CN111383119A

CN111383119A - Asset management method and device based on block chain and electronic equipment

Info

Publication number: CN111383119A
Application number: CN202010479990.7A
Authority: CN
Inventors: 周徽; 陆旭明; 陈锐发
Original assignee: Alipay Hangzhou Information Technology Co Ltd
Current assignee: Alipay Hangzhou Information Technology Co Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2020-07-07

Abstract

This specification proposes an asset management method, device and electronic device based on a block chain, including: receiving basic asset subscription transaction sent by a client; sending the basic asset subscription transaction to other node equipment in a securitized asset distribution chain, and performing consensus processing on the basic asset subscription transaction; after the basic asset subscription transaction consensus passes, executing an intelligent contract called by the basic asset subscription transaction stored in an account book of a securitized asset distribution chain, sending transfer information to node equipment of a basic asset management chain through a cross-link relay, executing the intelligent contract called by the asset screening transaction stored in the basic asset management chain when the node equipment of the basic asset management chain receives the asset screening transaction containing the transfer information, and screening out the basic asset matched with the transfer information from the basic assets stored in the basic asset management chain; and creating a basic asset pool based on the screened basic assets returned by the node equipment of the asset management chain.

Description

Asset management method and device based on block chain and electronic equipment

Technical Field

One or more embodiments of the present disclosure relate to the field of blockchain technologies, and in particular, to a method and an apparatus for asset management based on blockchain, and an electronic device.

Background

The block chain technology, also called distributed ledger technology, is an emerging technology in which several computing devices participate in "accounting" together, and a complete distributed database is maintained together. The blockchain technology has been widely used in many fields due to its characteristics of decentralization, transparency, participation of each computing device in database records, and rapid data synchronization between computing devices.

Disclosure of Invention

According to a first aspect of the present description, a method of asset management based on a blockchain is proposed, the blockchain comprising a securitized asset distribution chain and a basic asset management chain; the basic asset management chain stores basic assets issued by a client; the method is applied to a node device on a securitized asset distribution chain, and comprises the following steps:

receiving basic asset subscription transaction sent by a client; the basic asset subscription transaction is sent when the client monitors the transfer information of an asset management party to an original right beneficiary of the basic asset, wherein the transfer information is stored in an account book of the securitized asset distribution chain;

sending the basic asset subscription transaction to other node equipment in the securitized asset distribution chain, and performing consensus processing on the basic asset subscription transaction;

executing a contract code of an intelligent contract called by the basic asset subscription transaction stored in an account book of the securitized asset distribution chain after the basic asset subscription transaction consensus passes, sending the transfer information to a node device of the basic asset management chain through a cross-link relay, executing the contract code of the intelligent contract called by the asset screening transaction stored on the basic asset management chain when the node device of the basic asset management chain receives the asset screening transaction containing the transfer information, and screening out basic assets matched with the transfer information from the basic assets stored on the basic asset management chain;

receiving screened basic assets returned by the node equipment of the basic asset management chain, and establishing a basic asset pool based on the screened basic assets; wherein the base pool of assets is for issuing securitized assets as value supports.

Optionally, after the basic asset pool is created, a contract code in an intelligent contract called for a basic asset subscription transaction is further executed, an authorization determination process is initiated for the basic assets in the basic asset pool, and after the asset management party determines the authorization of the basic assets in the basic asset pool, an original authorization beneficiary corresponding to the authorized basic assets is updated to the asset management party.

Optionally, after the base asset in the base asset pool is authenticated, further executing a contract code in an intelligent contract called for a base asset underwriting transaction, and determining whether a rating report for the base asset in the base asset pool is stored on the blockchain;

if so, packaging the basic asset pool, and issuing the packaged basic asset pool to the block chain for evidence storage.

Optionally, the securitized assets are bonds or funds; the underlying assets are underlying debt assets.

According to a second aspect of the present specification, there is provided a blockchain-based asset management method, the blockchain comprising a securitized asset distribution chain and a base asset management chain; the basic asset management chain stores basic assets issued by a client; the method is applied to node equipment on an underlying asset management chain, and comprises the following steps:

receiving an asset screening transaction; the asset screening transaction comprises transfer information transferred by an original equity owner of the base asset from an asset management party;

sending the asset screening transaction to other node equipment in the basic asset management chain, and performing consensus processing on the asset screening transaction;

executing contract codes of intelligent contracts called by the asset screening transaction stored in an account book of the basic asset management chain after the asset screening transaction consensus passes, screening out basic assets matched with the transfer information from the basic assets stored in the basic asset management chain, and sending the screened out basic assets to node equipment of the securitized asset issuing chain through cross-chain relay so as to create a basic asset pool by the node equipment of the securitized asset issuing chain based on the screened out basic assets; wherein the base pool of assets is for issuing securitized assets as value supports.

Optionally, the screening out the basic assets matched with the transfer information includes:

and screening out the basic assets with the asset value matched with the value of the transfer amount from the basic assets stored in the basic asset management chain.

Optionally, after screening out the basic assets matched with the transfer information, setting the state of the screened out basic assets to be a frozen state.

According to a third aspect of the present specification, there is provided a blockchain-based asset management apparatus, the blockchain comprising a securitized asset distribution chain and a base asset management chain; the basic asset management chain stores basic assets issued by a client; the device is applied to node equipment on a securitized asset distribution chain, and comprises:

the receiving module is used for receiving the basic asset subscription transaction sent by the client; the basic asset subscription transaction is sent when the client monitors the transfer information of an asset management party to an original right beneficiary of the basic asset, wherein the transfer information is stored in an account book of the securitized asset distribution chain;

the consensus module is used for sending the basic asset subscription transaction to other node equipment in the securitized asset distribution chain and carrying out consensus processing on the basic asset subscription transaction;

the execution module executes contract codes of intelligent contracts called by the basic asset subscription transactions stored in the ledger of the securitized asset issuing chain after the basic asset subscription transactions are identified, sends the transfer information to the node equipment of the basic asset management chain through a cross-link relay, executes the contract codes of the intelligent contracts called by the asset screening transactions stored in the basic asset management chain when the node equipment of the basic asset management chain receives the asset screening transactions containing the transfer information, and screens out the basic assets matched with the transfer information from the basic assets stored in the basic asset management chain;

the creating module is used for receiving the screened basic assets returned by the node equipment of the basic asset management chain and creating a basic asset pool based on the screened basic assets; wherein the base pool of assets is for issuing securitized assets as value supports.

Optionally, the right determining module further executes contract codes in an intelligent contract called by a basic asset underwriting transaction after the basic asset pool is created, initiates right determining processing for the basic assets in the basic asset pool, and updates an original right beneficiary corresponding to the righted basic assets to the asset management party after the asset management party determines the right of the basic assets in the basic asset pool.

Optionally, the encapsulation module further executes a contract code in an intelligent contract called for a basic asset underwriting transaction after the basic asset in the basic asset pool is authenticated, and determines whether a rating report for the basic asset in the basic asset pool is stored on the block chain;

According to a fourth aspect of the present specification, there is provided a blockchain-based asset management apparatus, the blockchain comprising a securitized asset distribution chain and a base asset management chain; the basic asset management chain stores basic assets issued by a client; the device is applied to node equipment on a basic asset management chain, and comprises:

a receiving module that receives asset screening transactions; the asset screening transaction comprises transfer information transferred by an original equity owner of the base asset from an asset management party;

the consensus module is used for sending the asset screening transaction to other node equipment in the basic asset management chain and carrying out consensus processing on the asset screening transaction;

the screening module is used for executing contract codes of intelligent contracts called by the asset screening transaction stored in an account book of the basic asset management chain after the asset screening transaction consensus passes, screening out basic assets matched with the transfer information from the basic assets stored in the basic asset management chain, sending the screened basic assets to node equipment of the securitized asset issuing chain through cross-chain relay, and creating a basic asset pool by the node equipment of the securitized asset issuing chain based on the screened basic assets; wherein the base pool of assets is for issuing securitized assets as value supports.

Optionally, the transfer information includes: transferring the amount of money;

and the screening module screens out the basic assets with the asset value matched with the value of the transfer amount from the basic assets stored in the basic asset management chain.

Optionally, the freezing module is configured to set the state of the screened basic assets to a frozen state after screening the basic assets matched with the transfer information.

According to a fifth aspect of the present specification, there is provided an electronic apparatus comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor implements the method of the first aspect by executing the executable instructions.

According to a sixth aspect of the present description, there is provided a computer readable storage medium having stored thereon computer instructions which, when executed by a processor, carry out the steps of the method of the first aspect.

According to a seventh aspect of the present specification, there is provided an electronic apparatus comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor implements the method of the second aspect by executing the executable instructions.

According to an eighth aspect of the present specification, there is provided a computer readable storage medium having stored thereon computer instructions which, when executed by a processor, carry out the steps of the method of the second aspect.

As can be seen from the above description, by storing the basic assets of the original rights beneficiary of the basic assets on the basic asset management chain and deploying the intelligent contracts for creating the basic asset pool on the blockchain, the node devices of the securitized distribution chain automatically realize the process of creating the basic asset pool by acquiring the basic assets from the basic asset management chain when receiving the basic asset subscription transaction.

Drawings

FIG. 1 is a schematic diagram of a process for creating an intelligent contract, as shown in an exemplary embodiment of the present description;

FIG. 2 is a schematic diagram of a call to an intelligent contract, shown in an exemplary embodiment of the present description;

FIG. 3 is a schematic diagram illustrating the creation of an intelligent contract and invocation of an intelligent contract in accordance with an exemplary embodiment of the present specification;

FIG. 4 is a schematic diagram of a blockchain-based asset management system shown in an exemplary embodiment of the present description;

FIG. 5 is a flow chart of a blockchain-based asset management method shown in an exemplary embodiment of the present description;

FIG. 6 is a flow chart of a blockchain-based asset management method shown in an exemplary embodiment of the present description;

FIG. 7 is a hardware block diagram of an electronic device shown in an exemplary embodiment of the present description;

FIG. 8 is a block diagram of a blockchain-based asset management device that is illustrated in an exemplary embodiment of the present description;

fig. 9 is a block diagram of another blockchain-based asset management device shown in an exemplary embodiment of the present specification.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with one or more embodiments of the present specification. Rather, they are merely examples of apparatus and methods consistent with certain aspects of one or more embodiments of the specification, as detailed in the claims which follow.

It should be noted that: in other embodiments, the steps of the corresponding methods are not necessarily performed in the order shown and described herein. In some other embodiments, the method may include more or fewer steps than those described herein. Moreover, a single step described in this specification may be broken down into multiple steps for description in other embodiments; multiple steps described in this specification may be combined into a single step in other embodiments.

Blockchains are generally divided into three types: public chain (Public Blockchain), private chain (PrivateBlockchain) and alliance chain (Consortium Blockchain). Furthermore, there may be a combination of the above types, such as private chain + federation chain, federation chain + public chain, and so on.

Among them, the most decentralized is the public chain. The public chain is represented by bitcoin and ether house, and participants (also called nodes in the block chain) joining the public chain can read data records on the chain, participate in transactions, compete for accounting rights of new blocks, and the like. Moreover, each node can freely join or leave the network and perform related operations.

Private chains are the opposite, with the network's write rights controlled by an organization or organization and the data read rights specified by the organization. Briefly, a private chain may be a weakly centralized system with strict restrictions on nodes and a small number of nodes. This type of blockchain is more suitable for use within a particular establishment.

A federation chain is a block chain between a public chain and a private chain, and "partial decentralization" can be achieved. Each node in a federation chain typically has a physical organization or organization corresponding to it; the nodes are authorized to join the network and form a benefit-related alliance, and block chain operation is maintained together.

Based on the basic characteristics of a blockchain, a blockchain is usually composed of several blocks. The time stamps corresponding to the creation time of the block are recorded in the blocks respectively, and all the blocks form a time-ordered data chain according to the time stamps recorded in the blocks strictly.

The real data generated by the physical world can be constructed into a standard transaction (transaction) format supported by a block chain, then is issued to the block chain, the node equipment in the block chain performs consensus processing on the received transaction, and after the consensus is achieved, the node equipment serving as an accounting node in the block chain packs the transaction into a block and performs persistent evidence storage in the block chain.

The consensus algorithm supported in the blockchain may include:

the first kind of consensus algorithm, namely the consensus algorithm that the node device needs to contend for the accounting right of each round of accounting period; consensus algorithms such as Proof of Work (POW), Proof of equity (POS), Proof of commission rights (DPOS), etc.;

the second kind of consensus algorithm, namely the consensus algorithm which elects accounting nodes in advance for each accounting period (without competing for accounting right); for example, a consensus algorithm such as a Practical Byzantine Fault Tolerance (PBFT) is used.

In a blockchain network employing a first type of consensus algorithm, node devices competing for billing rights can execute a transaction upon receipt. One of the node devices competing for the accounting right may win in the process of competing for the accounting right in the current round, and become an accounting node. The accounting node may package the received transaction with other transactions to generate a latest block and send the generated latest block or a block header of the latest block to other node devices for consensus.

In the block chain network adopting the second type of consensus algorithm, the node equipment with the accounting right is agreed before accounting in the current round. Thus, the node device, after receiving the transaction, may send the transaction to the accounting node if it is not the accounting node of its own round. For the accounting node of the current round, the transaction may be performed during or before packaging the transaction with other transactions to generate the latest block. After generating the latest block, the accounting node may send the latest block or a block header of the latest block to other node devices for consensus.

As described above, regardless of which consensus algorithm is used by the blockchain, the accounting node of the current round may pack the received transaction to generate the latest block, and send the generated latest block or the block header of the latest block to other node devices for consensus verification. If no problem is verified after other node equipment receives the latest block or the block header of the latest block, the latest block can be added to the tail of the original block chain, so that the accounting process of the block chain is completed. The transaction contained in the block may also be performed by other nodes in verifying the new block or block header sent by the accounting node.

In practical applications, whether public, private, or alliance, it is possible to provide the functionality of a smart contract (Smartcontract). An intelligent contract on a blockchain is a contract on a blockchain that can be executed triggered by a transaction. An intelligent contract may be defined in the form of code.

Taking an Etherhouse as an example, a user is supported to create and call some complex logic in the Etherhouse network. The ethernet workshop is used as a programmable block chain, and the core of the ethernet workshop is an ethernet workshop virtual machine (EVM), and each ethernet workshop node can run the EVM. The EVM is a well-behaved virtual machine through which various complex logic can be implemented. The user issuing and invoking smart contracts in the etherhouse is running on the EVM. In fact, the EVM directly runs virtual machine code (virtual machine bytecode, hereinafter referred to as "bytecode"), so the intelligent contract deployed on the blockchain may be bytecode.

After Bob sends a Transaction (Transaction) containing information to create a smart contract to the ethernet network, each node can execute the Transaction in the EVM, as shown in fig. 1. In fig. 1, the From field of the transaction is used To record the address of the account initiating the creation of the intelligent contract, the contract code stored in the field value of the Data field of the transaction may be bytecode, and the field value of the To field of the transaction is a null account. After the nodes reach the agreement through the consensus mechanism, the intelligent contract is successfully created, and the follow-up user can call the intelligent contract.

After the intelligent contract is established, a contract account corresponding to the intelligent contract appears on the block chain, and the block chain has a specific address; for example, "0 x68e12cf284 …" in each node in fig. 1 represents the address of the contract account created; the contract Code (Code) and account store (Storage) will be maintained in the account store for that contract account. The behavior of the intelligent contract is controlled by the contract code, while the account storage of the intelligent contract preserves the state of the contract. In other words, the intelligent contract causes a virtual account to be generated on the blockchain that contains the contract code and account storage.

As mentioned above, the Data field containing the transaction that created the intelligent contract may hold the byte code of the intelligent contract. A bytecode consists of a series of bytes, each of which can identify an operation. Based on the multiple considerations of development efficiency, readability and the like, a developer can select a high-level language to write intelligent contract codes instead of directly writing byte codes. For example, the high-level language may employ a language such as Solidity, Serpent, LLL, and the like. For intelligent contract code written in a high-level language, the intelligent contract code can be compiled by a compiler to generate byte codes which can be deployed on a blockchain.

Taking the Solidity language as an example, the contract code written by it is very similar to a Class (Class) in the object-oriented programming language, and various members including state variables, functions, function modifiers, events, etc. can be declared in one contract. A state variable is a value permanently stored in an account Storage (Storage) field of an intelligent contract to save the state of the contract.

As shown in FIG. 2, still taking the Etherhouse as an example, after Bob sends a transaction containing the information of the calling intelligent contract to the Etherhouse network, each node can execute the transaction in the EVM. In fig. 2, the From field of the transaction is used To record the address of the account initiating the intelligent contract invocation, the To field is used To record the address of the intelligent contract invocation, and the Data field of the transaction is used To record the method and parameters of the intelligent contract invocation. After invoking the smart contract, the account status of the contract account may change. Subsequently, a platform may view the account status of the contract account through the accessed block link point (e.g., node 1 in fig. 2).

The intelligent contract can be independently executed at each node in the blockchain network in a specified mode, and all execution records and data are stored on the blockchain, so that after the transaction is executed, transaction certificates which cannot be tampered and lost are stored on the blockchain.

A schematic diagram of creating an intelligent contract and invoking the intelligent contract is shown in fig. 3. An intelligent contract is created in an Ethernet workshop and needs to be subjected to the processes of compiling the intelligent contract, changing the intelligent contract into byte codes, deploying the intelligent contract to a block chain and the like. The intelligent contract is called in the Ethernet workshop, a transaction pointing to the intelligent contract address is initiated, the EVM of each node can respectively execute the transaction, and the intelligent contract code is distributed and operated in the virtual machine of each node in the Ethernet workshop network.

In the field of blockchain, an important concept is Account (Account); taking an ether house as an example, the ether house generally divides an account into an external account and a contract account; the external account is an account directly controlled by the user and is also called as a user account; and the contract account is created by the user through an external account, the account containing the contract code (i.e. the smart contract). Of course, for some blockchain items derived from the ethernet-based architecture (such as ant blockchains), the account types supported by the blockchain may be further expanded, and are not particularly limited in this specification.

For accounts in a blockchain, the account status of the account is usually maintained through a structure. When a transaction in a block is executed, the status of the account associated with the transaction in the block chain is also typically changed.

Taking etherhouses as an example, the structure of an account usually includes fields such as Balance, Nonce, Code and Storage. Wherein:

a Balance field for maintaining the current account Balance of the account;

a Nonce field for maintaining a number of transactions for the account; the counter is used for guaranteeing that each transaction can be processed only once, and replay attack is effectively avoided;

a Code field for maintaining a contract Code for the account; in practical applications, only the hash value of the contract Code is typically maintained in the Code field; thus, the Code field is also commonly referred to as the Codhash field.

A Storage field for maintaining the Storage contents of the account (default field value is null); for a contract account, a separate storage space is usually allocated to store the storage content of the contract account; this separate storage space is often referred to as the account storage of the contract account. The storage content of the contract account is usually constructed into a data structure of an MPT (MerklePatricia trie) tree and stored in the independent storage space; in which, the Storage content based on the contract account is constructed into an MPT tree, which is also commonly referred to as a Storage tree. Whereas the Storage field typically maintains only the root node of the Storage tree; thus, the Storage field is also commonly referred to as the Storage root field.

Wherein, for the external account, the field values of the Code field and the Storage field shown above are both null values.

Conventional blockchain projects, represented by etherhouses, typically support conversion of real-world currency into virtual tokens that can be circulated through the chain in order to effect a "value transfer" over the blockchain.

In the blockchain field, for some blockchain items derived from the ethernet-based architecture (such as ant blockchains), the function of converting real-world currency into virtual tokens that can circulate on the chains is generally no longer supported; instead, in these blockchain projects, some non-monetary attributes of the physical assets in the real world may be converted into virtual assets that can be circulated over the blockchain.

It should be noted that converting an entity asset having a non-monetary attribute in the real world into a virtual asset on a blockchain generally refers to a process of "anchoring" the entity asset and a virtual asset on the blockchain to serve as a value support for the virtual assets, and further generating a virtual asset on the blockchain which is matched with the value of the entity asset and can be circulated between blockchain accounts on the blockchain.

In the implementation process, the account types supported by the blockchain can be expanded, and an asset account (also called an asset object) is expanded on the basis of the account types supported by the blockchain; for example, an asset account can be expanded on the basis of an external account and a contract account supported by an Ethernet; the expanded asset account is a virtual asset which can support the real-world non-monetary property of the physical asset as value and can be circulated between the blockchain accounts.

For users accessing such a blockchain, in addition to completing the creation of user accounts and intelligent contracts on the blockchain, a virtual asset matched with the entity asset value of non-monetary attributes of the real world is created on the blockchain, and circulation is performed on the blockchain;

for example, a user may convert physical assets of non-monetary attributes, such as real estate, stocks, loan contracts, notes, accounts receivable, etc., held to value-matched virtual assets for circulation over a blockchain.

The above asset account may be maintained by a structure, specifically, the account status of the account may be maintained by a structure. The content of the structure of the asset account may be the same as that of the ether house, and may be designed based on actual requirements;

in one implementation, for example, the content of the structure body of the asset account is the same as that of an ethernet bay, the structure body of the asset account may also include the fields of Balance, Nonce, Code, and Storage described above.

It should be noted that, in an ethernet, the Balance field is usually used to maintain the current account Balance of the account; for the block chain project derived based on the ethernet framework, since it may not support the conversion of real-world currency into virtual tokens that can be circulated on the chain, in such block chains, the meaning of the Balance field may be extended, and the Balance of the account is no longer represented, but is used to maintain the address information of the asset account corresponding to the "virtual asset" held by the account. In practical application, address information of asset accounts corresponding to multiple virtual assets can be maintained in the Balance field.

In this case, the external account, the contract account, and the asset account shown above can hold the virtual asset by adding address information of the asset account corresponding to the "virtual asset" that needs to be held in the Balance field. That is, in addition to the external account and the contract account, the asset account itself may hold the virtual asset.

For an asset account, Nonce, the field value of the Code field may or may not be null; and the field value of the Storage field may no longer be a null value; the Storage field may be used to maintain the asset status of the "virtual asset" corresponding to the asset account. The specific manner of maintaining the asset state of the "virtual asset" corresponding to the asset account in the Storage field can be flexibly designed based on requirements, and is not described in detail.

In the blockchain project derived based on the framework of the EtherFang, a user can create a virtual asset on the blockchain that matches the value of the real-world non-monetary attribute physical asset by the implementation shown below:

in one implementation, the transaction types supported by the blockchain may be extended to extend a transaction for creating virtual assets; for example, the types of transactions supported by the etherhouse typically include normal transfer transactions, transactions to create smart contracts, and transactions to invoke smart contracts, and a transaction to create virtual assets may be expanded based on the above three types of transactions.

In this case, a user may create a virtual asset for the user by the platform issuing a transaction into the blockchain network for creating the virtual asset, which transaction is performed in the local EVM by a node device in the blockchain. When the node devices reach the agreement through the consensus mechanism, the virtual asset is successfully created, and an asset account corresponding to the virtual asset appears on the blockchain and has a specific address.

In another implementation, intelligent contracts for creating virtual assets may also be deployed on blockchains; the process of deploying the intelligent contract for creating the virtual asset is not described in detail.

In this case, the user may create a virtual asset for the user by the platform issuing a transaction into the blockchain network for invoking the intelligent contract, executing the transaction in the local EVM by the node device in the blockchain, and running contract code associated with the intelligent contract in the EVM. When the node devices reach the agreement through the consensus mechanism, the virtual asset is successfully created, and an asset account corresponding to the virtual asset appears on the blockchain and has a specific address.

Of course, for some blockchain items derived based on the ethernet framework, if the blockchain items also support the function of converting real-world currency into virtual tokens that can circulate on the chain, some non-currency property entity assets in the real world can still be converted into a form of virtual tokens that can circulate on the blockchain, and the virtual tokens circulate on the blockchain, which is not described in detail in this specification.

In addition, in a cross-chain scenario, multiple blockchains may implement cross-chain docking through cross-chain relays.

The cross-link relay can be respectively connected with the block chains through the bridging interfaces, and the cross-link data synchronization among the block chains is completed based on the realized data carrying logic.

The chain-crossing technology used for realizing the chain-crossing relay is not particularly limited in this specification; for example, in practical applications, a plurality of block chains can be connected by a chain-crossing mechanism such as side chain technology, notary technology, and the like.

After a plurality of block chains are connected in a butt joint mode through cross-chain relays, data on other block chains can be read and authenticated between the block chains, and intelligent contracts deployed on other block chains can be called through the cross-chain relays.

With the continuous enrichment of service scenes of the blockchain, more and more blockchain projects begin to introduce some service scenes unrelated to value transfer besides the services related to value transfer, such as transfer and the like; for example, a blockchain interfaces with an asset management platform, financial institution, etc., completing a business scenario such as asset securitization on the blockchain.

The Asset securitization refers to a process of using cash flow generated in the future of a basic Asset as a value support, carrying out credit enhancement through structured design, and issuing Asset-backed Securities (ABS) on the basis. It is a financing form that issues tradeable securities in favor of a particular portfolio of assets or a particular cash flow.

The process of securitization of assets typically involves participation by multiple parties, which may include: original equity beneficiaries of underlying assets, asset management parties, and securitized asset investors.

The basic flow of asset securitization includes: the original stakeholders of the underlying assets sell the underlying assets to the asset manager, or the asset manager may actively purchase the securitized underlying assets. Then, the asset management party collects the purchased basic assets into a basic asset pool, then uses the cash flow generated by the basic asset pool as a value to support the issuing of securities on the financial market for financing, and finally uses the cash flow generated by the basic asset pool to settle the issued securities.

Specifically, the asset manager may aggregate the purchased base assets into a base asset pool and then securitize the assets with the base asset pool as a value support.

A securitized asset investor may purchase a securitized asset issued by an asset manager from the asset manager. In one aspect, a securitization manager may make a second investment with funds paid by the investor to obtain a corresponding cash flow, which may be considered a cash flow generated by the underlying asset pool.

On the other hand, the securitization manager can pay a certain amount of funds from the cash flow to the securitized asset investor as the profit obtained by the securitized asset investor to purchase the securitized asset by using the cash flow to perform the settlement processing.

For example, assuming that the amount of money paid by the securitized investor for purchasing the securitized asset issued by the securitized manager is 10000 yuan, and the rate agreed by the securitized manager and the securitized asset investor for the securitized asset is 3.65% (annual rate of return), the securitized manager can pay 1 yuan per day to the investor as the return obtained by the investor for purchasing the securitized asset.

The asset manager may be SPV (Special Purpose organization). The asset manager is here illustrated by way of example and not specifically limited.

The underlying assets may be underlying debt assets such as accounts receivable and the like.

The securitized assets may refer to securities that are supported by a base asset in a base asset pool as a value, for example, the securitized assets may be bonds, funds, and the like, and the securitized assets are only exemplified and not particularly limited herein.

Based on this, this specification proposes a block chain-based asset management method. In this specification, a blockchain includes a base asset management chain and a securitized asset distribution chain. The basic asset management chain stores basic assets issued by original rights beneficiaries of the basic assets.

After receiving the basic asset subscription transaction sent by the client, the securitized asset distribution chain can execute a contract code of an intelligent contract which is deployed on the securitized asset distribution chain and called by the asset subscription transaction, and basic assets screened out by node equipment of the basic asset management chain are obtained from the basic asset management chain through cross-chain relay to create a basic asset pool.

On the other hand, after the basic assets are screened out, the node equipment for basic asset management can freeze the basic assets, and the basic assets are prevented from being issued in a second securitization mode.

In a third aspect, after creating the base asset pool, the securitized asset distribution chain may execute contract code in the intelligent contract, initiate a process of determining rights to the base assets in the base asset pool, and update the rights holders corresponding to the rights-determined base assets as the asset manager after the asset manager determines rights to the base assets in the base asset pool.

In the above technical solution, by storing the basic assets of the original rights beneficiary of the basic assets in the basic asset management chain and deploying the intelligent contract for creating the basic asset pool in the blockchain, the node device of the securitization distribution chain automatically realizes the process of acquiring the basic assets from the basic asset management chain and creating the basic asset pool when receiving the basic asset subscription transaction.

Referring to fig. 4, fig. 4 is a schematic diagram of a blockchain-based asset management system according to an exemplary embodiment of the present disclosure.

The asset management system based on the block chain comprises: the system comprises a securitized asset issuing chain, a basic asset management chain, a client corresponding to an asset management party, a client corresponding to a basic asset original right beneficiary, a bank platform and the like.

Of course, in practical applications, other devices may be included, and the devices included in the asset management system based on the blockchain are only exemplarily illustrated and not specifically limited.

1. Basic asset management chain

The base asset management chain may store base assets of original rights beneficiaries.

When the method is implemented, the original equitable persons of the basic assets can publish the basic assets to the basic asset management chain through the corresponding clients.

In addition, intelligent contracts for basic asset screening are deployed on the basic asset management chain.

When the method is implemented, the asset management party can issue an intelligent contract for basic asset screening through a client corresponding to the asset management party. The intelligent contract may include: contract code corresponding to the underlying asset screening logic.

And contract codes corresponding to the basic asset screening logic are used for selecting basic assets matched with the transfer information from the basic assets of the original rights beneficiary stored in the basic asset management chain, and sending the screened basic assets to the securitized asset management chain through cross-chain relays.

2. Securitized asset distribution chain

Intelligent contracts for creating underlying asset pools are deployed on securitized asset distribution chains.

When implemented, an asset manager may issue intelligent contracts to a securitized asset distribution chain for creating a base asset pool through a client corresponding thereto

Intelligent contracts for creating a base asset pool may include: contract code corresponding to the asset acquisition logic, contract code corresponding to the entitlement logic, and contract code corresponding to the asset packaging logic.

1) And the contract code corresponding to the asset acquisition logic is used for sending the transfer information transferred to the original equity beneficiary of the basic asset from the asset management side to the node equipment of the basic asset management chain through the cross-chain relay, and when the screened basic asset matched with the transfer information returned by the node equipment of the basic asset management chain through the cross-chain relay is received, creating a basic asset pool based on the received basic asset.

2) And contract codes corresponding to the right confirming logic are used for initiating right confirming treatment aiming at the basic assets in the basic asset pool after the basic asset pool is established, and changing the rights holders of the basic assets in the basic asset pool to the asset management side after the asset management side confirms the rights of the basic assets in the basic asset pool.

3) And the contract code corresponding to the asset packaging logic is used for packaging the basic asset pool if the rating report of the basic asset in the basic asset pool is stored on the block chain after the confirmation of the basic asset in the basic asset pool is finished.

The node devices of the underlying asset management chain and the node devices of the securitized asset distribution chain may communicate through a cross-chain relay.

3. Bank platform

And the bank platform is used for maintaining an account of an original rights beneficiary of the basic assets, an account of an asset management party and an account of a securitized asset investor, transferring funds, and chaining and storing transfer information among the parties.

For convenience of description, the original equity beneficiary of the basic asset is simply referred to as the original equity beneficiary; the asset management party is called as the management party for short; investors of securitized assets are referred to as investors. And will not be described in detail below.

Referring to fig. 5, fig. 5 is a flow chart illustrating a block chain based asset management method according to an exemplary embodiment of the present description. The method is applied to node equipment on a securitized asset distribution chain and can comprise the following steps.

Step 502: receiving basic asset subscription transaction sent by a client by node equipment of a securitized asset distribution chain; the basic asset subscription transaction is sent by the client when the client monitors the transfer information of the asset management party to the original rights beneficiary of the basic asset, wherein the transfer information is stored in the ledger of the securitized asset distribution chain.

When the method is implemented, the bank platform can send transfer information to a securitized asset distribution chain after monitoring the transfer information transferred from an asset management party (a management party for short) to an original rights beneficiary (namely the original rights beneficiary) of a basic asset.

After monitoring that the transfer information is stored in the securitized distribution chain, a client (such as a client of a management party) can issue an asset subscription transaction to a node device of the securitized asset distribution chain, wherein the transfer information is carried in the asset subscription transaction.

Step 504: and the node equipment of the securitized asset distribution chain sends the basic asset subscription transaction to other node equipment in the securitized asset distribution chain, and performs consensus processing on the basic asset subscription transaction.

Upon receiving the asset subscription transaction, a node device of a securitized asset distribution chain may send the base asset subscription transaction to other node devices in the securitized asset distribution chain. The node device and other node devices of the securitized distribution chain may perform consensus processing on the underlying asset subscription transaction.

The consensus algorithm used herein may be the first type consensus algorithm described above, or the second type consensus algorithm described above, and here, the consensus algorithm is only exemplarily described, and the formula algorithm is not specifically limited.

Step 506: and after the basic asset subscription transaction consensus passes, executing a contract code of an intelligent contract called by the basic asset subscription transaction stored in an account book of the securitized asset distribution chain by the node equipment of the securitized asset distribution chain, sending the transfer information to the node equipment of the basic asset management chain through a cross-link relay, executing the contract code of the intelligent contract called by the asset screening transaction stored in the basic asset management chain when the node equipment of the basic asset management chain receives the asset screening transaction containing the transfer information, and screening out the basic asset matched with the transfer information from the basic asset stored in the basic asset management chain.

In an embodiment of the present specification, after the basic asset subscription transaction agreement passes, the node device of the securitized asset distribution chain may invoke an intelligent contract deployed in the ledger of the securitized asset distribution chain in response to the basic asset subscription transaction, execute a contract code corresponding to the asset acquisition logic in the intelligent contract described above, and send the transfer information to the node device of the basic asset management chain through a cross-link relay.

In an alternative sending mode, the node device of the securitized asset distribution chain can directly send the transfer information to the under-chain part of the node device of the basic asset management chain through a cross-chain relay. The down-link portion of the node device of the base asset management chain may generate an asset screening transaction after receiving the transfer information and send the asset screening transaction to the up-link portion of the node device of the base asset management chain. Wherein the asset screening transaction includes the transfer information.

In another alternative implementation, a node device of a securitized asset distribution chain may generate an asset screening transaction based on the transfer information and send the asset screening transaction to a node device of an underlying asset management chain via a cross-chain relay.

No matter the assets screening transaction sent by the node equipment of the securitized asset distribution chain or the assets screening transaction generated by the node equipment of the basic asset management chain, the node equipment of the basic asset management chain can send the assets screening transaction to other node equipment of the basic asset management chain after receiving the assets screening transaction. All node devices on the underlying asset management chain may agree upon the asset screening transaction.

After the consensus passes, the node device of the base asset management chain may invoke an intelligent contract deployed in the ledger of the base asset management chain in response to the asset screening transaction. The node device of the base asset management chain may then execute a contract code in the intelligent contract corresponding to the base asset screening logic to screen out base assets matching the transfer information among the base assets stored by the base asset management chain.

Optionally, the transfer information includes a transfer amount, and when screening the basic assets matched with the transfer information, the node device of the basic asset management chain can screen out the basic assets matched with the transfer amount value and the asset value from the basic assets stored in the basic asset management chain.

The asset value of the basic asset is matched with the value of the transfer amount, and the asset value of the basic asset can be completely consistent with the value of the transfer amount.

For example, if the underlying asset generates a cash flow of 1000 thousand and the transfer amount is also 1000 thousand, then the asset value of the underlying asset matches the value of the transfer amount.

Of course, the asset value of the base asset is matched with the value of the transfer amount, which may also mean that the asset value of the base asset is a preset multiple of the value of the transfer amount, and the asset value of the base asset is nearly consistent with the value of the transfer amount.

For example, the asset value of the underlying asset is 1.1 times the transfer amount, for example. Assuming that the asset value of the underlying asset is 1100 tens of thousands and the transfer amount is 1000 thousands, the asset value of the underlying asset can be considered to match the transfer amount.

Alternatively, assume that the asset value of the underlying asset is 0.9 times the transfer amount. Assuming that the asset value of the base asset is 900 tens of thousands and the transfer amount is 1000 thousands, the asset value of the base asset can be considered to match the transfer amount.

In an embodiment of the present specification, after screening out the basic assets that match the transfer information, the node device of the basic asset management chain may send the screened out basic assets to the node device of the securitized asset management chain through a cross-chain relay.

Further, in order to prevent the screened-out base assets from being secondarily securitized, in the embodiment of the present specification, the node device of the base asset management chain may change the state of the screened-out base assets to a frozen state.

When the screened base assets are set to be in the frozen state, an alternative implementation manner is that the state information of the base assets is maintained on the node devices of the base asset management chain, and the intelligent contract invoked by the asset screening transaction can set the state information of the base assets screened by the node devices of the base asset management chain to be in the frozen state.

In another alternative implementation, the status information for the screened base assets may be maintained on the asset manager platform. The intelligent contract called by the asset screening transaction can generate a freezing event, and after the asset management platform monitors the freezing event, the state information of the screened basis maintained by the asset management platform can be set to be in a freezing state, and asset state updating success information is submitted to the intelligent contract. After receiving the successful update information of the asset state, the intelligent contract can determine that the screened basic asset is in a frozen state.

Step 508: receiving screened basic assets returned by the node equipment of the basic asset management chain by the node equipment of the securitized asset distribution chain, and establishing a basic asset pool based on the screened basic assets; wherein the base pool of assets is for issuing securitized assets as value supports.

In an embodiment of the present specification, upon receiving the screened base assets returned by the node devices of the base asset management chain, the node devices of the securitized asset distribution chain may create a base asset pool based on the screened base assets.

In addition, in this embodiment of the present specification, after the base asset pool is created, the node device of the blockchain may also perform the right confirmation on the base asset.

In implementation, after the creation of the basic asset pool is completed, the node device of the securitized asset management chain may execute a contract code corresponding to the authorization logic in the intelligent contract called by the basic asset underwriting transaction, and initiate authorization processing for the basic asset in the basic asset pool. And after the asset management party confirms the right of the basic assets in the basic asset pool, updating the rights and interests person corresponding to the base assets after the right confirmation as the asset management party.

For example, a node device of a securitized asset management chain may execute contract code corresponding to the equity logic in a smart contract invoked by the base asset underwriting transaction to generate an equity event in a contract account of the smart contract. When the bank platform monitors the right confirming event, the asset management party can be reminded to confirm the basic assets in the basic asset pool and sign. After the property manager completes the right confirmation, the bank platform submits the right confirmation information (such as the property manager signature) submitted by the property manager to the intelligent contract. After receiving the right confirming information, the intelligent contract can confirm that the asset management party confirms the right of the base asset in the base asset, and then the intelligent contract can update the rights and interests corresponding to the base asset to the asset management party.

In updating equiters, in an alternative implementation, equiter information for the underlying assets is maintained on node devices of a securitized asset distribution chain. When updated, the intelligent contract for a securitized asset distribution chain may update the equiter of the secured base asset maintained on the node device of the securitized asset distribution chain as an asset manager.

In another alternative implementation, the authorized equiter information of the base asset is maintained on the asset management platform, the intelligent contract may generate an equiter update event, and after the asset management platform monitors the equiter update event, the equiter of the authorized base asset maintained on the asset management platform may be updated to the asset manager, and the equiter update success information may be submitted to the intelligent contract of the securitized asset distribution chain. After receiving the successful update information of the equiter, the intelligent contract can determine that the equiter of the base asset after the right confirmation is updated as the asset management party.

Further, in this specification embodiment, after the base assets in the base asset pool are authenticated, the node devices of the securitized distribution chain may execute the contract code corresponding to the asset packaging logic in the base asset underwriting transaction call intelligent contract to determine whether a rating report for the base assets in the base asset pool is stored on the blockchain. Wherein the rating report includes qualification information of the base asset as a securitized asset by the rating organization, such as the rating report may include an issued report or the like.

And if the block chain stores the rating report aiming at the basic assets in the basic asset pool, packaging the basic asset pool.

When the base asset pool is packaged, the intelligent contract is set for one packaging period (for example, three months) of the base asset pool. The base assets in the pool of base assets cannot be transferred within the packaging cycle, thereby preventing the same base asset from being issued in a second securitization.

Subsequently, the asset manager may issue securitized assets on the market with the underlying assets in the underlying asset pool as value supports.

Referring to fig. 6, fig. 6 is a flow chart of a blockchain-based asset management method, securitized asset distribution chain and underlying asset management chain, shown in an exemplary embodiment of the present description; the method can be applied to node equipment of the basic asset management chain and can comprise the following steps.

Step 602: receiving asset screening transaction by node equipment of a basic asset management chain; the asset screening transaction includes transfer information transferred from the asset manager to the original equity owner of the underlying asset.

Step 604: and the node equipment of the basic asset management chain sends the asset screening transaction to other node equipment in the basic asset management chain, and performs consensus processing on the asset screening transaction.

How the node device of the underlying asset management chain receives the asset screening transaction may refer to the steps in steps 502 to 506 above, which are not described herein again.

Step 606: after the asset screening transaction consensus passes, the node equipment of the basic asset management chain executes contract codes of intelligent contracts called by the asset screening transaction stored in the book of the basic asset management chain, screens out basic assets matched with the transfer information from the basic assets stored in the basic asset management chain, and sends the screened out basic assets to the node equipment of the securitized asset issuing chain through cross-chain relay so as to create a basic asset pool by the node equipment of the securitized asset issuing chain based on the screened out basic assets; wherein the base pool of assets is for issuing securitized assets as value supports.

Upon receiving the asset screening transaction, a node device of the underlying asset management chain may send the asset screening transaction to other node devices of the underlying asset management chain. All node devices on the underlying asset management chain may agree upon the asset screening transaction.

After the consensus passes, the node device of the base asset management chain may invoke the intelligent contract deployed in the ledger of the base asset management chain in response to the asset screening transaction. The node device of the base asset management chain may then execute a contract code in the intelligent contract corresponding to the base asset screening logic to screen out base assets matching the transfer information among the base assets stored by the base asset management chain.

In this embodiment, after screening out the basic assets matching the transfer information, the node device of the basic asset management chain may send the screened out basic assets to the node device of the securitized asset management chain through a cross-chain relay, so that the node device of the securitized asset management chain creates a basic asset pool based on the screened out basic assets, and performs right confirming and packaging processing on the basic asset pool. The implementation of creating the base asset pool, and performing the right determination and the packaging processing on the base asset pool may refer to step 508 above, which is not described herein again.

Corresponding to the above embodiments of the asset management method based on the block chain, the present specification also provides embodiments of an asset management device based on the block chain.

Corresponding to the above embodiment of the asset management method based on the block chain, the present specification also provides an embodiment of an asset management device based on the block chain. Embodiments of the blockchain-based asset management apparatus of the present specification may be applied to electronic devices. The device embodiments may be implemented by software, or by hardware, or by a combination of hardware and software. Taking a software implementation as an example, as a logical device, the device is formed by reading, by a processor of the electronic device where the device is located, a corresponding computer program instruction in the nonvolatile memory into the memory for operation. From a hardware aspect, as shown in fig. 7, the block chain-based default asset processing apparatus in this specification is a hardware structure diagram of an electronic device in which the apparatus is located, except for the processor, the memory, the network interface, and the nonvolatile memory shown in fig. 7, the electronic device in which the apparatus is located in the embodiment may also include other hardware according to an actual function of the electronic device, which is not described again.

Referring to fig. 8, fig. 8 is a block diagram of a block chain-based asset management device according to an exemplary embodiment of the present disclosure. The block chain includes: securitized asset distribution chains and basic asset management chains; the basic asset management chain stores basic assets issued by clients, and the method is applied to node equipment on a securitized asset issuing chain, and the device comprises the following steps:

a receiving module 801, which receives a basic asset subscription transaction sent by a client; the basic asset subscription transaction is sent when the client monitors the transfer information of an asset management party to an original right beneficiary of the basic asset, wherein the transfer information is stored in an account book of the securitized asset distribution chain;

a consensus module 802, configured to send the basic asset subscription transaction to other node devices in the securitized asset distribution chain, and perform consensus processing on the basic asset subscription transaction;

an executing module 803, configured to execute a contract code of an intelligent contract called by the basic asset subscription transaction stored in the ledger of the securitized asset distribution chain after the basic asset subscription transaction consensus passes, send the transfer information to a node device of the basic asset management chain through a cross-link relay, so that when the node device of the basic asset management chain receives an asset screening transaction including the transfer information, the contract code of the intelligent contract called by the asset screening transaction stored in the basic asset management chain is executed, and in the basic assets stored in the basic asset management chain, a basic asset matched with the transfer information is screened;

a creating module 804, configured to receive the screened basic assets returned by the node devices of the basic asset management chain, and create a basic asset pool based on the screened basic assets; wherein the base pool of assets is for issuing securitized assets as value supports.

Optionally, the right determining module 805 (not shown in fig. 8) further executes a contract code in an intelligent contract called by a base asset underwriting transaction after the base asset pool is created, initiates a right determining process for the base asset in the base asset pool, and updates an original right beneficiary corresponding to the right determined base asset as the asset manager after the asset manager determines the right of the base asset in the base asset pool.

Optionally, the packaging module 806 (not shown in fig. 8) further executes contract codes in the smart contracts called by the base asset underwriting transaction after the base asset in the base asset pool is authenticated, and determines whether a rating report for the base asset in the base asset pool is stored on the blockchain;

Referring to fig. 9, fig. 9 is a block diagram of another blockchain-based asset management device according to an exemplary embodiment of the present disclosure. The block chain includes: securitized asset distribution chains and basic asset management chains; the basic asset management chain stores basic assets issued by a client, the method is applied to node equipment on the basic asset management chain, and the device comprises the following steps:

a receiving module 901, which receives asset screening transactions; the asset screening transaction comprises transfer information transferred by an original equity owner of the base asset from an asset management party;

a consensus module 902, configured to send the asset screening transaction to other node devices in the basic asset management chain, and perform consensus processing on the asset screening transaction;

a screening module 903, configured to execute a contract code of an intelligent contract called by the asset screening transaction stored in the ledger of the basic asset management chain after the asset screening transaction consensus passes, screen out a basic asset matching the transfer information from the basic assets stored in the basic asset management chain, and send the screened basic asset to a node device of the securitized asset distribution chain through a cross-link relay, so that a basic asset pool is created by the node device of the securitized asset distribution chain based on the screened basic asset; wherein the base pool of assets is for issuing securitized assets as value supports.

the screening module 903 screens out the basic assets whose asset value matches the value of the transfer amount from the basic assets stored in the basic asset management chain.

Optionally, the freeze module 904 (not shown in fig. 9) sets the status of the screened base assets to a frozen status after screening the base assets that match the transfer information.

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. A typical implementation device is a computer, which may take the form of a personal computer, laptop computer, cellular telephone, camera phone, smart phone, personal digital assistant, media player, navigation device, email messaging device, game console, tablet computer, wearable device, or a combination of any of these devices.

In a typical configuration, a computer 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 disk storage, quantum memory, graphene-based storage media 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.

It should also be noted that 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, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.

The terminology used in the description of the one or more embodiments is for the purpose of describing the particular embodiments only and is not intended to be limiting of the description of the one or more embodiments. As used in one or more embodiments of the present specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in one or more embodiments of the present description to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of one or more embodiments herein. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.

The above description is only for the purpose of illustrating the preferred embodiments of the one or more embodiments of the present disclosure, and is not intended to limit the scope of the one or more embodiments of the present disclosure, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the one or more embodiments of the present disclosure should be included in the scope of the one or more embodiments of the present disclosure.

Claims

1. A method of asset management based on blockchains, said blockchains comprising a securitized asset distribution chain and a base asset management chain; the basic asset management chain stores basic assets issued by a client; the method is applied to a node device on a securitized asset distribution chain, and comprises the following steps:

2. The method of claim 1, further comprising:

after the basic asset pool is established, contract codes in intelligent contracts called by basic asset subscription transactions are further executed, the authority confirming processing for the basic assets in the basic asset pool is initiated, and after the asset management party confirms the authority of the basic assets in the basic asset pool, original authority beneficiaries corresponding to the base assets after the authority confirming are updated to the asset management party.

3. The method of claim 1, further comprising:

after the base asset in the base asset pool is authenticated, further executing contract codes in intelligent contracts called by base asset underwriting transactions, and determining whether a rating report for the base assets in the base asset pool is stored on the blockchain;

4. The method of claim 1, the securitized asset being a bond or fund; the underlying assets are underlying debt assets.

5. A method of asset management based on blockchains, said blockchains comprising a securitized asset distribution chain and a base asset management chain; the basic asset management chain stores basic assets issued by a client; the method is applied to node equipment on an underlying asset management chain, and comprises the following steps:

6. The method of claim 5, the transfer information comprising: transferring the amount of money;

screening out the basic assets matched with the transfer information comprises the following steps:

7. The method of claim 5, further comprising:

and after screening out the basic assets matched with the transfer information, setting the state of the screened basic assets into a freezing state.

8. The method of claim 5, the securitized asset being a bond or fund; the underlying assets are underlying debt assets.

9. A blockchain-based asset management device, the blockchain comprising a securitized asset distribution chain and a base asset management chain; the basic asset management chain stores basic assets issued by a client; the device is applied to node equipment on a securitized asset distribution chain, and comprises:

10. The apparatus of claim 9, the apparatus further comprising:

and the right confirming module is used for further executing contract codes in an intelligent contract called by the basic asset subscription transaction after the basic asset pool is established, initiating right confirming processing aiming at the basic assets in the basic asset pool, and updating original rights beneficiaries corresponding to the righted basic assets into the asset management party after the asset management party confirms the rights of the basic assets in the basic asset pool.

11. The apparatus of claim 9, the apparatus further comprising:

the packaging module is used for further executing contract codes in intelligent contracts called by basic asset subscription transactions after the basic asset in the basic asset pool is authenticated, and determining whether a rating report aiming at the basic assets in the basic asset pool is stored on the block chain;

12. The apparatus of claim 9, the securitized asset being a bond or fund; the underlying assets are underlying debt assets.

13. A blockchain-based asset management device, the blockchain comprising a securitized asset distribution chain and a base asset management chain; the basic asset management chain stores basic assets issued by a client; the device is applied to node equipment on a basic asset management chain, and comprises:

14. The apparatus of claim 13, the transfer information comprising: transferring the amount of money;

15. The apparatus of claim 13, the apparatus further comprising:

and the freezing module is used for setting the state of the screened basic assets into a freezing state after screening the basic assets matched with the transfer information.

16. The apparatus of claim 13, the securitized asset being a bond or fund; the underlying assets are underlying debt assets.

17. An electronic device, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor implements the method of any one of claims 1-4 by executing the executable instructions.

18. A computer readable storage medium having stored thereon computer instructions which, when executed by a processor, carry out the steps of the method according to any one of claims 1 to 4.

19. An electronic device, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor implements the method of any one of claims 5-8 by executing the executable instructions.

20. A computer readable storage medium having stored thereon computer instructions which, when executed by a processor, carry out the steps of the method according to any one of claims 5 to 8.