KR20210052349A - Method, system and non-transitory computer-readable recording medium for supporting securities short sale - Google Patents

Abstract

According to one aspect of the present invention, provided is a method for supporting short selling of securities, comprising the steps of: generating irreversible operation information from balance transaction information by referring to the authentication result made by a notary node for the balance transaction information specified by referring to the agreement of loan transaction conditions for the loan of securities made between a lender node and a borrower node; and matching the generated irreversible operation information with short selling order information associated with the balance transaction information.

Description

METHOD, SYSTEM AND NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM FOR SUPPORTING SECURITIES SHORT SALE {Method, SYSTEM AND NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM FOR SUPPORTING SECURITIES SHORT SALE}

The present invention relates to a method, system, and non-transitory computer-readable recording medium for supporting short selling of securities.

Securities lending and borrowing transaction means a securities consumption lending transaction contract that is established by a lender committing to transfer ownership of securities to a borrower, and the borrower committing to return the same amount of securities. When a loan transaction is established, the right to dispose of the securities and the source of income are transferred to the borrower, and the borrower is a counter benefit to the rights that the lender could have received if the loan transaction was not conducted (e.g., dividends in the form of cash or stocks, free stocks, etc.) Paid shares, etc.).

Loan transactions are used to achieve various purposes. Specifically, a short selling transaction, an arbitrage transaction through short selling, and a collateral transaction), a purpose for payment substitute (fail coverage transaction), a purpose to replace the existing loan transaction with a new amount when a request for collection is received (recall coverage transaction), and the amount of the existing loan transaction with a lower fee. It is used for refinancing transactions and for replacing existing loans with more stable loans (replacement transactions).

In most countries, in order for a borrower to short-sell securities, in most countries, the borrower must own the securities borrowed prior to the short selling order. This is the time when the loan is completed or the loan contract for the securities is finalized. Most short sellers place a bid order for the short sell as soon as the lending contract is finalized. When a loan transaction contract is in progress, a loan confirmation that proves that the stock loan transaction contract is finally confirmed through the steps of searching, negotiating, and confirming the stock loan volume. Is generated and transmitted from the lender to the borrower.

On the other hand, at the time of the short sale, a document proving that the stock was owned (i.e., that it has already been borrowed or that a borrowing contract has been established (or, in some cases, holding the securities to be borrowed)), is a statement of the previously mentioned loan transaction statement or a statement of confirmation (borrow). confirmation or securities lending and borrowing confirmation). In the loan confirmation letter, personal information about the lender and the borrower (e.g., the name of the institution, contact information of the institution and person in charge, etc.), matters about the stocks to be lent (borrowed) (e.g., the name of the item, the number of loans, etc.), and the time the contract was concluded (time stamp) and trade date, settlement date, other relevant matters (e.g., whether or not to be recalled in case of stock dividends), and a unique identifier that identifies the firm. If the securities are not borrowed through a loan transaction and a short sale is made without a statement of the loan transaction, this is referred to as “naked short selling” and is strictly prohibited in most countries that allow the short sale.

The loan transaction statement may be replaced with an identifier (hereinafter referred to as "locate ID") such as a locate number or a locate ID. In fact, in the case of high frequency trading trading techniques, it is essential to use a computer-recognizable locator ID rather than an unstructured loan transaction or loan confirmation (borrow confirmation or loan confirmation).

According to the relevant laws and regulations, if a person who intends to sell the borrowed short sale (hereinafter referred to as the "short sale consignor") wishes to settle with the borrowed securities for the borrowed short sale order, the short selling consignor shall purchase the relevant securities prior to the submission of the order. You must have already borrowed or have a loan agreement in place. In this regard, the consignor of the short selling is required from the lender before submitting the borrowing short selling order to prove the borrowing: ① The item and quantity of the loan securities, ② the individual loan transaction fee rate, the contract confirmation date and the individual loan transaction date, and ③ the personal information of the lender (e.g. For example, information such as name, address, and contact information is required to confirm the intention of the rental. In addition, in the case of a short sale order consignee who receives and processes a short sale order from the short sale order consignor, information such as ① the confirmation date, ② the lender, and ③ the payment implementation plan related to the borrowed short sale order are required to be confirmed by the short sale consignor.

However, according to the technology introduced so far, including the conventional business method as described above, there are the following problems.

First, it is possible to alter the balance sheet. In particular, when an audit is conducted on whether or not a borrowed short sale is performed, the information submitted is subjected to at least one formatting and filtering process for the information in accordance with the format required by the financial authorities. This is due to the fact that each institution has a different method of recording information. Even if the relevant information has not been processed in this process, it is almost impossible to check whether the contents of the loan transaction statement (for example, time stamp, quantity, amount, contract date, and conclusion date) have been tampered with. This manipulation can occur during normal loan and short sale transactions, not during the audit process. When a non-borrowing short-selling transaction occurs, it may not be recognized or post-trade, resulting in a serious open-ended situation.

Second, a third-party agency, for example, a commissioned trader, a stock depository, a stock exchange, or a financial supervisory agency that processes orders, clearly determines whether the borrower (or lender) borrows (or lends). There is no way to verify technically through computation. In the process of obtaining confirmation from the short selling consignor whether the short selling consignee has a borrowed short selling or not, it is impossible to clearly verify whether the short selling has been made, and the current short selling consignee has no choice but to process the short selling order by believing only in the claim that the consignor has borrowed. Therefore, even if the locator ID is included in the short sale order details, there is no way to completely verify whether this order is a borrowed short sale based on the pre-borrowed quantity through computer calculation. In addition, this information is stored in a computer database and used when proving the borrowing short sale. The record stored in the database is not irreversible information, and is only a record that can be forged or altered at any time.

Therefore, from the standpoint of a financial supervisory agency that audits whether or not a short sale has been unborrowed, it is difficult to clearly verify whether the consignor of the short sale actually borrowed before the short sale order in accordance with the relevant regulations. If the short selling consignor arbitrarily or accidentally alters his or her record and submits it to the financial authorities, there is no way to verify this. In order to check whether the short selling consignor borrows and whether the lender is lending, the financial authority or the financial authority entrusts the business to a third party (e.g., a securities depository and settlement agency or stock exchange) to collect and manage all loan transaction statements. There may be a plan. However, even in this way, it is difficult to solve the above-mentioned problems. This is because there is no way to clearly prove whether the loan transaction statement has been forged or altered and whether the statement has actually been agreed upon by the borrower and the lender through computer computation. In addition, in the case of a centralized database, there is inevitably the risk of loss, hacking, alteration, damage, damage, etc. of the data, and in this case, the responsibility can be passed on to third parties and financial surveillance and supervisory organizations.

The above-mentioned problems cannot prevent forgery of the lending transaction statement, it is impossible to generate irreversible information on the lending transaction statement, and computer calculations are performed on whether or not the person who made (or intends to) a short sale secures the amount of borrowing before the short sale order. This is due to the limitations of the current technology, which cannot be verified through technical verification.

An object of the present invention is to solve all the problems of the prior art described above.

In addition, the present invention is to detect (detection), prevent (prevention) or eliminate (elimination) the negative short selling (naked short selling) for another object.

In addition, another object of the present invention is to reduce (for example, shorten the proof process) a transaction delay that occurs during a loan transaction or a short sale process.

In addition, the present invention allows the financial supervisory authority to perform real-time auditing, thereby reducing the cost of monitoring and auditing transaction participants (eg, borrowers, lenders, etc.) of the financial supervisory authority. Another purpose is to improve the efficiency of monitoring and auditing.

In addition, another object of the present invention is to reduce the regulatory reporting and compliance costs of transaction participants by enabling real-time reporting of the loan transaction process to a financial monitoring and supervisory authority. .

In addition, another object of the present invention is to ensure the integrity of records related to lending transactions such as generation, transmission, and storage of lending transaction statements between borrowers and lenders, and to generate immutable information. .

A typical configuration of the present invention for achieving the above object is as follows.

According to an aspect of the present invention, as a method of supporting short selling of securities, a notary node with respect to the loan transaction information specified with reference to the agreement of the loan transaction conditions for the loan of securities between the lender node and the borrower node. There is provided a method comprising generating irreversible operation information from the lending transaction information with reference to the authentication result made by, and matching the generated irreversible operation information with short selling order information associated with the lending transaction information. .

According to another aspect of the present invention, as a system that supports short selling of securities, a notary node with respect to the loan transaction information specified with reference to the agreement of the loan transaction conditions for the loan of securities between the lender node and the borrower node. An irreversible operation information management unit that generates irreversible operation information from the loan transaction information with reference to the authentication result made by the lending transaction information, and a short sale order management unit that matches the generated irreversible operation information with the short sale order information associated with the loan transaction information. A system is provided.

In addition to this, another method for implementing the present invention, another system, and a non-transitory computer-readable recording medium for recording a computer program for executing the method are further provided.

According to the present invention, it is possible to reduce the cost of monitoring and auditing a transaction participant of a financial monitoring/supervisory institution, and to improve the monitoring and auditing efficiency.

In addition, according to the present invention, it is possible not only to significantly reduce regulatory risk from the standpoint of a transaction participant, but also to significantly reduce regulatory reporting, compliance, and operation costs.

In addition, according to the present invention, through the creation of a tamperproof loan transaction statement, the borrower and the lender are irreversible borrowing or rental evidence information for the loan transaction history and the loan transaction tracking record that can be proved through a computer algorithm. immutable borrow/loan record).

In addition, according to the present invention, since all transaction details are inherently impossible to alteration, no borrowing short sale is performed by analyzing the time of borrowing, the amount of borrowing, the time of short selling, and the amount of short selling transactions at any time (or in real time). In addition to being able to detect, prevent, or eliminate (naked short selling), it is also possible to verify in real-time whether or not short selling related regulations are violated (real-time auditing).

In addition, according to the present invention, it is possible to guarantee the integrity of the loan transaction information.

1 is a diagram showing a schematic configuration of an entire system supporting short selling according to an embodiment of the present invention.
2 is a diagram showing an exemplary configuration of an entire system supporting short selling according to an embodiment of the present invention.
3 is a diagram showing a conventional method in which a short sale order is entrusted without a notarization process for a loan transaction.
4 is a diagram illustrating a process of allowing the trustee of the short selling order to verify whether or not the short selling order has been borrowed by including irreversible operation information in the short selling electronic instruction when entrusting a short selling order according to an embodiment of the present invention.
5 is an illustration of a process in which irreversible calculation information is included in a loan transaction instruction for execution of a loan transaction according to an embodiment of the present invention, so that a loan brokerage agency, an exchange, or a financial supervisory authority can verify whether a borrowing is short-selling. It is a figure shown as an example.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The detailed description of the present invention described below refers to the accompanying drawings, which illustrate specific embodiments in which the present invention may be practiced. These embodiments are described in detail sufficient to enable a person skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention are different from each other, but need not be mutually exclusive. For example, specific shapes, structures, and characteristics described in the present specification may be changed and implemented from one embodiment to another without departing from the spirit and scope of the present invention. In addition, it should be understood that the position or arrangement of individual elements in each embodiment may be changed without departing from the spirit and scope of the present invention. Accordingly, the detailed description to be described below is not made in a limiting sense, and the scope of the present invention should be taken as encompassing the scope claimed by the claims of the claims and all scopes equivalent thereto. Like reference numerals in the drawings indicate the same or similar elements over several aspects.

The term securities referred to in this specification refers to a certificate indicating the right to claim for valuable items such as certain money or cargo in advance, that is, a certificate indicating property rights under commercial law, and the securities referred to in this specification are It is not necessarily limited to securities stipulated by the Commercial Act or Securities Exchange Act, but should be understood in the broadest sense encompassing all types of objects that may be subject to Securities Lending and Borrowing Transactions. For example, the securities referred to in this specification include listed stocks, unlisted stocks, bonds, beneficiary securities, underwriting rights, financial instruments including beneficiary securities, futures, derivatives including equity swaps, ELS. (Stock-Linked Securities), ELW (Equity-Linked Warrant), ETN (Exchange Traded Note), BW (Bond with Warrant), CB (Convertible Bond, Convertible Bond) and ETF (Exchange Traded Funds) can all be included.

Hereinafter, various preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings in order to enable those of ordinary skill in the art to easily implement the present invention.

1 is a diagram showing a schematic configuration of an entire system supporting short selling according to an embodiment of the present invention.

2 is a diagram showing an exemplary configuration of an entire system supporting short selling according to an embodiment of the present invention.

As shown in FIG. 1, the entire system according to an embodiment of the present invention may include a communication network, a plurality of nodes 100, and a securities trading system 200.

First, a communication network according to an embodiment of the present invention may be configured regardless of a communication mode such as wired communication or wireless communication, and a local area network (LAN), a metropolitan area network (MAN), and a wide area communication network may be configured. It may be composed of various communication networks such as a wide area network (WAN). Preferably, the communication network referred to in the present specification may be a publicly known Internet or World Wide Web (WWW). However, the communication network is not necessarily limited thereto, and may include a known wired/wireless data communication network, a known telephone network, or a known wired/wireless television communication network in at least part thereof.

For example, the communication network is a wireless data communication network, such as WiFi communication, WiFi-Direct communication, Long Term Evolution (LTE) communication, Bluetooth communication (for example, low power Bluetooth (BLE; Bluetooth)). Low Energy) communication), infrared communication, ultrasonic communication, and the like may be implemented in at least part of a conventional communication method.

Next, a plurality of nodes 100 according to an embodiment of the present invention (node) is a contact point or connection point capable of communicating with other nodes 100 through a communication network, a server, a computer, a laptop, a smart phone, a tablet PC. Etc. (i.e., a digital device equipped with a memory means and equipped with a microprocessor and capable of computing) or a logical node by an application, a program module, a virtual machine, etc. (i.e., a virtual node) It may be a concept including ).

Meanwhile, in the plurality of nodes 100 according to an embodiment of the present invention, a short selling support system supporting short selling of securities according to the present invention may be installed or included in the form of a program module such as an application or a widget. In addition, such a program module may be downloaded from an external application distribution server (not shown) or an external system (not shown). If necessary, the above short selling support system may be operated based on Distributed Ledger Technology (DLT). The distributed ledger here may mean a method in which rental transaction information or short sale order information occurring between two party nodes is encrypted or irreversible, and distributedly recorded and managed by two parties (or other parties). It may be a concept that includes a kind of private type of blockchain managed by the nodes of the two parties in the form of a block chain in which the information determined by consensus is reached.

In addition, referring to FIG. 2, according to an embodiment of the present invention, in the plurality of nodes 100 above, the lender node 110, the borrower node 120, the notary node 130, Nodes of various types of participants related to short sale transactions, such as time validator node and short sale verification node (e.g., regulator node, mediator node, broker node, depository node, asset manager node, prime brokerage node, etc.) ) May be included.

The above short selling support system according to an embodiment of the present invention relates to the loan transaction information specified with reference to the agreement of the loan transaction conditions for the loan of securities between the lender node 110 and the borrower node 120. It performs a function of generating irreversible operation information from the loan transaction information with reference to the authentication result made by the notary node 130, and matching the generated irreversible operation information with the short selling order information associated with the above loan transaction information. I can.

In addition, the short selling support system according to an embodiment of the present invention, in order to generate the above irreversible operation information, a predetermined hash function (for example, a message digest calculation algorithm (MD5; Message-Digest Algorithm 5)), a hash operation, a cryptographic algorithm, and other known irreversible transformation or non-repudiation techniques can be used.

The configuration and function of the short selling support system according to the present invention will be described in detail through the following detailed description. On the other hand, the short sale support system has been described as above, but this description is illustrative, and at least some of the functions or components required for the short sale support system are required, and a plurality of nodes 100 (e.g., a lender node 110, a borrower node 120, a notary node 130) or a plurality of nodes 100 (e.g., a lender node 110, a borrower node 120) or realized within an external system (not shown). ), a notary node 130), or may be included in an external system. For example, a user according to an embodiment of the present invention uses an application including at least some of the functions of the short selling support system according to the present invention at his node, or at least among the functions of the short selling support system according to the present invention. By accessing a website that provides some of the securities, it is possible to lend or borrow securities according to the present invention, or place a short sale order for the borrowed or borrowed securities.

Next, when the securities trading system 200 according to an embodiment of the present invention is provided with information on a short selling order of at least one securities, selling the securities borrowed by the borrower in response to the short selling order ( That is, it may perform a function of placing an order for short selling) or allowing the selling order to be concluded through another buyer. The information on the short selling order provided to the securities trading system 200 may include irreversible computational information (for example, information that has been notarized by irreversible locator ID discussed above), and the corresponding securities trading system ( In 200), a verification process for non-borrowing short selling may be performed based on such irreversible operation information. For example, the securities trading system 200 according to an embodiment of the present invention includes a conventional stock exchange (e.g., New York Stock Exchange, Tokyo Stock Exchange), Korea It may be similar to a system operated by a stock exchange (Korea Stock Exchange).

Composition of short selling support system

Hereinafter, functions of each component of the short selling support system that perform important functions for the implementation of the present invention will be described.

According to an embodiment of the present invention, the short selling support system may include an irreversible operation information management unit, a short selling order information matching unit, and a verification management unit. According to an embodiment of the present invention, at least some of the irreversible operation information management unit, short sale order information matching unit, and verification management unit may be a program module that communicates with an external system. Such a program module may be included in the short selling support system in the form of an operating system, an application program module, or other program module, and may be physically stored in various known storage devices. Further, such a program module may be stored in a remote storage device capable of communicating with the short selling support system. Meanwhile, such a program module includes routines, subroutines, programs, objects, components, data structures, etc. that perform specific tasks or execute specific abstract data types according to the present invention, but is not limited thereto.

First, the irreversible operation information management unit according to an embodiment of the present invention specifies the loan transaction information with reference to the agreement of the loan transaction conditions for the loan of securities between the lender node 110 and the borrower node 120, It is possible to perform a function of generating irreversible operation information from the above loan transaction information by referring to the authentication result made by the notary node 130 for the loan transaction information. The above loan transaction conditions according to an embodiment of the present invention include the types of securities the lender wants to lend, the types of securities the lender wants to lend, the quantity of securities the lender wants to lend, the loan fee rate, the contract date, and the date of conclusion. , Dividend, rights relationship, recall, and information on at least one of the personal information of the lender (or borrower) may be included. In addition, according to an embodiment of the present invention, the above loan transaction information is transaction information related to a loan transaction made between the lender node 110 and the borrower node 120 (for example, such transaction information includes a loan transaction. Based on this, information related to the short selling order requested from the short selling order consignment agency may be included).

For example, according to an embodiment of the present invention, each private key (i.e., the lender node 110) with respect to the loan transaction conditions of securities mutually accepted or approved by the lender node 110 and the borrower node 120 And by being signed through the private key of the borrower node 120), agreement on the above loan transaction conditions can be performed, and the irreversible operation information management unit is based on the information on the above loan transaction conditions (for example, Lending transaction information can be generated (or specified) by irreversibly calculating information on the terms of the lending transaction.

In addition, the irreversible computation information management unit according to an embodiment of the present invention may generate irreversible computation information from the above lending transaction information by referring to the authentication result made by the notary node 130 for the above lending transaction information. . On the other hand, it is assumed that authentication by the notary node 130 is performed only when an agreement between the lender node 110 and the borrower node 120 is performed (for example, when each electronic signature exists). May be.

For example, as an electronic signature is made through the private key of the notary node 130 for the above lending transaction information, the above lending transaction information may be authenticated, and the irreversible operation information management unit is the above lending transaction. It is possible to generate irreversible operation information by performing an irreversible operation based on the information and information on the authentication result of the notary node 130 (for example, information on the notary's electronic signature, information on the notarization time, etc.). have.

On the other hand, the above authentication according to the present invention is not necessarily limited only to being performed after an agreement between the lender node 110 and the borrower node 120 is made, and in the process of consensus on the terms of the loan transaction, the lender node 110 ), by allowing the borrower node 120 and the notary node 130 to agree together, authentication by the notary node 130 may be made in advance during the consensus process.

For example, according to an embodiment of the present invention, each private key ( That is, by signing through the lender node 110, the borrower node 120, and the private key of the notary node 130), agreement and authentication regarding the above loan transaction conditions can be performed, and the irreversible operation information management unit It is possible to generate irreversible operation information based on the loan transaction information on the above loan transaction conditions (such loan transaction information may include information on the authentication result such as an electronic signature of the notary node 130).

Meanwhile, the irreversible operation information management unit according to an embodiment of the present invention refers to at least one of a nonce and a predetermined private key to prevent decryption of the irreversible operation. Can generate information. The nonce value and the private key value according to an embodiment of the present invention are determined by agreement between the lender node 110, the borrower node 120, and the notary node 130, or the corresponding loan transaction information (or loan transaction condition). ), or may be a randomly generated value.

For example, the irreversible computation information management unit according to an embodiment of the present invention may generate the above irreversible computation information based on a value calculated after a predetermined computation of the above balance transaction information together with a nonce value.

In addition, the irreversible operation information management unit according to an embodiment of the present invention may further include time validation regarding a time at which at least one of the loan transaction information and the irreversible operation information is generated in the irreversible operation information.

For example, the irreversible operation information management unit according to an embodiment of the present invention is a node, a notary node 130, a borrower node that is preset to have a predetermined public confidence (for example, public confidence regarding time validation) By at least one of the node designated by 120 and the node designated by the lender node 110, information about the time at which the loan transaction information or the irreversible calculation information is generated can be authenticated. Authentication information can be included in the above irreversible operation information. According to an embodiment of the present invention, the above authentication is a node designated by a node that is preset to have the above public trust, a notary node 130, a node designated by the borrower node 120, and a node designated by the lender node 110 By being signed with at least one of the private keys, the time-related information may be authenticated.

Next, the short selling order information matching unit according to an embodiment of the present invention may perform a function of matching the generated irreversible operation information with the short selling order information associated with the above loan transaction information. For example, according to an embodiment of the present invention, the above short sale order information is electronic short sale instruction information provided to a short sale order consignment agency or an exchange for a short sale order based on the above loan transaction information. It may be a concept including

For example, the short selling order information matching unit according to an embodiment of the present invention corresponds to the short selling order information based on the above lending transaction information, and the above irreversible operation information (also, algorithm information related to the above irreversible operation) ) Can be specified.

In addition, the short sale order information matching unit according to an embodiment of the present invention includes the matched irreversible calculation information (also algorithm information related to the above irreversible calculation) in the short sale order information associated with the above loan transaction information, or It can be tagged. In this case, according to an embodiment of the present invention, the above irreversible operation information (also, algorithm information related to the above irreversible operation) is the above short selling order information (specifically, short selling electronic information that can be used when placing a short selling order). It can be tagged on an electronic short sale instruction and communicated through an Order Management System (OMS) that connects the short seller and the short seller trustee.

Next, the verification management unit according to an embodiment of the present invention may perform a function of verifying whether a non-borrowed (or borrowed) short sale by comparing short selling order information and loan transaction information associated with the short selling order information.

For example, the verification management unit according to an embodiment of the present invention determines whether the quantity of the short selling order included in the short selling order information is less than or equal to the borrowed quantity of the loan transaction information associated with the corresponding short selling order information, and the above short selling order information. Whether the short sale order amount included in is less than or equal to the borrowing amount of the above loan transaction information, and the order submission date included in the above short sale order information is the same or later than the loan transaction confirmation date specified in the above loan transaction information. It is possible to verify whether the short sale is non-borrowed (or borrowed) based on at least one of whether or not the name of the securities included in the short sale order information and the name of the securities in the above lending transaction information match.

In addition, the verification management unit according to an embodiment of the present invention verifies the integrity of the loan transaction information associated with the short selling order information based on irreversible operation information matching the short selling order information (also algorithm information related to the irreversible operation). You can do it. An algorithm associated with an irreversible operation according to an embodiment of the present invention may include an algorithm for generating irreversible operation information.

For example, the verification management unit according to an embodiment of the present invention may allow the integrity of the loan transaction information to be verified based on whether authentication for a time at which irreversible calculation information matching the short sale order information is generated is valid. More specifically, the verification management unit according to an embodiment of the present invention authenticates the above using the public key of the node (eg, the notary node 130) that has performed the authentication for the above time. By decrypting the signature for, it is possible to verify whether the corresponding authentication is a valid authentication, and through this, the integrity of the loan transaction information may be verified.

For another example, the verification management unit generates irreversible computation information by irreversible computation of the loan transaction information and notarized information (eg, the notary's electronic signature) based on an algorithm associated with an irreversible computation matched with the short selling order information, By comparing and analyzing this with irreversible operation information matching the corresponding short selling order information, the integrity of the loan transaction information associated with the corresponding short selling order information may be verified.

3 is a diagram showing a conventional method in which a short sale order is entrusted without a notarization process for a loan transaction.

4 is a diagram illustrating a process of allowing the trustee of the short selling order to verify whether or not the short selling order has been borrowed by including irreversible operation information in the short selling electronic instruction when entrusting a short selling order according to an embodiment of the present invention.

FIG. 5 is an illustration of a process in which irreversible calculation information is included in a loan transaction instruction for execution of a loan transaction according to an embodiment of the present invention so that a loan brokerage agency, an exchange, or a financial supervisory authority can verify whether a borrowing is short-selling. It is a drawing shown

4 and 5, a situation in which short selling is supported based on a distributed ledger according to an embodiment of the present invention is shown. For example, according to an embodiment of the present invention, the agreement between the lender node 110, the borrower node 120, and the notary node 130 is made based on a smart contract supported by the distributed ledger network. Can be.

First, according to an embodiment of the present invention, the loan transaction information may be specified by referring to the agreement of the loan transaction conditions for the loan of securities between the lender node 110 and the borrower node 120.

Then, according to an embodiment of the present invention, irreversible operation information may be generated from the loan transaction information with reference to the authentication result made by the notary node 130 for the above loan transaction information.

For example, electronically signing the loan transaction information specified by referring to the agreement of the loan transaction conditions for the loan of securities between the lender node 110 and the borrower node 120 with the private key of the notary node 130 May be, and the above irreversible operation information may be generated based on the information on the electronic signature and the above loan transaction information.

Meanwhile, the borrower node 120 according to an embodiment of the present invention is authenticated by a time validator node or a node designated by the borrower node 120 with respect to the time at which irreversible computation information is generated. (For example, authentication through an electronic signature), and the authenticated time information may be included in the above irreversible operation information (Time-Validated Message Digest).

For another example, the lender node 110 according to an embodiment of the present invention may perform authentication (eg, authentication through an electronic signature) on the time at which the irreversible operation information is generated, and the authenticated time Information can be included in the above irreversible operation information (Lender Issued Time-Validated Message Digest).

Then, according to an embodiment of the present invention, the above irreversible computation information (the information may include the above authenticated time information) and algorithm information associated with the irreversible computation are associated with the above balance transaction information. Even short selling that is made may be matched with order information. For example, according to an embodiment of the present invention, an order system (OMS) that is tagged (or included) in an electronic short sale instruction that can be used when ordering a short sale to connect a short sale consignor and a short sale consignee (OMS ; Order Management System).

Meanwhile, the short sale verification node 140 (or the securities trading system 200) according to an embodiment of the present invention compares and analyzes the above short sale order information and the loan transaction information associated with the above short sale order information. In addition, it is possible to verify whether or not short selling without borrowings. In addition, the short selling verification node 140 according to an embodiment of the present invention is based on at least one of the above irreversible computation information matching the above short selling order information and algorithm information associated with the above irreversible computation. You can verify the integrity of the information.

In the above, although the non-borrowing short sale verification method according to the present invention has been mainly described with respect to an embodiment in which post-mortem verification is performed, the present invention is not necessarily limited to the post-validation, and within the scope of achieving the object of the present invention, prior Alternatively, it should be noted that verification may be performed in real time.

The embodiments according to the present invention described above may be implemented in the form of program instructions that can be executed through various computer components and recorded in a computer-readable recording medium. The computer-readable recording medium may include program instructions, data files, data structures, and the like alone or in combination. The program instructions recorded on the computer-readable recording medium may be specially designed and configured for the present invention or may be known and usable to those skilled in the computer software field. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks and magnetic tapes, optical recording media such as CD-ROMs and DVDs, magnetic-optical media such as floptical disks. medium), and a hardware device specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those produced by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like. The hardware device can be changed to one or more software modules to perform the processing according to the present invention, and vice versa.

In the above, the present invention has been described by specific matters such as specific elements and limited embodiments and drawings, but this is provided only to aid in a more general understanding of the present invention, and the present invention is not limited to the above embodiments. Anyone with ordinary knowledge in the technical field to which the invention pertains can make various modifications and changes from these descriptions.

Accordingly, the spirit of the present invention is limited to the above-described embodiments and should not be defined, and all ranges equivalent to or equivalently changed from the claims to be described later as well as the claims to be described later are the scope of the spirit of the present invention. It will be said to belong to.

100: multiple nodes
110: lender node
120: borrower node
130: notary node
140: Short Sale Verification Node
200: securities trading system

Claims (7)

As a way to support short selling of securities,
Generate irreversible calculation information from the loan transaction information by referring to the authentication result made by the notary node for the loan transaction information specified by referring to the agreement of the loan transaction conditions for the loan of securities between the lender node and the borrower node. And
Comprising the step of matching the generated irreversible operation information with short selling order information associated with the loan transaction information
Way. The method of claim 1,
In the irreversible operation information generating step, generating the irreversible operation information by referring to at least one value of a nonce for preventing decryption and a predetermined private key.
Way. The method of claim 1,
To verify the integrity of the loan transaction information based on irreversible operation information matched with the short selling order information
Way. A non-transitory computer-readable recording medium for recording a computer program for executing the method according to claim 1. As a system that supports short selling of securities,
Generate irreversible calculation information from the loan transaction information by referring to the authentication result made by the notary node for the loan transaction information specified by referring to the agreement of the loan transaction conditions for the loan of securities between the lender node and the borrower node. An irreversible operation information management unit, and
Comprising a short selling order management unit matching the generated irreversible operation information to the short selling order information associated with the loan transaction information
system. The method of claim 5,
The irreversible operation information management unit generates the irreversible operation information by referring to at least one value of a nonce and a predetermined private key for preventing decryption.
system. The method of claim 5,
The short selling order management unit allows the integrity of the loan transaction information to be verified based on irreversible operation information matched with the short selling order information.
system.

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