CN112215709A

CN112215709A - Block chain based bill extraction digital circulation method and device and electronic equipment

Info

Publication number: CN112215709A
Application number: CN202011150075.XA
Authority: CN
Inventors: 耿因志; 孙夕秋; 于瀛蛟; 刘敏
Original assignee: Sinochem Energy High Tech Co Ltd; Sinochem Energy Co Ltd
Current assignee: Sinochem Energy High Tech Co Ltd; Sinochem Energy Co Ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-01-12

Abstract

The embodiment of the application provides a bill-picking digitalized circulation method and device based on a block chain and electronic equipment. The method comprises the following steps: when receiving a bill raising circulation request, verifying relevant information of the bill raising circulation request based on a bill raising intelligent contract; if the verification is passed, the accreditation assets of the bill of lading corresponding to the bill of lading circulation request are circulated based on the accreditation intelligent contract; and issuing the bill of lading circulation success event message. In the scheme, the offline physical assets corresponding to the bill of lading are converted into the online digital assets for value transfer, so that the real-time value transfer of the bill of lading physical assets can be realized in a credible transparent environment based on multi-party cooperation, the risks of one-cargo two-selling and one-cargo two-merging and the like possibly existing in the actual transfer process of the bill of lading physical assets are effectively solved, the asset transaction process can be programmable based on a block chain intelligent contract, the credible transfer efficiency of asset transfer is greatly improved, the default cost is improved, and the legal risk is reduced.

Description

Block chain based bill extraction digital circulation method and device and electronic equipment

Technical Field

The application relates to the technical field of block chains, in particular to a bill-picking digital circulation method and device based on the block chains and electronic equipment.

Background

The bill of lading is a certificate issued to a shipper when a transportation department ships goods in an external trade. For a long time, after the bill of lading is signed out by a signer, the bill of lading usually reaches the hand of the bill of lading after tens of days of express circulation. At present, the bill of lading is mostly paper, and at the in-process of express delivery circulation, the bill of lading is lost, is stolen or takes place occasionally the condition that accident caused the disappearance, in case these circumstances appear, will influence the normal clear of freight trade.

Disclosure of Invention

The present application aims to solve at least one of the above technical drawbacks. The technical scheme adopted by the application is as follows:

in a first aspect, an embodiment of the present application provides a bill extraction digital streaming method based on a block chain, where the method includes:

when receiving a bill raising and issuing request of an asset issuer, verifying related information of the bill raising and issuing request based on a bill raising intelligent contract;

if the verification is passed, mapping the bill of lading corresponding to the bill of lading issuing request to be the evidence-passing asset based on the evidence-passing intelligent contract;

and issuing a bill of lading issue success event message.

Optionally, verifying the relevant information of the bill drawing issuance request based on the bill drawing intelligent contract includes:

verifying the data format and the data type of request data carried in the bill-drawing issuing request;

if the data format and the data type are verified, determining whether a bill drawing record corresponding to the bill drawing issuing request exists;

if the bill raising record exists, determining the bill raising state of the bill raising in the bill raising record;

and if the bill raising state is issued, determining that the relevant information of the bill raising and issuing request passes verification.

Optionally, mapping the bill of lading corresponding to the bill of lading issuance request to a certified asset based on the certified intelligent contract, including:

creating a first pass ID based on a bill number carried by a bill-issuing request;

determining whether the user address format of the bill of lading holder is correct;

if the user address of the bill drawing holding useful party is correct, acquiring the user address of the associated party of the first certification ID;

determining whether the user address format of the associated party is correct;

and if the user address of the associated party is incorrect, establishing an association relation between the user address of the bill holder and the first pass ID in the pass user mapping set.

Optionally, the bill of lading issuance request carries a bill of lading number, and the bill of lading number is a unique identifier generated by the bill of lading in the intelligent contract for bill of lading.

In a second aspect, an embodiment of the present application provides another block chain-based bill extraction digital streaming method, where the method includes:

when receiving a bill raising transfer request of an asset sender, verifying related information of the bill raising transfer request based on a bill raising intelligent contract;

if the verification is passed, the certified assets of the bill;

and issuing a bill of lading transfer success event message.

Optionally, transferring the certified asset of the bill of lading corresponding to the bill of lading transfer request from the asset sender to the asset receiver based on the certified intelligent contract, including:

determining whether the user address of the associated party of the second certification ID corresponding to the bill drawing transfer request is correct or not;

if the user address of the associated party of the second certification ID is correct, determining whether the user address of the associated party of the second certification ID is consistent with the user address of the asset sender;

and if the assets are consistent with the assets, modifying the association relationship between the user address of the asset receiver and the second certification ID into the association relationship between the user address of the asset receiver and the second certification ID.

In a third aspect, an embodiment of the present application provides another bill extraction digital streaming method based on a block chain, where the method includes:

when a delivery request of a delivery party for a delivery order is received, verifying relevant information of the delivery request based on an intelligent contract of the delivery order;

if the verification is passed, destroying the accreditation assets corresponding to the bill of lading from accreditation assets held by the delivery party based on the accreditation intelligent contract;

and issuing a goods picking success event message.

Optionally, destroying the certified assets corresponding to the bill of lading from certified assets held by the consignor based on the certified intelligent contract, including:

determining whether the user address of the associated party of the third certificate ID corresponding to the goods drawing request is correct or not;

if the user address of the third certificate ID is correct, whether the user address of the associated party of the third certificate ID is consistent with the user address of the goods-submitting party is determined;

and if so, modifying the user address associated with the third certificate ID in the certificate passing user mapping set into a null address.

In a fourth aspect, an embodiment of the present application provides another block chain-based bill extraction digital streaming method, where the method includes:

when receiving a bill raising circulation request, verifying relevant information of the bill raising circulation request based on a bill raising intelligent contract;

if the verification is passed, the accreditation assets of the bill of lading corresponding to the bill of lading circulation request are circulated based on the accreditation intelligent contract;

and issuing the bill of lading circulation success event message.

Optionally, the bill of lading circulation request includes any one of a bill of lading issuance request, a bill of lading transfer request and a bill of lading request;

if the bill of lading circulation request is a bill of lading issue request, the accredited assets of the bill of lading corresponding to the bill of lading circulation request are circulated based on the accredited intelligent contract, and the method comprises the following steps:

mapping the bill of lading corresponding to the bill of lading issuing request to be the certification-based asset based on the certification-based intelligent contract;

if the bill of lading circulation request is the bill of lading transfer request, the evidence-passing assets of the bill of lading corresponding to the bill of lading circulation request are circulated based on the evidence-passing intelligent contract, and the method comprises the following steps:

transferring the certified assets of the bill;

if the bill of lading circulation request is a request for lading, the evidence-passing assets of the bill of lading corresponding to the bill of lading circulation request are circulated based on the evidence-passing intelligent contract, and the method comprises the following steps:

and destroying the evidence-passing assets of the bill of lading corresponding to the delivery request from the evidence-passing assets held by the delivery party based on the evidence-passing intelligent contract.

In a fifth aspect, an embodiment of the present application provides a bill of lading digitalized transfer device based on a blockchain, where the device includes:

the verification module is used for verifying the relevant information of the bill-drawing issuing request based on the bill-drawing intelligent contract when the bill-drawing issuing request of the asset issuer is received;

the certification passing module is used for mapping the bill of lading corresponding to the bill of lading issuing request to certification passing assets based on the certification passing intelligent contract when the certification passes;

and the event issuing module is used for issuing the event message of successful bill of lading issue.

Optionally, when the verification module verifies the relevant information of the bill-drawing issuance request based on the intelligent contract for bill drawing, the verification module is specifically configured to:

Optionally, the certification module is specifically configured to, when mapping the bill of lading corresponding to the bill of lading issuance request to the certification resources based on the certification intelligent contract:

determining whether the user address format of the associated party is correct;

In a sixth aspect, an embodiment of the present application provides another bill of lading digital stream device based on a block chain, where the device includes:

the verification module is used for verifying the relevant information of the bill raising transfer request based on the bill raising intelligent contract when the bill raising transfer request of the asset sender is received;

the asset transfer module is used for transferring the certified asset of the bill drawing corresponding to the bill drawing transfer request from the asset sender to the asset receiver based on the certified intelligent contract when the verification is passed;

and the event issuing module is used for issuing the event message of successful bill raising transfer.

Optionally, when the certified asset of the bill of lading corresponding to the bill of lading transfer request is transferred from the asset sender to the asset receiver based on the certified intelligent contract, the asset transfer module is specifically configured to:

In a seventh aspect, an embodiment of the present application provides another bill of lading digital stream device based on a block chain, where the device includes:

the verification module is used for verifying the related information of the delivery request based on the delivery intelligent contract when the delivery request of the delivery party for the delivery order is received;

the goods delivery module is used for destroying the certified assets corresponding to the bill of lading from certified assets held by the goods delivery party based on the certified intelligent contract when the certification is passed;

and the event issuing module is used for issuing the goods pickup success event message.

Optionally, when the evidence-based intelligent contract destroys the evidence-based asset corresponding to the bill of lading from the evidence-based asset held by the lading party, the lading module is specifically configured to:

In an eighth aspect, an embodiment of the present application provides another bill of lading digital stream device based on a blockchain, where the device includes:

the verification module is used for verifying the relevant information of the bill raising circulation request based on the bill raising intelligent contract when the bill raising circulation request is received;

the asset transfer module is used for transferring the certified assets of the bill of lading corresponding to the bill of lading transfer request based on the certified intelligent contract when the verification is passed;

and the event issuing module is used for issuing the event message of successful bill raising circulation.

if the bill of lading circulation request is a bill of lading issue request, the asset circulation module is specifically used for:

if the bill extraction transfer request is the bill extraction transfer request, the asset transfer module is specifically used for:

transferring the certified assets of the bill;

if the bill of lading circulation request is a goods delivery request, the asset circulation module is specifically used for:

In a ninth aspect, an embodiment of the present application provides an electronic device, including: a processor and a memory;

a memory for storing operating instructions;

a processor, configured to execute the block chain based bill of lading digitalized circulation method as shown in any implementation manner of the first aspect to the fourth aspect of the present application by calling an operation instruction.

In a tenth aspect, an embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the block chain based bill of lading digitalized streaming method shown in any implementation manner of the first aspect to the fourth aspect of the present application.

The technical scheme provided by the embodiment of the application has the following beneficial effects:

according to the scheme provided by the embodiment of the application, when the bill raising circulation request is received, the relevant information of the bill raising circulation request is verified based on the bill raising intelligent contract; if the verification is passed, the accreditation assets of the bill of lading corresponding to the bill of lading circulation request are circulated based on the accreditation intelligent contract; and issuing the bill of lading circulation success event message. In the scheme, the offline physical assets corresponding to the bill of lading are converted into the online digital assets for value transfer, so that the real-time value transfer of the bill of lading physical assets can be realized in a credible transparent environment based on multi-party cooperation, the risks of one-cargo two-selling and one-cargo two-merging and the like possibly existing in the actual transfer process of the bill of lading physical assets are effectively solved, the asset transaction process can be programmable based on a block chain intelligent contract, the credible transfer efficiency of asset transfer is greatly improved, the default cost is improved, and the legal risk is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments of the present application will be briefly described below.

Fig. 1 is a schematic flowchart of a block chain-based bill picking up digital streaming method according to an embodiment of the present disclosure;

fig. 2 is a flowchart of a method for generating a blockchain account according to an embodiment of the present disclosure;

fig. 3 is a schematic flow chart of a bill of lading issuing method according to an embodiment of the present application;

fig. 4 is a schematic flowchart of another method for extracting a digital stream based on a blockchain according to an embodiment of the present disclosure;

fig. 5 is a schematic flowchart of a bill of lading transfer method according to an embodiment of the present application;

fig. 6 is a schematic flowchart of another method for digitally streaming a bill of lading based on a blockchain according to an embodiment of the present application;

fig. 7 is a schematic flowchart of a bill of lading method according to an embodiment of the present application;

fig. 8 is a schematic flowchart of another method for digitally streaming a bill of lading based on a blockchain according to an embodiment of the present application;

fig. 9 is a schematic flowchart of a bill of lading circulation method according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of an order-picking digital stream device of a block chain according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of another bill-extracting digital stream-converting apparatus for a block chain according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a bill-extracting digital stream-converting apparatus for a block chain according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of a bill-extracting digital stream-converting apparatus for a block chain according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present invention.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

At present, the bill of lading is held by a shipper after being issued, and once the bill of lading is lost and damaged, the normal operation of the freight trade can be influenced.

During the use of the bill of lading, the bill of lading holder may make the transfer of the bill of lading or carry out the delivery of the bill of lading. In case of bill extraction dispute during bill extraction, the responsibility definition and the claim management among the interest-interested parties are also very time-consuming and labor-and material-intensive.

The blockchain is a novel application mode of computer technologies such as distributed data storage, point-to-point transmission, a consensus mechanism and an encryption algorithm. The Blockchain (Blockchain) is an important concept of the bitcoin, which is essentially a decentralized database, and is used as the underlying technology of the bitcoin, and is a series of data blocks which are generated by using a cryptographic method to be related, wherein each data block contains information of a batch of bitcoin network transactions, and the information is used for verifying the validity (anti-counterfeiting) of the information and generating the next block.

In a federation chain, each node usually has a corresponding entity organization, and can join and leave the network only after authorization. Organizations form interest-related alliances that collectively maintain healthy operation of blockchains. The method has the advantages of strong controllability, partial decentralization, data disclosure according to needs, high transaction speed and the like,

if the block chain technology is used, the bill lifting transmission speed is high, and meanwhile, the intelligent electronic bill lifting with the energy given by the block chain retains all legal attributes of the paper bill lifting, and the advantages of the decentralized platform in the aspects of safety, cost reduction, quick arrival and the like are fully exerted.

In essence, the block chain is a shared database, and the data or information stored in the database has the characteristics of ' unforgeability ', ' full-course trace ', traceability ', ' public transparency ', ' collective maintenance ', and the like. Based on the characteristics, the block chain technology lays a solid 'trust' foundation, creates a reliable 'cooperation' mechanism and has wide application prospect.

The bill-picking digital circulation method and device based on the block chain and the electronic equipment aim to solve at least one of the above technical problems in the prior art.

The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.

Fig. 1 shows a schematic flowchart of a block chain based bill picking up digital streaming method provided in an embodiment of the present application, and as shown in fig. 1, the method mainly includes:

step S110: when receiving a bill raising and issuing request of an asset issuer, verifying related information of the bill raising and issuing request based on a bill raising intelligent contract;

step S120: if the verification is passed, mapping the bill of lading corresponding to the bill of lading issuing request to be the evidence-passing asset based on the evidence-passing intelligent contract;

step S130: and issuing a bill of lading issue success event message.

The embodiment of the application provides a bill of lading management platform based on a federation chain, and multiple participants are connected together in a trusted mode through federation chain nodes to achieve valuable data flow.

Each transaction main body in the bill picking circulation process can register a blockchain account in the alliance chain, the blockchain account realizes the unique identification of the user identity in the alliance chain, and the blockchain account can be used for receiving assets and sending the assets. The transaction principal may initiate a transaction on the federation chain using the blockchain account. The transaction principal holds a blockchain account private key representing its unique identity in the federation chain.

Fig. 2 is a flowchart illustrating a method for generating a blockchain account according to an embodiment of the present disclosure.

As shown in fig. 2, the application requests creation of a blockchain account, and the request to create a blockchain account is forwarded by the blockchain SDK. After a blockchain account is generated, the account is unique throughout the federation chain.

After the blockchain account is generated, the blockchain SDK forwards returned request response content, the response content comprises a public key and a private key of the blockchain account, and a requester can select to store own account information to prevent loss.

And the block chain SDK initiates a user public key information registration request to the intelligent contract, calls the user intelligent contract and stores the public key information in the intelligent contract.

And after receiving the account public key registration information, the user intelligent contract executes the storage logic in the user intelligent contract and stores the account public key information for verification.

And the application terminal sends a user role relationship setting request, wherein the user role relationship setting request comprises the corresponding relationship between the user and the role.

After receiving a user role relationship setting request sent by an application terminal, the block chain SDK carries out private key signature on request data of the user role relationship setting request of a user, and ensures that the information is not tampered in the transmission process. The signed data will be sent as parameters to the user intelligent contract.

After receiving the request data of the user role relationship setting request, the user intelligent contract inquires and uses the public key of the account to decrypt the data, and stores the decrypted information, and the user intelligent contract can store the corresponding relationship between the user and the role.

Based on the blockchain intelligent contract, the related business operation of the digital bill of lading can be mapped into the blockchain intelligent contract, and the blockchain intelligent contract is deployed in the alliance chain, and is triggered according to the condition and automatically executed according to the rule. Specifically, a bill-drawing intelligent contract, a certified intelligent contract, a user intelligent contract, a role intelligent contract, and the like can be deployed.

The bill of lading intelligent contract can contain a bill of lading set and each flow event of the bill of lading. Specifically, the bill of lading set includes bill of lading metadata and bill of lading status, each of which is mainly a bill number. Each flow event of the bill of lading comprises a bill of lading creation, issuance, issue, circulation and delivery flow event structure and event information. The event structure comprises metadata such as a bill number, a bill status, a certification ID, an operator and a receiver, wherein the certification ID, the operator and the receiver are index fields, and an external program can capture message contents by calling a filter on a block generated by an intelligent contract.

The intelligent contract comprises two components of a user certification counter and a certification user mapping set, wherein the user certification counter is used for marking the total number of the specified user owned certifications. The pass-certificate user mapping set comprises a user address corresponding to the pass-certificate ID, and the address of the owner of the pass-certificate can be acquired according to the pass-certificate ID. The certification passing ID is obtained by carrying out hash conversion on the bill of lading number; the user address is a public key address of the user in the blockchain system.

When the logic of each intelligent contract is called, the cross verification of roles, authorities and related states is carried out, so that illegal operation or malicious requests are avoided, and the integrity and the legality of transactions are ensured.

In the embodiment of the application, an asset issuer can initiate a bill raising issuance request, the bill raising issuance request can carry bill raising metadata such as bill raising numbers, and the bill raising numbers are unique in a bill raising contract and cannot be added repeatedly.

The block chain SDK can receive the bill-raising issue request, and initiate the corresponding logic call of the bill-raising intelligent contract, and the request data of the bill-raising issue request is carried to the bill-raising intelligent contract. After receiving the request data, the bill-drawing intelligent contract can verify the relevant information of the bill-drawing issuing request. Specifically, it may be verified whether the request data is valid in the bill-of-lading intelligent contract, and if so, the role contract may be invoked to verify the authority of the asset issuer.

If the relevant information of the bill-drawing issuing request passes the verification, the bill-drawing corresponding to the bill-drawing issuing request can be mapped into the certified asset based on the certified intelligent contract, so that the logic call of bill-drawing issuing in the certified intelligent contract is completed.

Subsequently, a bill issuance success event message can be issued, which includes a bill number and bill metadata. So far, the bill of lading issue is successful.

According to the digital circulation method for the bill of lading provided by the embodiment of the application, when the bill of lading is received and issued, the relevant information of the bill of lading is verified, the bill of lading is mapped into the accredited assets according to the accredited intelligent contract, and the accredited assets are stored in the block chain. Because the bill is converted into the digital bill after being subjected to the certification, the method has higher reliability, can effectively avoid the influence on the freight trade caused by the situations of bill drop loss, damage and the like, and is favorable for the normal operation of the freight trade.

In an optional mode of the embodiment of the present application, verifying the relevant information of the bill of lading issue request based on the intelligent contract for the bill of lading includes:

In the embodiment of the application, the bill-drawing intelligent contract can verify the data format and the data type of the request data carried in the bill-drawing issuing request after receiving the bill-drawing issuing request. In the event that the validation request data is valid, a role intelligence contract may also be invoked to validate the publishing rights of the asset issuer. If the authorization is verified, whether the bill of lading record already exists can be checked according to the bill of lading number in the bill of lading issuance request. If a bill of lading record according to the bill of lading number in the bill of lading issuance request exists, the checking is continued to check whether the state in the bill of lading record is issued. If the state in the bill of lading record is issued, the verification of the relevant information of the bill of lading issuance request can be considered to be completed, and the state in the bill of lading record can be updated to be issued after the bill of lading issuance is successful.

In an optional mode of the embodiment of the application, mapping a bill of lading corresponding to the bill of lading issue request to a certified asset based on a certified intelligent contract includes:

determining whether the user address format of the associated party is correct;

In the embodiment of the application, if the verification of the relevant information of the bill of lading issuance request is passed, the bill of lading issuance logic in the intelligent contract for certification can be called to transmit the first certification ID and the user address of the bill of lading holder. In practical use, the first pass ID may be obtained by performing hash conversion on the bill number, that is, performing hash conversion on the bill number carried in the bill issuance request to obtain the first pass ID.

The bill-drawing issuing logic in the general-purpose intelligent contract comprises the following steps:

firstly, whether the user address format of the bill-drawing holder is correct is checked, and if the user address format of the bill-drawing holder is correct, the user address of the first evidence-passing ID correlation party in the evidence-passing user mapping is obtained. Checking whether the user address of the associated party is correct, if the user address of the associated party is incorrect, then it can be considered that the user certification counter of the bill bearer is increased by one, and a mapping of the first certification ID and the user address of the bill bearer is created in the certification user mapping.

In an optional mode of the embodiment of the application, the bill of lading issuance request carries a bill of lading number, and the bill of lading number is a unique identifier generated by the bill of lading in the intelligent contract of the bill of lading.

Fig. 3 is a flowchart illustrating a method for issuing a bill of lading provided by an embodiment of the present application, where an asset issuer may send a request for issuing a bill of lading, and a blockchain SDK initiates a corresponding logic call of an intelligent contract for the bill of lading after receiving the request for issuing the bill of lading. The intelligent contract for bill drawing can verify the request parameters of the bill drawing issue request after receiving the request data, and can call the role intelligent contract to verify the issue authority of the asset issuer under the condition that the verification request parameters are effective. If the authorization is verified, whether the bill of lading record already exists can be checked according to the bill of lading number in the bill of lading issuance request. If a bill of lading record according to the bill of lading number in the bill of lading issuance request exists, the checking is continued to check whether the state in the bill of lading record is issued. If the state in the bill-drawing record is issued, the corresponding bill-drawing record state in the intelligent contract is updated to be issued, and corresponding logic call of the certified intelligent contract is initiated. The bill of lading issue logic comprises the following steps: firstly, whether the user address format of the bill-drawing holder is correct is verified, and if the user address format of the bill-drawing holder is correct, the user address of the first pass ID correlation party in the pass user mapping is obtained. Checking whether the user address of the associated party is correct, if the user address of the associated party is incorrect, adding one to the user certification counter of the bill holder, and creating a mapping of the first certification ID and the user address of the bill holder in the certification user mapping. And issuing the bill-drawing issue success event message, so far, the bill-drawing issue is successful.

Fig. 4 is a schematic flowchart illustrating another method for extracting a digital stream based on a blockchain according to an embodiment of the present application, where as shown in fig. 4, the method mainly includes:

step S210: when receiving a bill raising transfer request of an asset sender, verifying related information of the bill raising transfer request based on a bill raising intelligent contract;

step S220: if the verification is passed, the certified assets of the bill;

step S230: and issuing a bill of lading transfer success event message.

In the embodiment of the application, the asset sender can initiate the bill raising transfer request, and the bill raising transfer request can carry data such as a bill raising number and an asset receiver.

The block chain SDK can receive the bill raising transfer request, and initiate the corresponding logic call of the bill raising intelligent contract, and the request data of the bill raising transfer request is carried to the bill raising intelligent contract. After receiving the request data, the bill-drawing intelligent contract can verify the relevant information of the bill-drawing transfer request.

Specifically, the bill drawing intelligent contract verifies the data format and the data type of the request data of the bill drawing transfer request, so that whether the request data is valid or not is verified.

In the case of the validation request data being valid, it can be checked whether a bill of lading record already exists according to the bill of lading number in the bill of lading transfer request. If a bill mention record exists according to the bill mention number in the bill mention transfer request, the verification of the relevant information of the bill mention transfer request can be considered to be completed.

If the relevant information verification of the bill drawing transfer request is passed, the call of the logic of bill drawing transfer in the certified intelligent contract can be initiated, and the certified asset of the bill drawing corresponding to the bill drawing transfer request is transferred from the asset sender to the asset receiver based on the certified intelligent contract.

Subsequently, a bill pull transfer success event message may be issued, including a bill pull number, bill pull metadata, and an asset recipient address. So far, the bill extraction transfer is successful.

According to the digital circulation method for the bill drawing, when the bill drawing transfer request is received, the relevant information of the bill drawing transfer request is verified, and the certified asset is transferred from the asset sender to the asset receiver according to the certified intelligent contract. The digital bill of lading is traded on the block chain, so that the whole transaction process of the digital bill of lading is transparent, the transaction behavior cannot be repudiated, the transaction records are tamper-proof, the transaction process can be traced, the transaction consistency and the asset safety are fully guaranteed, all legal attributes of the paper bill of lading can be reserved, and the advantages of a decentralized platform in the aspects of transaction safety, cost reduction, quick arrival and the like can be fully exerted.

In an optional mode of the embodiment of the present application, the method for transferring the certified asset of the bill of lading corresponding to the bill of lading transfer request from the asset sender to the asset receiver based on the certified intelligent contract includes:

In the embodiment of the application, if the verification of the relevant information of the bill drawing transfer request is passed, the bill drawing transfer logic in the intelligent contract for passing certification can be called, and the second certification ID and the user address of the asset receiver are transmitted.

The bill drawing transfer logic in the intelligent contract for the general evidence comprises the following steps:

firstly, the user address of the associated party of the second certification ID in the certification user mapping is obtained, and whether the user address of the associated party is correct or not is checked. And if the user address of the associated party is correct, comparing the user address of the associated party with the user address of the asset sender to determine whether the user addresses are consistent. And if the user address of the correlation party of the second certification ID is consistent with the user address of the asset sender, subtracting one from the certification counter of the asset sender, and adding one to the certification counter of the asset receiver. And modifying the user address associated with the second certification ID in the current certification user mapping from the user address of the asset sender to the user address of the asset receiver, and completing the calling of the bill drawing transfer logic.

Fig. 5 is a flowchart illustrating a bill raising transfer method provided in an embodiment of the present application, where an asset sender may send a bill raising transfer request, and a block chain SDK receives the bill raising transfer request, initiates a corresponding logic call of an intelligent contract for raising a bill, and carries request data of the bill raising transfer request to the intelligent contract for raising a bill. The bill raising intelligent contract can verify the request parameters of the bill raising transfer request after receiving the request data, and can check whether the bill raising record exists according to the bill raising number in the bill raising transfer request under the condition of verifying the request parameters to be effective. And if the bill drawing record according to the bill drawing number in the bill drawing transfer request exists, initiating corresponding logic call of the accreditation intelligent contract. The bill of lading transfer logic comprises the following steps: firstly, the user address of the associated party of the second certification ID in the certification user mapping is obtained, and whether the user address of the associated party is correct or not is checked. And if the user address of the associated party is correct, comparing the user address of the associated party with the user address of the asset sender to determine whether the user addresses are consistent. If the user address of the party associated with the second certification ID is consistent with the user address of the asset sender, the certification clearance counter of the asset sender is decremented by one and the certification clearance counter of the asset receiver is incremented by one. And modifying the user address associated with the second certification ID in the current certification user mapping from the user address of the asset sender to the user address of the asset receiver, and completing the calling of the bill drawing transfer logic. And issuing the bill raising transfer success event message, so far, the bill raising transfer is successful.

In actual use, in order to further ensure the safety of bill raising transfer, a bill raising transfer condition may be preset, and when a bill raising transfer request is received, it is determined whether the received bill raising transfer request meets the bill raising transfer condition, and if so, the bill raising transfer request may be processed. If not, the current bill of lading transfer request is considered to be possibly at a security risk.

As an example, a threshold of the number of warrant transfers may be set based on the number of warrant transfers in the bill of lading transfer history of the asset sender, and the bill of lading transfer condition may be that the current number of warrant transfers corresponding to the bill of lading transfer request does not exceed the threshold of the number of warrant transfers. For example, the number of forensic transfers threshold may be a times the maximum number of forensic transfers in the bill of lading transfer history, where a > 1.

As another example, model training may be performed based on bill of lading information (e.g., cargo information, freight origin, freight destination, freight departure date, etc.) in the bill of lading transfer history record, resulting in a bill of lading transfer prediction model. And inputting the bill drawing information of the bill to be transferred of the asset sender into the bill drawing transfer prediction model to obtain the predicted transfer probability of the bill to be transferred. The bill drawing transfer condition can be a preset probability, and when the asset sender carries out bill drawing transfer, if the predicted transfer probability of the bill drawing to be transferred does not meet the preset probability, the bill drawing transfer can be considered to have a safety risk.

In the embodiment of the application, when the bill drawing transfer request does not meet the bill drawing transfer condition, prompt information can be sent to the asset sender to inform the asset sender to confirm whether the bill drawing transfer is safe or not. The asset sender may submit confirmation information upon confirming that the bill of lading transfer is secure. If the confirmation information submitted by the asset sender is not received within the preset time or the feedback information of potential safety hazard existing in the bill drawing transfer request submitted by the asset sender is received, the bill drawing transfer request can be considered to have the potential safety hazard, and the processing of the bill drawing transfer request is terminated.

Fig. 6 is a flowchart illustrating a further method for extracting a digital stream based on a block chain according to an embodiment of the present application, where as shown in fig. 6, the method mainly includes:

step S310: when a delivery request of a delivery party for a delivery order is received, verifying relevant information of the delivery request based on an intelligent contract of the delivery order;

step S320: if the verification is passed, destroying the accreditation assets corresponding to the bill of lading from accreditation assets held by the delivery party based on the accreditation intelligent contract;

step S330: and issuing a goods picking success event message.

In the embodiment of the application, the goods picking party can initiate a goods picking request, and the goods picking request can carry data such as a bill of lading number.

After receiving the delivery request, the block chain SDK initiates corresponding logic call of the delivery intelligent contract, and carries request data of the delivery request to the delivery intelligent contract. After receiving the request data, the bill-picking intelligent contract can verify the relevant information of the goods picking request.

Specifically, the bill drawing intelligent contract verifies the data format and the data type of the request data of the goods drawing request, so that whether the request data is valid or not is verified.

In the case of a valid verification request data, it can be checked whether a bill of lading record already exists according to the bill of lading number in the bill of lading request. If a bill of lading record exists according to the bill of lading number in the bill of lading request, the checking is continued to check whether the state in the bill of lading record is issued. If the status in the bill of lading record is issued, the verification of the relevant information of the delivery request is considered to be completed, and after the delivery is successful, the corresponding bill of lading record status in the intelligent contract for the bill of lading is updated to be delivered.

If the relevant information of the delivery request is verified, the calling of the logic of the delivery bill and the delivery in the intelligent contract for the certification can be initiated, and the certified assets corresponding to the delivery bill are destroyed from the certified assets held by the delivery party based on the intelligent contract for the certification.

Subsequently, a pick-up success event message may be issued, the pick-up success event message including a pick-up number, pick-up unit data. And the bill and the goods are successfully picked up.

According to the bill of lading digital circulation method provided by the embodiment of the application, when the bill of lading digital circulation method receives a delivery request, the relevant information of the delivery request is verified, and the accredited assets are destroyed from accredited assets held by a delivery party according to an accredited intelligent contract. Due to the fact that the goods picking transaction of the digital bill is carried out on the block chain, the whole process of the goods picking transaction of the digital bill is transparent, the transaction behavior cannot be repudiated, the transaction records are tamper-proof, the transaction process can be traced, the transaction consistency and the asset safety are fully guaranteed, all legal attributes of the paper bill can be reserved, and the advantages of the decentralized platform in the aspects of transaction safety, cost reduction, rapid arrival and the like can be fully exerted.

In the embodiment of the application, if the verification of the relevant information of the delivery request is passed, the delivery bill delivery logic in the general-purpose intelligent contract can be called to transmit the third pass ID.

firstly, the user address of the associated party of the third certificate ID in the certificate passing user mapping is obtained, and whether the user address of the associated party is correct or not is checked. If the user address of the associated party is correct, the user address of the associated party is compared with the user address of the goods-submitting party to determine whether the user addresses are consistent. And if the user address of the party associated with the third certificate ID is consistent with the user address of the goods-submitting party, the certificate-receiving counter of the goods-submitting party is decreased by one. And modifying the user address associated with the third pass ID in the current pass certificate user mapping from the user address of the delivery party to an empty address, and completing the calling of the bill delivery and delivery logic.

Fig. 7 is a flowchart illustrating a bill of lading method according to an embodiment of the present application, where a lader may send a lading request, and a block chain SDK receives the lading request, initiates a corresponding logic call of a bill of lading intelligent contract, and carries request data of the bill of lading request to the bill of lading intelligent contract. The bill-picking intelligent contract can verify the request parameters of the goods picking request after receiving the request data, and can check whether the bill-picking record exists according to the bill-picking number in the goods picking request under the condition that the request parameters are verified to be effective. If a bill of lading record exists according to the bill of lading number in the bill of lading request, the checking is continued to check whether the state in the bill of lading record is issued. If the status in the bill of lading record is issued, initiating corresponding logic call of the evidence-based intelligent contract, and updating the corresponding bill of lading record status in the bill of lading intelligent contract to be delivered after the delivery is successful. The bill and goods picking logic comprises the following steps: firstly, the user address of the associated party of the second certification ID in the certification user mapping is obtained, and whether the user address of the associated party is correct or not is checked. If the user address of the associated party is correct, the user address of the associated party is compared with the user address of the goods-submitting party to determine whether the user addresses are consistent. And if the user address of the party associated with the third certificate ID is consistent with the user address of the goods-submitting party, the certificate-receiving counter of the goods-submitting party is decreased by one. And modifying the user address associated with the second certification ID in the current certification user mapping from the user address of the delivery party to an empty address, and completing the calling of the bill delivery and delivery logic. And issuing a goods picking success event message, so far, the bill picking and the goods picking are successful.

Fig. 8 is a flowchart illustrating a further method for extracting a digital stream based on a block chain according to an embodiment of the present application, where as shown in fig. 8, the method mainly includes:

step S410: when receiving a bill raising circulation request, verifying relevant information of the bill raising circulation request based on a bill raising intelligent contract;

step S420: if the verification is passed, the accreditation assets of the bill of lading corresponding to the bill of lading circulation request are circulated based on the accreditation intelligent contract;

step S430: and issuing the bill of lading circulation success event message.

In the embodiment of the application, a transaction party in bill raising transaction flow can initiate a bill raising flow request, and the bill raising flow request can carry data such as bill raising numbers and flow related account addresses.

And after receiving the bill raising and circulation request, the block chain SDK initiates corresponding logic call of the bill raising intelligent contract and carries request data of the bill raising and circulation request to the bill raising intelligent contract. After receiving the request data, the bill-drawing intelligent contract can verify the relevant information of the bill-drawing circulation request.

Specifically, the bill raising intelligent contract verifies the validity of the request data of the bill raising circulation request. And the bill picking state in the bill picking record can be checked, and whether the current bill picking state can transfer the bill picking is determined.

If the relevant information of the bill drawing circulation request is verified, the call of bill drawing circulation logic in the accreditation intelligent contract can be initiated, and accreditation assets of the bill drawing corresponding to the bill drawing circulation request are circulated based on the accreditation intelligent contract.

Subsequently, a bill of lading flow success event message can be passed, which can contain bill of lading number, bill of lading metadata. And at this point, the bill of lading circulation is successful.

According to the bill of lading digital circulation method provided by the embodiment of the application, when the bill of lading circulation request is received, the relevant information of the bill of lading circulation request is verified, and the accredited assets of the bill of lading corresponding to the bill of lading circulation request are circulated according to the accredited intelligent contract. The receipt is converted into the digital receipt for circulation after being subjected to the certification, so that the method has higher reliability, the freight trade can be effectively prevented from being influenced by the conditions of the loss, the damage and the like of the receipt, the whole circulation process of the digital receipt is transparent, the transaction behavior can not be repudiated, the transaction record is prevented from being tampered, the transaction process can be traced, the transaction consistency and the asset safety can be fully ensured, all legal attributes of the paper receipt can be reserved, and the advantages of a decentralized platform in the aspects of transaction safety, cost reduction, quick arrival and the like can be fully exerted.

In an optional mode of the embodiment of the application, the bill of lading circulation request includes any one of a bill of lading issue request, a bill of lading transfer request and a bill of lading request;

if the bill of lading circulation request is a bill of lading issue request, the accredited assets which are corresponding to the bill of lading and are subjected to bill of lading circulation request are circulated based on the accredited intelligent contract, and the method comprises the following steps:

if the bill of lading circulation request is the bill of lading transfer request, the accredited assets of the bill of lading corresponding to the bill of lading circulation request are circulated based on the accredited intelligent contract, and the method comprises the following steps:

transferring the certified assets of the bill;

if the bill of lading circulation request is a request for lading, the evidence-based assets which are subjected to bill of lading circulation and correspond to the bill of lading are circulated based on the evidence-based intelligent contract, and the method comprises the following steps:

In this embodiment, the bill of lading circulation request may include a bill of lading issuance request, a bill of lading transfer request, and a bill of lading request.

Specifically, the bill of lading corresponding to the bill of lading issuance request can be mapped to the certified asset based on the certified intelligent contract. The certified asset of the bill of lading corresponding to the bill transfer request can be transferred from the asset sender to the asset receiver based on the certified intelligent contract. The evidence-based assets corresponding to the bill of lading request can be destroyed from the evidence-based assets held by the lading party based on the evidence-based intelligent contract.

Fig. 9 is a flowchart illustrating a bill of lading circulation method according to an embodiment of the present application, where a transaction party in a bill of lading transaction circulation may initiate a bill of lading circulation request, and the bill of lading circulation request may include a bill of lading issuance request, a bill of lading transfer request, and a bill of lading request. And after receiving the bill picking and circulation request, the block chain SDK initiates corresponding logic call of the intelligent contract and carries request data to the intelligent contract. And after receiving the request data of the bill-drawing circulation request, the intelligent contract analyzes and verifies the request parameters, and calls the role intelligent contract to verify the authority of the transaction party under the condition that the request data in the bill-drawing intelligent contract is verified to be effective. If the verification authority passes, calling the bill-drawing intelligent contract and the evidence-passing intelligent contract to perform corresponding processing; and triggering corresponding events in the process of calling the bill-drawing intelligent contract and the evidence-passing intelligent contract for operation. And subscribing the event in the intelligent contract by the block chain SDK, and executing corresponding service logic by an external program according to the received event message after the corresponding event is triggered by the intelligent contract.

Based on the same principle as the method shown in fig. 1, fig. 10 shows a schematic structural diagram of a block chain based bill picking up digital streaming apparatus provided by an embodiment of the present application, and as shown in fig. 10, the block chain based bill picking up digital streaming apparatus 50 may include:

the verification module 510 is configured to verify, based on the intelligent contract for the bill drawing, information related to the bill drawing issuance request when the bill drawing issuance request of the asset issuer is received;

the certification module 520 is used for mapping the bill of lading corresponding to the bill of lading issuing request to certification assets based on the certification intelligent contract when the certification is passed;

and an event publishing module 530, configured to publish the event message that the bill of lading was successfully published.

The digital circulation device for the bill of lading provided by the embodiment of the application verifies the relevant information of the bill of lading issuing request when receiving the bill of lading issuing request, maps the bill of lading into the accredited asset according to the accredited intelligent contract, and stores the accredited asset to the block chain. Because the bill is converted into the digital bill after being subjected to the certification, the method has higher reliability, can effectively avoid the influence on the freight trade caused by the situations of bill drop loss, damage and the like, and is favorable for the normal operation of the freight trade.

determining whether the user address format of the associated party is correct;

It can be understood that each of the above modules of the bill extracting and digitizing streaming apparatus of the blockchain in this embodiment has a function of implementing the corresponding step of the bill extracting and digitizing streaming method of the blockchain in the embodiment shown in fig. 1. The function can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above. The modules can be software and/or hardware, and each module can be implemented independently or by integrating a plurality of modules. For the functional description of each module of the above list extraction digital streaming apparatus of the block chain, reference may be specifically made to the corresponding description of the list extraction digital streaming method of the block chain in the embodiment shown in fig. 1, and details are not described here again.

Based on the same principle as the method shown in fig. 4, fig. 11 shows a schematic structural diagram of another block chain based bill picking up digital streaming apparatus provided in the embodiment of the present application, and as shown in fig. 11, the block chain based bill picking up digital streaming apparatus 60 may include:

the verification module 610 is used for verifying relevant information of the bill raising transfer request based on the bill raising intelligent contract when the bill raising transfer request of the asset sender is received;

the asset transfer module 620 is used for transferring the certified asset of the bill drawing corresponding to the bill drawing transfer request from the asset sender to the asset receiver based on the certified intelligent contract when the verification is passed;

and an event issuing module 630, configured to issue a bill of lading transfer success event message.

The bill of lading digital circulation device provided by the embodiment of the application verifies the relevant information of the bill of lading transfer request when receiving the bill of lading transfer request, and transfers the certified assets from the asset sender to the asset receiver according to the certified intelligent contract. The digital bill of lading is traded on the block chain, so that the whole transaction process of the digital bill of lading is transparent, the transaction behavior cannot be repudiated, the transaction records are tamper-proof, the transaction process can be traced, the transaction consistency and the asset safety are fully guaranteed, all legal attributes of the paper bill of lading can be reserved, and the advantages of a decentralized platform in the aspects of transaction safety, cost reduction, quick arrival and the like can be fully exerted.

It can be understood that each of the above modules of the bill of lading digital streaming apparatus of the blockchain in this embodiment has a function of implementing the corresponding step of the bill of lading digital streaming method of the blockchain in the embodiment shown in fig. 4. The function can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above. The modules can be software and/or hardware, and each module can be implemented independently or by integrating a plurality of modules. For the functional description of each module of the above list extraction digital streaming apparatus of the block chain, reference may be specifically made to the corresponding description of the list extraction digital streaming method of the block chain in the embodiment shown in fig. 4, and details are not described here again.

Based on the same principle as the method shown in fig. 6, fig. 12 shows a schematic structural diagram of another block chain based bill picking up digital streaming apparatus provided by the embodiment of the present application, and as shown in fig. 12, the block chain based bill picking up digital streaming apparatus 70 may include:

the verification module 710 is configured to verify relevant information of the bill of lading request based on the intelligent contract of the bill of lading when the bill of lading request of the bill of lading is received;

the goods delivery module 720 is used for destroying the certified assets corresponding to the bill of lading from certified assets held by the goods delivery party based on the certified intelligent contract when the certification is passed;

and the event issuing module 730 is used for issuing a goods picking success event message.

The bill of lading digital circulation device provided by the embodiment of the application verifies the relevant information of the delivery request when receiving the delivery request, and destroys the accredited assets from the accredited assets held by the delivery party according to the accredited intelligent contract. Due to the fact that the goods picking transaction of the digital bill is carried out on the block chain, the whole process of the goods picking transaction of the digital bill is transparent, the transaction behavior cannot be repudiated, the transaction records are tamper-proof, the transaction process can be traced, the transaction consistency and the asset safety are fully guaranteed, all legal attributes of the paper bill can be reserved, and the advantages of the decentralized platform in the aspects of transaction safety, cost reduction, rapid arrival and the like can be fully exerted.

It can be understood that each of the above modules of the bill of lading digital streaming apparatus of the blockchain in this embodiment has a function of implementing the corresponding step of the bill of lading digital streaming method of the blockchain in the embodiment shown in fig. 6. The function can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above. The modules can be software and/or hardware, and each module can be implemented independently or by integrating a plurality of modules. For the functional description of each module of the above list extraction digital streaming apparatus of the block chain, reference may be specifically made to the corresponding description of the list extraction digital streaming method of the block chain in the embodiment shown in fig. 6, and details are not described here again.

Based on the same principle as the method shown in fig. 8, fig. 13 shows a schematic structural diagram of another block chain based bill picking up digital streaming apparatus provided by the embodiment of the present application, and as shown in fig. 13, the block chain based bill picking up digital streaming apparatus 80 may include:

the verification module 810 is configured to verify relevant information of the bill raising circulation request based on the bill raising intelligent contract when the bill raising circulation request is received;

the asset transfer module 820 is used for transferring the certified assets of the bill of lading corresponding to the bill of lading transfer request based on the certified intelligent contract when the verification is passed;

the event issuing module 830 is configured to issue a bill of lading transfer success event message.

The digital circulation device of the bill of lading that this application embodiment provided, when receiving the bill of lading circulation request, verify the relevant information of bill of lading circulation request to according to the intelligent contract of accreditation to carry out the circulation of the accreditation asset of bill of lading that the bill of lading circulation request corresponds the bill of lading. The receipt is converted into the digital receipt for circulation after being subjected to the certification, so that the method has higher reliability, the freight trade can be effectively prevented from being influenced by the conditions of the loss, the damage and the like of the receipt, the whole circulation process of the digital receipt is transparent, the transaction behavior can not be repudiated, the transaction record is prevented from being tampered, the transaction process can be traced, the transaction consistency and the asset safety can be fully ensured, all legal attributes of the paper receipt can be reserved, and the advantages of a decentralized platform in the aspects of transaction safety, cost reduction, quick arrival and the like can be fully exerted.

transferring the certified assets of the bill;

It can be understood that each of the above modules of the bill of lading digital streaming apparatus of the blockchain in this embodiment has a function of implementing the corresponding step of the bill of lading digital streaming method of the blockchain in the embodiment shown in fig. 8. The function can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above. The modules can be software and/or hardware, and each module can be implemented independently or by integrating a plurality of modules. For the functional description of each module of the above list extraction digital streaming apparatus of the block chain, reference may be specifically made to the corresponding description of the list extraction digital streaming method of the block chain in the embodiment shown in fig. 8, and details are not described here again.

The embodiment of the application provides an electronic device, which comprises a processor and a memory;

a memory for storing operating instructions;

and the processor is used for executing the bill-extracting digital stream method of the block chain provided by any embodiment of the application by calling the operation instruction.

As an example, fig. 14 shows a schematic structural diagram of an electronic device to which an embodiment of the present application is applicable, and as shown in fig. 14, the electronic device 2000 includes: a processor 2001 and a memory 2003. Wherein the processor 2001 is coupled to a memory 2003, such as via a bus 2002. Optionally, the electronic device 2000 may also include a transceiver 2004. It should be noted that the transceiver 2004 is not limited to one in practical applications, and the structure of the electronic device 2000 is not limited to the embodiment of the present application.

The processor 2001 is applied to the embodiment of the present application to implement the method shown in the above method embodiment. The transceiver 2004 may include a receiver and a transmitter, and the transceiver 2004 is applied to the embodiments of the present application to implement the functions of the electronic device of the embodiments of the present application to communicate with other devices when executed.

The Processor 2001 may be a CPU (Central Processing Unit), general Processor, DSP (Digital Signal Processor), ASIC (Application Specific Integrated Circuit), FPGA (Field Programmable Gate Array) or other Programmable logic device, transistor logic device, hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor 2001 may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs and microprocessors, and the like.

Bus 2002 may include a path that conveys information between the aforementioned components. The bus 2002 may be a PCI (Peripheral Component Interconnect) bus, an EISA (Extended Industry Standard Architecture) bus, or the like. The bus 2002 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 14, but this is not intended to represent only one bus or type of bus.

The Memory 2003 may be a ROM (Read Only Memory) or other type of static storage device that can store static information and instructions, a RAM (Random Access Memory) or other type of dynamic storage device that can store information and instructions, an EEPROM (Electrically Erasable Programmable Read Only Memory), a CD-ROM (Compact Disc Read Only Memory) or other optical Disc storage, optical Disc storage (including Compact Disc, laser Disc, optical Disc, digital versatile Disc, blu-ray Disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to these.

Optionally, the memory 2003 is used for storing application program code for performing the disclosed aspects, and is controlled in execution by the processor 2001. The processor 2001 is configured to execute application program codes stored in the memory 2003 to implement the bill of lading digitization streaming method for the block chain provided in any of the embodiments of the present application.

The electronic device provided by the embodiment of the application is applicable to any embodiment of the method, and is not described herein again.

Compared with the prior art, the electronic equipment provided by the embodiment of the application verifies the relevant information of the bill picking circulation request based on the bill picking intelligent contract when the bill picking circulation request is received; if the verification is passed, the accreditation assets of the bill of lading corresponding to the bill of lading circulation request are circulated based on the accreditation intelligent contract; and issuing the bill of lading circulation success event message. In the scheme, the offline physical assets corresponding to the bill of lading are converted into the online digital assets for value transfer, so that the real-time value transfer of the bill of lading physical assets can be realized in a credible transparent environment based on multi-party cooperation, the risks of one-cargo two-selling and one-cargo two-merging and the like possibly existing in the actual transfer process of the bill of lading physical assets are effectively solved, the asset transaction process can be programmable based on a block chain intelligent contract, the credible transfer efficiency of asset transfer is greatly improved, the default cost is improved, and the legal risk is reduced.

The embodiment of the present application provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the method for digitally streaming the bill of lading of the block chain shown in the above-mentioned method embodiment.

The computer-readable storage medium provided in the embodiments of the present application is applicable to any of the embodiments of the foregoing method, and is not described herein again.

Compared with the prior art, the embodiment of the application provides a computer-readable storage medium, when a bill raising circulation request is received, relevant information of the bill raising circulation request is verified based on a bill raising intelligent contract; if the verification is passed, the accreditation assets of the bill of lading corresponding to the bill of lading circulation request are circulated based on the accreditation intelligent contract; and issuing the bill of lading circulation success event message. In the scheme, the offline physical assets corresponding to the bill of lading are converted into the online digital assets for value transfer, so that the real-time value transfer of the bill of lading physical assets can be realized in a credible transparent environment based on multi-party cooperation, the risks of one-cargo two-selling and one-cargo two-merging and the like possibly existing in the actual transfer process of the bill of lading physical assets are effectively solved, the asset transaction process can be programmable based on a block chain intelligent contract, the credible transfer efficiency of asset transfer is greatly improved, the default cost is improved, and the legal risk is reduced.

It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in the flow chart of the figure may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A bill extraction digital streaming method based on a block chain is characterized by comprising the following steps:

when a bill extraction issuing request of an asset issuer is received, verifying relevant information of the bill extraction issuing request based on a bill extraction intelligent contract;

if the verification is passed, mapping the bill of lading corresponding to the bill of lading issuing request to be the certification-passing asset based on the certification-passing intelligent contract;

and issuing a bill of lading issue success event message.

2. The method of claim 1, wherein the verifying the relevant information of the bill issuance request based on the bill issuance intelligent contract comprises:

verifying the data format and the data type of the request data carried in the bill extraction issuing request;

if the bill picking record exists, determining the bill picking state of the bill picking record;

and if the bill drawing state is issued, determining that the relevant information of the bill drawing issuing request passes verification.

3. The method of claim 1, wherein mapping the bill of lading corresponding to the bill of lading issuance request to a certified asset based on a certified intelligent contract comprises:

creating a first pass ID based on the bill drawing number carried by the bill drawing issuance request;

if the user address of the bill drawing holding useful party is correct, acquiring the user address of the associated party of the first certification passing ID;

determining whether the format of the user address of the associated party is correct;

and if the user address of the associated party is incorrect, creating the association relationship between the user address of the bill holder and the first pass ID in a pass user mapping set.

4. The method of claim 1, wherein the bill of lading issuance request carries a bill of lading number, the bill of lading number being a unique identifier generated by the bill of lading in the bill of lading intelligent contract.

5. A bill extraction digital streaming method based on a block chain is characterized by comprising the following steps:

when a bill raising transfer request of an asset sender is received, verifying relevant information of the bill raising transfer request based on a bill raising intelligent contract;

if the verification is passed, the certified asset of the bill drawing corresponding to the bill drawing transfer request is transferred from the asset sender to the asset receiver based on the certified intelligent contract;

and issuing a bill of lading transfer success event message.

6. The method of claim 5, wherein the transferring the certified asset of the bill corresponding to the bill transfer request from the asset sender to the asset receiver based on the certified intelligent contract comprises:

and if the assets are consistent with the second certification ID, modifying the association relationship between the user address of the asset sender in the certification user mapping set and the second certification ID into the association relationship between the user address of the asset receiver and the second certification ID.

7. A bill extraction digital streaming method based on a block chain is characterized by comprising the following steps:

when a delivery request of a delivery party for a delivery order is received, verifying relevant information of the delivery request based on a delivery order intelligent contract;

if the verification is passed, destroying the evidence-passing assets corresponding to the bill of lading from the evidence-passing assets held by the delivery party based on an evidence-passing intelligent contract;

and issuing a goods picking success event message.

8. The method of claim 7, wherein destroying the certified asset corresponding to the bill of lading from certified assets held by the drafter based on the certified smart contract comprises:

determining whether the user address of the associated party of the third certification ID corresponding to the goods drawing request is correct or not;

if the third certificate ID is correct, determining whether the user address of the party associated with the third certificate ID is consistent with the user address of the goods-submitting party;

and if the third certificate ID is consistent with the third certificate ID, modifying the user address associated with the third certificate ID in the certificate passing user mapping set into a null address.

9. A bill extraction digital streaming method based on a block chain is characterized by comprising the following steps:

when a bill extraction circulation request is received, verifying relevant information of the bill extraction circulation request based on a bill extraction intelligent contract;

and issuing the bill of lading circulation success event message.

10. The method of claim 9, wherein the bill of lading flow request comprises any one of a bill of lading issue request, a bill of lading transfer request, and a bill of lading request;

if the bill of lading circulation request is a bill of lading issue request, the evidence-based intelligent contract circulates the evidence-based assets of the bill of lading corresponding to the bill of lading circulation request, and the method comprises the following steps:

if the bill of lading circulation request is a bill of lading circulation request, the evidence-based intelligent contract circulates the evidence-based assets of the bill of lading corresponding to the bill of lading circulation request, and the method comprises the following steps:

transferring the certified assets of the bill drawing corresponding to the bill drawing transfer request to an asset receiver by an asset sender based on a certified intelligent contract;

if the bill of lading circulation request is a bill of lading request, the evidence-based intelligent contract circulates the evidence-based assets of the bill of lading corresponding to the bill of lading circulation request, and the method comprises the following steps:

11. A bill extraction digital streaming device based on a block chain is characterized by comprising:

the certification passing module is used for mapping the bill of lading corresponding to the bill of lading issuing request to certification passing assets based on a certification passing intelligent contract when the bill of lading passes the verification;

12. A bill extraction digital streaming device based on a block chain is characterized by comprising:

the verification module is used for verifying the relevant information of the bill drawing transfer request based on the bill drawing intelligent contract when the bill drawing transfer request of the asset sender is received;

the asset transfer module is used for transferring the certified asset of the bill drawing corresponding to the bill drawing transfer request from the asset sender to the asset receiver based on a certified intelligent contract when the verification is passed;

13. A bill extraction digital streaming device based on a block chain is characterized by comprising:

the goods delivery module is used for destroying the certified assets corresponding to the bill of lading from certified assets held by the goods delivery party based on a certified intelligent contract when the certification is passed;

14. A bill extraction digital streaming device based on a block chain is characterized by comprising:

the asset transfer module is used for transferring the certified assets of the bill of lading corresponding to the bill of lading transfer request based on a certified intelligent contract when the verification is passed;

15. An electronic device comprising a processor and a memory;

the memory is used for storing operation instructions;

the processor is used for executing the method of any one of claims 1-10 by calling the operation instruction.

16. A computer-readable storage medium, characterized in that the storage medium has stored thereon a computer program which, when being executed by a processor, carries out the method of any one of claims 1-10.