WO2020156481A1

WO2020156481A1 - Fund flow method, and device and storage medium

Info

Publication number: WO2020156481A1
Application number: PCT/CN2020/073982
Authority: WO
Inventors: 何正军; 王志文; 吴思进
Original assignee: 杭州复杂美科技有限公司
Priority date: 2019-01-28
Filing date: 2020-01-23
Publication date: 2020-08-06
Also published as: CN109801167A

Abstract

Disclosed are a fund flow method, and a device and a storage medium. The method comprises: receiving a first transaction, and according to the first transaction, a first contract executing the following operations: deducting a first amount of first assets from a first user account of the first contract; adding the first amount of first assets to a second contract account of the first contract; and adding the first amount of first assets to a first user account of a second contract (S11), wherein the first contract is a token issuing contract for issuing tokens, and the first transaction is generated and sent by a first user end when the second contract needs to use several assets of a first user. Adding the contract account to the token issuing contract, and recording a transfer process of the contract account by means of the token issuing contract ensure that errors in execution of the token issuing contract or contract cheating can be found in a timely manner, thereby guaranteeing the interests of a user.

Description

Method, equipment and storage medium for capital circulation

Technical field

This application relates to the field of blockchain technology, in particular to a method, equipment and storage medium for capital circulation.

Background technique

When there are multiple types of contracts in the blockchain system, that is, when the native contract and the dynamic publishing contract platform coexist in the same system, it is difficult to realize the convenient and safe transfer of system tokens between different contracts, and the contract Assets such as currency transfers, withdrawals, etc. are all individually controlled by the currency issuing contract. If assets are transferred between contracts, it may not be discovered in time due to contract execution errors or cheating, resulting in economic losses.

Summary of the invention

In view of the above-mentioned shortcomings or deficiencies in the prior art, it is desirable to provide a convenient and safe method, equipment and storage medium for transferring funds.

In the first aspect, the present invention provides a method of capital circulation, including:

Receive the first transaction, and according to the first transaction, the first contract performs the following operations:

Deduct the first amount of the first asset from the first user account of the first contract;

Add the first amount of the first asset in the second contract account of the first contract;

Add the first amount of the first asset to the first user account of the second contract;

Among them, the first contract is a currency issuance contract for issuing currencies, and the first transaction is generated and sent by the first user terminal when the second contract needs to use several assets of the first user.

Further, the first asset of the second contract is used to perform at least one of the following operations:

Freeze in the second contract;

Activate after freezing in the second contract;

Transfer funds to the second account of the second user in the second contract;

After freezing in the second contract, transfer to the second account and then freeze;

Activate after freezing in the second contract and transferring to the second account;

In the second aspect, the present invention provides a method of capital circulation, including:

Receive the second transaction, and according to the second transaction, the first contract performs the following operations:

Deduct the second amount of the second asset from the first user account of the second contract;

Deduct the second amount of the second asset from the second contract account of the first contract;

Add a second amount of second assets to the first user account in the first contract;

Among them, the first contract is a currency issuance contract for issuing currencies, and the second transaction is generated and sent when the first user needs to transfer several assets to the first contract.

In a third aspect, the present invention also provides a device, including one or more processors and a memory, where the memory contains instructions executable by the one or more processors to make the one or more processors execute each of the processors according to the present invention. The fund flow method provided by the embodiment.

In a fourth aspect, the present invention also provides a storage medium storing a computer program, which causes a computer to execute the fund transfer method provided according to each embodiment of the present invention.

The beneficial effects of the present invention

In the present invention, by adding a contract account to the currency issuance contract, when assets are transferred, the assets of the user account are first transferred to the contract account, and then the assets are transferred in or out to the currency issuance contract. On the one hand, the asset is completed On the other hand, when the currency is withdrawn, the transfer process of the currency issuance contract to the contract account is recorded to ensure that the execution of the currency issuance contract or contract cheating can be detected in time, and the interests of users are guaranteed.

Description of the drawings

By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, purposes and advantages of the present application will become more apparent:

Fig. 1 is a flow chart of a method for transferring funds according to an embodiment of the present invention.

Fig. 2 is a scene diagram of a preferred embodiment of the method shown in Fig. 1.

Fig. 3 is a flowchart of another method for capital circulation provided by an embodiment of the present invention.

Fig. 4 is a scene diagram of a preferred embodiment of the method shown in Fig. 3.

Fig. 5 is a schematic structural diagram of a device provided by an embodiment of the present invention.

detailed description

The application will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described here are only used to explain the related invention, but not to limit the invention. In addition, it should be noted that, for ease of description, only the parts related to the invention are shown in the drawings.

It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other if there is no conflict. Hereinafter, the present application will be described in detail with reference to the drawings and in conjunction with embodiments.

As shown in Figure 1, in this embodiment, the present invention provides a method for capital circulation, including:

S11. Receive the first transaction, and according to the first transaction, the first contract performs the following operations:

Specifically, as shown in the scenario in Figure 2, when the first user wants to transfer some assets, such as 10 tokens ABC, from the issuing contract (such as the coins contract) to the first user under the second contract (such as the dice contract) The account address account1. At this time, the first user sends a transfer transaction, the first contract, that is, the coin issuing contract, after receiving the transaction, 10 ABC will be deducted from the first user account account1 of the coins contract. The second contract account contract1 (such as the contract account of the dice contract) adds 10 ABCs. At this time, the total number of assets in the first contract does not decrease or increase; after 10 ABCs are added to the contract account of the dice contract, the coins of the first contract are in dice The account address of the first user in the contract adds 10 ABCs to account1. At this time, the dice contract has the authority to process the 10 ABCs in the account. The 10 ABCs can only be controlled by the dice contract, and coins are no longer controlled. right.

Further preferably, the 10 ABCs in the account1 account in the above dice contract are controlled by the contract, which can be frozen by the dice contract; they can also be activated after being frozen in the dice contract; or they can be transferred to the second user in the dice contract. Second account account2; it can also be frozen in the second contract dice contract and then transferred to the second account account2; it can also be frozen in the second contract dice and then transferred to the second account account2 and activated;

The first contract mentioned above, that is, the currency issuing contract can be a native contract or a dynamic deployment contract; the second contract can be a native contract or a dynamic deployment contract.

In the above embodiment, by transferring the assets in the user account to the contract account, and then to the user account under the second contract, on the one hand, cross-contract circulation is realized, and the transfer of asset control rights is completed. , In the currency issuance contract, the assets of the contract account are booked, so that the contract can be found in time due to errors or cheating in the subsequent transfer of the contract due to errors or cheating, so as to avoid or reduce users' economic losses.

Fig. 3 is another asset circulation method provided by an embodiment of the present invention. As shown in Figure 3, in this embodiment, an asset circulation method includes:

S21. Receive the second transaction, and according to the second transaction, the first contract performs the following operations:

Specifically, in the scenario shown in Figure 4, the first user wants to raise 10 ABCs from the assets in the first user account account1 in the dice contract, then the first user sends a second transaction, and the coins of the first contract are based on the second transaction. Deduct 10 ABCs from the first user account account1 in the second contract dice contract, then deduct 10 ABCs from the second contract account contract1 in the coins contract, and finally add 10 to the first user account account1 in the coins contract ABC.

In more embodiments, the above-mentioned first contract, that is, the currency issuing contract, may be a native contract or a dynamic deployment contract; the second contract may be a native contract or a dynamic deployment contract.

In more embodiments, before the coins contract deducts the second amount of the second asset from the first user account of the second contract, a one-step judgment operation is performed: that is, it is judged that the second contract account contract1 previously transferred to the coins contract Whether the first amount of assets is greater than the second amount of assets to be transferred out, if yes, continue with the subsequent steps; if not, terminate the withdrawal operation. Specifically, if the first contract coins contract wants to deduct 15 ABC from the contract account, which exceeds the 10 ABC transferred to the contract account in the previous period, the withdrawal operation is terminated at this time, thereby avoiding the first user's economic loss.

In the present invention, when withdrawing coins, the assets are first transferred to the contract account, and then transferred to the first user account. Through the accounting records of the currency issuing contract, it is ensured that the first contract can only operate the transferred amount when withdrawing coins. Assets cannot operate on the part of the second contract account that exceeds the first amount, avoiding or reducing economic losses caused by contract errors or contract cheating.

As shown in FIG. 5, as another aspect, the present application also provides a device 500, including one or more central processing units (CPU) 501, which can be based on a program stored in a read-only memory (ROM) 502 or The program loaded from the storage section 508 into the random access memory (RAM) 503 executes various appropriate actions and processing. In the RAM 503, various programs and data required for the operation of the device 500 are also stored. The CPU501, ROM502, and RAM503 are connected to each other through a bus 504. An input/output (I/O) interface 505 is also connected to the bus 504.

The following components are connected to the I/O interface 505: an input part 506 including a keyboard, a mouse, etc.; an output part 507 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and speakers, etc.; a storage part 508 including a hard disk, etc. ; And a communication section 509 including a network interface card such as a LAN card, a modem, and the like. The communication section 509 performs communication processing via a network such as the Internet. The driver 510 is also connected to the I/O interface 505 as needed. A removable medium 511, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 510 as needed, so that the computer program read from it is installed into the storage section 508 as needed.

In particular, according to the embodiments of the present disclosure, the fund circulation method described in any of the above embodiments can be implemented as a computer software program. For example, an embodiment of the present disclosure includes a computer program product, which includes a computer program tangibly embodied on a machine-readable medium, and the computer program includes program code for executing a fund transfer method. In such an embodiment, the computer program may be downloaded and installed from the network through the communication part 509, and/or installed from the removable medium 511.

As yet another aspect, the present application also provides a computer-readable storage medium. The computer-readable storage medium may be the computer-readable storage medium included in the device of the above-mentioned embodiment; or it may exist alone without being installed. The computer-readable storage medium in the device. The computer-readable storage medium stores one or more programs, and the programs are used by one or more processors to execute the fund transfer method described in this application.

The flowcharts and block diagrams in the drawings illustrate the possible implementation architecture, functions, and operations of the system, method, and computer program product according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagram can represent a module, program segment, or part of code, and the module, program segment, or part of code contains one or more for realizing the specified logic function Executable instructions. It should also be noted that, in some alternative implementations, the functions marked in the block may also occur in a different order from the order marked in the drawings. For example, two blocks shown one after another can actually be executed substantially in parallel, and they can sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and/or flowchart, and the combination of the blocks in the block diagram and/or flowchart, can be implemented by a dedicated hardware-based system that performs the specified functions or operations Or it can be realized by a combination of dedicated hardware and computer instructions.

The units or modules involved in the embodiments described in the present application can be implemented in software or hardware. The described units or modules may also be arranged in the processor. For example, each of the described units may be a software program arranged in a computer or a mobile smart device, or may be a separately configured hardware device. Among them, the names of these units or modules do not constitute a limitation on the units or modules themselves under certain circumstances.

The above description is only a preferred embodiment of the present application and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover the above technical features or technical solutions without departing from the concept of the application. Other technical solutions formed by any combination of its equivalent features. For example, the above-mentioned features and the technical features disclosed in this application (but not limited to) with similar functions are mutually replaced to form a technical solution.

Claims

An asset circulation method, characterized in that it includes:

The first transaction is received, and according to the first transaction, the first contract performs the following operations:

Deduct the first amount of the first asset from the first user account of the first contract;

Adding the first asset of the first amount to the second contract account of the first contract;

Adding the first amount of the first asset to the first user account of the second contract;

Wherein, the first contract is a currency issuance contract for issuing currency, and the first transaction is generated and sent by the first user terminal when the second contract needs to use several assets of the first user.
The method according to claim 1, wherein the first asset of the second contract is used to perform at least one of the following operations:

Freeze in the second contract;

Activate after being frozen in the second contract;

Transfer to the second account of the second user in the second contract;

After being frozen in the second contract, the funds are transferred to the second account and then frozen;

Activate after being frozen in the second contract and transferred to the second account;
An asset circulation method, characterized in that it includes:

The second transaction is received, and according to the second transaction, the first contract performs the following operations:

Deduct the second amount of the second asset from the first user account of the second contract;

Deduct the second amount of the second asset from the second contract account of the first contract;

Adding the second amount of second assets to the first user account in the first contract;

Wherein, the first contract is a currency issuance contract for issuing currency, and the second transaction is generated and sent when the first user needs to transfer several assets to the first contract.
A device, characterized in that the device includes:

One or more processors;

Memory, used to store one or more programs,

When the one or more programs are executed by the one or more processors, the one or more processors are caused to execute the method according to any one of claims 1-3.
A storage medium storing a computer program, wherein the program is executed by a processor to implement the method according to any one of claims 1-3.