CN115860884A - Method and device for processing digital resources in block chain system - Google Patents

Abstract

The embodiment of the specification provides a method and a device for processing digital resources in a block chain system. The method is applied to a node in the blockchain system and comprises the following steps of storing first resource information of a first digital resource in the blockchain system, deploying intelligent contracts for digital resource processing, wherein the first digital resource is held by a first user and corresponds to a first virtual article, and the first resource information comprises a first resource identifier: receiving a first transaction of a first digital resource rented from a first user to a second user, wherein the first transaction calls the intelligent contract and comprises a first account of the first user, a second account of the second user, a first resource identifier and return time; by performing the first transaction, the first resource information is stored in association with the second account in the blockchain system and a return event is created for returning the first digital resource upon arrival at a return time such that the second user has usage rights to the first virtual item during the rental period.

Description

Method and device for processing digital resources in block chain system

Technical Field

The embodiment of the present specification belongs to the technical field of blockchain, and in particular, relates to a method and an apparatus for processing digital resources in a blockchain system.

Background

The Blockchain (Blockchain) is a novel application mode of computer technologies such as distributed data storage, point-to-point transmission, a consensus mechanism, an encryption algorithm and the like. The data blocks are combined into a chain data structure in a block chain in a time sequence and a sequential connection mode, and the data blocks are guaranteed to be not falsified and not forged in a cryptographic mode. Because the blockchain has the characteristics of decentralization, information non-tampering, autonomy and the like, the blockchain is also paid more and more attention and is applied by people.

In the block chain system, a digital resource can be generated based on Non-homogeneous Tokens (NFT) technology, and the digital resource is generally characterized by irreplaceability.

Disclosure of Invention

The invention aims to provide a digital resource processing scheme in a blockchain system, which can enrich the digital resource processing mode in the blockchain system, can make a virtual article have fluidity and can avoid the permanent loss risk of the virtual article due to lending the virtual article to other people.

A first aspect of the present specification provides a method for processing a digital resource in a blockchain system, in which first resource information of a first digital resource is stored and an intelligent contract for digital resource processing is deployed, the first digital resource being held by a first user and corresponding to a first virtual item, the first resource information including a first resource identifier, the method being applied to a node in the blockchain system, and including: receiving a first transaction of the first user renting the first digital resource to a second user, the first transaction invoking the smart contract and including a first account of the first user, a second account of the second user, the first resource identification, and a return time; storing the first resource information in association with the second account in the blockchain system by executing the first transaction and creating a return event for returning the first digital resource upon reaching the return time such that the second user has usage rights for the first virtual item during the rental period.

A second aspect of the present specification provides a digital resource processing apparatus in a blockchain system, in which first resource information of a first digital resource is stored and an intelligent contract for digital resource processing is deployed, the first digital resource being held by a first user and corresponding to a first virtual item, the first resource information including a first resource identifier, the apparatus being applied to a node in the blockchain system, including: a receiving unit configured to receive a first transaction of the first digital resource rented by the first user to a second user, the first transaction invoking the smart contract and including a first account of the first user, a second account of the second user, the first resource identification, and a return time; a transaction execution unit configured to store the first resource information in association with the second account in the blockchain system by executing the first transaction, and create a return event for returning the first digital resource when the return time is reached, so that the second user has a usage right for the first virtual item during rental.

A third aspect of the present specification provides a computer-readable storage medium having stored thereon a computer program which, when executed on a computer, causes the computer to perform a method as described in any implementation of the first aspect.

A fourth aspect of the present specification provides a computing device comprising a memory and a processor, wherein the memory stores executable code, and the processor executes the executable code to implement the method as described in any implementation manner of the first aspect.

A fifth aspect of the present description provides a computer program which, when executed on a computer, causes the computer to perform the method as described in any one of the implementations of the first aspect.

In the solution provided in the embodiment of the present specification, by carrying the return time in the transaction of renting the NFT resource and creating the return event of returning the NFT resource when the return time is reached in the process of executing the transaction, the block chain node can be triggered to automatically trigger the return of the NFT resource when the lease expires, so that the security of the virtual article of the user is ensured, the virtual article has circulation, the risk of permanent loss of the virtual article due to the virtual article being lent to another person is avoided, and the problem that the virtual article is difficult to recover after being illegally destroyed or transferred can be overcome. The scheme can also enrich the digital resource processing mode in the block chain system.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments described in the present disclosure, and it is obvious for a person skilled in the art to obtain other drawings based on these drawings without inventive labor.

FIG. 1 is a block chain architecture diagram in one embodiment;

FIG. 2 is a schematic diagram of one application scenario in which embodiments of the present description may be applied;

FIG. 3 is a flowchart of a method for processing digital resources in a blockchain system according to an embodiment of the present disclosure;

FIG. 4 is a flowchart of a method for processing digital resources in a blockchain system according to an embodiment of the present disclosure;

FIG. 5 is a flowchart of a method for processing digital resources in a blockchain system according to an embodiment of the present disclosure;

FIG. 6 is a flowchart of a method for processing digital resources in a blockchain system according to an embodiment of the present disclosure;

FIG. 7 is a flowchart of a method for processing digital resources in a blockchain system according to an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of a digital resource processing apparatus in a blockchain system according to an embodiment of the present disclosure.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present specification, the technical solutions in the embodiments of the present specification will be clearly and completely described below with reference to the drawings in the embodiments of the present specification, and it is obvious that the described embodiments are only a part of the embodiments of the present specification, and not all of the embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments in the present specification without any inventive step should fall within the scope of protection of the present specification.

FIG. 1 illustrates a block chain architecture diagram in one embodiment. In the blockchain architecture diagram shown in fig. 1, a blockchain 100 includes N nodes, which are schematically shown as nodes 1-8 in fig. 1. The connecting lines between the nodes schematically represent P2P (Peer to Peer) connections, which may be, for example, TCP connections or the like, for transmitting data between the nodes. The nodes may have a full ledger stored on them, i.e. the status of all blocks and all accounts. Wherein each node in the blockchain can generate the same state in the blockchain by performing the same transaction, and each node in the blockchain can store the same state database.

A transaction in the blockchain domain may refer to a unit of task that is performed in the blockchain and recorded in the blockchain. The transaction typically includes a send field (From), a receive field (To), and a Data field (Data). Where the transaction is a transfer transaction, the From field indicates the address of the account From which the transaction was initiated (i.e., from which a transfer task To another account was initiated), the To field indicates the address of the account From which the transaction was received (i.e., from which a transfer was received), and the Data field includes the transfer amount.

The block chain may provide the functionality of an intelligent contract. An intelligent contract on a blockchain is a contract that can be executed on a blockchain system triggered by a transaction. An intelligent contract may be defined in the form of code. Calling the intelligent contract in the block chain is to initiate a transaction pointing to the intelligent contract address, so that each node in the block chain runs the intelligent contract code in a distributed mode.

In the scenario of contract deployment, for example, bob sends a transaction containing information to create an intelligent contract (i.e., a deployment contract) into the blockchain as shown in fig. 1, the data field of the transaction includes the code (e.g., bytecode or machine code) of the contract to be created, and the to field of the transaction is null to indicate that the transaction is for contract deployment. After the agreement is achieved among the nodes through a consensus mechanism, a contract address 0x6f8ae93 \ 8230of a contract is determined, each node adds a contract account corresponding to the contract address of the intelligent contract in a state database, allocates state storage corresponding to the contract account, stores contract codes, and stores hash values of the contract codes in the state storage of the contract, so that the contract is successfully created.

In the scenario of invoking a contract, for example, bob sends a transaction for invoking a smart contract into the blockchain as shown in fig. 1, where the from field of the transaction is the address of the account of the transaction initiator (i.e., bob), the to field is "0x6f8ae93 \8230", as described above, i.e., the address of the invoked smart contract, and the data field of the transaction includes the method and parameters for invoking the smart contract. After the transaction is identified in the blockchain, each node in the blockchain can execute the transaction respectively, so that the contract is executed respectively, and the state database is updated based on the execution of the contract.

As mentioned above, in the blockchain system, digital resources can be generated based on the NFT technology, and the digital resources are generally characterized by non-replaceability. Currently, virtual objects (such as music, video or game items) are often difficult to access and easy to lose, for example, the virtual objects are usually in danger of being permanently lost by lending to others. The game item may also be referred to as a virtual item, which generally refers to clothing, equipment, a seat, a pet, or the like that a player obtains for a character through a certain channel in a game. In order to avoid the risk of permanent loss of a virtual article due to lending to another person, embodiments of the present specification provide a digital resource processing scheme in a blockchain system, where the scheme may digitally recycle the virtual article, and the digital resource corresponding to the virtual article may be managed by an intelligent contract, for example, the digital resource may be lent, returned, and the like by the intelligent contract.

Referring to fig. 2, there is a schematic diagram of one application scenario to which embodiments of the present specification may be applied. In the application scenario shown in fig. 2, a device 21 used by the User1, a device 22 used by the User2, and a blockchain system 23 may be included. The block chain system 23 may include N nodes, which are deployed with NFT smart contracts, and store resource information of the digital resource Dr1 held by the User1. For the explanation of the N nodes, reference may be made to the related description in the foregoing, and details are not repeated here.

An NFT smart contract may be understood as a smart contract based on NFT technology, which employs an ERC (etherum Request for Comment) standard, for example, the ERC-721 standard or the ERC-998 standard, etc. The ERC may represent a protocol proposal submitted by an etherhouse developer, and includes technical and organizational cautions and standards.

Digital resource Dr1 corresponds to virtual article Vg1, which may be generated based on NFT techniques. Herein, the digital resource in the embodiments of the present specification may also be referred to as NFT resource. The virtual article Vg1 may be an audio, a video, or a virtual prop, and is not limited in this respect. The resource information for digital resource Dr1 may include a resource identification for digital resource Dr1. Further, the resource information may further include at least one of: identity information of the User1, acquisition time of the User1 on the virtual article Vg1, and metadata of the virtual article Vg 1. In one example, the resource identification may be generated based on at least part of the metadata of the virtual article Vg 1. The metadata of the virtual article Vg1 may describe information such as the attribute of the virtual article Vg 1. When virtual article Vg1 is a virtual item, the metadata of virtual article Vg1 may include, for example, an item name, an item type, a file type, attribute information, and the like. The attribute information may include, for example, at least one of: speed information, function introduction, image information, model information, motion information, and the like.

NFT smart contracts may be used for digital resource processing, such as processing for lending, returning, transferring, viewing, issuing, destroying, etc. of digital resources. As an example, when User2 rents digital resource Dr1 to User1, if User1 agrees to rent digital resource Dr1, user1 may initiate a transaction Tx1 that rents digital resource Dr1 to User2 using device 21 to a node in blockchain system 23, where transaction Tx1 may include account Ac1 of User1, account Ac2 of User2, resource identification Id1 of digital resource Dr1, and a return time. Thereafter, the node in blockchain system 23 may invoke NFT smart contract to correspondingly lease digital resource Dr1 by executing transaction Tx1.

The following describes a digital resource processing scheme provided in the embodiments of the present specification with reference to specific embodiments.

In one embodiment, digital resource Dr1 may be obtained by User1 from another User. The other users may be individual users or organizations, and are not limited in this respect. Assuming that the original owner of digital resource Dr1 is the target institution, when User1 obtains digital resource Dr1 from the target institution, user1 or the target institution may invoke the NFT Smart contract to transfer digital resource Dr1 from account Ac3 of the target institution to account Ac1 of User1. In the following, an example is given in which User1 calls the NFT smart contract to transfer the digital resource Dr1 from the account Ac3 to the account Ac1, which is described with reference to fig. 3.

Referring to fig. 3, it is a flowchart of a digital resource processing method in a block chain system in the embodiment of the present specification.

As shown in fig. 3, first, at step S301, user1 sends a transaction Tx5 for the target authority to transfer digital resource Dr1 to User1 to a node in the blockchain system, transaction Tx5 invoking the NFT smart contract and including account Ac1 of User1, account Ac3 of the target authority, and resource identification Id1 of digital resource Dr1.

In particular, user1 may send a transaction Tx5 to a node in the blockchain system through the equipment it uses. Wherein the device may send transaction Tx5 directly to the node, or the device may send transaction Tx5 to the node via an intermediate platform. The intermediate platform may be a digital resource trading platform or a platform for users to use virtual goods, etc. As an example, when the virtual item is a virtual item, the platform for the user to use the virtual item may be a game platform. When the virtual item is a video, the platform for the user to use the virtual item may be, for example, a video platform. The account Ac1 and the account Ac3 may be external accounts or contract accounts, and are not particularly limited herein.

At step S303, the node in the blockchain system stores the resource information of digital resource Dr1 in association with account Ac1 in the blockchain system by performing transaction Tx5.

Specifically, the resource information of the digital resource Dr1 may be stored in association with the account Ac1 in the contract state of the NFT smart contract, or may be written in the state of the account Ac1. Wherein the resource information may include a resource identification Id1 of the digital resource Dr1. Further, the resource information may also include metadata of the virtual article Vg 1. The resource identification Id1 may for example be generated based on at least part of the metadata of the virtual article Vg 1. It should be noted that, by generating the resource identifier Id1 based on at least part of the metadata of the virtual article Vg1, the virtual article Vg1 can be prevented from being maliciously tampered, such as preventing some important attributes of the virtual article Vg1 from being tampered. By storing the resource information for digital resource Dr1 in association with account Ac1 in the blockchain system, it can be shown that digital resource Dr1 is held by User1, and that User1 owns ownership of digital resource Dr1 and virtual article Vg 1.

In one embodiment, the virtual article Vg1 may be obtained by User1 from another User. The other users may be individual users or organizations, and are not limited in this respect. When User1 obtains the ownership of virtual article Vg1, user1 can use the resource processing process shown in fig. 4 to chain credit on virtual article Vg1, so that the problems that the virtual article cannot be authenticated and is easy to lose can be solved, and the problem that the virtual article is difficult to recover after being illegally destroyed or transferred can be overcome.

In particular, refer to fig. 4, which is a flowchart of a digital resource processing method in a block chain system in an embodiment of the present specification.

As shown in fig. 4, first, in step S401, user1 sends a transaction Tx6 for crediting a virtual good Vg1 to a node in the block chain system, where the transaction Tx6 calls an NFT smart contract and includes an account Ac1 of User1 and a resource identification Id1 generated by User1 for a digital resource Dr1 corresponding to the virtual good Vg 1.

Where User1 may send a transaction Tx6 to a node in the blockchain system through the equipment it uses. The device may send transaction Tx6 directly to the node, or the device may send transaction Tx6 to the node via an intermediate platform. The resource identification Id1 may be generated based on at least part of the metadata of the account Ac1 and the virtual good Vg 1. In one example, the resource identification Id1 may be a hash value calculated by hashing the account Ac1 and the at least part of the metadata.

At step S403, the node in the blockchain system stores the resource information of digital resource Dr1 in association with account Ac1 in the blockchain system by performing transaction Tx6.

Specifically, the resource information of the digital resource Dr1 may be stored in association with the account Ac1 in the contract state of the NFT smart contract, or may be written into the state of the account Ac1. The resource information of the digital resource Dr1 may include a resource identifier Id1. Further, the transaction Tx6 may further include metadata of the virtual article Vg1, and the resource information may further include the metadata.

In practice, for a digital resource corresponding to a virtual article held by a user, the scheme provided by the embodiment of the present specification can implement the circulation of the virtual article corresponding to the digital resource. For example, the scheme enables users to sell, gift, or rent the digital asset to other users. By selling or giving away the digital resource to other users, the other users can be enabled to have ownership of the digital resource and the virtual article corresponding to the digital resource. By renting the digital resource to other users, the other users can have the use right of the virtual article corresponding to the digital resource in a period of time.

In one embodiment, when User1 decides to lease digital resource Dr1 to User2, user1 may lease digital resource Dr1 through the resource process shown in FIG. 5.

Referring to fig. 5, it is a flowchart of a digital resource processing method in a block chain system in the embodiment of the present specification.

As shown in fig. 5, first, at step S501, user1 sends a transaction Tx1 renting digital resource Dr1 to User2 to a node in the blockchain system, transaction Tx1 calls the NFT smart contract and includes account Ac1 of User1, account Ac2 of User2, resource identification Id1 of digital resource Dr1, and a return time.

In particular, user1 may send a transaction Tx1 to a node in the blockchain system through the equipment it uses. Wherein the device may send transaction Tx1 directly to the node, or the device may send transaction Tx1 to the node via an intermediate platform. The account Ac1 and the account Ac2 may be external accounts or contract accounts, and are not particularly limited herein.

At step S503, the node in the blockchain system stores the resource information of the digital resource Dr1 in association with the account Ac2 in the blockchain system by performing the transaction Tx1, and creates a return event for returning the digital resource Dr1 when the return time is reached, so that the User2 has usage rights to the virtual good Vg1 corresponding to the digital resource Dr1 during lease.

Specifically, the resource information of the digital resource Dr1 may be stored in association with the account Ac2 in the contract state of the NFT smart contract, or may be written in the state of the account Ac2. The created return event may be written in the transaction receipt for transaction Tx1. By creating the return event, the User2 can have the right of use of the virtual article Vg1 corresponding to the digital resource Dr1 during the period of renting the digital resource Dr1, so that the risk of permanent loss of the virtual article due to lending to other people can be effectively avoided.

According to the scheme provided by the embodiment corresponding to fig. 5, by carrying the return time in the transaction of renting the NFT resource and creating the return event of returning the NFT resource when the return time is reached in the process of executing the transaction, the block chain node can be triggered to automatically trigger the return of the NFT resource when the lease expires, so that the security of the virtual article of the user is ensured, the virtual article has liquidity, the permanent loss risk of the virtual article due to the loan to other people is avoided, and the problem that the virtual article is difficult to recover after being illegally destroyed or transferred can be overcome. The scheme can also enrich the digital resource processing mode in the block chain system.

In one embodiment, resource information of each of a plurality of digital resources held by User1 may be stored in the blockchain system. Digital resource Dr1 is included in the number of digital resources. Prior to step S501, a node in the blockchain system may receive a transaction Tx4 in which User1 obtains information of the held digital resource, transaction Tx4 invoking the NFT smart contract and including account Ac1. Then, the node may obtain information, including the resource identifier, of each of the several digital resources from the blockchain system by performing transaction Tx4, and return the obtained information to User1. Based on this, the resource identifier Id1 in the transaction Tx1 mentioned in step S501 may be selected by User1 from the acquired information.

It should be noted that, when the user needs to use the virtual article corresponding to the digital resource held by the user, a transaction similar to transaction Tx4 may be sent to the node in the blockchain system, so that the node returns the information of the digital resource held by the user. The information may include a resource identification of the digital resource. It should be noted that, without linking the metadata of the virtual article, the information does not include the metadata of the virtual article corresponding to the digital resource. In the case of chaining the metadata for the virtual item, the information may further include the metadata of the virtual item corresponding to the digital resource. When the metadata is included in the information, the user may use the virtual item based on the metadata in the information. When the metadata is not included in the information, the user may obtain the metadata from the target platform based on the resource identification in the information, thereby using the virtual item based on the metadata. The target platform may store a corresponding relationship between the resource identifier and metadata of a virtual article corresponding to the digital resource indicated by the resource identifier. In one example, the target platform may be a platform for a user to use a virtual item.

In one embodiment, after step S503, the nodes in the blockchain system may also automatically perform steps S505-S509 as shown in fig. 5 to return the digital resource Dr1.

Specifically, in step S505, a node in the blockchain system generates a transaction Tx2 for User2 to return the digital resource Dr1 to User1 upon reaching the return time in response to the return event, the transaction Tx2 invoking the NFT smart contract and including the account Ac1, the account Ac2, and the resource identification Id1.

In step S507, the node in the blockchain system sends transaction Tx2 to the blockchain system.

Wherein the transaction Tx2 may be broadcast in the blockchain system by sending the transaction Tx2 to the blockchain system. After the transaction Tx2 is packed into the consensus proposal and a predetermined number of nodes in the blockchain system agree on the consensus proposal, the nodes in the blockchain system may perform step S509.

At step S509, the node in the blockchain system removes the stored resource information of digital resource Dr1 associated with account Ac2 in the blockchain system by performing transaction Tx2, generates a return record that User2 returns digital resource Dr1 to User1, and stores the return record in the blockchain system.

Wherein when the resource information of the digital resource Dr1 is stored in association with the account Ac2 in the contract state of the NFT smart contract, the stored resource information associated with the account Ac2 may be removed in the contract state. When the resource information is written to the state of the account Ac2, the resource information may be removed from the state. The return record of User2 to User1 for the digital resource Dr1 may be written in the transaction receipt for transaction Tx2 or in the contract status for the NFT smart contract.

After User1 rents digital resource Dr1 to User2, when User2 wants to use the virtual article corresponding to the rented digital resource, information of the rented digital resource can be acquired from the block chain system, so that metadata of the virtual article is acquired based on the information, and the virtual article is used based on the metadata. Specifically, user2 can acquire information of the leased digital resources through a resource processing procedure as shown in fig. 6.

Referring to fig. 6, it is a flowchart of a digital resource processing method in a block chain system in the embodiment of the present specification.

As shown in fig. 6, first, at step S601, user2 sends transaction Tx3, which acquires information of the leased digital resource, to a node in the blockchain system, and transaction Tx3 invokes the NFT smart contract and includes account Ac2 of User 2.

In particular, user2 may send transaction Tx3 to a node in the blockchain system through the equipment it uses. Wherein the device may send transaction Tx3 directly to the node, or the device may send transaction Tx3 to the node via an intermediate platform.

In step S603, the node in the blockchain system obtains the respective information of the at least one digital resource leased by User2 from the blockchain system by performing transaction Tx3, where the at least one digital resource includes digital resource Dr1.

It should be noted that, in order to avoid the user from using the virtual article whose return time has elapsed, when obtaining the information of each of the at least one digital resource, for any one of the at least one digital resource, for example, digital resource Dr1, it may be determined whether the return time corresponding to digital resource Dr1 has been reached at present. If it is determined that the return time is not currently reached, information for digital resource Dr1 may be obtained.

In an example, the information of each of the at least one digital resource may include a resource identifier, the target platform may store the resource identifier and metadata of a virtual article corresponding to the digital resource indicated by the resource identifier, and the resource identifier returned to User2 may be used by User2 to obtain the metadata from the target platform. In another example, the information of each of the at least one digital resource may include metadata of the corresponding virtual item.

In step S605, the node in the blockchain system returns the respective information of the at least one digital resource to User 2.

In one embodiment, for any digital resource held by the user, the user may choose to destroy the digital resource when the user no longer needs the digital resource. For example, user1 may choose to destroy digital resource Dr1 when User1 no longer needs digital resource Dr1 it holds. The destruction process of the digital resource Dr1 can be as shown in fig. 7.

Referring to fig. 7, it is a flowchart of a digital resource processing method in a block chain system in the embodiment of the present specification.

As shown in fig. 7, first, at step S701, user1 sends a transaction Tx7 that destroys digital resource Dr1 to a node in the blockchain system, transaction Tx7 invokes the NFT intelligence contract and includes account Ac1 of User1 and resource identification Id1 of digital resource Dr1.

In particular, user1 may send a transaction Tx7 to a node in the blockchain system through the equipment it uses. Wherein the device may send transaction Tx7 directly to the node, or the device may send transaction Tx7 to the node via an intermediate platform.

At step S703, the node in the blockchain system transfers the resource information of the digital resource Dr1 to the zero address in the blockchain system by performing transaction Tx7.

The resource information of the digital resource Dr1 may be stored in the contract state of the NFT smart contract in association with the account Ac1, or may be stored in the state of the account Ac1, and the purpose of destroying the digital resource Dr1 may be achieved by transferring the resource information from the contract state/the state of the account Ac1 to a zero address in the blockchain system.

According to the digital resource processing scheme provided by the embodiment of the specification, the return time is carried in the transaction of renting the NFT resource, and the return event of returning the NFT resource when the return time is reached is created in the process of executing the transaction, so that the block chain node can be triggered to automatically trigger the return of the NFT resource when the lease expires, the security of the virtual article of a user is ensured, the virtual article has liquidity, the permanent loss risk of the virtual article due to the fact that the virtual article is lent to other people can be avoided, and the problem that the virtual article is difficult to recover after being illegally destroyed or transferred can be solved. In addition, the processing mode of the NFT resources can be enriched, the ownership of the NFT resources on the block chain can be determined through the NFT intelligent contract, and the right of the centralized platform for storing, controlling and verifying the NFT resources is taken back, so that the user benefits, the defect that the virtual objects are free of mobility is overcome, and meanwhile, the method has entertainment value. The intelligent contract transaction based on the block chain can ensure that the transaction of the virtual goods is safer and more convenient. Decentralized virtual item management avoids malicious deletion or transfer of virtual items.

Fig. 8 is a schematic structural diagram of a digital resource processing apparatus in a blockchain system according to an embodiment of the present disclosure. The block chain system is stored with first resource information of a first digital resource, the first resource information comprises a first resource identifier, and intelligent contracts used for digital resource processing are deployed, the first digital resource is held by a first user and corresponds to a first virtual article, and the device is applied to nodes in the block chain system.

As shown in fig. 8, the apparatus 800 for processing digital resources in a blockchain system in the embodiment of the present disclosure may include: a receiving unit 801 and a transaction execution unit 802. Wherein the receiving unit 801 is configured to receive a first transaction of a first user renting a first digital resource to a second user, the first transaction invoking the intelligent contract and including a first account of the first user, a second account of the second user, a first resource identifier and a return time; the transaction execution unit 802 is configured to store the first resource information in association with the second account in the blockchain system by executing the first transaction, and create a return event for returning the first digital resource when the return time is reached, so that the second user has a usage right for the first virtual item during rental.

In one embodiment, the apparatus 800 may further include: a generating unit (not shown in the figure) configured to respond to the returning event and generate a second transaction of the second user returning the first digital resource to the first user when the returning time is reached, wherein the second transaction calls the intelligent contract and comprises the first account, the second account and the first resource identifier; a sending unit (not shown) sends the second transaction to the blockchain system.

In one embodiment, the transaction execution unit 802 may be further configured to: by performing the second transaction, removing the stored first resource information associated with the second account in the blockchain system, generating a return record for the second user to return the first digital resource to the first user, and storing the return record in the blockchain system.

In one embodiment, the transaction execution unit 802 may be further configured to: storing first resource information of a first digital resource in association with a second account in a contract state of the smart contract by executing a first transaction; the stored first resource information associated with the second account is removed in the contract state by executing the second transaction.

In one embodiment, the transaction execution unit 802 may be further configured to: writing the first resource information into the state of the second account by executing the first transaction; the first resource information is removed in the state of the second account by performing a second transaction.

In one embodiment, the receiving unit 801 may be further configured to: receiving a third transaction of the second user for acquiring the information of the rented digital resource, wherein the third transaction calls the intelligent contract and comprises a second account; the transaction execution unit 802 may also be configured to: acquiring respective information of at least one digital resource rented by a second user from the blockchain system by executing a third transaction, and returning the acquired information to the second user; wherein the at least one digital resource comprises a first digital resource.

In an embodiment, the information of the at least one digital resource includes a resource identifier, the target platform stores the resource identifier and metadata of a virtual article corresponding to the digital resource indicated by the resource identifier, and the resource identifier returned to the second user is used for the second user to obtain the metadata from the target platform.

In one embodiment, the first resource information further includes metadata of the first virtual article, and the information of each of the at least one digital resource includes metadata of the corresponding virtual article.

In one embodiment, in the process of executing the third transaction, the transaction execution unit 802 may obtain information of the first digital resource from the blockchain system in response to the return time not being currently reached.

In one embodiment, the blockchain system stores resource information of each of a plurality of digital resources held by a first user; and prior to receiving the first transaction, the receiving unit 801 may be further configured to: receiving a fourth transaction of the first user for acquiring the information of the held digital resources, wherein the fourth transaction calls the intelligent contract and comprises a first account; the transaction execution unit 802 may also be configured to: and acquiring information containing the resource identifier of each of the plurality of digital resources from the blockchain system by executing a fourth transaction, and returning the acquired information to the first user. And the first resource identifier in the first transaction is selected by the first user in the acquired information.

In one embodiment, the original owner of the first digital resource is the target organization; and the receiving unit 801 may be further configured to: when the first user obtains the first digital resource from the target mechanism, receiving a fifth transaction of transferring the first digital resource to the first user by the target mechanism, wherein the fifth transaction calls the intelligent contract and comprises a first account, a third account of the target mechanism and a first resource identifier; the transaction execution unit 802 may also be configured to: the first resource information is stored in association with the first account in the blockchain system by performing a fifth transaction.

In one embodiment, the receiving unit 801 may be further configured to: when the first user obtains the ownership of the first virtual article, receiving a sixth transaction for the first user to save the first virtual article, wherein the sixth transaction calls the intelligent contract and comprises a first account and a first resource identifier generated by the first user for a first digital resource corresponding to the first virtual article; wherein the first resource identification is generated based on the first account and at least a portion of the metadata of the first virtual item; the transaction execution unit 802 may also be configured to: by performing a sixth transaction, first resource information for a first digital resource is stored in association with a first account in the blockchain system.

In one embodiment, the sixth transaction and the first resource information further include metadata of the first virtual item.

In one embodiment, the receiving unit 801 may be further configured to: when a first user destroys a first digital resource held by the first user, receiving a seventh transaction of destroying the first digital resource by the first user, wherein the seventh transaction calls the intelligent contract and comprises a first account and a first resource identifier; the transaction execution unit 802 may also be configured to: by performing the seventh transaction, the first resource information is transferred to a zero address in the blockchain system.

In the embodiment of the apparatus corresponding to fig. 8, for further explanation of each unit, reference may be made to the related description in the related method embodiment, and details are not repeated here.

The present specification also provides a computer-readable storage medium, on which a computer program is stored, wherein the computer program, when executed on a computer, causes the computer to perform the method described in any of the method embodiments above.

This specification embodiment also provides a computing device, including a memory and a processor, where the memory stores executable code, and the processor executes the executable code to implement the method described in any of the method embodiments above.

The present specification also provides a computer program, wherein the computer program causes a computer to perform the method described in any of the method embodiments above when the computer program is executed in the computer.

In the 90 s of the 20 th century, improvements in a technology could clearly distinguish between improvements in hardware (e.g., improvements in circuit structures such as diodes, transistors, switches, etc.) and improvements in software (improvements in process flow). However, as technology advances, many of today's process flow improvements have been seen as direct improvements in hardware circuit architecture. Designers almost always obtain the corresponding hardware circuit structure by programming an improved method flow into the hardware circuit. Thus, it cannot be said that an improvement in the process flow cannot be realized by hardware physical modules. For example, a Programmable Logic Device (PLD), such as a Field Programmable Gate Array (FPGA), is an integrated circuit whose Logic functions are determined by programming the Device by a user. A digital system is "integrated" on a PLD by the designer's own programming without requiring the chip manufacturer to design and fabricate application-specific integrated circuit chips. Furthermore, nowadays, instead of manually manufacturing an Integrated Circuit chip, such Programming is often implemented by "logic compiler" software, which is similar to a software compiler used in program development and writing, but the original code before compiling is also written by a specific Programming Language, which is called Hardware Description Language (HDL), and HDL is not only one but many, such as ABEL (Advanced Boolean Expression Language), AHDL (alternate Hardware Description Language), traffic, CUPL (core universal Programming Language), HDCal, jhddl (Java Hardware Description Language), lava, lola, HDL, PALASM, rhyd (Hardware Description Language), and vhigh-Language (Hardware Description Language), which is currently used in most popular applications. It will also be apparent to those skilled in the art that hardware circuitry that implements the logical method flows can be readily obtained by merely slightly programming the method flows into an integrated circuit using the hardware description languages described above.

The controller may be implemented in any suitable manner, for example, the controller may take the form of, for example, a microprocessor or processor and a computer-readable medium storing computer-readable program code (e.g., software or firmware) executable by the (micro) processor, logic gates, switches, an Application Specific Integrated Circuit (ASIC), a programmable logic controller, and an embedded microcontroller, examples of which include, but are not limited to, the following microcontrollers: ARC 625D, atmel AT91SAM, microchip PIC18F26K20, and Silicone Labs C8051F320, the memory controller may also be implemented as part of the control logic for the memory. Those skilled in the art will also appreciate that, in addition to implementing the controller in purely computer readable program code means, the same functionality can be implemented by logically programming method steps such that the controller is in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Such a controller may thus be regarded as a hardware component and the means for performing the various functions included therein may also be regarded as structures within the hardware component. Or even means for performing the functions may be regarded as being both a software module for performing the method and a structure within a hardware component.

The systems, devices, modules or units illustrated in the above embodiments may be implemented by a computer chip or an entity, or by a product with certain functions. One typical implementation device is a server system. Of course, this application does not exclude that with future developments in computer technology, the computer implementing the functionality of the above described embodiments may be, for example, a personal computer, a laptop computer, a vehicle-mounted human-computer interaction device, a cellular phone, a camera phone, a smart phone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device or a combination of any of these devices.

Although one or more embodiments of the present description provide method operational steps as described in the embodiments or flowcharts, more or fewer operational steps may be included based on conventional or non-inventive approaches. The order of steps recited in the embodiments is merely one manner of performing the steps in a multitude of orders and does not represent the only order of execution. When an actual apparatus or end product executes, it may execute sequentially or in parallel (e.g., parallel processors or multi-threaded environments, or even distributed data processing environments) according to the method shown in the embodiment or the figures. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the presence of additional identical or equivalent elements in a process, method, article, or apparatus that comprises the recited elements is not excluded. For example, if the terms first, second, etc. are used to denote names, they do not denote any particular order.

For convenience of description, the above devices are described as being divided into various modules by functions, and are described separately. Of course, when implementing one or more of the present description, the functions of each module may be implemented in one or more software and/or hardware, or a module implementing the same function may be implemented by a combination of multiple sub-modules or sub-units, etc. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one type of logical functional division, and other divisions may be realized in practice, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may 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 and/or block diagram block or blocks.

These computer program instructions may also 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 and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include forms of volatile memory in a computer readable medium, random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.

Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape disk storage, graphene storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.

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

One or more embodiments of the specification may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. One or more embodiments of the specification may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment. In the description of the specification, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the specification. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

The above description is merely exemplary of one or more embodiments of the present disclosure and is not intended to limit the scope of one or more embodiments of the present disclosure. Various modifications and alterations to one or more embodiments described herein will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present specification should be included in the scope of the claims.

Claims (17)

1. A method of digital resource processing in a blockchain system having first resource information for a first digital resource stored therein and deployed with an intelligent contract for digital resource processing, the first digital resource being held by a first user and corresponding to a first virtual item, the first resource information including a first resource identification, the method applied to a node in the blockchain system, comprising:

receiving a first transaction of the first user renting the first digital resource to a second user, the first transaction invoking the smart contract and comprising a first account of the first user, a second account of the second user, the first resource identification, and a return time;

storing the first resource information in the blockchain system in association with the second account by executing the first transaction, and creating a return event for returning the first digital resource upon reaching the return time such that the second user has usage rights for the first virtual item during rental.

2. The method of claim 1, further comprising:

in response to the return event, generating a second transaction for the second user to return the first digital resource to the first user upon reaching the return time, the second transaction invoking the smart contract and including the first account, the second account, and the first resource identification;

sending the second transaction to the blockchain system.

3. The method of claim 2, further comprising:

removing the stored first resource information associated with the second account in the blockchain system by performing the second transaction, generating a return record of the second user returning the first digital resource to the first user, and storing the return record in the blockchain system.

4. The method of claim 3, wherein the storing the first resource information in association with the second account in the blockchain system comprises:

storing first resource information of the first digital resource in association with the second account in a contract state of the smart contract;

the removing the stored first resource information associated with the second account in the blockchain system comprises:

removing the stored first resource information associated with the second account in the contracted state.

5. The method of claim 3, wherein the storing the first resource information in association with the second account in the blockchain system comprises:

writing the first resource information into the state of the second account;

the removing the stored first resource information associated with the second account in the blockchain system comprises:

removing the first resource information in the status of the second account.

6. The method of claim 1, wherein after storing the first resource information in association with the second account, further comprising:

receiving a third transaction of the second user for obtaining information of the rented digital resource, the third transaction invoking the smart contract and including the second account;

acquiring respective information of at least one digital resource rented by the second user from the blockchain system by executing the third transaction, and returning the acquired information to the second user; wherein the at least one digital resource comprises the first digital resource.

7. The method according to claim 6, wherein the information of each of the at least one digital resource includes a resource identifier, metadata of the virtual item corresponding to the digital resource indicated by the resource identifier and the resource identifier is stored in the target platform, and the resource identifier returned to the second user is used for the second user to obtain the metadata from the target platform.

8. The method of claim 6, wherein the first resource information further comprises metadata of the first virtual item, and the information of each of the at least one digital resource comprises metadata of the corresponding virtual item.

9. The method of claim 6, wherein the obtaining information about each of the at least one digital resource rented by the second user from the blockchain system comprises:

and acquiring information of the first digital resource from the blockchain system in response to the return time not being reached currently.

10. The method of claim 1, wherein the blockchain system has stored therein resource information for each of a number of digital resources held by the first user; and

prior to receiving a first transaction in which the first user rents the first digital resource to a second user, further comprising:

receiving a fourth transaction in which the first user obtains information of a held digital resource, the fourth transaction invoking the smart contract and including the first account;

acquiring information containing resource identifiers of the digital resources from the blockchain system by executing the fourth transaction, and returning the acquired information to the first user;

the first resource identifier in the first transaction is selected by the first user from the acquired information.

11. The method of claim 1, wherein the original holder of the first digital asset is a target institution; and

the method further comprises the following steps:

when the first user obtains the first digital resource from the target institution, receiving a fifth transaction of the target institution transferring the first digital resource to the first user, the fifth transaction invoking the smart contract and comprising the first account, a third account of the target institution and the first resource identification;

storing the first resource information in association with the first account in the blockchain system by executing the fifth transaction.

12. The method of claim 1, further comprising:

when the first user obtains ownership of the first virtual item, receiving a sixth transaction for credentialing the first virtual item by the first user, the sixth transaction invoking the smart contract and comprising the first account and a first resource identification generated by the first user for a first digital resource corresponding to the first virtual item; wherein the first resource identification is generated based on at least a portion of metadata of the first account and the first virtual item;

storing, in the blockchain system, first resource information for the first digital resource in association with the first account by performing the sixth transaction.

13. The method of claim 12, wherein the sixth transaction and the first resource information further comprise metadata of the first virtual item.

14. The method of claim 1, further comprising:

receiving a seventh transaction in which the first user destroys the first digital resource when the first user destroys the first digital resource in his possession, the seventh transaction invoking the smart contract and including the first account and the first resource identification;

transferring the first resource information to a zero address in the blockchain system by performing the seventh transaction.

15. A digital resource processing apparatus in a blockchain system having first resource information of a first digital resource stored therein and deployed with an intelligent contract for digital resource processing, the first digital resource being held by a first user and corresponding to a first virtual item, the first resource information including a first resource identification, the apparatus being applied to a node in the blockchain system, comprising:

a receiving unit configured to receive a first transaction of the first digital resource rented by the first user to a second user, the first transaction invoking the smart contract and including a first account of the first user, a second account of the second user, the first resource identification, and a return time;

a transaction execution unit configured to store the first resource information in association with the second account in the blockchain system by executing the first transaction, and create a return event for returning the first digital resource when the return time is reached, so that the second user has a usage right for the first virtual item during rental.

16. A computer-readable storage medium, on which a computer program is stored which, when executed in a computer, causes the computer to carry out the method of any one of claims 1-14.

17. A computing device comprising a memory having executable code stored therein and a processor that, when executing the executable code, implements the method of any of claims 1-14.

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