CN109741181B - Transaction matching method, system, server and medium based on intelligent contract - Google Patents
Transaction matching method, system, server and medium based on intelligent contract Download PDFInfo
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Abstract
The invention provides a transaction matching method based on an intelligent contract, which comprises the following steps: generating demand information and a judgment rule, and sending the demand information and the judgment rule to a block link point of a demand party for information release; initiating a judgment application to an intelligent contract in a block chain network, wherein the block chain network comprises a demand side block chain node, a demand responder block chain node and an intelligent contract; acquiring a judgment result sent by the intelligent contract from a block chain point of a demand party, screening a final counter-party for transaction from the judgment result, and if the counter-party for transaction is not selected, returning to continue executing the step of initiating a judgment application to the intelligent contract in the block chain network; and determining to select a final trading counterparty, and sending a selection result to the demand side blockchain node. The invention has the beneficial effects that: the block chain technology is adopted to realize the transaction matching without a third party, so that the authenticity, the fairness and the transparency of the transaction are improved, and the traceability of the transaction matching process is realized.
Description
Technical Field
The invention relates to the technical field of transaction matching, in particular to a transaction matching method, a system server and a medium based on an intelligent contract.
Background
The matching transaction refers to a transaction mode that a seller entrusts a sales order/a sales order in a transaction market, a buyer entrusts a purchase order/a purchase order in the transaction market, the transaction market determines the transaction price of both parties according to a price priority and time priority principle and generates an electronic transaction contract, and the transaction mode is that the transaction warehouse appointed by the transaction order carries out physical delivery.
Most of the existing transaction matching is realized by a centralized third party, for example, the matching of the transactions of the supply and demand parties is realized by a third party transaction platform or a third party organization. In recent years, some third party transaction platforms make transaction information look richer by issuing false information and expiration information in order to attract customers, and the customers often have difficulty in distinguishing authenticity of the transaction information. Sometimes, in order to realize mutual utilization and transportation, the supply and demand parties operate in a dark box in the transaction process, and the transaction process is not transparent enough and is difficult to define afterwards.
The centralized transaction matching mode has defects in the aspects of transaction fairness, information authenticity, integrity of supply and demand parties, transaction transparency and the like.
Disclosure of Invention
Aiming at the defects in the prior art, the embodiment of the invention provides a transaction matching method, a server, a system and a medium based on an intelligent contract, which can realize the transaction matching without a third party, improve the authenticity, the fairness and the transparency of the transaction and realize the traceability of the transaction matching process.
In a first aspect, a transaction matching method based on a smart contract provided in a first embodiment of the present invention is applicable to a demander application server, and the method includes:
generating demand information and a judgment rule, and sending the demand information and the judgment rule to a block link point of a demand party for information release;
initiating a judgment application to an intelligent contract in a block chain network, wherein the block chain network comprises a demand side block chain node and a demand responder block chain node;
acquiring a judgment result sent by the intelligent contract from a block chain point of a demand party, screening a final counter-party for transaction from the judgment result, and if the counter-party for transaction is not selected, returning to continue executing the step of initiating a judgment application to the intelligent contract in the block chain network;
and determining to select a final trading counterparty, and sending a selection result to the demand side blockchain node.
In a second aspect, a second embodiment of the present invention provides a transaction matching method based on smart contracts, including the following steps:
the method comprises the steps that a demander application server generates demand information and evaluation rules, and the demand information and the evaluation rules are sent to a demander block link point for information release;
the demand responder application server acquires the issued demand information and the evaluation rule from the block link point, makes a response and sends the response information to the demand responder block link point;
a demand side application program server initiates a judgment application to an intelligent contract in a block chain network, wherein the block chain network comprises demand side block chain nodes and demand response side block chain nodes;
the intelligent contract automatically judges according to a judgment rule to obtain a judgment result, and sends the judgment result to a block chain network;
the demander application server acquires the judgment result from the demander block chain link point, screens a final counterparty from the judgment result, and returns to continue executing the step of initiating a judgment application to an intelligent contract in the block chain network if the counterparty is not screened;
the application program server of the demand party determines to select a final transaction counter party and sends a selection result to the block chain node of the demand party;
and the block chain network realizes the information synchronization of the block chain nodes of the demand party and the block chain nodes of the demand response party through a consensus algorithm, and the transaction matching is completed.
In a third aspect, a third embodiment of the present invention provides a demander application server, including a memory and a processor, where the memory is connected to the processor, and the processor is configured to store a computer program, where the computer program includes program instructions, and is characterized in that the processor is configured to call the program instructions to execute the method steps described in the first embodiment.
In a fourth aspect, the transaction matching system based on the intelligent contract provided in the fourth embodiment of the present invention includes a demander terminal, a demand responder terminal, a demander application server, and a demand responder application server, where the demander terminal communicates with the demander application server, the demand responder terminal communicates with the demand responder application server, and the demander application server generates demand information and evaluation rules, and sends the demand information and the evaluation rules to demand party block link points for information distribution;
the demand responder application server acquires the issued demand information and the evaluation rule from the block link point, makes a response and sends the response information to the demand responder block link point;
a demand side application program server initiates a judgment application to an intelligent contract in a block chain network, wherein the block chain network comprises demand side block chain nodes and demand response side block chain nodes;
the intelligent contract automatically judges according to a judgment rule to obtain a judgment result, and sends the judgment result to a block chain network;
the demander application server acquires the judgment result from the demander block chain link point, screens a final counterparty from the judgment result, and returns to continue executing the step of initiating a judgment application to an intelligent contract in the block chain network if the counterparty is not screened;
the application program server of the demand party determines to select a final transaction counter party and sends a selection result to the block chain node of the demand party;
and the block chain network realizes the information synchronization of the block chain nodes of the demand party and the block chain nodes of the demand response party through a consensus algorithm, and the transaction matching is completed.
In a fifth aspect, a fifth embodiment of the present invention provides a computer-readable storage medium storing a computer program comprising program instructions which, when executed by a processor, cause the processor to perform the method steps of the first and second embodiments described above.
The invention has the beneficial effects that:
the transaction matching method, the transaction matching system, the server and the medium based on the intelligent contract provided by the embodiment of the invention adopt the block chain technology to realize the transaction matching without a third party, improve the authenticity, fairness and transparency of the transaction and realize the traceability of the transaction matching process.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 illustrates a flow chart of a transaction matching method based on smart contracts provided by a first embodiment of the invention;
FIG. 2 is a flow chart illustrating a method for intelligent contract-based transaction matching according to a second embodiment of the invention;
FIG. 3 is a block diagram illustrating a requestor application server according to a third embodiment of the present invention;
fig. 4 is a block diagram illustrating a transaction matching system based on smart contracts according to a fourth embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
As used in this specification and the appended claims, the term "if" may be interpreted contextually as "when", "upon" or "in response to a determination" or "in response to a detection". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted contextually to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
When carrying out transaction matching, a demand party (buyer) and a demand response party (seller) are generally involved, and in the transaction process, a transaction market determines the transaction price of both parties according to the price priority and time priority principles and generates an electronic transaction contract, and carries out a transaction mode of physical delivery according to a delivery warehouse specified by a transaction order. In the embodiment of the invention, the transaction matching method adopts a block chain technology to realize the transaction matching without a third party, and the block chain network comprises demand party block chain nodes and demand response party block chain nodes. The block chain technology is adopted to improve the authenticity, fairness and transparency of the transaction, and the traceability of the transaction matching process is realized.
As shown in fig. 1, a flowchart of a transaction matching method based on a smart contract according to a first embodiment of the present invention is shown, and is applicable to a demander application server, where the transaction matching method includes:
and S11, generating demand information and judgment rules, and sending the demand information and the judgment rules to the block link points of the demand side for information distribution.
Specifically, the application server of the demand side generates demand information and a judgment rule, the demand information and the judgment rule are sent to block chain nodes of the demand side for information distribution, and the block chain network realizes information synchronization of each block chain node in the network through a consensus algorithm. The judgment rule refers to evaluation and judgment basis of the response information of the demand responder on the demand information satisfaction condition.
And S12, sending a judgment application to the intelligent contract in the block chain network, wherein the block chain network comprises demand side block chain nodes and demand response side block chain nodes.
Specifically, the demand responder application server acquires demand information and a judgment rule issued by a demand responder from the demand responder block chain node, makes a response and sends the response information to the block chain node, and the block chain network realizes information synchronization of each block chain node of the block chain network through a consensus algorithm. The application program server of the demand side initiates a judgment application to the intelligent contract in the block chain network, and the intelligent contract is used for automatically executing the judgment process agreed in the contract. The intelligent contracts automatically match and judge the demand information of the demand party and the response information of the response party according to judgment rules registered in the block chain network to obtain judgment results, and the judgment results are sorted from high to low according to the satisfaction degree of the response information on the demand information in the embodiment. The intelligent contract sends the judgment result to the block chain nodes, the block chain network realizes the information synchronization of each block chain node in the network through a consensus algorithm, and realizes the synchronization of the judgment result on the block chain network, so that the participants can see the judgment result.
And S13, acquiring a judgment result sent by the intelligent contract from the block link point of the demand party, screening a final trading counterparty from the judgment result, and returning to continue to execute the step S12 if the trading counterparty is not selected.
Specifically, the demander application server obtains an evaluation result obtained by automatically evaluating the intelligent contract from the demander block link point, screens a final counterparty from the evaluation result, and returns to continue to execute the step S12 if the counterparty is not selected.
And S14, determining to select the final counterparty and sending the selection result to the block chain node of the demand party.
Specifically, after the application server of the demand party selects the final counterparty of the transaction, the selection result is sent to the block chain node of the demand party, the block chain network realizes information synchronization of the block chain network node through a consensus algorithm, and the selection result is recorded in the block chain network, so that the participant can check the selection result of the demand party at any time, the fairness and the authenticity are ensured, and the transaction matching is completed.
The transaction matching method based on the intelligent contract provided by the embodiment of the invention realizes transaction matching without a third party by adopting a block chain technology, improves the authenticity, fairness and transparency of transactions, and realizes traceability of a transaction matching process.
As shown in fig. 2, there is shown a flowchart of a transaction matching method based on intelligent contracts provided by a second embodiment of the invention, and the method comprises the following steps:
and S21, the application program server of the demand side generates demand information and evaluation rules, and sends the demand information and the evaluation rules to the block link points of the demand side for information distribution.
And S22, the application program server of the demand responder acquires the issued demand information and the evaluation rule from the block chain node, makes a response and sends the response information to the block chain node of the demand responder.
And S23, the application server of the demand side initiates a judgment application to the intelligent contract in the block chain network, wherein the block chain network comprises the block chain node of the demand side and the block chain node of the demand response side.
And S24, automatically judging the intelligent contract according to the judgment rule to obtain a judgment result, and sending the judgment result to the block chain network.
And S25, the application program server of the demand party acquires the judgment result from the block chain point of the demand party, screens the final counter-trade party from the judgment result, and if the counter-trade party is not screened, returns to the step of continuously executing the step of initiating the judgment application to the intelligent contract in the block chain network.
S26, the demander application server determines to select the final counterparty and sends the selection result to the demander blockchain node.
And S27, the blockchain network realizes the information synchronization of the demand party blockchain node and the demand response party blockchain node through a consensus algorithm, and the transaction matching is completed.
The above method is described below using specific examples: in this embodiment, the requesting party is a, the demand responding parties are B, C and D, the demand information of a is the purchasing demand of 100 notebook computers, and the corresponding judgment rule is:
(a) the price is first, the unit is 1 ten thousand yuan or more and 50 minutes, and the unit is 1 ten thousand yuan or less and 60 minutes;
(b) the memory is divided into at least 15 parts from 4G to 6G, and more than 6G and 20 parts from 6G;
(c) the hard disk is divided into at least 15 points of 1T, 2T and below and 20 points of 2T and above.
The demander A generates demand information and a judgment rule through a demander application server and sends the demand information and the judgment rule to the demander block chain nodes for information distribution, and the block chain network realizes information synchronization of each block chain node in the network through a consensus algorithm.
The applications of the three demand responders B, C and D all obtain the notebook computer procurement demands and the evaluation rules issued by the requester application server from the demand responder tile chain nodes. The response messages of respondents B, C and D are:
the responder B: a single unit is 1.1 ten thousand yuan, the memory is 8G, and the hard disk is 4T;
the responder C: a single unit is 0.9 ten thousand yuan, the memory is 4G, and the hard disk is 4T;
the responder D: a single unit of 0.8 ten thousand yuan, a memory of 4G and a hard disk of 1T.
The method comprises the steps that a demander A can initiate judgment application to an intelligent contract in a block chain network at any time through a demander application server, the intelligent contract automatically matches and judges demand information of the demander and response information of a responder according to judgment rules registered in the block chain network, judgment results are sequentially ordered from high to low according to the satisfaction degree of the response information on the demand information, the intelligent contract sends the judgment results to block chain nodes, and the block chain network realizes information synchronization of each block chain node in the network through a consensus algorithm. In this embodiment, the evaluation results of the intelligent contract on the respondents B, C and D are ranked as C: 95 minutes; d: 90 minutes; b: and 90 minutes.
And the demander A acquires the evaluation result executed by the intelligent contract from the block link point of the demander through the demander application server, and screens the final counterparty from the evaluation result. In this embodiment, the demander application server selects the demand responder C as the counterparty from the evaluation result.
And after determining the final transaction counter-party C, the application program server of the demand party sends the result of selecting the transaction counter-party to the block chain nodes of the demand party, and the block chain network realizes the information synchronization of all the block chain nodes in the network through a consensus algorithm. And the selection result is recorded in the block chain network, so that the participant can check the selection result of the demand party at any time, the fairness and the authenticity are ensured, and the transaction matching is completed.
The transaction matching method based on the intelligent contract provided by the embodiment of the invention realizes transaction matching without a third party by adopting a block chain technology, improves the authenticity, fairness and transparency of transactions, and realizes traceability of a transaction matching process.
As shown in fig. 3, a schematic structural diagram of a demanding application server according to a third embodiment of the present invention is shown, and includes a memory and a processor, where the memory is connected to the processor, and the processor is configured to store a computer program, where the computer program includes program instructions, and the processor is configured to call the program instructions to execute the method steps described in the first embodiment.
It should be understood that in the embodiments of the present invention, the Processor may be a Central Processing Unit (CPU), and the Processor may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory may include both read-only memory and random access memory, and provides instructions and data to the processor. The portion of memory may also include non-volatile random access memory. For example, the memory may also store device type information.
The system of the fourth embodiment of the present invention is an apparatus corresponding to the method described in the above second embodiment. Since the apparatus embodiments are substantially similar to the method embodiments, they are described in a relatively simple manner, and reference may be made to some of the descriptions of the method embodiments for relevant points. The device embodiments described below are merely illustrative.
As shown in fig. 4, a schematic structural diagram of a transaction matching system based on an intelligent contract according to a fourth embodiment of the present invention is shown, and includes a demander terminal, a demand responder terminal, a demander application server, and a demand responder application server, where the demander terminal communicates with the demander application server, the demand responder terminal communicates with the demand responder application server, and the demand responder application server generates demand information and evaluation rules, and sends the demand information and the evaluation rules to demand party block link points for information distribution;
the demand responder application server acquires the issued demand information and the evaluation rule from the block link point, makes a response and sends the response information to the demand responder block link point;
a demand side application program server initiates a judgment application to an intelligent contract in a block chain network, wherein the block chain network comprises demand side block chain nodes, demand response side block chain nodes and intelligent contract data;
the intelligent contract automatically judges according to the judgment rule to obtain a judgment result, the judgment result is sent to the block chain network, and the intelligent contract automatically matches and judges the demand information of the demand party and the response information of the response party according to the judgment rule registered in the block chain network to obtain the judgment result; in the embodiment, the judgment results are sorted from high to low according to the satisfaction degree of the response information on the demand information;
the demander application server acquires the judgment result from the demander block chain link point, screens a final counterparty from the judgment result, and returns to continue executing the step of initiating a judgment application to an intelligent contract in the block chain network if the counterparty is not screened;
the application program server of the demand party determines to select a final transaction counter party and sends a selection result to the block chain node of the demand party;
and the block chain network realizes the information synchronization of the block chain nodes of the demand party and the block chain nodes of the demand response party through a consensus algorithm, and the transaction matching is completed.
The above description is provided for the fourth embodiment of the present invention. The intelligent contract-based transaction matching system and the intelligent contract-based transaction matching method provided by the invention have the same inventive concept and the same beneficial effects, and are not repeated herein.
In a fifth embodiment of the present invention, there is provided a computer-readable storage medium storing a computer program comprising program instructions that, when executed by a processor, cause the processor to perform the methods described in the first and second embodiments above.
The computer readable storage medium may be an internal storage unit of the system according to the foregoing embodiment, for example, a hard disk or a memory of a terminal. The computer readable storage medium may also be an external storage device of the terminal, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like provided on the terminal. Further, the computer-readable storage medium may also include both an internal storage unit and an external storage device of the terminal. The computer-readable storage medium is used for storing the computer program and other programs and data required by the terminal. The computer readable storage medium may also be used to temporarily store data that has been output or is to be output.
Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the terminal and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed method, server and system may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may also be an electric, mechanical or other form of connection.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (7)
1. A transaction matching method based on intelligent contracts, which is applicable to a demander application server, and comprises the following steps:
generating demand information and a judgment rule, and sending the demand information and the judgment rule to a block link point of a demand party for information release;
initiating a judgment application to an intelligent contract in a block chain network, wherein the block chain network comprises a demand side block chain node, a demand responder block chain node and an intelligent contract;
acquiring a judgment result sent by the intelligent contract from a block chain point of a demand party, screening a final counter-party for transaction from the judgment result, and if the counter-party for transaction is not selected, returning to continue executing the step of initiating a judgment application to the intelligent contract in the block chain network;
determining to select a final transaction counter-party and sending a selection result to a demand party block chain node;
the method further comprises the following steps: the method comprises the steps that a demander application server generates demand information and evaluation rules, and the demand information and the evaluation rules are sent to a demander block link point for information release;
the demand responder application server acquires the issued demand information and the evaluation rule from the block link point, makes a response and sends the response information to the demand responder block link point;
a demand side application program server initiates a judgment application to an intelligent contract in a block chain network, wherein the block chain network comprises demand side block chain nodes, demand response side block chain nodes and intelligent contract data;
the intelligent contract carries out automatic matching judgment on the demand information of the demand party and the response information of the response party according to a judgment rule registered in the block chain network to obtain a judgment result, and the judgment result is sent to the block chain network;
the demander application server acquires the judgment result from the demander block chain link point, screens a final counterparty from the judgment result, and returns to continue executing the step of initiating a judgment application to an intelligent contract in the block chain network if the counterparty is not screened;
the application program server of the demand party determines to select a final transaction counter party and sends a selection result to the block chain node of the demand party;
and the block chain network realizes the information synchronization of the block chain nodes of the demand party and the block chain nodes of the demand response party through a consensus algorithm, and the transaction matching is completed.
2. The intelligent contract-based transaction matching method according to claim 1, wherein the evaluation results are sorted in order from high to low according to the satisfaction degree of the response information on the demand information.
3. A demanding application server comprising a memory and a processor coupled to the memory, the processor being configured to store a computer program comprising program instructions, wherein the processor is configured to invoke the program instructions to perform the method steps of claim 1.
4. A transaction matching system based on an intelligent contract comprises a demand side terminal, a demand response side terminal, a demand side application server and a demand response side application server, wherein the demand side terminal is communicated with the demand side application server, and the demand response side terminal is communicated with the demand response side application server;
the demand responder application server acquires the issued demand information and the evaluation rule from the block link point, makes a response and sends the response information to the demand responder block link point;
a demand side application program server initiates a judgment application to an intelligent contract in a block chain network, wherein the block chain network comprises demand side block chain nodes, demand response side block chain nodes and intelligent contract data;
the intelligent contract automatically judges according to a judgment rule to obtain a judgment result, and sends the judgment result to a block chain network;
the demander application server acquires the judgment result from the demander block chain link point, screens a final counterparty from the judgment result, and returns to continue executing the step of initiating a judgment application to an intelligent contract in the block chain network if the counterparty is not screened;
the application program server of the demand party determines to select a final transaction counter party and sends a selection result to the block chain node of the demand party;
and the block chain network realizes the information synchronization of the block chain nodes of the demand party and the block chain nodes of the demand response party through a consensus algorithm, and the transaction matching is completed.
5. The intelligent contract-based transaction matching system of claim 4, wherein the specific steps of automatically evaluating intelligent contracts according to evaluation rules to obtain evaluation results comprise:
the intelligent contract carries out automatic matching judgment on the demand information of the demand party and the response information of the response party according to the judgment rule registered in the block chain network to obtain a judgment result.
6. The intelligent contract-based transaction matching system according to claim 4 or 5, wherein the evaluation results are sorted in order of high to low according to the satisfaction degree of the response information with the demand information.
7. A computer-readable storage medium, characterized in that the computer storage medium stores a computer program comprising program instructions which, when executed by a processor, cause the processor to carry out the method steps according to any of claims 1-2.
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