CN111858627A - Academic degree and academic calendar query system and method based on block chain - Google Patents
Academic degree and academic calendar query system and method based on block chain Download PDFInfo
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- CN111858627A CN111858627A CN202010585262.4A CN202010585262A CN111858627A CN 111858627 A CN111858627 A CN 111858627A CN 202010585262 A CN202010585262 A CN 202010585262A CN 111858627 A CN111858627 A CN 111858627A
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- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/23—Updating
- G06F16/2379—Updates performed during online database operations; commit processing
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/245—Query processing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/248—Presentation of query results
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/25—Integrating or interfacing systems involving database management systems
- G06F16/252—Integrating or interfacing systems involving database management systems between a Database Management System and a front-end application
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- G—PHYSICS
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- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
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Abstract
The invention discloses a academic degree and academic calendar query system based on a block chain and a method thereof, and aims to solve the problems that data in the academic degree and academic calendar query system in the prior art are easy to tamper and leak. It includes: building a block chain network, and storing data in a school database into the block chain network; generating a query request according to the input information of the inquirer; performing query request verification, and searching data in the block chain network according to the query request to obtain academic degree and academic calendar query results; and feeding back the academic degree and academic calendar query result to the query page. The invention can realize the academic data query operation with high security level and high accuracy through the block chain.
Description
Technical Field
The invention relates to a academic degree and academic calendar query system based on a block chain and a method thereof, belonging to the technical field of school information management.
Background
The academic degree certificate and the graduation certificate/academic degree certificate are printed in a unified mode in a traditional mode to prove that a certain student reaches the corresponding academic level and obtains the corresponding academic degree and academic degree, and a plurality of anti-counterfeiting features are arranged on the paper certificate for subsequent verification and comprise anti-counterfeiting paper, watermark patterns, special characters printed by anti-counterfeiting ink and the like. If the authenticity of the degree and the academic calendar is further verified in addition to the paper certificate, the authenticity needs to be verified through a file reserved in a school where students obtain the degree and the academic calendar.
Nowadays, with the development of informatization, various high school departments begin to use internet to store, distribute and query academic degree and academic calendar information, and the electronic query mode brings great convenience to the academic degree and academic calendar certification, but also brings information security problems. On one hand, the management mode of the existing academic degree and academic calendar query website is not strict enough, and the risk of information leakage exists in the information uploading and query processes, on the other hand, the security of the related academic degree and academic calendar query website is not enough, so that the website is easy to be attacked by a network, and the academic degree and academic calendar information is easy to be tampered.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a academic degree academic calendar query system and a method thereof based on a block chain.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
in a first aspect, the present invention provides a academic calendar query system based on a block chain, including:
the block chain building module is used for building a block chain network on the basis of the campus network and storing academic degree and academic history data in the school database into the block chain network;
The data updating module is used for updating data in the block chain network at regular time according to the data in the school database;
the query request module is used for generating a query request and transmitting the query request to the block chain network interface;
the request verification module is used for receiving the query request and verifying the query request according to a preset intelligent contract;
the academic calendar query module is used for searching data in the block chain network according to the query request after the query request passes the verification to obtain an academic calendar query result;
and the academic calendar display module is used for displaying the academic calendar query result queried by the academic calendar query module.
With reference to the first aspect, further, the blockchain constructing module includes:
the node construction module is used for generating corresponding block chain link points according to computer information in the campus network and classifying the nodes;
the block building module is used for building a block and building the connection relation between the block and the nodes to form a complete block chain network;
and the data transaction module is used for accessing an API (application programming interface) of the block chain network and storing the academic degree data in the school database into the block.
With reference to the first aspect, further, the query request includes inquirer identity information and query keywords, the inquirer identity information includes an account number, a password and/or an inquirer IP, the query keywords include a name and a query type or a school number and a query type, and the query types include a academic degree query, a academic calendar query and a academic degree query.
With reference to the first aspect, further, the academic calendar query module includes:
the request analysis module is used for acquiring the query request passing the verification and extracting the query keyword from the query request;
the block query module is used for traversing all blocks in the local area chain network according to the query keyword to obtain an initial query result;
and the block checking module is used for processing the query keywords and the initial query data according to the matching algorithm to obtain the academic degree and academic calendar query result.
With reference to the first aspect, the system further includes a user management module, configured to create a user account and edit user permissions, where the user permissions include administrator permissions and general permissions.
In a second aspect, the invention provides a block chain-based academic calendar query method, which specifically comprises the following steps:
building a block chain network according to the campus network, and storing data in a school database into the block chain network;
generating a query request according to the input information of the inquirer;
verifying the query request according to a preset intelligent contract, searching data in the block chain network according to the query request passing the verification, and obtaining a academic degree and academic calendar query result;
And feeding back the academic degree and academic calendar query result to the query page.
With reference to the second aspect, further, the method for constructing a blockchain network includes the following steps:
generating corresponding block chain link points according to computer information in the campus network, and dividing the block chain link points into a main node and a slave node;
creating blocks by using program software, and constructing the connection relation between the blocks and the nodes to form a complete block chain network;
and writing a data transaction program, accessing an API (application program interface) of the block chain network at regular time, and storing the academic degree data in the school database into the block.
With reference to the second aspect, further, the query request includes inquirer identity information and query keywords, the inquirer identity information includes an account number, a password and/or an inquirer IP, the query keywords include a name and a query type or a school number and a query type, and the query types include a academic degree query, a academic calendar query and a academic degree query.
With reference to the second aspect, further, the searching for data in the blockchain network according to the verified query request specifically includes the following steps:
acquiring and analyzing a query request passing verification, and extracting query keywords from the query request;
Selecting a block, and retrieving data in the block according to the query key;
after the data retrieval of the current block is finished, entering the previous block according to the hash value of the previous block stored in the current block, and continuing the data retrieval;
traversing all blocks in the regional chain network to obtain an initial query result related to the retrieval keyword, wherein the initial query result comprises one or more data chains;
and sequentially calculating the matching degree of each data chain in the initial query result and the query keyword according to a matching algorithm, and selecting the data chain with the highest matching degree as the academic calendar query result.
With reference to the second aspect, further, the academic degree query result includes a name, an academic number, graduation time, academic degree information and/or academic degree information.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a academic degree query system and a method thereof based on a block chain, which utilize a block chain network to store academic degree data, can effectively improve the safety and stability of data storage, and avoid the situation that the data is falsified.
In the data query process, the invention firstly verifies the query request, then queries related data only by the account number with authority, can effectively improve the security of query, and further avoids information leakage. And carrying out matching check on the data inquired according to the inquiry keywords so as to ensure the accuracy of the final inquiry result. In addition, the invention also provides a data updating module which updates the data in the block chain network in real time and ensures the accuracy and the real-time performance of the data in the block chain.
Drawings
Fig. 1 is a schematic structural diagram of a academic calendar query system based on a block chain.
FIG. 2 is a flow chart of the steps of a academic calendar query method based on a blockchain.
In the figure, 1 is a blockchain construction module, 2 is a data updating module, 3 is an inquiry request module, 4 is a request verification module, 5 is a academic degree study inquiry module, 6 is a academic degree study display module, and 7 is a user management module.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The invention provides a academic degree and academic degree inquiry system based on a block chain, which comprises a block chain construction module 1, a data updating module 2, an inquiry request module 3, a request verification module 4, an academic degree and academic degree inquiry module 5, an academic degree and academic degree display module 6 and a user management module 7, wherein the block chain construction module is used for constructing a block chain network and storing academic degree and academic degree data in a school database into the block chain network; the data updating module is used for updating data in the block chain network at regular time; the query request module is used for generating a query request; the request verification module is used for verifying the query request according to a preset intelligent contract; the academic degree calendar query module is used for searching data in the block chain network according to the query request to obtain an academic degree calendar query result; the academic calendar display module is used for displaying the academic calendar query result queried by the academic calendar query module; the user management module is used for creating and editing the user account.
The block chain building module is used for building a block chain network on the basis of the campus network and storing academic degree and academic history data in the school database into the block chain network;
the block chain building module comprises a node building module, a block building module and a data transaction module, wherein the node building module is used for generating corresponding block chain link points according to computer information in the campus network and classifying the nodes; generally, a computer corresponds to a node, the nodes are classified according to the position (office area, teaching area), type (teacher computer, leader layer computer, student computer) and the like of the computer, the nodes are mainly divided into a master node and a slave node, and the master node is provided with more functions than the slave node, and at least comprises the functions of verifying, saving, transmitting affairs, executing events and the like. When an offline slave node comes back online, it must first catch up with the rest of the blockchain by downloading all blocks added to the blockchain after disconnecting from the node, i.e. block chain synchronization; the master node must be online and provide much more memory than the slave nodes, and the master node typically chooses a server dedicated to data storage within the school.
The block building module is mainly used for building blocks, each block comprises a block number, an index, a timestamp, a transaction list, a workload certificate and a hash value of the previous block, and the connection relation between the blocks and the nodes is built to form a complete block chain network. And the data transaction module is used for actively accessing an API (application programming interface) interface of the block chain network after the block chain network is built, and storing the academic degree data in the school database into the block. The school database is used for storing student information in a school and contains data such as student names, school numbers, professions, school entering time, graduation time, school class scores, academic degrees and academic calendars.
Because the data in the school database is updated in real time, the data updating module is arranged, the data updating module is used for connecting the school database with the block chain network at regular time, the data in the school database is updated to the blocks of the block chain, and the blocks can be newly built as required to store new data in the updating process. The data update module may set the time and frequency of data updates.
After the inquirer logs in the inquiry system, the inquirer can input the inquiry content on the inquiry interface, and the inquiry request module generates an inquiry request according to the inquiry content and transmits the inquiry request to the block chain network interface. The inquiry request comprises inquirer identity information and inquiry keywords, the inquirer identity information comprises an account number, a password and/or an inquirer IP, the inquirer IP is generally an IP address of a computer used by an inquirer, and the inquiry keywords comprise a name and an inquiry type or a school number and an inquiry type, wherein the inquiry type comprises a academic inquiry, a academic inquiry and a academic inquiry. In addition, the query keywords can also comprise the contents of study time, graduation time, specialty and the like, and the more the query keywords are, the more accurate the query result is.
The request verification module receives the query request, mainly analyzes the information of the inquirers in the query request, processes and matches the information of the inquirers according to an intelligent contract preset in the process of establishing the regional chain network, on one hand, whether the current network environment of the inquirers is safe can be judged, on the other hand, the authority of the inquirers can be determined, and only the query request meeting the authority requirement can pass the verification.
The academic degree and academic calendar query module comprises a request analysis module, a block query module and a block verification module, wherein the request analysis module is mainly used for acquiring a query request passing verification and extracting query keywords from the query request; the block query module is mainly used for traversing all blocks in the regional chain network according to the query keyword to obtain an initial query result related to the query keyword, and in the query process, data which can be extracted is related to a part of the query keyword, such as a name/school number, so that the initial query result can comprise a plurality of data chains, and each data chain is linked with a group of data; the block verification module can process the query keyword and the initial query data according to the matching algorithm, and selects a data chain which is most matched from the initial query data as a academic calendar query result.
The user management module can be used for creating a new user account and editing the user permission of an existing user account, each user account comprises a unique account, a password and a user permission, the user permission comprises an administrator permission and a common permission, the administrator permission operates the block chain building module and the data updating module and can inquire all data in the block chain, the common permission only has more inquiry function, and according to specific conditions, part of the common permission can only inquire part of the data, under the common condition, only school leaders and teachers can have the administrator permission, and other people all have the common permission.
The invention also provides a block chain-based academic calendar query method, as shown in fig. 2, which specifically comprises the following steps:
building a block chain network according to the campus network, and storing data in a school database into the block chain network;
generating a query request according to the input information of the inquirer;
verifying the query request according to a preset intelligent contract, searching data in the block chain network according to the query request passing the verification, and obtaining a academic degree and academic calendar query result;
and feeding back the academic degree and academic calendar query result to the query page.
In the embodiment of the invention, the method for constructing the block chain network comprises the following steps:
the method comprises the steps of generating corresponding block chain link points according to computer information in a campus network, and dividing the block chain link points into a main node and a slave node. When an offline slave node comes back online, it must first catch up with the rest of the blockchain by downloading all blocks added to the blockchain after disconnecting from the node, i.e. block chain synchronization; the master node must be online and provide much more memory than the slave nodes, and the master node typically chooses a server dedicated to data storage within the school.
Creating a block by using program software, firstly creating a Blockchain class, and creating two empty lists in a constructor, wherein one is used for storing a block chain, and the other is used for storing transactions; creating a creation block, adding a workload certificate to the creation block, and creating new blocks on the basis of the creation block, wherein each new block contains the hash value of the previous block to form a chain. Each block includes a block number, an index, a timestamp, a transaction list, a workload certificate, and a hash value of the previous block, etc.
The pseudo code to create a new tile is as follows:
block = {
'index': 1,
'timestamp': 1506057125.900785,
'transactions': [
{
'sender': "8527147fe1f5426f9dd545de4b27ee00",
'recipient': "a77f5cdfa2934df3954a5c7c7da5df1f",
'amount': 5,
}
],
'proof': 324984774000,
'previous_hash': "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824"
}
and after the block is created, constructing the connection relation between the block and the node to form a complete block chain network. In practice, since data in the blockchain is updated in real time, blocks in the blockchain network are also increased continuously, and when data update requires that a new block is added to the blockchain through some mechanism of the protocol, the new block needs to be transmitted to all nodes in the blockchain network.
Writing a data transaction program, and storing the academic degree and academic calendar data in the school database into the block by using the API (application programming interface) of the program timing access block chain network. The pseudo code for data storage is as follows:
class Blockchain(object):
def new_transaction(self, sender, recipient, amount):
"""
adding a new set of data to transactions
Param sender: < str > sender address
Param recipient: < str > receiver address
Param amount: < int > amount
Return: < int > contains the index of the block of the data
"""
self.current_transactions.append({
'sender': sender,
'recipient': recipient,
'amount': amount,
})
return self.last_block['index']+ 1
In the embodiment of the invention, the query request generated according to the input information of the inquirer comprises the identity information of the inquirer and the query keyword, the identity information of the inquirer is generally generated after the inquirer logs in the query system, and the query keyword is generally formed by the information input by the inquirer through a query page. The inquiry person identity information comprises an account number, a password and/or an inquiry person IP, the inquiry person IP is generally an IP address of a computer used by the inquiry person, and the inquiry keywords comprise a name and an inquiry type or a scholarly number and an inquiry type, wherein the inquiry types comprise scholarly position inquiry, academic calendar inquiry and academic calendar inquiry. In addition, the query keywords can also comprise the contents of study time, graduation time, specialty and the like, and the more the query keywords are, the more accurate the query result is.
In the embodiment of the invention, the specific operation of verifying the query request according to the preset intelligent contract is as follows:
firstly, extracting inquiry person identity information from an inquiry request, then processing and matching the inquiry person identity information according to a preset intelligent contract in the process of establishing a regional chain network, carrying out network monitoring on an inquiry person IP in the inquiry person identity information, judging whether the current network environment of the inquiry person is safe or not, matching the account number and the password of the inquiry person in a user authority library of the system on the premise of the network environment safety, determining the authority of the inquiry person, further analyzing inquiry keywords according to the authority of the inquiry person, and determining whether the inquiry person has the right to extract information corresponding to the inquiry keywords, wherein for example, the inquiry authority of a certain inquiry person can only inquire the information of students in the 12-level and civil engineering profession, the inquiry keywords contain words of the communication engineering profession, and then judging that the inquiry person has no inquiry authority. The inquiry request which does not accord with the authority requirement can be rejected, the inquiry page displays an unauthorized word, and only the inquiry request which accords with the authority requirement can pass the verification to enter the subsequent operation.
Searching data in the blockchain network according to the verified query request specifically comprises the following steps:
And acquiring and analyzing the query request passing the verification, and extracting the query keyword from the query request.
Optionally selecting a block, which may be the newest block in the block chain or the block which has been subjected to the query operation last time, retrieving data in the block according to the query keyword, which may be a single retrieval or a combined retrieval, for example, if the query keyword includes name, school number, specialty and query type, the data may be retrieved by a name + query type manner, or may be retrieved by a name + school number + specialty + query type manner, the single retrieval is enabled because the calculation amount of the single retrieval is small, but the corresponding accuracy is reduced, and if the query keyword allows the single retrieval, the method of school number + query type is preferred.
And after the data retrieval of the current block is finished, entering the previous block according to the hash value of the previous block stored in the current block, and continuing the data retrieval.
And when no previous block exists, selecting a block again, judging whether the block is searched or not until all blocks in the local area chain network have been subjected to data search, and acquiring an initial query result related to the search keyword.
In order to obtain an accurate query result, the matching degree of each data chain in the initial query result and the query keyword is sequentially calculated according to a matching algorithm, and the data chain with the highest matching degree is selected as a academic calendar query result. The matching algorithm in the embodiment of the invention selects a bidirectional matching algorithm in a maximum matching algorithm, divides data in a data chain into single character strings, compares the single character strings with the query keywords, and calculates the matching degree according to the number of the same words and the weight of each word.
The academic degree and academic calendar query result comprises contents such as name, academic number, graduation time, academic degree information and/or academic calendar information, and the query page can be a browser page, a computer popup window or a mobile phone terminal page.
The system and the method of the invention utilize the block chain network to store the academic calendar data, can effectively improve the safety and the stability of data storage, avoid the situation that the data is falsified, and leave the query record in each query, thereby being convenient for subsequent management and check and reducing the risk of data leakage. In the data query process, the invention can verify the query request, only the account number with the authority can query the related data, thereby effectively improving the query safety and further avoiding information leakage. The invention realizes academic data query operation with high security level and high accuracy through the block chain.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A academic calendar query system based on a block chain is characterized by comprising:
the block chain building module is used for building a block chain network on the basis of the campus network and storing academic degree and academic history data in the school database into the block chain network;
the data updating module is used for updating data in the block chain network at regular time according to the data in the school database;
the query request module is used for generating a query request and transmitting the query request to the block chain network interface;
the request verification module is used for receiving the query request and verifying the query request according to a preset intelligent contract;
the academic calendar query module is used for searching data in the block chain network according to the query request after the query request passes the verification to obtain an academic calendar query result;
and the academic calendar display module is used for displaying the academic calendar query result queried by the academic calendar query module.
2. The system of claim 1, wherein the blockchain building module comprises:
the node construction module is used for generating corresponding block chain link points according to computer information in the campus network and classifying the nodes;
the block building module is used for building a block and building the connection relation between the block and the nodes to form a complete block chain network;
and the data transaction module is used for accessing an API (application programming interface) of the block chain network and storing the academic degree data in the school database into the block.
3. The system of claim 1, wherein the query request includes identity information of a querier and query keywords, the identity information of the querier includes an account number, a password and/or an IP of the querier, the query keywords include a name and a query type or a scholarly number and a query type, and the query types include scholarly query, scholarly query and scholarly study query.
4. The system of claim 1, wherein the academic calendar query module comprises:
The request analysis module is used for acquiring the query request passing the verification and extracting the query keyword from the query request;
the block query module is used for traversing all blocks in the local area chain network according to the query keyword to obtain an initial query result;
and the block checking module is used for processing the query keywords and the initial query data according to the matching algorithm to obtain the academic degree and academic calendar query result.
5. The system according to claim 1, further comprising a user management module for creating a user account and editing user permissions, wherein the user permissions include administrator permissions and general permissions.
6. A academic calendar query method based on a block chain is characterized by comprising the following steps:
building a block chain network according to the campus network, and storing data in a school database into the block chain network;
generating a query request according to the input information of the inquirer;
verifying the query request according to a preset intelligent contract, searching data in the block chain network according to the query request passing the verification, and obtaining a academic degree and academic calendar query result;
and feeding back the academic degree and academic calendar query result to the query page.
7. The academic calendar query method based on the blockchain as claimed in claim 6, wherein the method for constructing the blockchain network comprises the following steps:
generating corresponding block chain link points according to computer information in the campus network, and dividing the block chain link points into a main node and a slave node;
creating blocks by using program software, and constructing the connection relation between the blocks and the nodes to form a complete block chain network;
and writing a data transaction program, accessing an API (application program interface) of the block chain network at regular time, and storing the academic degree data in the school database into the block.
8. The method as claimed in claim 6, wherein the query request includes identity information of a querier and query keywords, the identity information of the querier includes an account number, a password and/or an IP of the querier, the query keywords include a name and a query type or a scholarly number and a query type, and the query types include scholarly query, scholarly query and scholarly study query.
9. The academic aptitude query method based on the blockchain as claimed in claim 6, wherein the step of searching the data in the blockchain network according to the verified query request specifically comprises the following steps:
Acquiring and analyzing a query request passing verification, and extracting query keywords from the query request;
selecting a block, and retrieving data in the block according to the query key;
after the data retrieval of the current block is finished, entering the previous block according to the hash value of the previous block stored in the current block, and continuing the data retrieval;
traversing all blocks in the regional chain network to obtain an initial query result related to the retrieval keyword, wherein the initial query result comprises one or more data chains;
and sequentially calculating the matching degree of each data chain in the initial query result and the query keyword according to a matching algorithm, and selecting the data chain with the highest matching degree as the academic calendar query result.
10. The block chain-based academic query method according to claim 9, wherein the academic query result comprises name, academic number, graduation time, academic information and/or academic information.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113791764A (en) * | 2021-09-09 | 2021-12-14 | 四川启睿克科技有限公司 | Method for automatically monitoring surplus energy of wave field area block chain account and giving alarm |
| CN116701549A (en) * | 2023-06-21 | 2023-09-05 | 黑龙江禹桥科技开发有限公司 | Big data multi-scale fusion supervision system and method based on blockchain |
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