CN110009489A - Based on the assets transfer method and device of block chain, electronic equipment - Google Patents

Abstract

A blockchain-based asset transfer method is applied to an asset circulation system; the asset circulation system includes an asset issuer and a multi-level asset holder; the first-level asset holder among the multi-level asset holders holds the The first asset object created based on the first accounts payable between the asset issuer and the first-level asset holder; including: receiving the first transaction sent by the first-level asset holder; the first transaction includes the first-level asset holder The second account payable between the asset holder and the second-level asset holder; in response to the first transaction, the first account payable is matched with the second account payable, and the second account payable is When the amount is not greater than the amount of the first account payable, the asset splitting logic declared in the smart contract is called to split the second asset object matching the second account payable from the first asset object; The second asset object is transferred to the second-level asset holder for holding.

Description

Blockchain-based asset transfer method and device, electronic equipment

technical field

One or more embodiments of this specification relate to the field of blockchain technology, and in particular, to a method and apparatus for transferring assets based on blockchain, and electronic equipment.

Background technique

Blockchain technology, also known as distributed ledger technology, is an emerging technology in which several computing devices jointly participate in "bookkeeping" and jointly maintain a complete distributed database. Due to the characteristics of decentralization, openness and transparency of blockchain technology, each computing device can participate in database records, and data synchronization between computing devices can be performed quickly, blockchain technology has been widely used in many fields. to apply.

SUMMARY OF THE INVENTION

This specification proposes a blockchain-based asset transfer method, which is applied to an asset circulation system based on blockchain; the asset circulation system includes an asset issuer and a multi-level asset holder; wherein, the multi-level asset a first-level asset holder among the holders, holding a first asset object created based on a first account payable between the asset issuer and the first-level asset holder; the method includes :

Receive a first transaction sent by the first-level asset holder; the first transaction includes a relationship between the first-level asset holder and a second-level asset holder in the multi-level asset holder the second accounts payable in between;

matching the first account payable with the second account payable in response to the first transaction, and when the amount of the second account payable is not greater than the amount of the first account payable , calling the asset splitting logic declared in the smart contract published on the blockchain, splitting the first asset object, and splitting the second asset object from the first asset object The second asset object of the account matching;

The split second asset object is transferred to the second-level asset holder for holding.

Optionally, the method further includes:

If the amount of the second account payable is greater than the amount of the first account payable, a notification message of asset transfer failure is returned to the first-level asset holder.

Optionally, the method further includes:

receiving a second transaction sent by the asset issuer; the second transaction includes the first account payable;

In response to the second transaction, the asset creation logic declared in the smart contract published on the blockchain is invoked, the first asset object is created based on the first accounts payable, and the created first asset object is created. An asset object is transferred to said first-level asset holder for holding; and,

generating an asset creation record corresponding to the first asset object, and publishing the generated asset creation record to the blockchain for deposit; wherein, the asset creation record includes the first accounts payable and the first Correspondence between asset objects.

Optionally, before the creating the first asset object based on the first accounts payable, the method further includes:

Determine whether there is a certificate on the blockchain for the first account payable created by the asset issuer for the first-level asset holder and confirmed by the first-level asset holder If yes, further create the first asset object based on the first accounts payable.

Optionally, creating the first asset object based on the first accounts payable includes:

obtaining the amount of the first accounts payable;

converting the amount of the first accounts payable into an asset amount;

Create an asset object equal to the amount of the first asset to obtain the first asset object.

Optionally, before splitting the first asset object, the method further includes:

Determine whether there is a certificate on the blockchain that is created by the first-level asset holder for the second-level asset holder and confirmed by the second-level asset holder. Second accounts payable; if yes, further splitting the first asset object.

Optionally, performing splitting processing on the first asset object, and splitting a second asset object matching the second accounts payable from the first asset object, including:

obtaining the amount of the second accounts payable;

converting the amount of the second account payable into an asset amount;

Splitting an asset object equal to the asset amount from the first asset object to obtain the second asset object.

Optionally, also include:

After the second asset object matching the second account payable is split from the first asset object, an asset creation record corresponding to the second asset object is generated, and the generated asset creation record is published Store the certificate in the blockchain; wherein, the asset creation record includes the corresponding relationship between the second asset object and the second account payable;

After the split second asset object is transferred to the second-level asset holder for holding, an asset circulation record corresponding to the first asset object is generated, and the generated asset circulation record is released The asset transfer record includes the first asset object, the second asset object split from the first asset object, and the asset holding the second asset object. The correspondence between the holders of the second asset.

Optionally, the asset circulation system is a supply chain financial system; the supply chain financial system includes a core enterprise as an asset issuer, a multi-level supplier as an asset holder, and a financial institution; wherein the asset The object is used to initiate a financing loan to the financial institution.

Optionally, the method further includes:

receiving a third transaction sent by any target supplier among the multi-tier suppliers; the third transaction includes a third asset object for initiating a financing loan to the financial institution;

In response to the third transaction, the third asset object is transferred to the financial institution for holding, so that the financial institution is in the process of confirming the third account payable corresponding to the third asset object. Then, the asset amount of the third asset object is converted into a capital quota, and a loan is issued to the target supplier based on the converted capital quota.

This specification also proposes a blockchain-based asset transfer device, which is applied to an asset circulation system based on blockchain; the asset circulation system includes an asset issuer and a multi-level asset holder; a first-level asset holder among the asset holders, holding a first asset object created based on a first account payable between the asset issuer and the first-level asset holder; the device include:

The receiving module receives the first transaction sent by the first-level asset holder; the first transaction includes the first-level asset holder and the second-level asset holder in the multi-level asset holder second accounts payable between parties;

A splitting module, in response to the first transaction, matching the first account payable with the second account payable, and when the amount of the second account payable is not greater than the first account payable When the amount of the payment is received, the asset splitting logic declared in the smart contract published on the blockchain is invoked, the first asset object is split, and the first asset object is split with all the second asset object matching the second account payable;

The transfer module transfers the split second asset object to the second-level asset holder for holding.

Optionally, the splitting module further:

If the amount of the second account payable is greater than the amount of the first account payable, a notification message of asset transfer failure is returned to the first-level asset holder.

Optionally, the receiving module further:

receiving a second transaction sent by the asset issuer; the second transaction includes the first account payable;

The device also includes:

The creation module, in response to the second transaction, invokes the asset creation logic declared in the smart contract published on the blockchain, creates the first asset object based on the first account payable, and sets the created the first asset object is transferred to the first-level asset holder for holding; and,

generating an asset creation record corresponding to the first asset object, and publishing the generated asset creation record to the blockchain for deposit; wherein, the asset creation record includes the first accounts payable and the first Correspondence between asset objects.

Optionally, the creation module further:

Before creating the first asset object based on the first accounts payable, determine whether there is a certificate on the blockchain that is created by the asset issuer for the first-level asset holder, and stored by the asset The first account payable after the first-level asset holder confirms the right; if so, the first asset object is further created based on the first account payable.

Optionally, the creation module:

obtaining the amount of the first accounts payable;

converting the amount of the first accounts payable into an asset amount;

Create an asset object equal to the amount of the first asset to obtain the first asset object.

Optionally, the splitting module further:

Before splitting the first asset object, determine whether there is a certificate on the blockchain created by the first-level asset holder for the second-level asset holder, and stored by the The second accounts payable after the second-level asset holder confirms the rights; if so, further splitting the first asset object is performed.

Optionally, the splitting module:

obtaining the amount of the second accounts payable;

converting the amount of the second account payable into an asset amount;

Splitting an asset object equal to the asset amount from the first asset object to obtain the second asset object.

Optionally, the device further includes:

The generating module, after splitting the second asset object matching the second accounts payable from the first asset object, generates an asset creation record corresponding to the second asset object, and converts the generated asset The creation record is published to the blockchain for deposit; wherein, the asset creation record includes the corresponding relationship between the second asset object and the second account payable;

After the split second asset object is transferred to the second-level asset holder for holding, an asset circulation record corresponding to the first asset object is generated, and the generated asset circulation record is released The asset transfer record includes the first asset object, the second asset object split from the first asset object, and the asset holding the second asset object. The correspondence between the holders of the second asset.

Optionally, the asset circulation system is a supply chain financial system; the supply chain financial system includes a core enterprise as an asset issuer, a multi-level supplier as an asset holder, and a financial institution; wherein the asset The object is used to initiate a financing loan to the financial institution.

Optionally, the receiving module further:

receiving a third transaction sent by any target supplier among the multi-tier suppliers; the third transaction includes a third asset object for initiating a financing loan to the financial institution;

The transfer module further:

In response to the third transaction, the third asset object is transferred to the financial institution for holding, so that the financial institution is in the process of confirming the third account payable corresponding to the third asset object. Then, the asset amount of the third asset object is converted into a capital quota, and a loan is issued to the target supplier based on the converted capital quota.

This specification also proposes an electronic device, which is applied to an asset circulation system based on blockchain; the asset circulation system includes an asset issuer and a multi-level asset holder; wherein, among the multi-level asset holders The first-level asset holder holds the first asset object created based on the first accounts payable between the asset issuer and the first-level asset holder; including:

processor;

memory for storing machine-executable instructions;

wherein, by reading and executing machine-executable instructions stored in the memory corresponding to control logic for blockchain-based asset transfers, the processor is caused to:

Receive a first transaction sent by the first-level asset holder; the first transaction includes a relationship between the first-level asset holder and a second-level asset holder in the multi-level asset holder the second accounts payable in between;

matching the first account payable with the second account payable in response to the first transaction, and when the amount of the second account payable is not greater than the amount of the first account payable , calling the asset splitting logic declared in the smart contract published on the blockchain, splitting the first asset object, and splitting the second asset object from the first asset object The second asset object of the account matching;

The split second asset object is transferred to the second-level asset holder for holding.

Description of drawings

FIG. 1 is a flowchart of a method for asset transfer based on blockchain provided by an exemplary embodiment.

FIG. 2 is a schematic structural diagram of an electronic device provided by an exemplary embodiment.

FIG. 3 is a block diagram of a blockchain-based asset transfer apparatus provided by an exemplary embodiment.

Detailed ways

In this specification, the purpose of this specification is to propose an asset circulation system composed of asset issuers and multi-level asset holders based on blockchain. Accounts, in the form of digital assets, are based on the technical scheme of transferring the accounts payable between the first asset holder and the lower-level asset holders to the lower-level asset holders after continuing to split.

During implementation, the first-level asset holder among the above-mentioned multi-level asset holders can hold the first asset object created based on the first accounts payable between the asset issuer and the first-level asset holder .

The above-mentioned first-level asset holder can construct a transaction based on the second account payable with the second-level asset holder among the above-mentioned multi-level asset holders, and carry out the transaction in the blockchain. Release, to call the smart contract deployed on the blockchain to complete the split transfer of the first asset object.

After receiving the transaction, the node device in the blockchain can respond to the transaction and match the first account payable with the second account payable; if matched, confirm the amount of the second account payable If the amount is not greater than the amount of the above-mentioned first accounts payable, the asset splitting logic declared in the smart contract published on the blockchain can be called to split the first asset object, and split the first asset object from the first asset object. Separating the second asset object matching the second account payable, and transferring the split second asset object to the second-level asset holder for holding.

While the second-tier asset holder can perform the same operations as the first-tier asset holder, based on the third-tier accounts payable with the third-tier asset holder among the above-mentioned multi-tier asset holders, continue Construct a transaction, and publish the transaction in the blockchain to call the smart contract deployed on the blockchain to complete the split transfer of the second asset object above, and so on. After the asset object is split, it is transferred to the lower-level asset holder.

Through the above technical solutions, the first accounts payable between the asset issuer and the first-level asset holder can be realized in the form of digital assets based on the payables between the first asset holder and the lower-level asset holder. After the accounts continue to be split, they will continue to be circulated to the lower-level asset holders; thus, under the condition that the first accounts payable between the asset issuer and the first-level asset holders Some parties can use the second accounts payable with the superior asset holder as a digital asset and continue to transfer it to the inferior asset holder to replace the flow of funds, so it can minimize the amount of money due to the superior asset holder. The unpaid accounts payable with the asset issuer will have an impact on the normal operation of the lower-level asset holder.

The present specification will be described below through specific embodiments and in conjunction with specific application scenarios.

Please refer to FIG. 1. FIG. 1 is a block chain-based asset transfer method provided by an embodiment of this specification, which is applied to an asset circulation system based on a block chain; the asset circulation system includes an asset issuer and a multi-level asset transfer system. Asset holders, perform the following steps:

Step 102: Receive a first transaction sent by the first-level asset holder; the first transaction includes the first-level asset holder and the second-level asset holder in the multi-level asset holder. second accounts payable between parties;

Step 104, in response to the first transaction, match the first account payable with the second account payable, and if the amount of the second account payable is not greater than the first account payable When the amount of the asset, the asset splitting logic declared in the smart contract published on the blockchain is called, the first asset object is split, and the first asset object is split from the first asset object. The second asset object matched by the second account payable;

Step 106: Transfer the split second asset object to the second-level asset holder for holding.

The blockchain described in this specification can specifically include any type of blockchain network that can cover asset objects among the supported objects.

For example, in the traditional blockchain, the supported objects usually only include account objects and contract objects (ie smart contracts), while in this specification, the objects supported by the blockchain can be extended. Based on the existing support such as account objects and contract objects, an asset object is further extended.

Among them, it should be noted that the type of blockchain described in this specification is not particularly limited, and can be a private chain, a public chain, a consortium chain, etc.;

For example, in one scenario, the above-mentioned blockchain may specifically be a consortium chain composed of asset issuers and multi-level asset holders as consortium members. The operator of the alliance chain can build an asset circulation system composed of asset issuers and multi-level asset holders based on the alliance chain, and use the accounts payable between the asset issuer and multi-level asset holders as digital Assets are circulated in the asset circulation system.

The above-mentioned smart contracts are also called contract objects in the blockchain based on the account model. Specifically, they can be published in the blockchain by the target members of the blockchain, and stored in the distributed database (ie, block chain) of the blockchain. Chain ledger), a smart contract program used to manage the asset objects supported by the blockchain. Users who access the blockchain can create an asset object on the blockchain by calling the above smart contract, and complete the online management and transfer of the asset object held on the blockchain.

The transaction described in this specification refers to a piece of data that is created by the user through the client of the blockchain and needs to be finally released to the distributed database of the blockchain.

Transactions in the blockchain are usually divided into narrow transactions and broad transactions. A transaction in a narrow sense refers to a transfer of value issued by a user to the blockchain; for example, in the traditional Bitcoin blockchain network, a transaction can be a transfer initiated by a user in the blockchain. In a broad sense, a transaction refers to a piece of business data with business intent released by a user to the blockchain; for example, an operator can build a consortium chain based on actual business needs, and rely on the consortium chain to deploy some other types that have nothing to do with value transfer. (for example, anti-counterfeiting verification business, rental business, vehicle scheduling business, insurance claims business, credit service, medical service, etc.), and in this kind of alliance chain, the transaction can be a transaction published by the user in the alliance chain A business message or business request with business intent.

The above asset objects can correspond to any type of real assets of the user in the real world; or, other forms of objects that can be used as digital assets for circulation and transfer;

For example, the above asset objects may be real assets such as funds, real estate, stocks, etc., or data such as loan contracts, bills, accounts payable, etc. that are suitable to be packaged as digital assets for circulation and transfer.

The following describes the technical solutions of this specification in detail by taking the above asset circulation system as an example of a supply chain financial system built on the basis of blockchain.

Among them, it should be emphasized that the supply chain financial system based on the blockchain based on the above asset circulation system is only an example, and is not used to limit the technical solutions of this specification; obviously, in practical applications, this field Technicians can flexibly build the above asset circulation system based on actual needs.

In this specification, the above-mentioned supply chain financial system may include core enterprises as asset issuers, multi-level suppliers as asset holders, and financial institutions (such as banks).

Among them, the core enterprise can create a first-level supplier for the first-level supplier based on the above-mentioned first account payable before the first-level account payable with the first-level supplier among the above-mentioned multi-level suppliers has not been paid Asset objects, and the above first asset objects are held by the above first tier suppliers;

The above-mentioned first-tier supplier may split the above-mentioned first asset object based on the second accounts payable with the second-tier supplier in the above-mentioned multi-tier supplier, and split it from the first asset object The second asset object that matches the second account payable is obtained, and the split second asset object is transferred to the second-level supplier for holding.

The second-tier supplier among the above-mentioned multi-tier suppliers can perform the same actions as the first-tier supplier, and continue to split the second-tier asset object based on the third-tier accounts payable with the third-tier supplier , and continue to transfer the split asset object to the lower-level supplier, and so on, and finally the first asset object can be transferred to the lower-level supplier based on the debt relationship between the suppliers at all levels.

The above-mentioned financial institutions can provide financing services to suppliers at all levels. For any tier-one supplier, when the first account payable is due, based on the amount of the asset object held, it can collect the corresponding amount of accounts payable funds from the core enterprise; Before the account payable is due and paid, the asset object held is transferred to the above-mentioned financial institution to initiate financing from the financial institution.

The operators of the above-mentioned blockchains can expand the objects supported by the blockchains when building a blockchain network.

In traditional blockchains (such as Ethereum), the objects supported by the blockchain usually only include account objects and contract objects (ie, smart contracts). In this specification, the objects supported by the blockchain can be extended, and an asset object can be further extended on the basis of the existing account object and contract object.

That is to say, in this specification, the objects supported by the above-mentioned blockchain can include three types of account objects, contract objects and asset objects. In this way, when core enterprises, multi-level suppliers and financial institutions join the blockchain as blockchain member nodes, in addition to the creation of accounts and smart contracts on the blockchain, they can also be created on the blockchain. Create a digital asset on .

In this specification, the core enterprise can pre-develop a smart contract for managing asset objects (of course, it can also be developed by the blockchain operator or a third party), and declare in the smart contract that it is used to manage assets Executable logic (eg, executable functions, code, etc.) that the object manages.

Among them, in this specification, the executable logic declared in the above smart contract may specifically include asset creation logic for creating asset objects, asset splitting logic for splitting asset objects, and the like.

Of course, in practical applications, those skilled in the art can also declare other forms of executable logic other than asset creation logic and asset splitting logic in smart contracts based on actual business requirements, which are not specifically limited in this specification. .

When the core enterprise completes the development of the smart contract, the developed smart contract can be released in the blockchain in the form of a transaction; and the node device in the blockchain can receive the transaction based on the blockchain support The consensus algorithm is adopted to achieve consensus on the transaction, and after the consensus is passed, the smart contract is included in the distributed database of the blockchain to complete the deployment of the smart contract.

The consensus processing process performed by the node device in the blockchain on the received transaction will not be described in detail in this specification, and those skilled in the art may refer to the records in the related art.

After the above-mentioned smart contracts are deployed in the blockchain, the core enterprises, multi-level suppliers and financial institutions in the above-mentioned supply chain financial system can call the declarations in the smart contracts by publishing transactions to the blockchain. Logic can be executed to complete the creation and splitting of asset objects.

In the illustrated embodiment, the above-mentioned core enterprise may create a first account payable for the first-tier supplier based on the debt relationship with the first-tier supplier among the above-mentioned multi-tier suppliers, and The created first account payable is signed based on the held private key, and the signed first account payable is sent to the first-level supplier, and the first supplier performs the right confirmation process.

Among them, the so-called right confirmation processing refers to confirming the right to receive payment of the account receivable corresponding to the account payable; in practical application, the account payable can be signed by the private key held to obtain the account payable The right to receive payment of the corresponding accounts receivable is confirmed.

After the first-tier supplier receives the first account payable created by the core enterprise for the first-tier supplier, the first-tier supplier can first perform the transaction based on the public key corresponding to the private key held by the core enterprise, the private key of the first account payable. Verification, and after the verification is passed, further based on the private key held by the first-level supplier, the first account payable is signed to complete the confirmation process for the first account payable, and then the confirmed The first accounts payable is published in the blockchain in the form of transactions for deposit certificate processing.

Correspondingly, for the above-mentioned first-tier supplier, it is also possible to create a second account payable for the second-tier supplier based on the debt relationship with the second-tier supplier in the above-mentioned multi-tier supplier, Send the created second account payable to the second-tier supplier, and the second-tier supplier will confirm the right, and then also publish the second-tier account payable information after the right confirmation process in the blockchain for deposit. processing, and so on.

In this way, any tier-one supplier of the above-mentioned multi-tier suppliers can create accounts payable for the lower-level suppliers based on the debt relationship with the lower-tier suppliers, and send the created accounts payable to After the lower-level supplier confirms the rights, the certificate is stored on the blockchain.

In this specification, the core enterprise may construct a transaction for creating an asset object based on the first account payable before the first account payable is redeemed, carry the first account payable in the transaction, and Publish the transaction on the blockchain to invoke the deployed smart contract to create a first asset object for the above-mentioned first-tier supplier;

Wherein, in an example, the first account payable carried in the transaction may specifically be the data content of the first account payable, or may only be the identification information of the first account payable; for example, for the first account payable The hash value obtained by performing hash calculation on the data content of the first account payable.

After receiving the transaction sent by the core enterprise, the node device in the blockchain can respond to the transaction, perform consensus processing on the transaction, and after the consensus is passed, call the statement declared in the above smart contract deployed in the blockchain The asset creation logic creates a first asset object based on the above-mentioned first accounts payable.

Wherein, in the illustrated embodiment, before the node device invokes the asset creation logic declared in the smart contract deployed in the blockchain and creates the first asset object based on the first account payable, the node device may further Find the data stored in the blockchain to confirm whether the first accounts payable created by the core enterprise for the first-tier supplier and confirmed by the first-tier supplier is currently stored on the blockchain; If yes, it proves that the right to receive payment of the first account payable has been transferred to the first-tier supplier, and at this time, the first asset object is created based on the first account payable.

In this way, before the first account payable creates the first asset object for the first tier supplier, it is possible to check whether the first account payable is true after the first tier supplier has confirmed the right Existing accounts payable, so as to avoid losses caused by the creation of asset objects for the first-tier supplier based on false accounts payable or the first-tier supplier does not have the right to receive payment.

In the illustrated embodiment, when the node device invokes the asset creation logic declared in the smart contract deployed in the blockchain to create the first asset object based on the first account payable, it can specifically obtain the first asset object. For the amount of accounts payable, convert the amount of the first accounts payable into an asset amount according to a preset conversion rule, and then create an asset object equal to the converted asset amount to obtain the above-mentioned first asset object. The above conversion rules are not particularly limited in this specification; for example, they may be equivalent conversions or non-equivalent conversions.

After the node device creates the first asset object based on the first account payable by calling the asset creation logic declared in the smart contract, it can transfer the created first asset object to the first-tier supplier (that is, the first-tier supplier). an account payable creditor) to hold it.

For example, during implementation, asset objects created through smart contracts usually have unique address information; in this case, transferring the first created asset object to the above-mentioned first-tier supplier is the transfer of the above-mentioned first asset object. The process of adding the address information of the asset object to the above-mentioned first-tier supplier's corresponding account object on the blockchain.

Further, after completing the creation of the above-mentioned first asset object, or after transferring the above-mentioned first asset object to the above-mentioned first-level asset holder for holding, the node device can also generate an asset creation corresponding to the above-mentioned first asset object. record, and publish the generated asset creation record to the blockchain for evidence. The asset creation record corresponding to the first asset object includes the correspondence between the first account payable and the first asset object.

In this specification, the first-tier supplier may also construct a payment based on the second-tier accounts payable with the second-tier suppliers in the above-mentioned multi-tier suppliers before the first-tier accounts payable are redeemed. In the transaction of transferring the asset object, the second account payable is carried in the transaction, and the transaction is published on the blockchain to call the deployed smart contract to dismantle the above-mentioned first asset object held. Sub-processing, and transfer the second asset object split from the first asset object that matches the second account payable to the second-level supplier for holding, so as to complete the supply of the second-level The second accounts payable between merchants is used as a data asset to be transferred to lower-level suppliers to replace the transfer of funds.

After receiving the transaction sent by the core enterprise, the node device in the blockchain can respond to the transaction, perform consensus processing on the transaction, and after the consensus is passed, carry out the transaction between the above-mentioned first account payable and the above-mentioned second account payable. Matching; if it is confirmed that the amount of the second account payable is not greater than the amount of the first account payable after the match, the asset splitting logic declared in the smart contract deployed in the blockchain can be invoked. The first asset object held by the first-level supplier is split, and the second asset object matching the second account payable is split from the first asset object;

Of course, if the amount of the above-mentioned second account payable is confirmed to be greater than the amount of the above-mentioned first account payable after matching, due to the debt scale between the first-tier supplier and the second-tier supplier, it is already larger than the core enterprise and the first-tier supplier. In this case, the first asset object held by the first-tier supplier cannot be split, and a notification message of asset transfer failure can be returned to the above-mentioned first-tier asset holder;

For example, in a practical application, the above notification message may be a text prompt that the balance of the asset pool is insufficient and the asset transfer fails.

In the illustrated embodiment, the node device calls the asset splitting logic declared in the smart contract deployed in the blockchain to split the first asset object held by the first-tier supplier. Before sub-processing, it is also possible to further search for the data stored in the blockchain to confirm whether the current certification is created by the first-tier supplier for the second-tier supplier and confirmed by the second-tier supplier. If so, it is proved that the right to receive payment corresponding to the corresponding accounts payable should be transferred to the second-tier supplier, and then the first asset object held by the above-mentioned first-tier supplier will be transferred. Split processing.

In the illustrated embodiment, the node device calls the asset splitting logic declared in the smart contract deployed in the blockchain to split the first asset object held by the first-tier supplier. , specifically, the amount of the second account payable can be obtained, the amount of the second account payable can be converted into the asset amount, and then the asset object equal to the asset amount can be split from the first asset object to obtain The second asset object above.

After the node device splits the second asset object matching the second account payable from the first asset object by calling the asset splitting logic declared in the smart contract, it can split the second asset The object is transferred to the above-mentioned second-tier supplier (that is, the creditor of the second account payable) for holding; for example, the address information of the above-mentioned second asset object can still be added to the above-mentioned second-tier supplier. The account object corresponding to the merchant on the blockchain.

It should be noted that if it is confirmed that the amount of the second account payable is exactly the same as the amount of the first account payable after matching, then the asset amounts of the first asset object and the second asset object are also exactly the same; therefore , the above-described process of splitting the second asset object that matches the second account payable from the first asset object and transferring the second asset object to the second-tier supplier is actually equivalent to The process of transferring the entire first asset object to the second-tier supplier.

That is, the debt scale of the accounts payable between the core enterprise and the first-tier supplier is exactly the same as the debt scale of the accounts payable between the first-tier supplier and the second-tier supplier, and the first-tier supplier The collection right of the first account payable can be transferred as a whole to the second-tier supplier, and the subsequent first-tier supplier no longer has the right to collect the first account payable.

Further, after splitting the second asset object that matches the second account payable from the first asset object, the node device may also generate an asset creation record corresponding to the second asset object, and will generate an asset creation record corresponding to the second asset object. The asset creation record is released to the blockchain for storage;

That is to say, splitting the second asset object matching the second account payable from the first asset object is also equivalent to the second account payable between the first-tier supplier and the second-tier supplier. , the process of creating a second asset object for a second-tier supplier.

Wherein, the asset creation record corresponding to the second asset object includes the corresponding relationship between the second asset object and the second account payable.

In addition, after transferring the split second asset object to the second-level asset holder for holding, the node device may also generate an asset flow record corresponding to the first asset object, and store the generated asset The circulation records are released to the blockchain for storage;

That is, splitting the above-mentioned first asset object, and continuing to transfer the split second asset object to the lower-level supplier, is equivalent to continuing to transfer some of the asset objects in the first asset object to the lower-level supplier, Complete asset transfer.

Wherein, the asset circulation record includes the first asset object, the second asset object split from the first asset object, and the second-level supplier holding the second asset object. Correspondence.

Correspondingly, for the second-tier supplier among the above-mentioned multi-tier suppliers, the same actions as the first-tier supplier can also be performed. The debt relationship of accounts payable can continue to be split based on the third account payable with the third-tier supplier in the same way as the above-mentioned second asset object, and the split asset object can continue to be supplied to the lower-level Supplier transfer, and so on, in the end, the first asset object can be continuously transferred to lower-level suppliers based on the debt relationship between suppliers at all levels.

Ultimately, the first asset object created based on the above-mentioned first accounts payable will be continuously split and transferred through the splitting process described above, and will be distributed and held by suppliers at all levels. When the first accounts payable corresponding to the above-mentioned first asset object is about to expire, the core enterprise can initiate a clearing process for the above-mentioned first asset object, by querying the assets stored in the blockchain and generated by suppliers at all levels Circulation records are used to clarify the distribution of the first asset object among suppliers at all levels, determine the suppliers at all levels that hold the asset objects split from the first asset object, and then based on the determined The actual amount of the asset object split from the above-mentioned first asset object held by the first-level supplier is used to complete the payment of the accounts payable respectively.

In other words, since the first account payable is actually in the form of an asset object, it is split into several parts, which are held by suppliers at all levels; Therefore, when the core enterprise pays the above-mentioned first accounts payable, it can pay separately based on the actual share of the above-mentioned first accounts payable held by suppliers at all levels. Pay accounts payable to suppliers at all levels.

In this specification, for any target supplier of the multi-tier suppliers in the above-mentioned supply chain financial system, in addition to the above-mentioned first accounts payable due, based on the amount of the asset object held, In addition to collecting the corresponding amount of accounts payable funds from the above-mentioned core enterprises, since the asset objects held by suppliers at all levels are anchored in the real accounts payable, suppliers at all levels can also transfer the assets objects held, and The accounts payable corresponding to the held asset objects are transferred as collateral to financial institutions such as banks to initiate financing loans.

In this case, the above-mentioned target supplier may construct a transaction for financing a loan based on the third asset object it holds (which is also an asset object split from the above-mentioned first asset object), and transfer the The transaction is published on the blockchain, transferring the third asset object held to the financial institution.

After receiving the transaction sent by the target supplier, the node device in the blockchain can respond to the transaction, perform consensus processing on the transaction, execute the transaction after the consensus is passed, and transfer the third asset object to the financial institution. Hold; for example, the address information of the above-mentioned third asset object can be added to the corresponding account object of the above-mentioned financial institution on the blockchain.

Subsequently, when the above-mentioned first account payable is due, the financial institution may collect the corresponding amount of account payable funds from the above-mentioned core enterprise based on the amount of the asset object held.

When the financial institution receives the third asset object transferred from the target supplier, it can further confirm whether the third account payable corresponding to the third asset object has been transferred to the financial institution and has obtained the confirmation rights of the financial institution. ;

For example, during implementation, the above transaction may also include the asset ID of the third asset object, and the financial institution may query the assets of the third asset object on the blockchain based on the asset ID of the third asset object Create a record to obtain the third account payable corresponding to the third asset object, so as to confirm whether the above target supplier has transferred the third account payable to the financial institution, and has already paid the third account payable right.

If the financial institution confirms that the above-mentioned target supplier has transferred the third account payable to the financial institution, and the financial institution has also confirmed the rights to the third account payable, the financial institution may transfer the above-mentioned third asset object's The asset amount is converted into a capital line, and a loan is issued to the above target supplier based on the converted capital line.

Among them, it should be noted that, after issuing loans to the above-mentioned target suppliers, the financial institution can also generate financing loan records corresponding to the above-mentioned target suppliers, and publish the generated financing loan records to the blockchain for deposit.

In the above technical solution, the first accounts payable between the asset issuer and the first-level asset holder can be realized in the form of digital assets based on the relationship between the first asset holder and the lower-level asset holder. After the accounts payable continues to be split, it will continue to be circulated to the lower-level asset holders; thus, under the condition that the first accounts payable between the asset issuer and the first-level asset holder has not been paid, the assets at all levels will be The holder can use the second account payable with the superior asset holder as a digital asset and continue to transfer it to the inferior asset holder to replace the flow of funds, so it can minimize the amount of assets held by the superior. The accounts payable between the asset issuer and the asset issuer has not been paid, which will affect the normal operation of the lower-level asset holder.

For example, the above-mentioned asset issuer is the core enterprise, the first-tier asset holder of the above-mentioned multi-level asset holder is the first-tier supplier with debt relationship with the core enterprise, and the above-mentioned second-tier asset holder is For example, a second-tier supplier that has a debt relationship with the above-mentioned first-tier supplier, assuming that the core enterprise needs to complete purchases from the first-tier supplier, the core enterprise can payment, create an asset object on the blockchain, and transfer the created asset object to the first-tier supplier to complete the purchase (that is, when the purchase price has not been paid, pay for the purchase in the form of the created digital asset payment).

Correspondingly, assuming that the first-tier supplier also needs to complete the purchase of goods from the second-tier supplier, the first-tier supplier can continue to use the second-tier account payable with the second-tier supplier. The digital assets are split, and the split digital assets continue to be transferred to the second-level supply to complete the procurement.

Therefore, for the lower-level suppliers at all levels, on the premise that the core enterprise has not yet paid the first accounts payable, the accounts payable with the upper-level asset holder can be regarded as digital assets and continue to be sent to them. Subordinate asset holders make transfers to replace the flow of funds to complete normal purchases without affecting their own normal operations.

Corresponding to the above method embodiments, the present specification also provides an embodiment of a blockchain-based asset transfer apparatus. The device can be applied to a distributed exchange built on the basis of blockchain; the distributed exchange includes a number of trading centers deployed in a distributed manner. The embodiments of the blockchain-based asset transfer apparatus of this specification can be applied to electronic devices. The apparatus embodiment may be implemented by software, or may be implemented by hardware or a combination of software and hardware. Taking software implementation as an example, a device in a logical sense is formed by reading the corresponding computer program instructions in the non-volatile memory into the memory for operation by the processor of the electronic device where the device is located. From the perspective of hardware, as shown in Figure 2, it is a hardware structure diagram of the electronic device where the blockchain-based asset transfer device of this specification is located, except for the processor, memory, network interface, and non-volatile hardware shown in Figure 2. In addition to the volatile memory, the electronic device in which the apparatus in the embodiment is located generally may also include other hardware according to the actual function of the electronic device, which will not be repeated here.

FIG. 3 is a block diagram of a block chain-based asset transfer apparatus shown in an exemplary embodiment of the present specification.

Please refer to FIG. 3 , the blockchain-based asset transfer device 30 can be applied to the aforementioned electronic device shown in FIG. 2 , and the electronic device can be applied to an asset transfer system built based on blockchain; The asset circulation system includes an asset issuer and a multi-level asset holder; wherein, the first-level asset holder among the multi-level asset holders holds the asset based on the asset issuer and the first-level asset holder. A first asset object created by a first account payable between asset holders; the blockchain-based asset transfer device 30 includes:

A receiving module 301, receiving a first transaction sent by the first-level asset holder; the first transaction includes the second-level assets in the first-level asset holder and the multi-level asset holder second accounts payable between holders;

Splitting module 302, in response to the first transaction, matching the first account payable with the second account payable, and when the amount of the second account payable is not greater than the first payable When the amount of the account, call the asset splitting logic declared in the smart contract published on the blockchain, split the first asset object, and split the first asset object from the first asset object. the second asset object matched by the second accounts payable;

The transfer module 303 transfers the split second asset object to the second-level asset holder for holding.

In this specification, the splitting module 302 further:

If the amount of the second account payable is greater than the amount of the first account payable, a notification message of asset transfer failure is returned to the first-level asset holder.

In this specification, the receiving module 301 further:

receiving a second transaction sent by the asset issuer; the second transaction includes the first account payable;

The device 30 also includes:

A creation module 304 (not shown in FIG. 3 ), in response to the second transaction, invokes asset creation logic declared in a smart contract published on the blockchain to create the first account payable based on the a first asset object, and transferring the created first asset object to the first-level asset holder for holding; and,

generating an asset creation record corresponding to the first asset object, and publishing the generated asset creation record to the blockchain for deposit; wherein, the asset creation record includes the first accounts payable and the first Correspondence between asset objects.

In this specification, the creation module 304 further:

Before creating the first asset object based on the first accounts payable, determine whether there is a certificate on the blockchain that is created by the asset issuer for the first-level asset holder, and stored by the asset The first account payable after the first-level asset holder confirms the right; if so, the first asset object is further created based on the first account payable.

In this specification, the creation module 304:

obtaining the amount of the first accounts payable;

converting the amount of the first accounts payable into an asset amount;

Create an asset object equal to the amount of the first asset to obtain the first asset object.

In this specification, the splitting module 302 further:

Before splitting the first asset object, determine whether there is a certificate on the blockchain created by the first-level asset holder for the second-level asset holder, and stored by the The second accounts payable after the second-level asset holder confirms the rights; if so, further splitting the first asset object is performed.

In this specification, the splitting module 302:

obtaining the amount of the second accounts payable;

converting the amount of the second account payable into an asset amount;

Splitting an asset object equal to the asset amount from the first asset object to obtain the second asset object.

In this specification, the device 30 also includes:

The generating module 305 (not shown in FIG. 3 ) generates a second asset object corresponding to the second asset object after splitting the second asset object matching the second accounts payable from the first asset object. Asset creation record, and publish the generated asset creation record to the blockchain for deposit; wherein, the asset creation record includes the corresponding relationship between the second asset object and the second account payable;

After the split second asset object is transferred to the second-level asset holder for holding, an asset circulation record corresponding to the first asset object is generated, and the generated asset circulation record is released The asset transfer record includes the first asset object, the second asset object split from the first asset object, and the asset holding the second asset object. The correspondence between the holders of the second asset.

In this specification, the asset circulation system is a supply chain financial system; the supply chain financial system includes a core enterprise as an asset issuer, a multi-level supplier as an asset holder, and a financial institution; wherein, the The asset object is used to initiate a financing loan to the financial institution.

In this specification, the receiving module 301 further:

receiving a third transaction sent by any target supplier among the multi-tier suppliers; the third transaction includes a third asset object for initiating a financing loan to the financial institution;

The transfer module 303 further:

In response to the third transaction, the third asset object is transferred to the financial institution for holding, so that the financial institution is in the process of confirming the third account payable corresponding to the third asset object. Then, the asset amount of the third asset object is converted into a capital quota, and a loan is issued to the target supplier based on the converted capital quota.

In this specification, transferring an asset object to any one of the multi-level asset holders, or holding by the financial institution, includes:

The address information of the asset object is added to the account object corresponding to any one of the multi-level asset holders or the financial institution.

For details of the implementation process of the functions and functions of each module in the above-mentioned device, please refer to the implementation process of the corresponding steps in the above-mentioned method, which will not be repeated here.

For the apparatus embodiments, since they basically correspond to the method embodiments, reference may be made to the partial descriptions of the method embodiments for related parts. The device embodiments described above are only illustrative, wherein the modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical modules, that is, they may be located in One place, or it can be distributed over multiple network modules. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution in this specification. Those of ordinary skill in the art can understand and implement it without creative effort.

The systems, devices, modules or modules described in the above embodiments may be specifically implemented by computer chips or entities, or by products with certain functions. A typical implementing device is a computer, which may be in the form of a personal computer, laptop computer, cellular phone, camera phone, smart phone, personal digital assistant, media player, navigation device, email sending and receiving device, game control desktop, tablet, wearable device, or a combination of any of these devices.

Corresponding to the foregoing method embodiments, the present specification further provides an embodiment of an electronic device. The electronic device can be applied to an asset circulation system based on blockchain; the asset circulation system includes an asset issuer and a multi-level asset holder; wherein, the first-level asset in the multi-level asset holder The holder holds the first asset object created based on the first accounts payable between the asset issuer and the first-level asset holder; the electronic device includes: a processor and a machine for storing Memory that executes instructions; where the processor and the memory are usually interconnected by an internal bus. In other possible implementations, the device may also include an external interface to enable communication with other devices or components.

In this embodiment, the processor is caused to:

Receive a first transaction sent by the first-level asset holder; the first transaction includes a relationship between the first-level asset holder and a second-level asset holder in the multi-level asset holder the second accounts payable in between;

matching the first account payable with the second account payable in response to the first transaction, and when the amount of the second account payable is not greater than the amount of the first account payable , calling the asset splitting logic declared in the smart contract published on the blockchain, splitting the first asset object, and splitting the second asset object from the first asset object The second asset object of the account matching;

The split second asset object is transferred to the second-level asset holder for holding.

In this embodiment, the processor is caused to:

If the amount of the second account payable is greater than the amount of the first account payable, a notification message of asset transfer failure is returned to the first-level asset holder.

In this embodiment, the processor is caused to:

receiving a second transaction sent by the asset issuer; the second transaction includes the first account payable;

In response to the second transaction, the asset creation logic declared in the smart contract published on the blockchain is invoked, the first asset object is created based on the first accounts payable, and the created first asset object is created. An asset object is transferred to said first-level asset holder for holding; and,

generating an asset creation record corresponding to the first asset object, and publishing the generated asset creation record to the blockchain for deposit; wherein, the asset creation record includes the first accounts payable and the first Correspondence between asset objects.

In this embodiment, the processor is caused to:

Before creating the first asset object based on the first accounts payable, determine whether there is a certificate on the blockchain that is created by the asset issuer for the first-level asset holder, and stored by the asset The first account payable after the first-level asset holder confirms the right; if so, the first asset object is further created based on the first account payable.

In this embodiment, the processor is caused to:

obtaining the amount of the first accounts payable;

converting the amount of the first accounts payable into an asset amount;

Create an asset object equal to the amount of the first asset to obtain the first asset object.

In this embodiment, the processor is caused to:

Before splitting the first asset object, determine whether there is a certificate on the blockchain created by the first-level asset holder for the second-level asset holder, and stored by the The second accounts payable after the second-level asset holder confirms the rights; if so, further splitting the first asset object is performed.

In this embodiment, the processor is caused to:

obtaining the amount of the second accounts payable;

converting the amount of the second account payable into an asset amount;

Splitting an asset object equal to the asset amount from the first asset object to obtain the second asset object.

In this embodiment, the processor is caused to:

After the second asset object matching the second account payable is split from the first asset object, an asset creation record corresponding to the second asset object is generated, and the generated asset creation record is published Store the certificate in the blockchain; wherein, the asset creation record includes the corresponding relationship between the second asset object and the second account payable;

After the split second asset object is transferred to the second-level asset holder for holding, an asset circulation record corresponding to the first asset object is generated, and the generated asset circulation record is released The asset transfer record includes the first asset object, the second asset object split from the first asset object, and the asset holding the second asset object. The correspondence between the holders of the second asset.

In this embodiment, the asset circulation system is a supply chain financial system; the supply chain financial system includes a core enterprise as an asset issuer, a multi-level supplier as an asset holder, and a financial institution; The asset object is used to initiate a financing loan to the financial institution;

By reading and executing machine-executable instructions stored by the memory corresponding to control logic for blockchain-based asset transfers, the processor is caused to:

receiving a third transaction sent by any target supplier among the multi-tier suppliers; the third transaction includes a third asset object for initiating a financing loan to the financial institution;

In response to the third transaction, the third asset object is transferred to the financial institution for holding, so that the financial institution is in the process of confirming the third account payable corresponding to the third asset object. Then, the asset amount of the third asset object is converted into a capital quota, and a loan is issued to the target supplier based on the converted capital quota.

Other embodiments of this specification will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This specification is intended to cover any variations, uses or adaptations of this specification that follow the general principles of this specification and include common knowledge or conventional techniques in the art not disclosed in this specification . The specification and examples are to be regarded as exemplary only, with the true scope and spirit of the specification being indicated by the following claims.

It should be understood that this specification is not limited to the precise structures described above and illustrated in the accompanying drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of this specification is limited only by the appended claims.

The above descriptions are only preferred embodiments of this specification, and are not intended to limit this specification. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this specification shall be included in this specification. within the scope of protection.

Claims (21)

1. A blockchain-based asset transfer method, applied to an asset circulation system built on a blockchain; the asset circulation system includes an asset issuer and a multi-level asset holder; wherein, the multi-level asset holder The first-level asset holder in the party holds the first asset object created based on the first accounts payable between the asset issuer and the first-level asset holder; the method includes: Receive a first transaction sent by the first-level asset holder; the first transaction includes a relationship between the first-level asset holder and a second-level asset holder in the multi-level asset holder the second accounts payable in between; matching the first account payable with the second account payable in response to the first transaction, and when the amount of the second account payable is not greater than the amount of the first account payable , calling the asset splitting logic declared in the smart contract published on the blockchain, splitting the first asset object, and splitting the second asset object from the first asset object The second asset object of the account matching; The split second asset object is transferred to the second-level asset holder for holding. 2. The method of claim 1, further comprising: If the amount of the second account payable is greater than the amount of the first account payable, a notification message of asset transfer failure is returned to the first-level asset holder. 3. The method of claim 1, further comprising: receiving a second transaction sent by the asset issuer; the second transaction includes the first account payable; In response to the second transaction, the asset creation logic declared in the smart contract published on the blockchain is invoked, the first asset object is created based on the first accounts payable, and the created first asset object is created. An asset object is transferred to said first-level asset holder for holding; and, generating an asset creation record corresponding to the first asset object, and publishing the generated asset creation record to the blockchain for deposit; wherein, the asset creation record includes the first accounts payable and the first Correspondence between asset objects. 4. The method of claim 3, before creating the first asset object based on the first accounts payable, further comprising: Determine whether there is a certificate on the blockchain for the first account payable created by the asset issuer for the first-level asset holder and confirmed by the first-level asset holder If yes, further create the first asset object based on the first accounts payable. 5. The method of claim 1, creating the first asset object based on the first accounts payable, comprising: obtaining the amount of the first accounts payable; converting the amount of the first accounts payable into an asset amount; Create an asset object equal to the amount of the first asset to obtain the first asset object. 6. The method according to claim 1, before performing split processing on the first asset object, further comprising: Determine whether there is a certificate on the blockchain that is created by the first-level asset holder for the second-level asset holder and confirmed by the second-level asset holder. Second accounts payable; if yes, further splitting the first asset object. 7. The method according to claim 1, performing split processing on the first asset object, and splitting a second asset object matching the second accounts payable from the first asset object, comprising: : obtaining the amount of the second accounts payable; converting the amount of the second account payable into an asset amount; Splitting an asset object equal to the asset amount from the first asset object to obtain the second asset object. 8. The method of claim 1, further comprising: After the second asset object matching the second account payable is split from the first asset object, an asset creation record corresponding to the second asset object is generated, and the generated asset creation record is published Store the certificate in the blockchain; wherein, the asset creation record includes the corresponding relationship between the second asset object and the second account payable; After the split second asset object is transferred to the second-level asset holder for holding, an asset circulation record corresponding to the first asset object is generated, and the generated asset circulation record is released The asset transfer record includes the first asset object, the second asset object split from the first asset object, and the asset holding the second asset object. The correspondence between the holders of the second asset. 9. The method according to claim 1, wherein the asset circulation system is a supply chain financial system; the supply chain financial system includes a core enterprise as an asset issuer, a multi-level supplier as an asset holder, and a financial an institution; wherein the asset object is used to initiate a financing loan to the financial institution. 10. The method of claim 9, further comprising: receiving a third transaction sent by any target supplier among the multi-tier suppliers; the third transaction includes a third asset object for initiating a financing loan to the financial institution; In response to the third transaction, the third asset object is transferred to the financial institution for holding, so that the financial institution is in the process of confirming the third account payable corresponding to the third asset object. Then, the asset amount of the third asset object is converted into a capital quota, and a loan is issued to the target supplier based on the converted capital quota. 11. An asset transfer device based on blockchain, applied to an asset circulation system based on blockchain; the asset circulation system includes an asset issuer and a multi-level asset holder; wherein, the multi-level asset holder The first-level asset holder in the party holds the first asset object created based on the first accounts payable between the asset issuer and the first-level asset holder; the device includes: The receiving module receives the first transaction sent by the first-level asset holder; the first transaction includes the first-level asset holder and the second-level asset holder in the multi-level asset holder second accounts payable between parties; A splitting module, in response to the first transaction, matching the first account payable with the second account payable, and when the amount of the second account payable is not greater than the first account payable When the amount of the payment is received, the asset splitting logic declared in the smart contract published on the blockchain is invoked, the first asset object is split, and the first asset object is split with all the second asset object matching the second account payable; The transfer module transfers the split second asset object to the second-level asset holder for holding. 12. The apparatus of claim 11, the splitting module further: If the amount of the second account payable is greater than the amount of the first account payable, a notification message of asset transfer failure is returned to the first-level asset holder. 13. The apparatus of claim 11, the receiving module further: receiving a second transaction sent by the asset issuer; the second transaction includes the first account payable; The device also includes: The creation module, in response to the second transaction, invokes the asset creation logic declared in the smart contract published on the blockchain, creates the first asset object based on the first account payable, and sets the created the first asset object is transferred to the first-level asset holder for holding; and, generating an asset creation record corresponding to the first asset object, and publishing the generated asset creation record to the blockchain for deposit; wherein, the asset creation record includes the first accounts payable and the first Correspondence between asset objects. 14. The apparatus of claim 13, the creation module further: Before creating the first asset object based on the first accounts payable, determine whether there is a certificate on the blockchain that is created by the asset issuer for the first-level asset holder, and stored by the asset The first account payable after the first-level asset holder confirms the right; if so, the first asset object is further created based on the first account payable. 15. The apparatus of claim 11, the creation module: obtaining the amount of the first accounts payable; converting the amount of the first accounts payable into an asset amount; Create an asset object equal to the amount of the first asset to obtain the first asset object. 16. The apparatus of claim 11, the splitting module further: Before splitting the first asset object, determine whether there is a certificate on the blockchain created by the first-level asset holder for the second-level asset holder, and stored by the The second accounts payable after the second-level asset holder confirms the rights; if so, further splitting the first asset object is performed. 17. The apparatus of claim 11, the split module: obtaining the amount of the second accounts payable; converting the amount of the second account payable into an asset amount; Splitting an asset object equal to the asset amount from the first asset object to obtain the second asset object. 18. The apparatus of claim 11, further comprising: The generating module, after splitting the second asset object matching the second accounts payable from the first asset object, generates an asset creation record corresponding to the second asset object, and converts the generated asset The creation record is published to the blockchain for deposit; wherein, the asset creation record includes the corresponding relationship between the second asset object and the second account payable; After the split second asset object is transferred to the second-level asset holder for holding, an asset circulation record corresponding to the first asset object is generated, and the generated asset circulation record is released The asset transfer record includes the first asset object, the second asset object split from the first asset object, and the asset holding the second asset object. The correspondence between the holders of the second asset. 19. The device according to claim 11, wherein the asset circulation system is a supply chain financial system; the supply chain financial system includes a core enterprise as an asset issuer, a multi-level supplier as an asset holder, and a financial an institution; wherein the asset object is used to initiate a financing loan to the financial institution. 20. The apparatus of claim 19, the receiving module further: receiving a third transaction sent by any target supplier among the multi-tier suppliers; the third transaction includes a third asset object for initiating a financing loan to the financial institution; The transfer module further: In response to the third transaction, the third asset object is transferred to the financial institution for holding, so that the financial institution is in the process of confirming the third account payable corresponding to the third asset object. Then, the asset amount of the third asset object is converted into a capital quota, and a loan is issued to the target supplier based on the converted capital quota. 21. An electronic device, applied to an asset circulation system based on blockchain; the asset circulation system includes an asset issuer and a multi-level asset holder; wherein, the first among the multi-level asset holders is The first-level asset holder holds the first asset object created based on the first accounts payable between the asset issuer and the first-level asset holder; including: processor; memory for storing machine-executable instructions; wherein, by reading and executing machine-executable instructions stored in the memory corresponding to control logic for blockchain-based asset transfers, the processor is caused to: Receive a first transaction sent by the first-level asset holder; the first transaction includes a relationship between the first-level asset holder and a second-level asset holder in the multi-level asset holder the second accounts payable in between; matching the first account payable with the second account payable in response to the first transaction, and when the amount of the second account payable is not greater than the amount of the first account payable , calling the asset splitting logic declared in the smart contract published on the blockchain, splitting the first asset object, and splitting the second asset object from the first asset object The second asset object of the account matching; The split second asset object is transferred to the second-level asset holder for holding.