TWI794444B - Offering and trading system for security token and method thereof - Google Patents

Abstract

An offering and trading system for security token and method thereof is disclosed. By transmitting an offering request with an issue quantity from an entrusting host to an offering host, and transmitting a fundraising request with an issuance information and a financial statement from the entrusting host to an exchange host, so as to generate a plurality of tokens according to the issue quantity. After passing the review of the financial statement, the exchange host generates a wallet account for trading the token, and then the offering host deposits all generated token into the wallet account of the exchange host, so that the token can be traded on the market. The mechanism is help to improve the convenience of the security token’s issuance and on market.

Description

Security Token Issuance Trading System and Method

The invention relates to an issuing and trading system and its method, in particular to a security token issuing and trading system and its method.

In recent years, with the popularization and vigorous development of financial technology (Fintech), various related applications have sprung up, among which Initial Coin Offering (ICO) has attracted the most attention.

Generally speaking, "initial coin offering" refers to the way of using blockchain (Blockchain) to combine rights with issued tokens (Token) in order to finance the products or services provided. The difference between Ethereum is that the latter has its own independent blockchain, while the former is built on and runs on an existing blockchain. For example, the Ethereum blockchain uses Ethereum, but here The blockchain can also use standards such as ERC20, ERC721, and ERC1400 to establish various tokens that run on the blockchain with smart contracts. Basically, ICO is derived from the concept of Initial Public Offering (IPO) in the securities industry. However, due to the lack of supervision of ICO, unlike IPO, it needs to meet many regulations and conditions such as issuance conditions, regulatory requirements, and information leaks. , so it is easy to become a tool for fraud, money laundering or illegal transactions.

In view of this, some manufacturers have proposed the technology of Security Token Offering (STO), which is linked to assets (such as shares, cash, real estate, etc.), and is publicly issued under a legal and compliant regulatory framework , Even investors need to pass Know Your Customer (KYC) / Anti-Money Laundering (Anti-Money Laundering, AML) certification to conduct transactions. Among them, KYC refers to obtaining customer identification information; AML is to prevent customers from obtaining money through illegal transactions. However, the traditional STO issuance and listing process lacks effective integration, so there is a problem of poor convenience for issuance and listing.

To sum up, it can be seen that the prior art has long had the problem of inconvenient issuance and listing of security tokens. Therefore, it is necessary to propose improved technical means to solve this problem.

The invention discloses a security token issuing and trading system and its method.

Firstly, the present invention discloses a security token issuing and trading system, which includes: entrusting host, issuing host, investing host and exchange host. Wherein, the entrusting end host is used to transmit the issuance request including the number of issuances, and the fundraising request including the basic issuance information and financial statements, and after receiving the listing notice, transmit the deposit request including the first wallet account; The issuer host is used to generate a plurality of tokens according to the issued quantity after receiving the issuance request, and deposit all generated tokens into the first wallet account after receiving the deposit request; the investment end host is used to After KYC/AML verification, trade tokens with the second wallet account used to trade tokens.

As for the part of the exchange host, this exchange host includes: review module and transaction module. Wherein, the review module is used to issue basic information and financial reports after receiving the fundraising request. The table is reviewed, and after the review, text recognition is performed on the review result to determine whether it contains the keyword representing the qualified review. When the keyword exists, the first wallet account for trading tokens is established, and the first The listing of the wallet account is notified to the entrusting host; and the transaction module is used to calculate the issuance price of each token according to the financial statement after detecting that the token is deposited into the first wallet account, and allows investment through KYC/AML certification The end host uses the second wallet account to trade tokens. When the investment end host detects the transaction amount of legal currency or digital currency, it calculates the corresponding number of tokens based on the transaction amount and issue price, and the number of tokens is sufficient. During the transaction, the calculated amount of tokens is deposited from the first wallet account into the second wallet account.

In addition, the present invention discloses a method for issuing and trading security tokens, which is applied in a network environment with entrusting end hosts, issuing end hosts, investment end hosts, and exchange hosts. The issuance request is sent to the issuer host, so that the issuer host generates multiple tokens according to the number of issuances; the entrusting host sends the fundraising request including the basic issuance information and financial statements to the exchange host; the exchange host issues the basic information and financial statements Conduct a review, and after the review, conduct text recognition on the review result to determine whether it contains a keyword that represents the review. When this keyword exists, the exchange host will establish the first wallet account for trading tokens, and send The listing notification including the first wallet account is sent to the client host; after receiving the listing notification, the client host sends a deposit request including the first wallet account to the issuer host, so that the issuer host deposits all generated tokens into the second One wallet account; after the token is deposited into the first wallet account, the exchange host calculates the issuance price of each token according to the financial statement, and allows the KYC/AML-certified investment host to use the second wallet for trading tokens Account transaction tokens; and when the exchange host detects the transaction amount of legal currency or digital currency remitted by the investment terminal host, calculate the corresponding number of tokens based on the transaction amount and issue price coins, and when the amount of tokens is sufficient for the transaction, the calculated amount of tokens is deposited from the first wallet account into the second wallet account.

The system and method disclosed in the present invention are as above, and the difference from the prior art is that the present invention transmits the issue request including the issue quantity to the issue host through the entrusting host, and transmits the fundraising request including the basic issue information and financial statements to the transaction Exchange host, so that the issuer host can generate tokens according to the number of issuances, and the exchange host can establish a wallet account for trading the tokens after passing the financial statement review, and then the issuer host will transfer all generated tokens Deposit into the wallet account of the exchange host, complete the listing of tokens and allow trading of tokens.

Through the above-mentioned technical means, the present invention can achieve the technical effect of improving the convenience of issuance and listing of security tokens.

110: Delegating host

120: issuer host

130:Investment host

140: exchange host

150: Network

300: Release window

311: security token name input block

312: Quantity input block

313: Apply for component issuance

410: Transaction window

411: Subscription quantity input block

412: Subscription components

420: Confirm window

421: source address

422: destination address

Step 210: The client host sends an issuance request including an issue quantity to the issue host, so that the issue host generates multiple tokens according to the issue quantity

Step 220: The entrusting host sends a fundraising request including a basic issue information and a financial statement to the exchange host

Step 230: The exchange host reviews the issuance basic information and the financial statement, and after passing the review, the exchange host establishes a first wallet account for trading the tokens, and transmits the first wallet account containing the first wallet account. A listing notification of a wallet account to the entrusting host

Step 240: After receiving the listing notification, the entrusting host sends a deposit request including the first wallet account to the issuing host, so that the issuing host deposits all generated tokens into the first wallet account. wallet account

Step 250: After the token is deposited into the first wallet account, the exchange host calculates an issue price of each token according to the financial statement, and allows the investment terminal host that has passed the KYC/AML certification to be used for A second wallet account that trades the tokens trades the tokens

Step 260: When the exchange host detects a transaction amount of legal currency or digital currency remitted by the investment terminal host, calculate the corresponding amount of tokens according to the transaction amount and the issue price, and in the When the amount of tokens is sufficient for the transaction, deposit the calculated amount of tokens from the first wallet account into the second wallet account

Figure 1 is a system block diagram of the issuance and trading system of security tokens of the present invention.

Figure 2 is a flow chart of the method for issuing and trading security tokens of the present invention.

Fig. 3 is a schematic diagram of application of the present invention for issuing security tokens.

Figure 4 is a schematic diagram of the application of the present invention to trade security tokens.

The implementation of the present invention will be described in detail below in conjunction with the drawings and examples, so as to fully understand and implement the implementation process of how the present invention uses technical means to solve technical problems and achieve technical effects.

Before explaining the issuance and trading system and method of security tokens disclosed in the present invention, the terms defined in the present invention will be described first. The first wallet account mentioned in the present invention refers to the transaction token provided by the exchange host. Account, assuming that 100,000 tokens are issued, at the beginning, there will be 100,000 tokens in the first wallet account for investors to purchase; the second wallet account refers to the wallet account used by investors to trade tokens, that is, In other words, the first wallet account and the second wallet account can transfer tokens through blockchain transactions; the third wallet account refers to the investor's legal currency (such as: New Taiwan dollar, US dollar, etc.) or digital currency (such as: Bitcoin Coin, Ethereum, etc.) wallet account can trade with the second wallet through the exchange, but cannot directly trade with the first wallet account or the second wallet account.

The following is a further description of the security token issuance and trading system and its method of the present invention in conjunction with the drawings. Please refer to "Fig. 1" first. "Fig. 1" is a system block diagram of the security token issuance and transaction system of the present invention. , this system includes: entrusting end host 110, issuing end host 120, investment end host 130 and exchange host 140, these hosts are connected to each other through a network 150, and can use computer devices such as personal computers, notebook computers, servers, etc. accomplish. Among them, the entrusting host 110 is used to transmit the issuance request including the number of issuances, and the fundraising request including the basic information of the issuance and financial statements, and after receiving the listing notice, transmit the deposit request including the first wallet account, wherein , the number of issuances can be positively correlated with the number of shares or the amount of dividends distributed by surplus; the basic information of the issuance can include the number of issuances, amount, token rights, smart contracts, etc. For example, assuming that the number of shares is 1 million, the number of tokens issued can also be 1 million or multiples thereof.

The issuer host 120 is configured to generate multiple tokens according to the issued quantity after receiving the issuance request, and deposit all generated tokens into the first wallet account after receiving the deposit request. In actual implementation, the issuer host 120 can pre-publish a smart contract on the blockchain. This smart contract allows the corresponding number of tokens to be generated according to the issued quantity, and allows the entrusting host 110 to transmit information including the amount of destruction or Increase the number of adjustment requests to delete the corresponding number of tokens according to the number of burnt, or increase the corresponding number of tokens according to the increased number, for example, the increased amount can be set according to the amount of dividends distributed by the surplus, so that it can be generated through smart contracts corresponding amount of tokens. In this way, the purpose of capital increase, capital reduction or surplus distribution can be realized.

The investment terminal host 130 is used to trade tokens with the second wallet account used for trading tokens after passing the KYC/AML authentication. In actual implementation, when the investment host 130 registers with the exchange host, it will execute the KYC/AML authentication procedure, and only after passing the authentication will it allow trading tokens, that is, if it has not passed the KYC/AML authentication procedure Delegates are not eligible to trade this token and cannot trade tokens.

The exchange host 140 includes: a review module 141 and a transaction module 142 . Wherein, the review module 141 is used to review the basic information and financial statements of the issue after receiving the fundraising request, and after the review is passed, establish the first wallet account for trading tokens, and transmit the first wallet account containing the second A notification of listing of a wallet account is sent to the entrusting host. In actual implementation, when the exchange host 140 detects a sell request from the investment host 130, it can calculate the transaction amount based on the selling quantity included in the sell request and the current transaction price of the token, so that the transaction The exchange host 140 remits legal currency or digital currency equivalent to the transaction amount to the third wallet account of the investment host 130, and transfers the sold tokens from the second wallet account to the first wallet account. In addition, the review of the basic information and financial statements by the exchange host is to provide the basic information and financial statements to the review agency, accountants and lawyers for review. When the standard document obtains keywords (for example: "approved" or similar words), it is deemed that the review result is qualified and a first wallet account dedicated to the transaction of this token is established. For example, when the review result is qualified, the review module 141 of the exchange mainframe 140 will receive the enable signal triggered by the review agency, accountants and lawyers, otherwise it is unqualified If the disabling signal is received, whether it is qualified or not can be judged by the received enabling signal or disabling signal, or the standard documents containing the examination results replied by the examination authority, accountants and lawyers can be identified through text recognition technology. If there is approval or similar words in the examination result column in the standard document, it will be judged as qualified and the first wallet account will be established; otherwise, it will be judged as unqualified and the establishment of the first wallet account will be cancelled. In particular, the token transfer between the first wallet account and the second wallet account is realized through the blockchain network and its smart contracts.

The transaction module 142 is used to calculate the issuance price of each token according to the financial statement after detecting that the token is deposited into the first wallet account, and allow the investment terminal host 130 that has passed the KYC/AML certification to use the second wallet account to trade the token currency, when the transaction module 142 detects the transaction amount of legal currency or digital currency remitted by the investment terminal host 130, it calculates the corresponding number of tokens according to the transaction amount and issue price, and when the number of tokens is sufficient for the transaction, it will The calculated amount of tokens is deposited from the first wallet account into the second wallet account. In actual implementation, each token can be regarded as a share, so the way to calculate the issue price can be the same as the way to calculate the issue price of stocks, for example: multiply the after-tax profit per share according to the financial statement by the issue price-earnings ratio.

In particular, it should be noted that in actual implementation, each module described in the present invention can be implemented in various ways, including software, hardware or any combination thereof. For example, in some implementations, each module can be Use software and hardware or one of them to realize. In addition, the present invention can also be realized based on hardware partly or completely. For example, one or more modules in the system can be realized through integrated circuit chips, System on Chip (System on Chip, SoC), Complex Programmable Logic Device (Complex Programmable Logic Device, CPLD), Field Programmable Gate Array (Field Programmable Gate Array, FPGA) and so on. The present invention can be a system, method and/or computer program. The computer program may include a computer-readable storage medium loaded with various methods for causing the processor to implement the present invention. For computer-readable program instructions, a computer-readable storage medium may be a tangible device that can hold and store instructions for use by an instruction execution device. A computer readable storage medium may be, but is not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples (non-exhaustive list) of computer-readable storage media include hard disks, random access memory, read-only memory, flash memory, optical disks, floppy disks, and any suitable combination of the foregoing. As used herein, computer-readable storage media are not to be construed as transient signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., optical signals through fiber optic cables), or transmitted electrical signals. In addition, the computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to each computing/processing device, or downloaded over a network, such as the Internet, a local area network, a wide area network, and/or a wireless network to an external computer device or external storage device. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, hubs and/or gateways. The network card or network interface in each computing/processing device receives computer-readable program instructions from the network, and forwards the computer-readable program instructions for storage in computer-readable storage media in each computing/processing device middle. The computer program instructions for performing the operations of the present invention may be assembly language instructions, instruction set architecture instructions, machine instructions, machine-related instructions, micro instructions, firmware instructions, or source code or object code written in any combination of one or more programming languages (Object Code), the programming language includes object-oriented programming language, such as: Common Lisp, Python, C++, Objective-C, Smalltalk, Delphi, Java, Swift, C#, Perl, Ruby and PHP, etc., as well as conventional programs Procedural programming language, such as: C language or similar programming language. Computer readable program instructions may be executed entirely on the computer, partly on the computer, as a stand-alone software, partly on the client computer and partly on the remote computer, or entirely on the remote computer or server to execute.

Please refer to "Fig. 2", "Fig. 2" is a flow chart of the issuance and transaction method of security tokens of the present invention, which is applied to a host with entrusting end host 110, issuing end host 120, investment end host 130 and exchange host In the network environment of 140, the steps include: the entrusting host 110 transmits an issuance request including the issued quantity to the issuing host 120, so that the issuing host 120 generates a plurality of tokens according to the issued quantity (step 210); the entrusting host 110 Send the fund-raising request that includes issuing basic information and financial statements to the exchange host 140 (step 220); the exchange host 140 examines the issuance of the basic information and financial statements, and after the examination is qualified, the exchange host 140 establishes a The first wallet account of the transaction token, and send the listing notification including the first wallet account to the entrusting end host 110 (step 230); after receiving the listing notice, the entrusting end host 110 sends the deposit request including the first wallet account to The issuer host 120 makes the issuer host 120 deposit all generated tokens into the first wallet account (step 240); the exchange host 140 calculates the value of each token according to the financial statements after the tokens are deposited into the first wallet account. Issue price, and allow the investment-end host 130 certified by KYC/AML to trade tokens with the second wallet account for trading tokens (step 250); when the exchange host 140 detects that the investment-end host 130 imports legal currency or the transaction amount of digital currency, calculate the corresponding number of tokens according to the transaction amount and issue price, and when the amount of tokens is sufficient for the transaction, deposit the calculated amount of tokens from the first wallet account to the second wallet account (step 260). Through the above steps, the entrusting host 110 can send the issuance request including the number of issues to the issuing host 120, and send the fundraising request including the basic issue information and financial statements to the exchange host 140, so that the issuing host 120 according to Issue quantity to generate tokens, and make the exchange host 140 establish a wallet account for trading the tokens after the financial statement review is qualified, and then the issuer host 120 deposits all generated tokens into the exchange host 140 The wallet account completes the listing of tokens and allows KYC/AML-certified investors to buy and sell tokens through the investment host 130.

The following description will be made in the form of an embodiment in conjunction with "Figure 3" and "Figure 4". Please refer to "Figure 3" first. "Figure 3" is a schematic diagram of applying for the issuance of security tokens according to the present invention. When the company needs to raise funds, the entrusting host 110 set up in the company can submit an issuance request to the issuer host 120 set up in the blockchain technology service provider, so as to issue security tokens through the issuer host 120, for example , as shown in "Figure 3", open the application issuance window 300 on the entrusting host 110, and enter the name of the token to be issued in the security token name input block 311, and enter the quantity in the input block Type in the total quantity to be issued in 312 (also known as the issued quantity). Then, after confirming that it is correct, you can click the application issuance component 313 to generate a corresponding issuance request, and send the issuance request to the issuer host 120, so that the issuer host 120 generates a corresponding number of tokens based on the blockchain smart contract . At this point, only the token generation process is complete, but it is still not possible to trade this token on the exchange. Therefore, in order to enable the generated tokens to be traded on the trading platform, the entrusting host 110 will send a fundraising request including the basic information and financial statements to the exchange host 140, so as to provide accountants and lawyers with basic information and financial statements for the issuance. proceed checking. After passing the examination, the exchange host 140 establishes the first wallet account for trading the token, and sends a listing notification including the first wallet account to the entrusting host 110 to notify that the token is ready for listing. Next, after receiving the listing notification, the client host 110 will send a deposit request including the first wallet account (for example: the address of the first wallet account) to the issuer host 120, so as to notify the issuer host 120 to transfer all generated Tokens are deposited into the first wallet account. After the token is deposited into the first wallet account, it means that the issuance and listing of the token is completed, and investors who have passed the KYC/AML certification can trade the token on the trading platform of the exchange host 140 .

As shown in "Figure 4", "Figure 4" is a schematic diagram of the application of the present invention to trade security tokens. After the token is deposited into the first wallet account of the exchange host 140, the investor can connect to the trading platform of the exchange host 140 through the investment terminal host 130 to browse the transaction window 410, and after passing On the premise of KYC/AML certification, enter the quantity to be purchased in the subscription quantity input block 411, and then click the subscription component 412 to purchase tokens. When the transaction is successful, a confirmation window as shown in "Figure 4" will be displayed 420, used to display the source address 421 (ie: the address of the first wallet account), the destination address 422 (ie: the address of the second wallet account) and the transaction amount for investors to confirm. In addition, if the KYC/AML authentication has not been passed, the authentication element 413 can also be clicked to perform the KYC/AML authentication of the investor, so as to trade the token on the trading platform of the exchange host 140 . In other words, investors can subscribe through the trading platform provided by the exchange host 140, and then obtain a certain amount of security tokens in order to have certain rights that can be exercised. A certain proportion of the income generated during future operations (can be executed through the smart contract of the block chain). In addition, investors can also directly convert tokens into other tokens through the trading platform provided by the exchange host 140 Digital assets, using the characteristics of the blockchain to quickly transfer digital assets. In fact, investors can also use virtual currency (such as Bitcoin, Ethereum or Litecoin, etc.) to purchase issued security tokens. When investors do not want to invest in security tokens, the exchange host 140 provides Coin withdrawal service, for example: remit fiat currency to the third wallet account.

To sum up, it can be seen that the difference between the present invention and the prior art lies in that the entrusting host sends the issuance request including the issued quantity to the issuing host, and sends the fundraising request including the basic issuance information and financial statements to the exchange host, In order to enable the issuing host to generate tokens according to the number of issuances, and to enable the exchange host to establish a wallet account for trading the tokens after the financial statement is reviewed, and then the issuing host will deposit all generated tokens into the transaction The host’s wallet account completes the listing of tokens and allows the trading of tokens. This technical means can solve the problems existing in the previous technology, and then achieve the technical effect of improving the convenience of issuing and listing security tokens.

Although the present invention is disclosed above with the aforementioned embodiments, it is not intended to limit the present invention. Any person familiar with similar skills may make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of patent protection shall be subject to what is defined in the scope of patent application attached to this specification.

110: Delegating host

120: issuer host

130:Investment host

140: exchange host

141: Censorship mods

142: Trading Module

150: Network

Claims (10)

A security token issuance and trading system, the system includes: a client host, used to transmit an issuance request including an issuance quantity, and a fundraising request including an issuance basic information and a financial statement, and in After receiving a listing notification, send a deposit request including a first wallet account; an issuer host is used to generate a plurality of tokens according to the issued quantity after receiving the issue request, and after receiving the issue After the deposit request, deposit all generated tokens into the first wallet account; at least one investment terminal host is used to use a second wallet for trading the tokens after passing the KYC/AML authentication The tokens mentioned in the account transaction; and an exchange host, the exchange host includes: a review module, which is used to review the basic information of the issue and the financial statement after receiving the fundraising request, and review Afterwards, text recognition is carried out on the review result to determine whether it contains a keyword representing qualified review; and a transaction module, used to calculate an issue price of each token according to the financial statement after detecting that the token is deposited into the first wallet account, and allow The investment-end host that has passed the KYC/AML authentication trades the tokens with the second wallet account. After detecting a transaction amount remitted by the investment-end host into fiat currency or digital currency, according to the transaction amount and calculation of the issue price corresponding amount of the tokens, and when the amount of the tokens is sufficient for the transaction, deposit the calculated amount of the tokens from the first wallet account into the second wallet account. According to the issuance and trading system of security tokens in item 1 of the scope of the patent application, when the exchange host detects a sell request from the investment terminal host, according to a sell quantity included in the sell request and The transaction amount is calculated based on the current transaction price of the token, and the exchange host remits legal currency or digital currency equivalent to the transaction amount to a third wallet account of the investment terminal host, and the sold A certain amount of said tokens is transferred from the second wallet account to the first wallet account. According to the issuance and trading system of security tokens according to item 1 of the scope of patent application, the issuer host computer publishes a smart contract on the blockchain in advance, and the smart contract allows a corresponding number of said tokens to be generated according to the issued quantity, and The entrusting host is allowed to send an adjustment request including a burning amount or an increasing amount, so as to delete a corresponding amount of the tokens according to the burning amount, or increase a corresponding amount of the tokens according to the increasing amount. The issuance and trading system of security tokens according to item 1 of the scope of the patent application, wherein the exchange host examines the basic information on the issuance and the financial statements and provides the basic information on the issuance and the financial statements to the review authority, accountants and lawyers Review, when the exchange host recognizes the keyword, the review result is deemed to be qualified and the first wallet account for trading the token is established, wherein the basic issuance information includes the issuance quantity, amount, token Coin rights and smart contracts. The issuance and trading system of security tokens according to item 1 of the scope of the patent application, wherein the investment host executes the KYC/AML authentication procedure when registering on the exchange host, and only allows trading of the tokens after passing the authentication . A method for issuing and trading security tokens, which is applied in a network environment with a client host, an issuer host, at least one investment host and an exchange host, the steps include: the client host transmits a An issuance request of the issued quantity is sent to the issuing host, so that the issuing host generates a plurality of tokens according to the issued quantity; the entrusting host sends a fundraising request including an issuing basic information and a financial statement to the exchange host: the exchange host reviews the basic information on the issuance and the financial statements, and after the review, conducts text recognition on the review results to determine whether a keyword representing a qualified review is included. When the keyword exists, the The exchange host establishes a first wallet account for trading the tokens, and sends a listing notification including the first wallet account to the entrusting host; after receiving the listing notification, the entrusting host sends the listing notification including the A deposit request of the first wallet account to the issuer host, so that the issuer host deposits all generated tokens into the first wallet account; the exchange host deposits the tokens into the first wallet account. After the wallet account, calculate an issue price of each token according to the financial statement, and allow the investment terminal host certified by KYC/AML to trade the token with a second wallet account for trading the token; as well as When the exchange host detects a transaction amount of legal currency or digital currency remitted by the investment terminal host, it calculates the corresponding number of tokens according to the transaction amount and the issue price, and in the When the quantity is sufficient for transaction, the calculated quantity of said tokens is deposited into the second wallet account from the first wallet account. According to the issuance and trading method of security tokens in item 6 of the scope of the patent application, when the exchange host detects a sell request from the investment terminal host, according to a sell quantity included in the sell request and The transaction amount is calculated based on the current transaction price of the token, and the exchange host remits legal currency or digital currency equivalent to the transaction amount to a third wallet account of the investment terminal host, and the sold A certain amount of said tokens is transferred from the second wallet account to the first wallet account. According to the issuance and trading method of security tokens according to item 6 of the scope of the patent application, the issuing host computer publishes a smart contract on the blockchain in advance, and the smart contract allows a corresponding number of said tokens to be generated according to the issued quantity, and The entrusting host is allowed to send an adjustment request including a burning amount or an increasing amount, so as to delete a corresponding amount of the tokens according to the burning amount, or increase a corresponding amount of the tokens according to the increasing amount. According to the issuance and transaction method of security tokens in item 6 of the scope of patent application, wherein the exchange host examines the basic information on the issuance and the financial statement is to provide the basic information on the issuance and the financial statement to the review agency, accountants and lawyers Review, when the exchange host recognizes the keyword, the review result is deemed to be qualified and the first wallet account for trading the token is established, wherein the basic issuance information includes the issuance quantity, amount, token Coin rights and smart contracts. The issuance and trading method of security tokens according to item 6 of the scope of the patent application, wherein the investment terminal host executes the KYC/AML authentication procedure when registering on the exchange host, and only allows trading of the tokens after passing the authentication .

Images