CN108171609B

Movatterモバイル変換

Info

Publication number: CN108171609B
Application number: CN201711474449.1A
Authority: CN
Inventors: 卢亦斌; 路成业
Original assignee: Suzhou Lang Run Innovation Intellectual Property Operation Co ltd
Current assignee: Suzhou Lang run innovation intellectual property operation Co.,Ltd.
Priority date: 2017-12-29
Filing date: 2017-12-29
Publication date: 2021-05-07
Anticipated expiration: 2037-12-29
Also published as: CN108171609A

Abstract

Translated fromChinese

本申请公开了一种数字资产互通的方法和计算机可读存储介质。所述方法基于共识机制在联盟区块链上部署兑换智能合约，使得在数字资产交易平台节点上撮合成功的数字资产持有方节点自动执行所述兑换智能合约，以完成不同类型的数字资产的兑换。因此，所述方法实现了不同类型的数字资产可以在联盟区块链内互通互用，提高了数字资产的使用效率，同时部署联盟区块链保障了数字资产发行方节点之间的安全问题。

The present application discloses a method and a computer-readable storage medium for intercommunication of digital assets. The method deploys the exchange smart contract on the alliance blockchain based on the consensus mechanism, so that the successful digital asset holder node on the digital asset trading platform node automatically executes the exchange smart contract, so as to complete the exchange of different types of digital assets. exchange. Therefore, the method realizes that different types of digital assets can be interoperable in the consortium blockchain, which improves the use efficiency of the digital assets, and at the same time deploys the consortium blockchain to ensure the security between the digital asset issuer nodes.

Description

Method and computer readable storage medium for digital asset interworking

Technical Field

The present application relates to the field of computer technology, in particular, to blockchain technology, and more particularly, to a method and computer-readable storage medium for digital asset interworking.

Background

A federation blockchain refers to a blockchain whose consensus process is controlled by a preselected node. Is a blockchain that is "partially decentralized", i.e., common nodes (nodes that do not obtain federation permissions) in a federation blockchain can refer to and transact, but cannot verify the transaction and cannot issue smart contracts. Only nodes that possess a certain reputation and are granted certificates by the federation can conduct authentication transactions and participate in deploying smart contracts. This can effectively solve the problem that traditional transaction is inefficient and the security is poor.

Currently, in order to retain old customers and attract new customers, each merchant generally adopts a membership card mechanism, and issues digital assets (such as points and the like) into the membership card according to the consumption amount of the customers. The customer may exchange the digital asset for the merchant-configured item at the prescribed time period.

However, each merchant generally issues digital assets to customers according to its own specified digital asset issuing rules, that is, the digital assets owned by the customers can only be exchanged according to the rules set by the merchant, and most digital assets have the limitation of expiration and invalidation. This makes the digital assets between different merchants exist independently, the circulation is poor, and the digital asset utilization rate is not high.

Disclosure of Invention

In view of the above, the present application discloses a method for digital asset intercommunication and a computer-readable storage medium, so that different types of digital assets are intercommunicated and interchanged within a federation blockchain, thereby improving the utilization efficiency of the digital assets.

In a first aspect, a method for digital asset interworking is provided, including:

the method comprises the steps that a first node and a second node respectively upload a digital asset exchange request to a digital asset transaction platform node, wherein the digital asset exchange request comprises the type and the number of digital assets to be exchanged and the type and the number of the digital assets to be exchanged;

if the digital asset exchange requests of the first node and the second node are successfully matched, the digital asset transaction platform node feeds back a message of successful matching to the first node and the second node;

the first node and the second node execute a conversion intelligent contract which is pre-deployed in a federation block chain to generate a conversion transaction list, wherein the conversion transaction list comprises private key signatures and addresses of the first node and the second node and types and numbers of digital assets to be converted by the first node and the second node respectively;

verifying the converted transaction sheet in a alliance block chain, and if the verification is passed, successfully converting the digital assets between the first node and the second node;

and the digital asset transaction platform node uploads the digital asset exchange requests of the first node and the second node to a alliance block chain after carrying out hash operation.

Further, validating the redemption transaction ticket in a federation blockchain includes:

the digital asset issuer node in the alliance block chain verifies the converted transaction order according to digital asset transaction rules which are commonly identified by the alliance block chain and public keys of the first node and the second node;

wherein the digital asset transaction rules comprise actual exchange rates between digital assets within corresponding exchange rate intervals;

the digital asset issuer node is a node in a digital asset issuer organization; the first node and the second node are digital asset holder nodes.

Further, the first node and the second node executing a conversion intelligent contract pre-deployed in a federation blockchain to generate a conversion transaction order comprises:

sending, by the first node, a digital asset to be converted by the first node into an address of the converted smart contract through a federation blockchain-based transaction;

sending, by the second node, a digital asset to be converted by the second node into an address of the converted smart contract through a federation blockchain-based transaction;

and exchanging two digital assets to be exchanged in the intelligent contract address by the transaction based on the alliance block chain, and then respectively sending the two digital assets to be exchanged to the first node and the second node to generate an exchange transaction list.

Further, the exchange rate is calculated in real time and displayed on the digital asset trading platform according to the digital asset supply amount, the universal currency value of the digital asset, the digital asset demand amount and the integrity of the digital asset issuer.

Further, updating the exchange rate interval in the digital asset transaction rule according to the exchange rate calculated in real time.

Further, the method further comprises:

the digital asset issuer node issues a predetermined number of digital assets to digital asset holder nodes in a federation blockchain through a digital asset issuance transaction based on the federation blockchain.

Further, the digital asset issuer node issuing a predetermined number of digital assets to digital asset holder nodes in a federation blockchain through a federation blockchain-based digital asset issuance transaction includes:

the digital asset issuer node initiates a digital asset issuance transaction based on a federation blockchain to the digital asset holder node to generate an issuance transaction sheet including a private key signature of the digital asset issuer node, a type and quantity of the digital asset, and an address of the digital asset holder node;

and when the issued transaction sheet is verified by the block chain of the alliance, the digital asset holder node acquires the digital asset according to the public key of the digital asset issuer.

Further, one of the digital asset holder nodes owns at least one type of digital asset.

Further, all intelligent contracts deployed in a federation blockchain set a contract interface for querying information on the federation blockchain and returning results of intelligent contract execution to the federation blockchain.

In a second aspect, there is provided a computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement a method as defined in any one of the above.

The method and the system for realizing the intelligent contract are based on a consensus mechanism and are used for deploying the intelligent contract on the block chain of the alliance, so that the intelligent contract is automatically executed by the digital asset holder node which is successfully matched on the digital asset transaction platform node, and the exchange of the digital assets of different types is completed. Therefore, the embodiment of the application realizes that different types of digital assets can be intercommunicated and used in the alliance block chain, improves the use efficiency of the digital assets, and simultaneously ensures the safety problem among the digital asset issuer nodes by deploying the alliance block chain.

Drawings

The above and other objects, features and advantages of the present application will become more apparent from the following description of embodiments thereof with reference to the accompanying drawings, in which:

FIG. 1 is a schematic diagram of a federation blockchain system for digital asset interworking in an embodiment of the present application;

FIG. 2 is a flow diagram of a method for a digital asset issuer node joining a federation blockchain according to an embodiment of the present application;

FIG. 3 is a flow diagram of a method of digital asset issuance in an embodiment of the present application;

FIG. 4 is a flow chart of a method of digital asset interworking of an embodiment of the present application;

FIG. 5 is a flow diagram of a method for redemption smart contract execution according to an embodiment of the present application;

fig. 6 is a schematic diagram of an electronic device according to an embodiment of the present application.

Detailed Description

The present application is described below based on examples, but the present application is not limited to only these examples. In the following detailed description of the present application, certain specific details are set forth in detail. It will be apparent to one skilled in the art that the present application may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present application.

Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".

In the description of the present application, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present application, "a plurality" means two or more unless otherwise specified.

Fig. 1 is a schematic diagram of a digital asset interworking federation blockchain system according to an embodiment of the present application. As shown in fig. 1, in the alliance blockchain system, a digitalasset issuer organization 11, a digitalasset holder organization 12 and a digital assettrading platform node 13 are included. Thedigital asset issuer 11 is a central node in the federation blockchain system, and all transactions in the federation blockchain can be successfully transacted only after being verified by thedigital asset issuer 11. Moreover, the new digital asset issuer node requests to join the digitalasset issuer organization 11, and is authenticated by the digitalasset issuer organization 11 and granted a certificate before the right to validate the transaction or the like is exercised. The member nodes in the digitalasset holder organization 12 are common nodes in the federation blockchain, and the nodes in the digitalasset holder organization 12 have functions of inquiring the conversion rate of the digital assets and performing digital asset conversion in the federation blockchain, but cannot verify transactions and participate in the deployment of intelligent contracts. The digital assettransaction platform node 13 is configured to receive a digital asset exchange request from a node in the digitalasset holder organization 12, and perform matching transaction on a digital asset holder node matching in the exchange request. Meanwhile, the digital assettransaction platform node 13 is further configured to publish, in real time, exchange rates and exchange rate intervals for exchanging different digital assets.

The digitalasset issuer organization 11 includes a digital asset issuer node a, a digital asset issuer node B, a digital asset issuer node C, a digital asset issuer node D, and the like. Digitalasset holder organization 12 includes a first node a and a second node b. Wherein each node in the digital asset issuer organization is configured to issue a predetermined number of digital assets to nodes in the digital asset holder organization upon satisfaction of a predetermined condition. For example, the digital asset holder corresponding to the first node a consumes at the merchant corresponding to the digital asset issuer node a, the digital asset issuer node a issues the corresponding digital asset a (such as points, etc.) to the first node a according to the consumption amount, and similarly, the digital asset issuer node B issues the corresponding digital asset B to the second node B according to the consumption amount.

The digital asset holder corresponding to the first node a can utilize the digital asset A to perform re-consumption at the merchant corresponding to the digital asset issuer node A, and the digital asset holder corresponding to the second node B can utilize the digital asset B to perform re-consumption at the merchant corresponding to the digital asset issuer node B. The first node a and the second node b can acquire the required digital assets by exchanging the digital assets. For example, the first node a and the second node B realize the exchange of the digital asset a and the digital asset B by matching the transactions. The first node a transmits a digital asset conversion transaction request a including the type a and the number of digital assets a to be converted and the type B and the number (or the number range) of digital assets B to be converted to the digital assetconversion platform node 13. The second node B transmits a digital asset conversion transaction request B including the type B and the number of digital assets B to be converted and the type a and the number (or the number range) of digital assets a to be converted to the digital assetconversion platform node 13. The digital assettransaction platform node 13 queries each digital asset conversion request and conducts matching transactions on the matched digital asset conversion requests. When the digital asset conversion request A and the digital asset conversion request B are matched, the digital assettransaction platform node 13 feeds back a message of successful matching to the first node a and the second node B. The first node a and the second node b execute the converted intelligent contracts which are deployed in the federation blockchain in advance to generate converted transaction sheets. The converted transaction sheet comprises a private key signature and address of the first node a, the type A and the number of the digital assets A, a private key signature and address of the second node B, and the type B and the number of the digital assets B.

When the node in the digitalasset issuer organization 11 in the federation blockchain verifies the converted transaction sheet and passes the verification, the digital asset transaction between the first node a and the second node B is successful, at this time, the digital asset holder corresponding to the first node a can use the digital asset B to perform re-consumption at the merchant corresponding to the digital asset issuer node B, and the digital asset holder corresponding to the second node B can use the digital asset a to perform consumption at the merchant corresponding to the digital asset issuer node a.

And the digital assettransaction platform node 13 uploads the digital asset exchange requests of the first node a and the second node b to the alliance block chain for evidence storage after carrying out hash operation, so that the authenticity and the safety of transaction are ensured. The node in the digital asset issuing and issuingorganization 11 verifies the converted transaction order according to the digital asset transaction rule commonly recognized by the alliance block chain and the public keys of the first node a and the second node b. If the converted transaction order can be decrypted through the public keys of the first node a and the second node b, the transaction between the first node a and the second node b is proved to be really existed. And after the converted transaction list is decrypted, the transaction quantity of the digital asset A and the digital asset B which are converted between the first node a and the second node B can be obtained, the actual conversion rate of the transaction is calculated according to the transaction quantity, whether the conversion rate is in the conversion rate interval of the current digital asset A and the current digital asset B or not is judged, and if yes, the converted transaction list is verified through the block chain of the alliance. The digital asset redemption transaction between the first node a and the second node b is successful. Wherein the exchange rates of the different digital assets are calculated in real time according to the digital asset supply amount, the universal currency value of the digital assets, the digital asset demand amount and the integrity of the digital asset issuer. It should be understood that the digital asset supply amount, the universal monetary value of the digital asset, the digital asset demand amount, and the integrity of the digital asset issuer each take different weights.

It should be understood that a digital asset holder node may place digital assets in a federation blockchain wallet, and a digital asset holder node's federation blockchain wallet may place different types of digital assets, the different types of digital assets having unique type indicia in the federation blockchain wallet.

Further, in the federation blockchain, the digital asset holder nodes can conduct point-to-point transactions, that is, "acquaintance transactions," in addition to matching transactions through the digital assettransaction platform node 13. And obtaining information of mutually owned corresponding digital assets through a down-link channel (such as communication modes of telephone, mail and the like), and achieving a conversion agreement, and then triggering a conversion intelligent contract in the alliance block chain to carry out transaction. The verification of such transactions is consistent with the verification of matching transactions. Therefore, the digital asset transaction between acquaintances does not need to be matched, the method is more convenient and faster, and the efficiency of digital asset exchange is improved.

Further, a gifting mechanism is also included in the federation blockchain, a gifting intelligent contract is deployed in the federation blockchain, and after execution of the gifting intelligent contract by the transaction parties, the digital assets of one party can be transferred to the other party. However, the digital assets in the gift transaction do not participate in the calculation of the exchange rate to avoid affecting the normal exchange rate between different digital assets.

Further, in the federation blockchain, the digitalasset issuer organization 11 may specify a universal digital asset that may be consumed at any digital asset issuer node in the federation blockchain. The digital asset holder node may redeem the universal digital asset by executing a pre-deployed universal redemption intelligence contract. The exchange rates of various digital assets and general digital assets are changed in real time according to the reality and are issued through the digital assettransaction platform node 13. This enables the uniformity of different digital assets within the federation blockchain to be achieved, improving the efficiency of digital asset transactions.

All intelligent contracts deployed in a federation blockchain set a contract interface for querying information on the federation blockchain and returning results of intelligent contract execution to the federation blockchain.

Fig. 2 is a flow chart of a method for a digital asset issuer node to join a federation blockchain according to an embodiment of the present application. As shown in fig. 2, at step S110, the new digital asset issuer node applies for joining the digital asset issuer organization to the federation blockchain. Specifically, when a new digital asset issuer node issues an application, qualification materials, such as business certificates and business conditions of the digital asset issuer node, should be submitted, and the qualification materials are hashed and uploaded to the federation block chain credit.

At step S120, the member of the federation blockchain (i.e., the member of the digital asset issuer organization) reviews the qualification material of the new digital asset issuer.

At step S130, it is determined whether the new digital asset issuer node is verified. If the verification is passed, step S140 is executed. Otherwise, step S150 is executed.

At step S140, the digital asset issuer organization issues a CA certificate to the new digital asset issuer node. At this point, the new digital asset issuer node joins the digital asset issuer organization and, in turn, has the right to validate transactions for digital asset issuance and redemption in the federation blockchain, as well as participate in deploying related intelligent contracts.

At step S150, the new digital asset issuer node applies for a failure to join the digital asset issuer organization.

The federation blockchain guarantees security issues between digital asset issuer nodes by strictly auditing and verifying members joining the digital asset issuer organization.

In addition, when a digital asset holder joins a federation blockchain, the digital asset holder needs to register to obtain the identity of the federation blockchain. At registration, the digital asset holder needs to submit the real name, the identification document number, and a biometric (e.g., fingerprint, face, or iris, etc.). After the actual information of the digital asset holders is verified, the hash operation is carried out to obtain the identity hash value of the digital asset holders, and the identity hash value can be used as the unique identity of the digital asset holders in the block chain of the alliance.

FIG. 3 is a flow diagram of a method of digital asset issuance in an embodiment of the present application. As shown in fig. 3, the digital asset issuer node performs a digital asset issuance transaction with the digital asset holder node to generate an issuance transaction sheet at step S210. The issuance transaction sheet includes the private key signature of the digital asset issuer node, the type and quantity of the digital asset, and the address of the digital asset holder node. Specifically, after a digital asset holder corresponding to the digital asset holder node consumes at a merchant corresponding to the digital asset issuer node, the digital asset issuer node initiates a digital asset issuance transaction based on the federation blockchain to the digital asset holder node. And generating an issuing transaction list after the transaction is executed.

At step S220, the federation blockchain member node verifies the issued transaction ticket. In particular, the digital asset issuer organization validates the issue transaction slip with the public key of the digital asset issuer node. If the verification is passed, the digital asset issuer node may obtain the digital asset by decrypting the issuance transaction ticket.

The digital asset holder node can place the digital asset in a federation blockchain wallet, and the federation blockchain wallet of the digital asset holder node can place a different type of digital asset, the different type of digital asset having a unique type tag in the federation blockchain wallet.

Fig. 4 is a flow chart of a method of digital asset interworking in an embodiment of the present application. Fig. 5 is a flow chart of a method for executing a redemption smart contract according to an embodiment of the application. As shown in fig. 4, the digital asset issuer node a performs a digital asset issuance transaction based on the federation blockchain with the first node to generate a first issuance transaction slip at step S100. The first issue transaction sheet includes a private key signature of the digital asset issuer node a, the type a of the digital asset and the number of digital assets a, and the address of the first node. Specifically, after the digital asset holder corresponding to the first node consumes at the merchant corresponding to the digital asset issuer node a, the digital asset issuer node a initiates a digital asset issuance transaction based on the federation blockchain to the first node. And generating a first issuing transaction list after the transaction is executed.

In step S200, the first transaction order is broadcast over the network, and the members of the federation blockchain verify the first transaction order. Specifically, the digital asset issuer organization validates the first issued transaction order with the public key of the digital asset issuer node a. If the verification is passed, the first node may obtain a predetermined number of digital assets A by decrypting the issued transaction sheet.

At step S300, the digital asset issuer node B performs a digital asset issuance transaction based on the federation blockchain with the second node to generate a second issuance transaction ticket. The second issuance transaction sheet includes the private key signature of the digital asset issuer node B, the type B of the digital asset and the number of digital assets B, and the address of the second node.

In step S400, the second transaction order is broadcast over the network and the federation blockchain members verify the second transaction order. Specifically, the digital asset issuer organization validates the second issue transaction slip with the public key of the digital asset issuer node B. If the verification is passed, the second node may obtain a predetermined number of digital assets B by decrypting the issued transaction sheet.

At step S500, the first node transmits a digital asset exchange request to the digital asset transaction platform node. The digital asset redemption request includes an address of the first node, a type a of digital asset to be redeemed and a number of digital assets a, and a type B of digital asset to be redeemed and a number (or range of numbers) of digital assets B.

At step S600, the second node sends a digital asset exchange request to the digital asset transaction platform node. The digital asset redemption request includes the address of the second node, the type B of digital asset to be redeemed and the number of digital assets B and the number (or range of numbers) of digital assets a and type a of digital asset to be redeemed.

In step S700, the digital asset exchange requests of the first node and the second node are subjected to hash operation and then uploaded to the federation block chain for evidence storage.

In step S800, the first node and the second node execute the pre-deployed exchange intelligent contract to generate an exchange transaction order. The converted transaction sheet comprises a private key signature and address of the first node, the type A and the number of the digital assets A of the digital assets, a private key signature and address of the second node, the type B and the number of the digital assets B of the digital assets. Specifically, the digital asset transaction platform node queries each digital asset conversion request and conducts matching transactions on the matched digital asset conversion requests. And when the digital asset conversion request of the first node is matched with the digital asset conversion request of the second node, the first node and the second node execute a conversion intelligent contract which is pre-deployed in the federation block chain to generate a conversion transaction sheet.

In step S900, the converted transaction order is broadcast over the entire network, and the members of the federation blockchain verify the converted transaction order. Specifically, the node in the digital asset issuing organization verifies the converted transaction order according to the digital asset transaction rule commonly recognized by the alliance block chain and the public keys of the first node and the second node. And if the converted transaction order can be decrypted through the public keys of the first node and the second node, the transaction between the first node and the second node is proved to be really existed. And after the converted transaction list is decrypted, the transaction quantity of the digital asset A and the digital asset B which are converted between the first node and the second node can be obtained, the conversion rate of the transaction is calculated according to the transaction quantity, whether the conversion rate is in the conversion rate interval of the current digital asset A and the current digital asset B or not is judged, and if the conversion rate is in the conversion rate interval, the converted transaction list is verified through the alliance block chain. The digital asset redemption transaction between the first node and the second node is successful. Wherein the exchange rates of the different digital assets are calculated in real time according to the digital asset supply amount, the universal currency value of the digital assets, the digital asset demand amount and the integrity of the digital asset issuer. It should be understood that the digital asset supply amount, the universal monetary value of the digital asset, the digital asset demand amount, and the integrity of the digital asset issuer each take different weights.

For example, a digital asset issuer node a issued 1000 digital assets a to a first node. The digital asset issuer node B issued 5000 digital asset bs to the second node. The exchange rate of the digital assets a and B issued at the current digital asset trading platform node is 1/3 (i.e., 1 digital asset a can be exchanged for 3 digital assets B). In a federation blockchain consensus redemption transaction, the actual redemption rates of different digital assets during the redemption process can only float 5% above or below the issued redemption rate. That is, the current digital asset exchange rate interval is [ 1/3-5%, 1/3+ 5% ]. At the moment, the first node and the second node execute a conversion intelligent contract to convert the digital assets A and B. The number of the digital assets A in the generated conversion transaction list is 1000, and the number of the digital assets B is 3200. In the transaction between the first node and the second node, the actual exchange rate of the digital asset a and the digital asset B is 1000/3200 ═ 0.3125>1/3-5 ═ 0.2833. Thus, the redemption transaction of the first node with the second node is valid.

Further, the method of digital asset interworking further includes step SA00, and the first node performs peer-to-peer "acquaintance trading" with the second node at step SA 00. Specifically, digital asset holders corresponding to the first node and the second node obtain information that each other has corresponding digital assets through a link-down channel (such as communication modes of telephone, mail and the like), reach a conversion agreement, and then trigger a conversion intelligent contract in a federation blockchain to perform a transaction. The verification of such transactions is consistent with the verification of matching transactions. Therefore, the digital asset transaction between acquaintances does not need to be matched, the method is more convenient and faster, and the efficiency of digital asset exchange is improved.

Further, the method of interworking digital assets further includes step SB00, and at step SB00, the first node conducts a gift transaction with the second node. Specifically, after the first node and the second node execute the gifting intelligent contract, the digital assets of one party can be transferred to the other party. However, the digital assets in the gift transaction do not participate in the calculation of the exchange rate to avoid affecting the normal exchange rate between different digital assets.

Further, the method of digital asset interworking further includes step SC00, and at step SC00, the first node executes a pre-deployed universal exchange intelligence contract to exchange the universal digital asset. A federation blockchain can specify a universal digital asset that can be consumed at a merchant corresponding to any digital asset issuer node in the federation blockchain. The exchange rates of various digital assets and universal digital assets are changed in real time according to the reality and are issued through the digital asset transaction platform nodes. This enables the uniformity of different digital assets within the federation blockchain to be achieved, improving the efficiency of digital asset transactions.

It should be understood that the above steps do not indicate the order of execution, for example, step S100 and step S300 may be executed simultaneously, step S100 may be executed before step S, or step S300 may be executed before step S.

In the method of digital asset interworking, the step S800 further includes the steps of:

as shown in fig. 5, at step S810, the digital asset to be redeemed is sent by the first node of the federation blockchain-based transaction to the address of the redemption smart contract.

At step S820, the digital assets to be converted are sent to the address of the conversion intelligent contract by the second node of the transaction based on the federation blockchain.

In step S830, two kinds of digital assets to be exchanged in the intelligent contract address are exchanged and then respectively sent to the first node and the second node to generate an exchange transaction order through the transaction based on the federation blockchain. The converted transaction list comprises private key signatures and addresses of the first node and the second node and types and numbers of digital assets to be converted by the first node and the second node respectively.

Fig. 6 is a schematic diagram of an electronic device according to an embodiment of the present application. The electronic device shown in fig. 6 is a general-purpose data processing apparatus comprising a general-purpose computer hardware structure including at least a processor 61 and a memory 62. The processor 61 and the memory 62 are connected by a bus 63. The memory 62 is adapted to store instructions or programs executable by the processor 61. The processor 61 may be a stand-alone microprocessor or a collection of one or more microprocessors. Thus, the processor 61 implements the processing of data and the control of other devices by executing instructions stored by the memory 62 to perform the method flows of embodiments of the present invention as described above. The bus 63 connects the above components together, and also connects the above components to a display controller 64 and a display device and an input/output (I/O) device 65. Input/output (I/O) devices 65 may be a mouse, keyboard, modem, network interface, touch input device, motion sensing input device, printer, and other devices known in the art. Typically, the input/output device 65 is connected to the system through an input/output (I/O) controller 66.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, apparatus (device) or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may employ a computer program product embodied on one or more computer-readable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations of methods, apparatus (devices) and computer program products according to embodiments of the application. It will be understood that each flow in the flow diagrams can be implemented by computer program instructions.

These computer program instructions may be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows.

These computer program instructions may also be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method of digital asset interworking, comprising:

the digital asset transaction platform node uploads the digital asset exchange requests of the first node and the second node to a alliance block chain after carrying out hash operation, and the digital asset issuer node is a node in a digital asset issuer organization; the first node and the second node are digital asset holder nodes; the digital asset transaction rules include actual exchange rates between digital assets within corresponding exchange rate intervals; the conversion rate is calculated in real time according to the digital asset supply amount, the universal currency value of the digital asset, the digital asset demand amount and the integrity of the digital asset issuer and displayed on the digital asset transaction platform.

2. The method of digital asset interworking as in claim 1, wherein the first node and the second node executing a redemption smart contract pre-deployed in a federation blockchain to generate a redemption transaction ticket comprises:

3. The digital asset interworking method of claim 1, wherein the exchange rate interval in the digital asset transaction rule is updated according to the exchange rate calculated in real-time.

4. The digital asset interworking method of claim 1, wherein the method further comprises:

5. The digital asset interworking method of claim 4, wherein the digital asset issuer node issuing a predetermined number of digital assets to digital asset holder nodes in a federation blockchain through a federation blockchain-based digital asset issuance transaction comprises:

6. The digital asset interworking method of claim 4 or 5, wherein one of the digital asset holder nodes owns at least one type of digital asset.

7. A digital asset interworking method according to claim 1 or 3, wherein all intelligent contracts deployed in a federation blockchain set a contract interface for querying information on the federation blockchain and returning the results of the execution of the intelligent contracts to the federation blockchain.

8. A computer-readable storage medium on which computer program instructions are stored, which computer program instructions, when executed by a processor, implement the method of any one of claims 1-7.