TWI813938B - Blockchain-based trust and custody system for digital asset - Google Patents

Abstract

A blockchain-based trust and custody system for digital asset includes a communication device, a database, and a processor. The communication device is configured to connect to a public blockchain network and a private blockchain network. The database includes a digital ledger and a sub-database of trust deed. The digital ledger is configured to store transaction detailed information obtained by executing transaction through the public blockchain network and the private blockchain network. The sub-database of trust deed is configured to store a trust deed information. The processor connects to the communication device and the database, and is configured to transfer an encrypted digital asset to one or more specified blockchain address in the private blockchain network based on the trust deed information.

Description

Trust and custody system for digital assets based on blockchain

This disclosure relates to a trust and custody system for digital assets based on blockchain.

In recent years, as the initial development of blockchain technology has driven the trend of digital finance (Fintech) and currency digitization, various new types of digital assets have become increasingly popular.

However, in response to this trend of currency digitization, banks want to continue to perform traditional trust functions, so they hope to extend the prototype and spirit of traditional trust and safe deposit box services to protect customers' digital assets.

Therefore, how to propose a trust and custody system for digital assets based on blockchain is one of the problems that the industry is currently eager to invest in research and development resources to solve.

In view of this, one purpose of this disclosure is to propose a trust and custody system for digital assets based on blockchain that can solve the above problems.

In order to achieve the above objectives, according to an embodiment of the present disclosure, a trust and custody system for digital assets based on blockchain includes a communication device, a database and a processor. The communication device is configured to connect to the public blockchain network and the private blockchain network. The database includes digital accounting books and trust contract sub-databases. The digital ledger is configured to store transaction details information obtained from transactions executed through public blockchain networks and private blockchain networks. The trust contract sub-database is configured to store trust contract information. The processor is connected to the communication device and the database, and is configured to transfer the encrypted digital assets to one or more designated blockchain addresses in the private blockchain network based on the trust contract information.

In one or more implementations of the present disclosure, the processor further includes a control unit. The control unit is configured to receive transaction detail information based on the first transaction through the communication device after the client executes the first transaction of transferring the encrypted digital assets to the first blockchain address through the public blockchain network; and transfer the transaction details based on the first transaction via the communication device. The transaction details of the first transaction are stored in the digital account book.

In one or more implementations of the present disclosure, the control unit is further configured to store the encrypted digital asset in the account location of the first blockchain address.

In one or more implementations of the present disclosure, the control unit is further configured to, after receiving the digital asset transfer request from the beneficiary, execute the transfer of the encrypted digital assets located at the first blockchain address to the digital asset transfer related party. forward the second transaction of the requested second blockchain address; and after executing the second transaction, create one or more transaction details based on the second transaction, and store the one or more transaction details in the digital account book.

In one or more implementations of the present disclosure, the processor further includes an authentication unit. The authentication unit is configured to require the beneficiary to enter the beneficiary's digital authentication key before the beneficiary sends a digital asset transfer request to the control unit; when it is determined that the beneficiary's digital authentication key has passed the verification, the beneficiary is required to perform an authentication procedure; and When it is determined that the beneficiary has passed the authentication process, the beneficiary is allowed to send a digital asset transfer request to the control unit.

In one or more implementations of the present disclosure, the processor further includes a creation unit. Create a unit configuration to create a beneficiary digital authentication key, and create a principal digital authentication key and a trustee digital authentication key.

In one or more implementations of the present disclosure, the control unit is configured to store the encrypted digital asset in a vehicle including a second blockchain address.

In one or more implementations of the present disclosure, the carrier is a hardware wallet stored offline.

In one or more implementations of the present disclosure, the processor further includes a control unit. The control unit is configured to provide inquiry services after receiving an inquiry request from the settlor or beneficiary via the communication device; and to provide trust contract amendments after receiving a trust contract amendment request from the settlor and/or beneficiary via the communication device. services; and provide trust contract termination services after receiving trust contract termination requests from the settlor and/or beneficiaries via communication devices.

In one or more implementations of the present disclosure, the processor further includes an authentication unit. The authentication unit is configured to require the principal or beneficiary to perform one of a plurality of authentication methods after the control unit receives an inquiry request from the principal or beneficiary via the communication device; After the beneficiary's trust contract amendment request, the settlor, beneficiary and trustee are required to input the settlor's digital authentication key, the beneficiary's digital authentication key and the trustee's digital authentication key respectively; and the control unit receives the request through the communication device After the trust contract termination request from the settlor and/or beneficiary, the settlor, beneficiary and trustee are required to enter the settlor's digital authentication key, the beneficiary's digital authentication key and the trustee's digital authentication key respectively.

To sum up, in the trust and custody system of digital assets based on the blockchain disclosed in this disclosure, it becomes an impartial third party by adding digital currency asset trust custody services, adopting the operating principles of traditional money trust and safe deposit box business, and using Digital encryption technology is combined with an offline hardware wallet model to achieve the purpose of protecting customers' digital assets.

The above is only used to describe the problems to be solved by the present disclosure, the technical means to solve the problems, the effects thereof, etc. The specific details of the present disclosure will be introduced in detail in the following implementation modes and related drawings.

A plurality of implementation manners of the present disclosure will be disclosed below with drawings. For clarity of explanation, many practical details will be explained together in the following description. However, it should be understood that these practical details should not be used to limit the disclosure. That is to say, in some implementations of the present disclosure, these practical details are not necessary. In addition, for the sake of simplifying the drawings, some commonly used structures and components will be illustrated in a simple schematic manner in the drawings. The same reference numbers will be used throughout the drawings to refer to the same or similar elements.

Please refer to Figure 1 , which is a schematic diagram of a blockchain-based digital asset trust and custody system 100 according to an embodiment of the present disclosure. As shown in Figure 1 , the trust and custody system 100 for digital assets based on blockchain in this embodiment includes a communication device 110 , a database 120 and a processor 130 . The communication device 110 is configured to connect the public blockchain network PLNW and the private blockchain network PVNW. The database 120 includes a digital account book 122 and a trust contract sub-database 124. The digital ledger 122 is configured with transaction detail information obtained by executing transactions through the public blockchain network PLNW and the private blockchain network PVNW. The trust contract sub-database 124 is configured to store trust contract information. The processor 130 is connected to the communication device 110 and the database 120, and is configured to transfer the encrypted digital assets to one or more designated blockchain addresses in the private blockchain network PVNW based on the trust contract information.

Please refer to Figure 2. Specifically, the processor 130 further includes a control unit 132, an authentication unit 134 and a creation unit 136. In some embodiments, the control unit 132 is configured to receive, via the communication device 110 , the first transaction based on the first blockchain address after the principal 200 executes the first transaction of transferring the encrypted digital assets to the first blockchain address through the public blockchain network PLNW. 1. Transaction details information of the transaction. The control unit 132 is further configured to store the transaction detail information based on the first transaction in the digital account book 122 . The control unit 132 is further configured to store the encrypted digital asset in the account location of the first blockchain address.

In some embodiments, the control unit 132 is further configured to, after receiving the digital asset transfer request from the beneficiary 300, execute the transfer of the encrypted digital asset located at the first blockchain address to the third address of the digital asset transfer request. The second transaction of the two blockchain addresses. The control unit 132 is further configured to create one or more transaction details based on the second transaction after executing the second transaction, and store the one or more transaction details in the digital account book 122 . The control unit 132 is further configured to store the encrypted digital asset in a carrier containing the second blockchain address.

In some embodiments, the control unit 132 is further configured to provide an inquiry service after receiving an inquiry request from the principal 200 or the beneficiary 300 via the communication device 110 .

In some embodiments, the control unit 132 is further configured to provide a trust contract update service after receiving a trust contract update request from the trustor 200 and/or the beneficiary 300 via the communication device 110 .

In some embodiments, the control unit 132 is further configured to provide a trust contract termination service after receiving a trust contract termination request from the trustor 200 and/or the beneficiary 300 via the communication device 110 .

As shown in Figure 2, in some embodiments, the authentication unit 134 is configured to require the beneficiary 300 to input the beneficiary digital authentication key before the beneficiary 300 sends a digital asset transfer request to the control unit 132. The authentication unit 134 is further configured to require the beneficiary 300 to perform an authentication procedure when determining that the beneficiary's digital authentication key has passed the verification. The authentication unit 134 is further configured to store transaction detail information based on the first transaction in the digital ledger 122 .

In some embodiments, the authentication unit 134 is further configured to require the principal 200 or the beneficiary 300 to perform one of a plurality of authentication methods after the control unit 132 receives an inquiry request from the principal 200 or the beneficiary 300 via the communication device 110 . a.

In some embodiments, the authentication unit 134 is further configured to require the settlor 200, the beneficiary 300 and the trustee after the control unit 132 receives the trust contract amendment request from the settlor 200 and/or the beneficiary 300 via the communication device 110. Enter the principal's digital authentication key, the beneficiary's 300-digit authentication key, and the trustee's digital authentication key respectively.

In some embodiments, the authentication unit 134 is further configured to require the settlor 200, the beneficiary 300 and the trustee to terminate the trust contract respectively after the control unit 132 receives the trust contract termination request from the settlor 200 and/or the beneficiary 300 via the communication device 110. Enter the principal’s 200-digit authentication key, the beneficiary’s 300-digit authentication key, and the trustee’s digital authentication key.

As shown in FIG. 2 , the creation unit 136 of the processor 130 is configured to create a beneficiary digital authentication key, a principal digital authentication key, and a trustee digital authentication key.

Next, the prerequisites that must be met before implementing the various implementation methods of the blockchain-based digital asset trust and custody system disclosed in this disclosure will be described in detail.

First, a trust contract must be established to identify the trustor 200, the trustee (bank) and the beneficiary 300, and the trust subject matter and benefit distribution principles must be stated in the trust contract. In this disclosure, the trust subject matter refers to encrypted digital assets that use cryptographic principles to ensure transaction security, such as: Bitcoin (BTC), Ethereum (ETH), Tether (USDT) and other encrypted digital currencies, but not here limit. The aforementioned trust contract information will be further stored in the trust contract sub-database 124 in the database 120. The creation unit 136 creates the trustor's digital authentication key, the beneficiary's digital authentication key and the trustee's digital authentication key respectively belonging to the trustor 200, the beneficiary 300 and the trustee (bank) according to the content of the trust contract, so as to facilitate the above three parties. Authentication is performed when executing any transaction in the blockchain-based digital asset trust and custody system 100.

Various implementations of the blockchain-based digital asset trust and custody system disclosed in the present disclosure will be described in detail below.

Implementation method (1): Transfer digital assets.

In one implementation of the present disclosure, based on the premise that the above-mentioned trust contract has been established and with the above-mentioned structural configuration, the client 200 executes the first transaction through the public blockchain network PLNW, in which the first transaction will encrypt the digital A transaction that transfers assets to the first blockchain address. After the client 200 successfully executes the first transaction, the control unit 132 receives the transaction details information based on the first transaction via the communication device 110 and stores the transaction details information based on the first transaction in the digital account book 122 .

More specifically, the client 200 transfers the encrypted digital assets it owns to the first blockchain address designated by the bank through the encrypted digital currency trading platform operated by the public blockchain network PLNW. When the first transaction is executed successfully, the control unit 132 receives the transaction detail information based on the first transaction (for example, the transaction amount of the encrypted digital asset) through the communication device 110, and logs the transaction detail information into the bank's blockchain-based The digital asset trust and custody system 100 (for example, the digital asset custody system) is then stored in the digital account book 122.

In some embodiments, the first blockchain address is based on a trust contract structure that allows a person who is both a cryptocurrency user and a principal specified in the trust contract to execute transactions through the public blockchain network PLNW. The blockchain address, and the first blockchain address is also the designated blockchain address located in the private blockchain network PVNW based on the trust contract structure.

In some embodiments, the control unit 132 stores the encrypted digital asset in the account location of the first blockchain address.

In some embodiments, before the beneficiary 300 sends a digital asset transfer request to the control unit 132 of the blockchain-based digital asset trust and custody system 100, the authentication unit 134 requires the beneficiary 300 to input the beneficiary digital authentication key. . When the authentication unit 134 determines that the beneficiary's digital authentication key has passed the verification, it requires the beneficiary 300 to perform the authentication procedure. When the authentication unit 134 determines that the beneficiary 300 passes the authentication process, the beneficiary 300 is allowed to send a digital asset transfer request to the control unit 132 . After receiving the digital asset transfer request, the control unit 132 executes the second transaction, where the second transaction is a transaction that transfers the encrypted digital assets from the first blockchain address to the second blockchain address. After the client 200 successfully executes the second transaction, the control unit 132 creates one or more transaction details based on the second transaction, and stores the one or more transaction details in the digital account book 122 . At the same time, the control unit 132 stores the encrypted digital assets in the carrier containing the second blockchain address. The trustor completes the transfer of trust property through the aforementioned operations.

In some embodiments, the authentication procedure may be at least one of authentication methods such as biometric authentication, graphic authentication, password authentication, dynamic password authentication, etc.

In some implementations, the second blockchain address is a designated blockchain address located in the private blockchain network PVNW based on the trust contract structure.

In some embodiments, the control unit 132 stores the encrypted digital assets in a vehicle containing the second blockchain address, where the vehicle is a hardware wallet (for example, a cold wallet) stored offline. The vehicle was later moved to a safe deposit box for storage.

Implementation method (2): Query the trust contract and/or transaction details.

In one embodiment of the present disclosure, after the control unit 132 receives an inquiry request from the principal 200 or the beneficiary 300 via the communication device 110, the authentication unit 134 requires the principal 200 or the beneficiary 300 to perform multiple authentication methods (for example, One of biometric authentication, graphic authentication, password authentication, dynamic password authentication, etc.). When the trustor 200 or the beneficiary 300 passes the authentication through the authentication method, the control unit 132 provides query services (for example, reading documents such as trust contracts and transaction details).

In some implementations, the blockchain-based digital asset trust and custody system 100 determines the contents that can be viewed by the trustor 200, the beneficiary 300, and the trustee (bank) based on the trust contract.

Implementation method (3): Amend the trust contract.

In one embodiment of the present disclosure, after the control unit 132 receives the trust contract amendment request from the settlor 200 and/or the beneficiary 300 via the communication device 110, the authentication unit 134 requires the settlor 200, the beneficiary 300 and the trustee to (Bank side) Enter the principal’s digital authentication key, the beneficiary’s digital authentication key and the trustee’s digital authentication key respectively. When the settlor 200, the beneficiary 300 and the trustee are authenticated through the digital authentication key, the control unit 132 provides trust contract update services.

Implementation method (4): Terminate the trust contract.

In one embodiment of the present disclosure, after the control unit 132 receives the trust contract termination request from the settlor 200 and/or the beneficiary 300 via the communication device 110, the authentication unit 134 requires the settlor 200, the beneficiary 300 and the trustee ( Bank side) Enter the principal’s digital authentication key, the beneficiary’s digital authentication key and the trustee’s digital authentication key respectively. When the settlor 200, the beneficiary 300 and the trustee are authenticated through the digital authentication key, the control unit 132 provides a trust contract termination service.

From the above detailed description of the specific implementation methods of the present disclosure, it can be clearly seen that in the trust and custody system of digital assets based on the blockchain of the present disclosure, by adding digital currency asset trust custody services, an impartial third party can be formed , adopts the operating principles of traditional money trust and safe deposit box business, and uses digital encryption technology with an offline hardware wallet model to achieve the purpose of protecting customers' digital assets.

The above content summarizes the features of several embodiments so that those familiar with this technology can better understand the aspects of this case. Those skilled in the art should understand that the above may be readily used as a basis for designing or modifying other variations without departing from the spirit and scope of the present application in order to carry out the same purposes and/or implementations of the embodiments described herein. Same advantages. The above contents should be understood as examples of the present disclosure, and the scope of protection shall be subject to the scope of the patent application.

100: Trust and custody system for digital assets based on blockchain 110: Communication device 120:Database 122:Digital account book 124: Trust contract sub-database 130: Processor 132:Control unit 134:Authentication unit 136:Create unit 200: Client 300:Beneficiary PLNW: Public Blockchain Network PVNW: Private Blockchain Network

In order to make the above and other objects, features, advantages and embodiments of the present disclosure more obvious and understandable, the accompanying drawings are described as follows: Figure 1 is a functional block diagram illustrating a blockchain-based trust and custody system for digital assets connecting a public blockchain network and a private blockchain network according to an embodiment of the present disclosure. Figure 2 is a detailed functional block diagram illustrating a blockchain-based trust and custody system for digital assets connecting a public blockchain network and a private blockchain network according to an embodiment of the present disclosure.

Domestic storage information (please note in order of storage institution, date and number) without Overseas storage information (please note in order of storage country, institution, date, and number) without

100: Trust and custody system for digital assets based on blockchain

110: Communication device

120:Database

122:Digital account book

124: Trust contract sub-database

130: Processor

200: Client

300:Beneficiary

PLNW: Public Blockchain Network

PVNW: Private Blockchain Network

Claims (9)

A trust and custody system for digital assets based on blockchain, including: a communication device configured to connect a public blockchain network and a private blockchain network; a database including: a digital account book, configured To store transaction details information obtained from transactions executed through the public blockchain network and the private blockchain network; and a trust contract sub-database configured to store trust contract information; and a processor connected to the The communication device and the database are configured to: transfer an encrypted digital asset to one or more designated blockchain addresses in the private blockchain network based on the trust contract information; store the encrypted digital asset in A hardware wallet containing the designated one or more blockchain addresses stored offline; after receiving a trust contract amendment request from a principal and/or a beneficiary via the communication device, requesting the principal to , the beneficiary and a trustee respectively input a principal's digital authentication key, a beneficiary's digital authentication key and a trustee's digital authentication key; and when the principal, the beneficiary and the trustee pass the delegation When the digital authentication key of the person, the digital authentication key of the beneficiary and the digital authentication key of the trustee pass the authentication, a trust contract update service is provided. The trust and custody system for digital assets based on blockchain as described in claim 1, wherein the processor further includes a control unit configured to: when the principal executes the transaction through the public blockchain network After the encrypted digital asset is transferred to a first transaction at a first blockchain address, receive transaction detail information based on the first transaction through the communication device; and store the transaction detail information based on the first transaction. in the digital account book. The trust and custody system for blockchain-based digital assets as described in claim 2, wherein the control unit is further configured to: store the encrypted digital assets in an account location of the first blockchain address. The trust and custody system for digital assets based on blockchain as described in claim 2, wherein the control unit is further configured to: after receiving a digital asset transfer request from the beneficiary, the execution will be located in the first area The encrypted digital asset of the block chain address is transferred to the second block of one of the digital asset transfer requests. a second transaction of the chain address; and after executing the second transaction, create one or more transaction details based on the second transaction, and store the one or more transaction details in the digital account book. The trust and custody system for digital assets based on blockchain as described in claim 4, wherein the processor further includes an authentication unit configured to: when the beneficiary sends the digital asset transfer request to the controller Before the unit, the beneficiary is required to enter the beneficiary's digital authentication key; when it is judged that the beneficiary's digital authentication key has passed the verification, the beneficiary is required to perform an authentication procedure; and when it is judged that the beneficiary has passed the authentication procedure, The beneficiary is allowed to send the digital asset transfer request to the control unit. The trust and custody system for digital assets based on blockchain as described in claim 5, wherein the processor further includes a creation unit configured to: create the beneficiary digital authentication key, the principal digital authentication key and the trustee’s digital authentication key. The trust and custody system for digital assets based on blockchain as described in request 6, wherein the control unit is configured with: The encrypted digital asset is stored in a vehicle containing the second blockchain address. The trust and custody system for digital assets based on blockchain as described in claim 1, wherein the processor further includes a control unit configured to: after receiving data from the principal or the beneficiary via the communication device After an inquiry request, an inquiry service is provided; and after a trust contract termination request from the settlor and/or the beneficiary is received via the communication device, a trust contract termination service is provided. The trust and custody system for digital assets based on blockchain as described in claim 8, wherein the processor further includes an authentication unit, the authentication unit is configured to: when the control unit receives a message from the principal or through the communication device After the beneficiary's query request, the principal or the beneficiary is required to perform one of a plurality of authentication methods; and the control unit receives the trust from the principal and/or the beneficiary through the communication device After the contract termination request, the principal, the beneficiary and the trustee are required to input the principal's digital authentication key, the beneficiary's digital authentication key and the trustee's digital authentication key respectively.

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