchain node 120, 130, 140, 150, the requested at least one element is i) output through the website and/or mobile app, and/or ii) another blockchain node 120, 130, 140, 150).

2 is a block diagram illustrating a management server according to an embodiment of the present invention.

The management server 110 may be a server operating a website and/or a mobile app that provides or supports the career information provision service of the present invention, and may operate a history management platform related to the career information provision service.

1 and 2 , the management server 110 controls the first control module 210 , the first communication module 220 , the first input module 230 , and/or the first output module 240 . The user terminals 120 and 140 may include a second control module 291 (not shown), a second communication module 292 (not shown), a second input module 293 (not shown), and/or a second 2 output modules 294 (not shown) may be included.

The control modules 210 and 291 may directly/indirectly control the management server 110 and/or the user terminals 120 and 140 to implement the operations/steps/processes according to an embodiment of the present invention. Also, the control modules 210 and 291 may include at least one processor, and the processor may include at least one central processing unit (CPU) and/or at least one graphics processing device (GPU).

In addition, the control modules 210 and 291 control information (eg, commands) based on API (Application Programming Interface), IoT (Internet of Things), IIoT (Industrial Internet of Things), ICT (Information & Communication Technology) technology, etc. create and/or manage

The communication modules 220 and 292 may transmit/receive various data, signals, and information to and from the management server 110 and/or the user terminals 120 and 140 . In addition, the communication modules 220 and 292 may include a wireless communication module (eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (eg, a local area network (LAN) communication module). module, or a power line communication module). In addition, the communication modules 220 and 292 may be configured with a first network (eg, a short-range communication network such as Bluetooth, WiFi direct, or IrDA (Infrared Data Association)) or a second network (eg, a cellular network, the Internet, or a computer network (eg: It can communicate with an external electronic device through a telecommunication network such as LAN or WAN). These various types of communication modules may be integrated into one component (eg, a single chip) or may be implemented as a plurality of components (eg, multiple chips) separate from each other.

The input modules 230 and 293 transmit commands or data to be used in the management server 110 and/or components of the user terminals 120 and 140 (eg, the control module 210, etc.) to the management server 110 and/or It may be received from outside the user terminals 120 and 140 (eg, a user (eg, a first user, a second user, etc.), a manager of the management server 110 , etc.). In addition, the input modules 230 and 293 are a touch recognition capable display installed in the management server 110 and/or the user terminals 120 and 140, a touch pad, a button-type recognition module, a voice recognition sensor, a microphone, a mouse, or a keyboard, etc. may include. Here, the touch recognition capable display, touch pad, and button type recognition module may recognize a touch through the user's body (eg, finger) through a pressure-sensitive and/or capacitive method.

The output modules 240 and 294 are generated by the control module 210 of the management server 110 and/or the user terminals 120 and 140 or obtained through the communication modules 220 and 292 (eg, voice signals). ), information, data, images, and/or various objects. For example, the output modules 240 and 294 may include a display, a screen, a displaying unit, a speaker, and/or a light emitting device (eg, an LED lamp).

The storage module 250 stores data such as a basic program, an application program, and setting information for the operation of the management server 110 and/or the user terminals 120 and 140 . In addition, the storage module is a flash memory type (Flash Memory Type), a hard disk type (Hard Disk Type), a multimedia card micro type (Multimedia Card Micro Type), a card type memory (eg, SD or XD memory, etc.), Magnetic Memory, Magnetic Disk, Optical Disk, Random Access Memory (RAM), Static Random Access Memory (SRAM), Read-Only Memory, ROM, Programmable Read-Only Memory (PROM), Electrically Erasable Programmable Read (EEPROM) -Only Memory) may include at least one storage medium.

In addition, the storage module 250 may store personal information of a customer (a first user), personal information of a manager (a second user), and the like, who use the management server 110 and/or the user terminals 120 and 140 . . Here, personal information includes a name, ID (identifier), password, resident registration number, street name address, phone number, mobile phone number, email address, and/or a reward generated by the management server 110 (eg, points, etc.) ) may include information indicating In addition, the control modules 210 and 291 may perform various operations using various images, programs, contents, data, etc. stored in the storage module 250 .

3 is a flowchart illustrating a method according to an embodiment of the present invention.

Referring to FIG. 3 , the method according to an embodiment of the present invention may include a third user inputting basic information for career information ( S310 ).

Here, the third user may be an employee, a job seeker, a job seeker, and/or a job-seeking student (training student) who wishes to change jobs or seeks a company to work for.

The third user, for example, runs a website and/or a mobile app that provides or supports the career information providing service (and/or history management platform) of the present invention through the user terminals 120 and 140, and You can enter basic information for career information through the website and/or mobile app. The basic information may be recorded in the storage module 250 of the management server 110 .

1) The basic information may include first category information and second category information about a job related to a career of the third user, and the second category information may include the first category information. It may be information matched to the information.

The first category information may represent categories of higher concepts related to occupations, development, management/business, marketing/advertising, design, sales, customer service/retail (retail, distribution), HR/education, media, engineering/ May include design, investment/analysis/real estate, manufacturing/production, game production, logistics/trade, F&B (Food and Beverage), law/law enforcement, medical/pharmaceutical/bio, government/non-profit, construction/facility .

The second category information may indicate a category of a sub-concept related to a job, and the second category information may match the first category information.

The second category information may include, for example, web developers, server developers, front-end developers, Java developers, Android developers, iOS developers, Python developers, DevOps/system administrators, data related or matching development (first category information). This could include engineers, Node.js developers, system/network administrators, C/C++ developers, development managers, machine learning engineers, data scientists, and more. In addition, the second category information is, for example, a service planner, business development/planner, project manager, strategic planner, operation manager, data analyst, accountant/accounter, etc. related to or matching management/business (first category information) may include. In addition, the second category information is, for example, a digital marketer, marketer, marketing strategy planner, content marketer, brand marketer, social marketing, advertising planner (AE), etc. related to or matching marketing/advertisement (first category information). may include In addition, the second category information includes, for example, a UX designer, UI/GUI designer, web designer, graphic designer, mobile designer, video/motion designer, product designer, etc. related to or matching design (first category information). can do.

In addition, the second category information includes, for example, corporate sales representatives, sales managers, technical sales experts, external sales experts, major customer company representatives, solution consultants, customer success managers, etc. related to or matching sales (first category information). may include In addition, the second category information may include, for example, a CS manager, MD, CS advisor, retail MD, CRM expert, fashion MD, store clerk, etc. related to or matching customer service/retail (first category information). have. In addition, the second category information is, for example, HR/training (first category information) related or matching HR personnel, recruiters, organization management specialists, personnel evaluation specialists, HRD / education specialists, salary / compensation specialists, HRBPs, etc. may include. In addition, the second category information may include, for example, a content creator, video editor, producer, editor, video producer, writer, sound engineer, etc. related to or matching media (first category information). In addition, the second category information may include, for example, an automotive engineer, a mechanical engineer, an electrical engineer, a product engineer, an electromechanical engineer, a control engineer, an electronic engineer, etc. related to or matching engineering/design (the first category information). can

In addition, the second category information may include, for example, an accountant, financial analyst, accountant/accountant, analyst, IR, CPA, compliance officer, etc. related to or matching investment/analysis/real estate (first category information). can In addition, the second category information may include, for example, a quality manager, production manager, manufacturing engineer, test engineer, process manager, machinist, machine/equipment operation, safety related or matching manufacturing/production (first category information). This may include managers, chemists, materials managers, production workers, and the like. In addition, the second category information may include, for example, game client developers, game designers, mobile game developers, Unity developers, game server developers, game artists, game graphic designers, games related to or matching game production (first category information). This may include Operators (GMs), Unreal Developers, and the like. In addition, the second category information may include, for example, a logistics manager, a logistics analyst, a transport manager, a delivery person, a warehouse expert, a shipping/shipping clerk, a flight manager, a freight related to or matching logistics/trade (the first category information). This may include truck drivers, trade clerks, and the like.

In addition, the second category information may include, for example, cooks, food MDs, restaurant workers, restaurant menu developers, nutritionists, bartenders, restaurant managers, etc. related to or matching F&B (first category information). In addition, the second category information may include, for example, a legal person related to or matching with a law/law enforcement agency (the first category information), a legal advisor, a lawyer, a patent attorney, a speculator, and the like. In addition, the second category information may include, for example, medical/pharmaceutical/bio (first category information) related or matching researchers, biotechnology researchers, clinical trial researchers, case managers, veterinarians, pharmaceutical analytical chemists, clinical trial nurses, microbiologists, and the like. In addition, the second category information may include, for example, information analysts, counselors, public officials, professional soldiers, environmental experts, local experts, volunteers, etc. related to or matching government/non-profit (first category information). Also, the second category information may include, for example, a maintenance manager, an estimate technician, a mechanic, a manager, etc. related to or matching the construction/facility (the first category information).

2) In addition, the basic information may include personal information of the third user (job seeker). Here, the personal information is a third user's name, ID (identifier), password, resident registration number, street name address, phone number, mobile phone number, email address, and/or a reward generated by the management server 110 (reward) ( Examples; points, etc.) may be included.

3) In addition, the basic information includes the amount and/or details (payment details) paid by the third user through the website and/or mobile app that provides or supports the career information providing service (and/or history management platform) of the present invention. ), information on rewards (points) paid or used by the third user may be further included.

4) Also, the basic information may include commuting information of the third user, which will be described in detail later with reference to FIG. 6 .

5) The basic information may also include work information of the third user. For example, the work information may include the total amount of work processed by the third user, work content and/or work amount processed by year and field. As another example, the work information may include, when the third user is a professional worker, the work information may include professionalism index and/or event-specific win/loss information, information indicating a win rate per event or event area. As another example, the work information may include information indicating a name, period, number of participants, and the like for a project in which the third user participated. In addition, the work information may include information indicating a region, year, field, and position of a place where the third user worked and/or is working. In addition, the business information may include the third user's books, thesis, press release, and information indicating major customers and active groups. For example, the control module 210 of the management server 110 may set or determine the expertise index based on the third user's books, papers, press releases, and information indicating major customers and active groups.

For example, the website and/or mobile app of the present invention may execute operations corresponding to steps S320 to S340 described later only after a predetermined authentication procedure is completed through the basic information of the third user. As an example, the predetermined authentication procedure may include an identity authentication process performed based on the personal information of the third user.

And, the method includes a step (S320) of the control module 210 of the management server 110 generating career information based on the block chain technology and the basic information.

For example, the management server 110 may generate career information including the basic information and block chain identification data. The block chain identification data may be, for example, unique specific data (or unique data) of the designated block chain network 100 and/or block chain nodes 110 , 120 , 130 , 140 , 150 . For example, the specific data is a transaction ID (transaction identifier) indicating the exchange history of the block chain-based career information performed in the specific block chain network 100 or the latest block number related to the career information (eg, the most recently generated block number).

On the other hand, in blockchain technology, a block may represent a basic data unit including identification, encryption, and transaction information, and one block is a block hash, header, and body. is composed of In this case, the body may include various transaction information. A block hash is a block identifier and includes a hash value of the header. The header may consist of version information, a previous block hash, a Merkle root, a time, a difficulty, and/or a nonce.

The Merkle root may indicate the final value of the transaction information Merkle tree stored in the body of the block, and the time may indicate the creation time of the block. Difficulty can represent a number for adjusting the difficulty to obtain a target value (expressed in bits), and nonce represents the number of calculations that increase by 1 to obtain a hash value in the process of creating a block. can

And, the method includes a step (S330) of storing the blockchain-based career information generated by the control module 210 of the management server 110 in the storage module 250 of the management server 110 (S330), and management The server 110 may include a step (S340) of delivering to at least one of the other block chain nodes 120, 130, 140, and 150 in the block chain network 100.

In the present invention, the block chain connects career information as a block, and in a P2P network distributed environment, data is distributed and stored in the personal digital equipment of the participants (peers, peers) rather than the central management server. It can indicate a way to jointly manage Specifically, the basic structure of a block chain is a collection of blocks connected one after another, and is based on a peer-to-peer (P2P) method. In addition, for a certain period of time, more than half of the participants exchange transaction details with each other, confirm and approve, and only the financial transaction details agreed with by digital signatures are made into one block. Then, the newly created block is connected to the previous block chain, and a copy is made and distributed to each participant's terminal and stored.

Therefore, in the case of using the block chain, there is no need to separately manage documented career information (e.g., resume, career certificate) as in the prior art, so management costs are reduced, and the credibility of career information is also improved because it is difficult to hack through distributed processing. do.

For example, a block chain is implemented with a plurality of block chain nodes (110, 120, 130, 140, 150) as participants, and is distributed to each of the plurality of block chain nodes (110, 120, 130, 140, 150). The stored information may include basic information of the third user and/or a hash value of career information generated by the management server 110 . The plurality of blockchain nodes (110, 120, 130, 140, 150) always maintains the latest version of the information distributed and stored in each of the plurality of blockchain nodes (110, 120, 130, 140, 150), may be sharing

For example, each of the plurality of block chain nodes 110, 120, 130, 140, 150 is external through a wireless communication network such as a mobile phone, a smartphone, a PDA (Personal Digital Assistant), a PMP (Portable Multimedia Player), a tablet PC, etc. It can include all kinds of handheld-based wireless communication devices that can be connected to the server. In addition, it can communicate with external servers through a network, such as desktop PCs, tablet PCs, laptop PCs, and IPTV including set-top boxes. It may also include a communication device to which it may be connected.

Each of the plurality of block chain nodes 110, 120, 130, 140, 150 may be implemented in the form of a terminal 120, 140, as described above, but is not limited thereto, and a server type 110 operated by a specific company. , 130, 150) may be implemented. As an example, the blockchain node may be implemented in the form of a cloud server 150 .

Among the plurality of block chain nodes 110 , 120 , 130 , 140 and 150 , the nodes 120 and 140 implemented in the form of a terminal can store information shared on the block chain in the first security area of the memory, and a plurality of blocks Among the chain nodes 110 , 120 , 130 , 140 and 150 , the nodes 110 , 130 , 150 implemented in the form of a server may store information shared on the block chain in the second security area of the database. For example, the blockchain network 100 can be configured based on various types of blockchains, such as a blockchain in which participants are composed only of terminals, a blockchain in which participants are composed only of servers, and a blockchain in which participants are composed of a mixture of terminals and servers. have.

The management server 110 participates as one node on the blockchain network 100 and generates career information block data to a plurality of other blockchain nodes 120, 130, 140, 150 in the blockchain network 100. will share A plurality of blockchain nodes 110 , 120 , 130 , 140 , 150 in the blockchain network 100 may detect forgery and/or falsification of career information.

On the other hand, the S310 to S340 may be implemented sequentially, but the order may be changed and implemented, and only some of the S310 to S340 may be implemented in combination with other substrates (methods) of the present invention.

As described above, the management server 110 according to an embodiment of the present invention is a communication module 220 for transmitting and receiving signals with the block chain network 100 including a plurality of block chain nodes 110 , 120 , 130 , 140 , 150 . ) and the job seeker's commuting information to generate career information, wherein the career information identifies any one of the plurality of blockchain nodes (110, 120, 130, 140, 150). may include a control module 210, characterized in that it includes data, wherein the control module 210 generates the career information further based on the basic information of the job seeker, and the basic information is i) the including personal information of job seekers; ii) development, management, business, marketing, advertising, design, sales, customer service, retail, distribution, human resources, education, media, engineering, design, investment, analysis, real estate, manufacturing, production, Game production, logistics, trade, F&B (Food and Beverage), law, law enforcement agencies, medical, pharmaceutical, bio, government, non-profit, construction, and may be included in the career information by matching at least one of facilities.

In this case, the career information may include a blockchain-based career certificate generated based on basic information of a third user who is a job seeker. Meanwhile, the 'third user' here may be the same as the 'fourth user' described later.

4 is a flowchart illustrating a method according to an embodiment of the present invention.

Referring to FIG. 4 , in a method according to an embodiment of the present invention, a first user executes a website and/or a mobile app that provides or supports the career information providing service (and/or history management platform) of the present invention. It may include a step (S410).

For example, the first user may execute the website and/or mobile app through the user terminal 120 and input first information through the website and/or mobile app. The first information may be transmitted from the terminal 120 to the management server 110 , and may be recorded in the management server 110 and/or the storage module 250 .

The first information may include personal information of the first user. Here, the personal information is the first user's name, ID (identifier), password, resident registration number, street name address, phone number, mobile phone number, email address, and/or a reward generated by the management server 110 (reward) ( Examples; points, etc.) may be included.

In addition, the first information includes information on the amount and/or details (payment details) paid by the first user through the website and/or mobile app of the present invention, and rewards (points) paid or used by the first user. It may include more information about

For example, the website and/or mobile app of the present invention may execute operations corresponding to the following steps S420 to S450 only after performing a predetermined authentication procedure through the first information of the first user. For example, the predetermined authentication procedure may include an identity authentication process performed based on the personal information of the first user.

And, the method may include the step of the management server 110 receiving a request message (first message) for requesting career information (S420).

Here, the request message for requesting career information may be referred to as a career information request message or a first message. The career information request message (first message) is information about job seekers, job seekers, and/or job seekers (job-seekers) corresponding to the above-described first category information and/or second category information, that is, information about a third user. It may include information requesting information.

As an example, the management server 110 may receive a request message for requesting career information (a career information request message) from the first user through the website and/or mobile app of the present invention. That is, the first user may input a career information request message (first message) through the website and/or mobile app of the present invention.

As another example, the management server 110 may receive a request message (first message) for requesting career information from at least one of the other block chain nodes 120, 130, 140, and 150 in the block chain network 100. have.

And, the method may include the step of the management server 110 providing career information in response to the request message (S430).

For example, the management server 110 may control to output career information through the website and/or mobile app of the present invention in response to the career information request message.

As another example, the management server 110 may transmit career information to at least one block chain node 120 , 130 , 140 , 150 that has transmitted the career information request message in response to the career information request message. Also, the career information may be included in the second message and delivered to the at least one block chain node 120 , 130 , 140 , 150 .

Meanwhile, S410 to S430 may be sequentially implemented, but the order may be changed and implemented, and only some of S410 to S430 may be implemented in combination with other descriptions (methods) of the present invention.

As such, the communication module 220 according to an embodiment of the present invention is i) generated by the control module 210 of the management server 110 or ii) by the communication module 220 of the management server 110 . received or iii) a first message requesting career information stored in the storage module 250 (and/or the blockchain 252) of the management server 110 to the plurality of blockchain nodes 120, 130, 140, 150), when the first message and the at least one blockchain node satisfy a predetermined criterion, a second message including the career information is transmitted to the at least one block chain node. It can be characterized by transmitting to a blockchain node.

5 is a flowchart illustrating a method according to an embodiment of the present invention.

Referring to FIG. 5 , the method according to an embodiment of the present invention may include receiving, by the management server 110, a message (third message) requesting confirmation of integrity for career information ( S510 ). . In this case, the career information may include a blockchain-based career certificate generated based on basic information of a third user who is a job seeker.

As an example, the management server 110 may receive the third message from the first user through the website and/or mobile app of the present invention. That is, the first user may input the third message through the website and/or mobile app of the present invention. In this case, career information for which integrity verification is requested may also be transmitted from the terminals 120 and 140 used by the first user.

As another example, the management server 110 may receive the third message from at least one of the other block chain nodes 120 , 130 , 140 , and 150 in the block chain network 100 . At this time, at least one node (from among the block chain nodes 120, 130, 140, 150) that transmits the third message can transmit the career information for which integrity verification is requested when transmitting the third message. have.

And, the method may include the step of the management server 110 obtaining the first authentication information for the career information (S520).

Here, the first authentication information may include a first hash value for the career information, and the first hash value is used to verify (and/or to verify) the integrity of the career information. it may be for For example, the first hash value may include first category information included in career information, second category information, personal information of a third user (job seeker) (and/or fourth user), and a third user (job seeker). (and/or the fourth user) may represent a hashed value of commuting information and/or information divided and compressed by grouping the information. In addition, the hash value may be generated by at least one of the block chain nodes 120, 130, 140, and 150 that have transmitted the third message.

As an example, the first authentication information is generated by the user terminals 120 and 140 that have transmitted the third message (and/or transmitted the career information), or as another example, the first authentication information is the first authentication information 3 may be created by other blockchain nodes 120, 130, 140, 150 that have sent the message (and/or sent the career information).

For example, the first authentication information may be included in the third message or may be included in career information for which integrity verification is requested. In this case, the management server 110 may extract the first authentication information from the third message and/or the career information.

The first authentication information may include, for example, at least a portion of a value obtained by hashing information indicating a history (including generation and delivery details) of career information.

And, the method may include the step of the management server 110 acquiring the second authentication information for the career information (S530).

Here, the second authentication information may include a second hash value (and/or a predetermined specific value) for the career information. For example, the second hash value includes first category information, second category information, and third user (job seeker) (and/or a career information stored in the storage module 250 of the management server 110 ). The personal information of the fourth user), the hash value of the commuting information of the third user (job seeker) (and/or the fourth user), and/or information divided and compressed by grouping the information may be indicated.

The control module 210 may obtain transaction information indicated by the specific data from a node included in the specific block chain network by using the specific data. The control module 210 may generate a second hash value using specific career information requested by the message. In this case, the second hash value may be obtained in the same way as generating the first hash value. For example, the second hash value may include at least a portion of a value obtained by hashing career information requested in the message.

In addition, the method may include the step of the management server 110 determining whether the first authentication information and the second authentication information for the career information are identical (S540).

As an example, the management server 110 may proceed to step S550 described below only when the identity between the first authentication information and the second authentication information is confirmed.

As another example, the management server 110 may proceed to step S550, which will be described later, only when the identity between the first hash value and the second hash value is confirmed. For example, the first hash value and the second hash value may be codes composed of N1 alphabets and/or numbers (N2 alphabets and 'N1-N2' numbers may be codes (N1 and N2 are 0 to 100) may be an integer between).

As another example, when the management server 110 does not confirm the identity between the first authentication information and the second authentication information and/or the identity is not confirmed between the first hash value and the second hash value may not proceed to step S550 below. In addition, at this time, the management server 110 sends a message (eg, a fifth message) including information indicating that the integrity of the specific career information is not verified (and/or information indicating that the integrity of the specific career information is defective). It may transmit (and/or reply to) to at least one blockchain node 120 , 130 , 140 , 150 (which transmitted the third message).

And, the method may include the step of generating and outputting, by the management server 110, an integrity confirmation message (a fourth message) according to the determination result (S550).

For example, if the management server 110 is between the N codes indicated by the first hash value and the N codes indicated by the second hash value, i) all of them are the same or ii) alphabets and/or numbers above a certain ratio are the same. In this case, the fourth message may be generated and output.

For example, the fourth message may include information indicating that the integrity of the specific career information has been confirmed (and/or information indicating that it has been authenticated).

For example, the management server 110 may control to output the fourth message through the website and/or mobile app of the present invention in response to the third message.

As another example, the management server 110 may deliver (and/or reply to) the fourth message to at least one block chain node 120 , 130 , 140 , 150 that has transmitted the third message.

Meanwhile, S510 to S550 may be sequentially implemented, but the order may be changed and implemented, and only some of S510 to S550 may be implemented in combination with other substrates (methods) of the present invention.

In addition, the management server 110 according to an embodiment of the present invention transmits an integrity confirmation request message (third message) for career information in which identity is not recognized (block chain nodes 120, 130, 140, 150) Among them) in relation to at least one node, the management server 110 may include the following features. For convenience of explanation, it is assumed that it is the fourth blockchain node 150 that has transmitted the integrity confirmation request message (third message) for specific career information (third career information) that is not recognized for identity, and identity is recognized It is assumed that the fourth blockchain node 150 has transmitted the integrity confirmation request message (the third message) for the specific career information (the fourth career information) to be used (however, this is only an example). The management server 110 identifies the fourth block chain node 150 in which the number of times the third message related to the career information whose integrity is not confirmed exceeds the threshold as a result of the determination, and the identified fourth block chain node ( 150) may be created and recorded in the storage module 250 .

As an example, the management server 110 may transmit the black list to the identified fourth block chain node 150 as well as other block chain nodes 120 , 130 , and 140 . As another example, the management server 110 transmits the black list only to the block chain node 130 that has transmitted the integrity confirmation request message (third message) for specific career information (third career information) whose identity is confirmed. may be In this regard, the management server 110 includes a second block chain node 130 that has transmitted an integrity confirmation request message (third message) for specific career information (fourth career information) whose identity has been confirmed. A 'white list' may be created and recorded in the storage module 250 .

In addition, the management server 110 transmits a message (third message) including an integrity check request from a block chain node (eg, the second block chain node 130 ) included in the white list and blocks included in the white list. Integrity determination when a chain node (eg, the fourth blockchain node 150) sends a message (third message) including an integrity verification request may be performed according to different criteria.

As an example, the first authentication information extracted from the third message transmitted by the block chain node (eg, the second block chain node 130 ) included in the white list and stored in the storage module 250 of the management server 110 . Only when the similarity between the second authentication information exceeds the first threshold, the management server 110 may generate information indicating that the integrity is verified.

As another example, the first authentication information extracted from the third message transmitted by the block chain node included in the black list (eg, the fourth block chain node 150 ) and stored in the storage module 250 of the management server 110 . Only when the similarity between the second authentication information exceeds the second threshold, the management server 110 may generate information indicating that the integrity is verified. At this time, the management server 110 sets the second threshold to a value higher than the first threshold, thereby setting the criteria related to the block chain node included in the black list more strictly than the block chain node included in the white list. may be Here, the similarity, the first threshold, and the second threshold may be determined or set as values of 0.0 to 1.0 (ie, information expressed to the first decimal place between 0 and 1). For example, if the first hash value is 'XN45W1805A' and the second hash value is 'X545W1005A', 8 code words (alphabetic and/or number) among the 10-digit codes are the same, so the similarity at this time can be determined to be 0.8. .

And the other block chain nodes 120, 130, 140, 150 are generated through the control module 210, received through the communication module 220, or based on the certificate stored in the storage module 250, the block chain 252, City) may request the elements stored in the management server (110). The storage module 250 may store at least one block chain 252 for each career information grouped in the management server 110 . The management server 110 may verify the integrity of the career information by comparing the acquired elements with the grouped career information. The management server 110 compares at least one element stored in the block chain 252 with at least one element included in the grouped career information based on at least one of a predetermined time and the number of stored career information. You can verify the integrity of your career information. For example, when the career information is not integrity, the management server 110 transmits information indicating whether the career information is integrity to other block chain nodes 120 , 130 , 140 , 150 through the communication module 220 , and / Alternatively, integrity may be output through the output module 240 .

In addition, the management server 110 according to an embodiment of the present invention may perform a process of verifying the integrity of the career information in the following way.

The management server 110 may store the certificate generated by the control module 210 in the storage module 250 . In addition, the management server 110 sends the certificate to the other block chain nodes 120, 130, 140, 150 so that the other block chain nodes 120, 130, 140, and 150 can directly check the integrity of the career information. can be transmitted The management server 110 may transmit a block chain transaction to other block chain nodes 120 , 130 , 140 , 150 to store career information in the block chain 242 . Each of the other blockchain nodes 120 , 130 , 140 , 150 connected to the management server 110 may receive the certificate received from the management server 110 and store it in each storage module (and/or blockchain). . The certificate is generated by the control module 210 of the management server 110 or stored in the storage module 250 of the management server 110, information about career information, information about grouped career information, and block chain information may include. The elements stored in the block chain may include a Merkle hash identifier, a group identifier, and an identifier of a previous group. The 'information on career information' may include information indicating an identifier and contents of career information. The 'information on the grouped career information' may include an identifier of the grouped career information and a Merkle hash identifier. The 'block chain information' may include an identifier and a time stamp of the block chain. The certificate may be used by the management server 110 to determine whether data is integrity.

In addition, the management server 110 (eg, the control module 210 ) may determine whether an integrity check request is input. The management server 110 may receive an input requesting an integrity check from a user through a website and/or a mobile app that provides or supports the career information providing service of the present invention. The electronic device 101 may receive an input requesting an integrity check from the user through the output module 240 (eg, a touch screen). A user can verify whether his/her important data has been forged or falsified based on the data (career information) stored in the block chain based on the certificate.

And the management server 110 (and/or the control module 210 ) may acquire the elements stored in the block chain based on the certificate stored in the storage module 250 . The management server 110 may request grouped career information corresponding to the elements stored in the block chain 252 stored in the storage module 250 using the certificate stored in the storage module 250 . When the integrity check request (and/or the third message) is input, the management server 110 uses the certificate stored in the storage module 250 to store elements stored in the block chain 252 stored in the storage module 250 . It is possible to request and receive grouped career information corresponding to the blockchain network. The management server 110 uses the certificate stored in the storage module 250 to request the elements stored in the block chain 252 stored in the storage module 250 to the block chain network, and respond to the request from the block chain network. Corresponding elements can be obtained. For example, if the management server 110 does not have a block chain, it may request other block chain nodes 120, 130, 140, 150, but if the management server 110 has a block chain (eg: If the management server 110 participates in the block chain network 100), it can directly request the block chain network 100.

And the management server 110 may compare the acquired elements with the elements of the grouped career information. The management server 110 obtains the elements stored in the block chain from the block chain network 100 in order to determine whether the career information stored in the storage module 250 has been forged and/or falsified, and the obtained elements and Elements of the grouped career information stored in the certificate can be compared. The management server 110 may compare the elements of the career information stored in the storage module 250 with the elements obtained from the block chain network 100 . The management server 110 may compare whether the career information stored in the storage module 250 has been forged or altered in a predetermined time unit. When the number of career information stored in the storage module 250 exceeds a predetermined number, the management server 110 may compare whether the stored career information is forged or altered.

And the management server 110 (eg, the control module 210) can determine whether the integrity. The management server 110 compares the elements stored in the block chain with the elements of the grouped career information to the storage module 250 The management server 110 may determine the integrity of the career information stored in the storage module 250 by comparing the elements stored in the block chain with the elements of the grouped career information. The management server 110 may determine whether the career information stored in the storage module 250 has been forged or altered by comparing the elements stored in the block chain with the elements of the grouped career information. can compare the career information stored in the storage module 250 with the career information stored in the block chain 252 to determine whether the career information stored in the storage module 250 is integrity. Whether or not the career information stored in 250 is integrity may be determined in a predetermined time unit.

And the management server 110 may notify the administrator (second user). For example, if the career information stored in the storage module 250 is forged or altered, the management server 110 notifies the manager (the second user) of the management server 110 that the career information is not integrity. can do. Alternatively, when the career information stored in the storage module 250 is forged or tampered with, the management server 110 notifies the user (administrator, second user) of the management server 110 that the career information is not integrity. can If the stored career information is not integrity, the management server 110 outputs whether the information is integrity through the output module 240 so that an administrator (a second user) who manages the management server 110 can recognize it, or Through the output module 240 of the management server 110, information indicating whether or not integrity may be transmitted to other block chain nodes 120, 130, 140, and 150 may be transmitted.

6 is a flowchart illustrating a method according to an embodiment of the present invention.

Referring to FIG. 6 , the method according to an embodiment of the present invention may include the step of the management server 110 acquiring the commuting information of the fourth user ( S610 ).

The commuting information may be referred to as commuting information, attendance information, and the like, and may include information such as the fourth user's work time, leave time, access time and/or work time of a door. Here, the fourth user may be an employee who works for or commutes to the company of the first user who is an employee, or may be the same person as the above-described third user. The working time may be calculated by the control module 210 of the management server 110 based on the fourth user's work time, work time, and door access time. As an example, the control module 210 sets the time obtained by subtracting the commute time from the leaving time as the working time, or as another example, the control module 210 subtracts the commute time from the leaving time, and then increases the access time of the door. The subtracted time may be set as the working time. In this case, the entrance/exit time of the door may represent a difference between the time the fourth user left through the door and the time the fourth user entered through the door.

For example, the company of the first user (employee) is equipped with a device capable of checking (and/or confirming) the work time, leave time, entrance time, and/or working time of the fourth user (employee). can be As an example, the device may include a fingerprint recognition-based attendance confirmation device, an iris recognition-based attendance confirmation device, and the like, and the management server 110 receives a signal obtained from the device based on the received signal. Accordingly, information indicating the attendance time, the departure time, the entry/exit time of the door, and/or the working time may be generated.

As an example, the control module 210 sets the time when the fourth user is first detected by the device as the work time, and the time when the fourth user is detected for the second time by the device (or when the fourth user is first detected). An even-numbered time excluding the sensed time and the last sensed time) is set as the time when the fourth user exits through the door, and the third time the fourth user is sensed by the device (or the fourth time) The time when the user is detected for the first time and the time at which the user is detected the last time) is set as the time entered through the door, and the time when the fourth user is last detected by the device is set as the leaving time. can

In addition, the method may include the step of the management server 110 generating career information based on the commuting information of the fourth user (S620).

For example, the management server 110 may generate career information including the commuting information and block chain identification data. The block chain identification data may be, for example, unique specific data (or unique data) of the designated block chain network 100 and/or block chain nodes 110 , 120 , 130 , 140 , 150 . For example, the specific data is a transaction ID (transaction identifier) indicating the exchange history of the block chain-based career information performed in the specific block chain network 100 or the latest block number (eg, the most recently generated) related to the career information block number).

Meanwhile, S610 and S620 may be sequentially implemented, but the order may be changed and implemented, and only some of S610 and S620 may be implemented in combination with other descriptions (methods) of the present invention.

In addition, the management server 110 according to an embodiment of the present invention determines that the number of times the fourth user is detected by the sensor device exceeds a predetermined threshold (threshold value for the number of times) or is determined as the working time ( When the set time is lower than another threshold (threshold for time), the control module 210 may not generate career information and/or a block chain-based career certificate for the fourth user, and 4 Career information about the user and/or information indicating that a blockchain-based career certificate is not generated i) output through the website and/or mobile app, and/or ii) other blockchain nodes 120, 130, 140, 150).

In addition, the management server 110 according to an embodiment of the present invention may update the career information based on commuting information, and use the updated career information among other blockchain nodes 120 , 130 , 140 , 150 . At least one can pass

Embodiments of the present invention disclosed in the present specification and drawings are merely provided for specific examples in order to easily explain the technical contents of the present invention and help the understanding of the present invention, and are not intended to limit the scope of the present invention. That is, it is apparent to those of ordinary skill in the art to which the present invention pertains that other modifications can be implemented based on the technical spirit of the present invention. In addition, each of the above embodiments may be operated in combination with each other as needed. For example, all embodiments of the present invention are implemented by the blockchain network 100, the management server 110, the user terminals 120, 140, and/or other blockchain nodes 130, 150, etc., in which parts are combined with each other. can be

In addition, the method of controlling the block chain network 100, the management server 110, the user terminals 120, 140, and/or other block chain nodes 130, 150, etc. according to the present invention is through various computer means. It may be implemented in the form of executable program instructions and recorded in a computer-readable medium.

As such, various embodiments of the present invention may be embodied as computer readable code on a computer readable recording medium in a particular aspect. A computer readable recording medium is any data storage device capable of storing data that can be read by a computer system. Examples of computer readable recording media include read only memory (ROM), random access memory (RAM), and compact disk-read only memory (CD-ROM). ), magnetic tapes, floppy disks, optical data storage devices, and carrier waves (such as data transmission over the Internet). The computer readable recording medium may also be distributed over network coupled computer systems, so that the computer readable code is stored and executed in a distributed manner. In addition, functional programs, codes, and code segments for achieving various embodiments of the present invention may be easily interpreted by programmers skilled in the field to which the present invention is applied.

In addition, it will be appreciated that the apparatus and method according to various embodiments of the present invention can be realized in the form of hardware, software, or a combination of hardware and software. Such software may include, for example, a volatile or non-volatile storage device, such as a ROM, or a memory such as, for example, RAM, a memory chip, device or integrated circuit, whether erasable or rewritable, or For example, the storage medium may be stored in an optically or magnetically recordable storage medium such as a compact disk (CD), DVD, magnetic disk, or magnetic tape, and at the same time, a machine (eg, computer) readable storage medium. The method according to various embodiments of the present invention may be implemented by a computer or a portable terminal including a control unit (control module 210, 291) and a memory, and such a memory may contain instructions for implementing the embodiments of the present invention. It will be appreciated that it is an example of a machine-readable storage medium suitable for storing a program or programs including the program.

Accordingly, the present invention includes a program including code for implementing the apparatus or method described in the claims of the present specification, and a machine (computer, etc.) readable storage medium storing such a program. Further, such a program may be transmitted electronically over any medium, such as a communication signal transmitted over a wired or wireless connection, and the present invention suitably includes the equivalent thereof.

The embodiments of the present invention disclosed in the present specification and drawings are merely provided for specific examples to easily explain the technical contents of the present invention and help the understanding of the present invention, and are not intended to limit the scope of the present invention. In addition, the embodiments according to the present invention described above are merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent ranges of embodiments are possible therefrom. Accordingly, the true technical protection scope of the present invention should be defined by the following claims.

Claims (1)

In a blockchain system based on commuting time,
(1) a communication module that transmits and receives signals to and from a blockchain network including a plurality of blockchain nodes;
(2) first career information based on the job seeker's commuting information including information on the job seeker's arrival time, departure time, and entry time and the job seeker's basic information input through the terminal by the job seeker and generating a career certificate, wherein the first career information includes identification data indicating one of the plurality of blockchain nodes and a transaction identifier (ID) indicating an exchange history of the career information. a control module, and
(3) a server including a storage module; including,
The basic information includes the job seeker's personal information, work information, first job category information and second job category information,
The personal information includes the job seeker's name, address, contact information and information indicating a point generated by the control module,
The work information includes information on the job seeker's yearly workload and field workload, information on the project the job seeker participated in, and information on the place of work, and if the job seeker is a professional, information on the win or loss of the job seeker for each event, event It is determined based on information, books, papers, and press releases indicating the winning rate by area,
The first job category information indicates a category of a higher concept related to a job,
The second job category information indicates a category of a sub-concept related to a job,
The first career information includes a block hash, a header, and a body, the identification data corresponds to the block hash, the transaction ID corresponds to the body, and the header ) consists of version information, previous block hash, Merkle root, time, difficulty and nonce,
The control module is
Determine the access time based on whether the number of times the job seeker is recognized by a fingerprint recognition device or an iris recognition device installed at the door of the workplace where the job seeker has worked or is employed is an even number or an odd number,
When the number of times the job seeker is recognized by the fingerprint recognition device or the iris recognition device exceeds a first threshold, the first career information and the career certificate are not generated;
The control module is
Among the plurality of block chain nodes, a second block chain node in which the number of requests for verification of integrity for the second career information for which integrity is confirmed exceeds a second threshold is set as a white list,
Receiving a first message requesting confirmation of the integrity of the third career information from the second blockchain node,
extracting a first hash value for the third career information from the first message,
determining a first degree of similarity between the extracted first hash value and a second hash value for the first career information recorded in the storage module;
When the first similarity is higher than the first similarity threshold, a second message indicating that the integrity of the third career information has been confirmed is transmitted to the second blockchain node;
Among the plurality of block chain nodes, a fourth block chain node in which the number of requests to check the integrity of the fourth career information for which integrity is not verified exceeds the third threshold is set as a black list,
receiving a second message requesting confirmation of the integrity of the fifth career information from the fourth blockchain node,
extracting a third hash value for the fifth career information from the second message;
determining a second degree of similarity between the extracted third hash value and a second hash value for the first career information recorded in the storage module;
When the second similarity is higher than the second similarity threshold, a second message indicating that the integrity of the third career information is confirmed is transmitted to the second blockchain node, wherein the second similarity is higher than the first similarity characterized in that it is set to a value,
blockchain system.

Images