CN111179094A - Block chain-based certificate transfer management method - Google Patents

Block chain-based certificate transfer management method Download PDF

Info

Publication number
CN111179094A
CN111179094A CN202010008585.7A CN202010008585A CN111179094A CN 111179094 A CN111179094 A CN 111179094A CN 202010008585 A CN202010008585 A CN 202010008585A CN 111179094 A CN111179094 A CN 111179094A
Authority
CN
China
Prior art keywords
certificate
enterprise
chain
issuing
passing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010008585.7A
Other languages
Chinese (zh)
Inventor
谢翠媚
朱静
孙文斌
曹锦成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Suiyin Cloud Chain Technology Co Ltd
Original Assignee
Guangdong Suiyin Cloud Chain Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Suiyin Cloud Chain Technology Co Ltd filed Critical Guangdong Suiyin Cloud Chain Technology Co Ltd
Priority to CN202010008585.7A priority Critical patent/CN111179094A/en
Publication of CN111179094A publication Critical patent/CN111179094A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q40/00Finance; Insurance; Tax strategies; Processing of corporate or income taxes
    • G06Q40/06Asset management; Financial planning or analysis
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60Protecting data
    • G06F21/64Protecting data integrity, e.g. using checksums, certificates or signatures

Landscapes

  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Theoretical Computer Science (AREA)
  • Accounting & Taxation (AREA)
  • Development Economics (AREA)
  • Computer Security & Cryptography (AREA)
  • Finance (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Technology Law (AREA)
  • Game Theory and Decision Science (AREA)
  • Strategic Management (AREA)
  • Economics (AREA)
  • Operations Research (AREA)
  • General Business, Economics & Management (AREA)
  • Human Resources & Organizations (AREA)
  • Marketing (AREA)
  • Entrepreneurship & Innovation (AREA)
  • Health & Medical Sciences (AREA)
  • Bioethics (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Hardware Design (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)

Abstract

The invention discloses a block chain-based evidence transfer management method, which comprises the following steps of: the fund side gives the pass and the credit to the core enterprise, and after the credit succeeds, the pass and the credit are transferred to the core enterprise to sign: when the core enterprise carries out the certificate signing and issuing, the core enterprise selects a corresponding credit certificate of a fund party each time, the signing and issuing amount does not exceed the credit amount, and after the successful signing and issuing, the certificate flow is transferred to the chain enterprise for assignment: the first-level chain belongs to the general certificate of selecting a core to sign each time when the general certificate is transferred, the transfer limit does not exceed the signing limit, and financing: when the chain enterprise carries out the certification-passing financing, one certificate-passing for transferring/issuing is selected each time, the financing amount does not exceed the certification-passing/issuing amount, and after the financing is successful, the certificate-passing is transferred to a capital side for repayment. The method solves the problem that the credit checking cost of a fund party on a financing enterprise is high in the traditional financial mode, solves the problem that the fund party is difficult to accurately judge the loan amount in the traditional financial mode, and solves the problem in the traditional supply chain financial mode.

Description

Block chain-based certificate transfer management method
Technical Field
The invention relates to the technical field of information and a block chain technology, in particular to a method for managing a certification-passing flow based on a block chain.
Background
At present, the number of medium and small enterprises in China is 4000 ten thousand, but the medium and small enterprises face a plurality of obstacles in the development process due to small scale, low fixed asset proportion, low financial information transparency and the like, wherein the problems of difficult financing, slow financing and expensive financing are the most prominent. In order to adapt to the development trend of supply chain financial settlement and supply chain financial financing modes, a complete and flexible-operation supply chain financial business management platform needs to be provided to support business process management, risk management, data information management and the like, so that the process is optimized, the operation is standardized, the risk prevention is enhanced, and the market competitiveness is improved. In the supply chain financial business process, around a certain core enterprise, logistics, business flow, information flow and fund flow are controlled, so that a fund party, the core enterprise and a chain enterprise are connected into a whole, and the certificate is a digitalized encryption right certificate and is used as an important certificate in the supply chain financial business flow, and the certificate has the characteristics of negotiability, identification and tamper resistance. The method carries out certification on the assets such as accounts receivable of the enterprise and the like in a supply chain financial platform and can be put into a block chain for circulation. A capital side only needs to check enterprise credit of a core enterprise and grant a letter, the core enterprise signs a letter to a chain enterprise, the chain enterprise can mutually transfer the letter and can also use the letter to carry out financing to the capital side, the letter circulation management is realized, the business data of contracts, accounts receivable, bill vouchers, mortgage goods vouchers and the like in the entity economy are butted, the letter can be split, the flexible circulation can be realized, the verification and the traceability can be carried out at any time, and the problem of difficult financing of small and medium enterprises is solved.
Disclosure of Invention
The invention aims to provide a block chain-based method for managing the circulation of the currency, which solves the problem that the credit auditing cost of a capital party to a financing enterprise is high in the traditional financial mode, solves the problem that the capital party cannot accurately judge the loan amount in the traditional financial mode, solves the problems that the currency cannot be split and the circulation is poor in the traditional supply chain financial mode, and solves the problem that the capital party, the core and the chain are difficult to account for the circulation of the currency owned by the enterprise in the traditional supply chain financial mode.
The purpose of the invention can be realized by the following technical scheme:
a block chain-based evidence transfer management method comprises the following steps:
s1, credit granting: the fund side gives the passing certificate to the core enterprise, and the passing certificate is transferred to the core enterprise after the successful giving certificate;
s2, issuing: when the core enterprise carries out the certificate issuing, the core enterprise selects a corresponding credit certificate of a fund party each time, the issuing amount does not exceed the credit amount, and after the certificate issuing is successful, the certificate issuing flow is transferred to the affiliated enterprise;
s3, assignment: the primary chain selects a core issued permit each time when the primary chain carries out permit transfer, the transfer limit does not exceed the issue limit, the secondary chain selects a primary chain issued permit each time when the secondary chain carries out permit transfer, and the transfer limit does not exceed the primary transfer limit; after the transfer is successful, the certificate is transferred to a subordinate chain enterprise;
s4, financing: when the chain enterprise carries out the certification-passing financing, one certification-passing for transferring/issuing is selected each time, the financing amount does not exceed the certification-passing/issuing amount, and the certification-passing is transferred to a capital party after the financing is successful;
s5, repayment: and the core enterprise repays the money, the successful repayment needs to judge the validity period of the passing certificate, if the validity period of the passing certificate is not due, the passing certificate returns to the core account, if the validity period of the passing certificate is due, the passing certificate returns to the fund party recycling account, the chain enterprise repays the money, and the successful repayment returns to the chain enterprise.
Further, the block chain in S1 records the number of pass certificates, the time of creating pass certificates, the father pass certificate, and the root pass certificate.
Further, the enterprise belonging to the next-level chain after the issuance is completed in S2 obtains the pass, signs the pass number + the pass creation time + the father pass + the root pass information by using the SHA1 signing algorithm, records the signature in the database, and performs the uplink on the block chain. The first-level chaining enterprise can view the uplink information of the certificate.
The invention has the beneficial effects that:
1. the invention solves the problem that the credit auditing cost of a financing enterprise is high by a fund party in the traditional financial mode;
2. the invention solves the problem that the fund side is difficult to accurately judge the loan amount in the traditional financial mode;
3. the invention solves the problems that the general certificate can not be split and the liquidity is poor in the traditional supply chain financial mode;
4. the invention solves the problem that in the traditional supply chain financial mode, a capital party, a core and a chain belong to the difficulty in reconciliation of the certificate of communication owned by the enterprise.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic flow chart of an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A block chain-based certificate transfer management method comprises the following steps:
s1, credit granting: and the fund direction is granted to the core enterprise. And the fund side audits the basic information, the credit increase information and the asset information of the core enterprise, grants the limit to the core enterprise after the audit is passed, and sets the validity period of the certification and the credit. And after the trust passes, the core enterprise obtains the root pass certificate. The core enterprise can view the obtained communication details of the credit granted by the fund side, and can view the available balance, the signed quantity, the validity period of the credit and the issuing time of the credit. The number of the certificates, the creation time of the certificates, the father certificates and the root certificates form the uplink information of the certificates, wherein the father certificates refer to the certificates of the previous layer, and the root certificates refer to the source certificates (sent during the credit). The block chain records the number of the certificates, the creation time of the certificates, the father certificates and the root certificates. The core enterprise and the fund party can check the uplink information of the credit transaction. The core enterprise can view the uplink information of the certificate.
S2, issuing: the core enterprise and the chain enterprise can perform asset registration. Under the normal state of the certificate of correspondence, the core enterprise can select the payable assets to carry out certificate of correspondence signing and issue to the first-level chain enterprise and set the validity period of the certificate of correspondence signing and issue. The credit line of the credit card can not exceed the credit line of the credit card, and the credit card can be split for signing and issuing. After the validity period of the credit is expired, the credit certificate which is not issued is returned to the corresponding fund party. And after the signing is finished, the enterprise belonging to the next-level chain obtains the certificates, signs are carried out on the certificate number + the certificate creation time + the father certificate + the root certificate information by using an SHA1 signing algorithm, the signatures are recorded in a database, and meanwhile, the chaining is carried out on the block chain. The first-level chaining enterprise can view the uplink information of the certificate. The first-level chain enterprise and the core enterprise can check the uplink information of the issued transaction.
S3, assignment: the upper-level chain enterprises and the lower-level chain enterprises can perform asset registration. Under the normal state of the permit, the superior chain enterprise can select the payable assets to carry out the permit transfer on the inferior chain enterprise, and the permit transfer among the multilevel chains is realized. The transfer permit limit can not exceed the issuing/transferred permit limit, and the issuing/transferred permit can be split for transfer. After the transfer is completed, the lower chain belongs to enterprises to obtain the certificates, and the enterprises sign the certificates by using an SHA1 signing algorithm according to the certificate number, the certificate creation time, the father certificate and the root certificate information, record the signatures in a database, and simultaneously carry out uplink on the block chain. The lower-level chain enterprise can check the uplink information of the certificate. The lower-level chain enterprise and the upper-level chain enterprise can check the uplink information of the transfer transaction.
S4, financing: under the normal state of the certificate of the currency, the chain enterprise can select the certificate of the currency to carry out financing to the funding party. The financing amount can not exceed the issuing/transferring general certificate amount, and the issuing/transferring general certificate can be split for financing. After the financing is completed, the fund side obtains the evidence, and the fund side can check the evidence details of successful financing of the chain-belonging enterprises, including the names of the financing enterprises, the financing quantity, the credit validity period, the issuing validity period and the evidence obtaining time. And signing by using SHA1 signing algorithm according to the number of the certificates, the creation time of the certificates, the father certificates and the root certificates, recording the signatures in a database, and simultaneously performing uplink on a block chain. The funding party can view the uplink information of the certificate. The chain enterprise and the fund side can check the uplink information of the financing transaction.
S5, repayment: the core enterprise repays before the validity period of the credit expires, and the core enterprise is returned to after the repayment is successful; the core enterprise repays after the validity period of the credit expires, and returns to the fund party after successful repayment; and the chain enterprise performs payment, and the payment is returned to the chain enterprise through the pass certificate after the payment is successful. The repayment amount can not exceed the financing general evidence amount, and the financing general evidence can be split for repayment. And signing by using SHA1 signing algorithm according to the number of the certificates, the creation time of the certificates, the father certificates and the root certificates, recording the signatures in a database, and simultaneously performing uplink on a block chain. The permit recycling enterprise can check the uplink information of the permit. The payment enterprise and the collection enterprise can check the uplink information of the payment transaction.
S6, checking the uplink information and the flow chart through the uplink hash jump of the transaction order, wherein the flow of the certificate passes between different enterprises such as a capital party and a core enterprise, a core enterprise and a chain enterprise, a superior chain enterprise and a subordinate chain enterprise, a chain enterprise and a capital party and the like. And the certificate of the business generated in the process can skip to check the uplink information through the certificate of the enterprise.
Example 1
A method for managing a voucher flow based on a block chain, as shown in fig. 1, includes the following steps:
s1, credit granting: the fund side gives credit to the core enterprise, the fund side gives credit limit to the core enterprise for 5000 ten thousand, and the credit giving time and the credit giving validity period are determined.
And the fund side audits the basic information, the credit increase information and the asset information of the core enterprise, grants the limit to the core enterprise after the audit is passed, and sets the validity period of the certification and the credit. And after the trust passes, the core enterprise obtains the root pass certificate. The core enterprise can view the obtained communication details of the credit granted by the fund side, and can view the available balance, the signed quantity, the validity period of the credit and the issuing time of the credit. The number of the certificates, the creation time of the certificates, the father certificates and the root certificates form the uplink information of the certificates, wherein the father certificates refer to the certificates of the previous layer, and the root certificates refer to the source certificates (sent during the credit). The block chain records the number of the certificates, the creation time of the certificates, the father certificates and the root certificates. The core enterprise and the fund party can check the uplink information of the credit transaction. The core enterprise can view the uplink information of the certificate.
S2, issuing: the core enterprise and the chain enterprise can register assets, and determine the issuing time and the issuing validity period.
Under the normal state of the certificate of correspondence, the core enterprise can select the payable assets to carry out certificate of correspondence signing and issue to the first-level chain enterprise and set the validity period of the certificate of correspondence signing and issue. The credit line of the credit card can not exceed the credit line of the credit card, and the credit card can be split for signing and issuing. After the validity period of the credit is expired, the credit certificate which is not issued is returned to the corresponding fund party. And after the signing is finished, the enterprise belonging to the next-level chain obtains the certificates, signs are carried out on the certificate number + the certificate creation time + the father certificate + the root certificate information by using an SHA1 signing algorithm, the signatures are recorded in a database, and meanwhile, the chaining is carried out on the block chain. The first-level chaining enterprise can view the uplink information of the certificate. The first-level chain enterprise and the core enterprise can check the uplink information of the issued transaction.
S3, assignment: the superior chain enterprise and the subordinate chain enterprise can register assets, distribute funds to the subordinate enterprises and issue the levels.
Under the normal state of the permit, the superior chain enterprise can select the payable assets to carry out the permit transfer on the inferior chain enterprise, and the permit transfer among the multilevel chains is realized. The transfer permit limit can not exceed the issuing/transferred permit limit, and the issuing/transferred permit can be split for transfer. After the transfer is completed, the lower chain belongs to enterprises to obtain the certificates, and the enterprises sign the certificates by using an SHA1 signing algorithm according to the certificate number, the certificate creation time, the father certificate and the root certificate information, record the signatures in a database, and simultaneously carry out uplink on the block chain. The lower-level chain enterprise can check the uplink information of the certificate. The lower-level chain enterprise and the upper-level chain enterprise can check the uplink information of the transfer transaction.
S4, financing: under the normal state of the permit, the chain enterprise can select the permit to carry out financing to the fund party, the financing amount can not exceed the issuing/transferring permit amount, and the issuing/transferring permit can be split to carry out financing.
After the financing is completed, the fund side obtains the evidence, and the fund side can check the evidence details of successful financing of the chain-belonging enterprises, including the names of the financing enterprises, the financing quantity, the credit validity period, the issuing validity period and the evidence obtaining time. And signing by using SHA1 signing algorithm according to the number of the certificates, the creation time of the certificates, the father certificates and the root certificates, recording the signatures in a database, and simultaneously performing uplink on a block chain. The funding party can view the uplink information of the certificate. The chain enterprise and the fund side can check the uplink information of the financing transaction.
S5, repayment: the core enterprise repays before the validity period of the credit expires, and the core enterprise is returned to after the repayment is successful; the core enterprise repays after the validity period of the credit expires, and returns to the fund party after successful repayment; and the chain enterprise performs payment, and the payment is returned to the chain enterprise through the pass certificate after the payment is successful. The repayment amount can not exceed the financing general evidence amount, and the financing general evidence can be split for repayment. And signing by using SHA1 signing algorithm according to the number of the certificates, the creation time of the certificates, the father certificates and the root certificates, recording the signatures in a database, and simultaneously performing uplink on a block chain. The permit recycling enterprise can check the uplink information of the permit. The payment enterprise and the collection enterprise can check the uplink information of the payment transaction.
S6, checking the uplink information and the flow chart through the uplink hash jump of the transaction order, wherein the flow of the certificate passes between different enterprises such as a capital party and a core enterprise, a core enterprise and a chain enterprise, a superior chain enterprise and a subordinate chain enterprise, a chain enterprise and a capital party and the like. And the certificate of the business generated in the process can skip to check the uplink information through the certificate of the enterprise.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims (3)

1. A block chain-based evidence transfer management method is characterized by comprising the following steps:
s1, credit granting: the fund side gives the passing certificate to the core enterprise, and the passing certificate is transferred to the core enterprise after the successful giving certificate;
s2, issuing: when the core enterprise carries out the certificate issuing, the core enterprise selects a corresponding credit certificate of a fund party each time, the issuing amount does not exceed the credit amount, and after the certificate issuing is successful, the certificate issuing flow is transferred to the affiliated enterprise;
s3, assignment: the primary chain selects a core issued permit each time when the primary chain carries out permit transfer, the transfer limit does not exceed the issue limit, the secondary chain selects a primary chain issued permit each time when the secondary chain carries out permit transfer, and the transfer limit does not exceed the primary transfer limit; after the transfer is successful, the certificate is transferred to a subordinate chain enterprise;
s4, financing: when the chain enterprise carries out the certification-passing financing, one certification-passing for transferring/issuing is selected each time, the financing amount does not exceed the certification-passing/issuing amount, and the certification-passing is transferred to a capital party after the financing is successful;
s5, repayment: and the core enterprise repays the money, the successful repayment needs to judge the validity period of the passing certificate, if the validity period of the passing certificate is not due, the passing certificate returns to the core account, if the validity period of the passing certificate is due, the passing certificate returns to the fund party recycling account, the chain enterprise repays the money, and the successful repayment returns to the chain enterprise.
2. The method according to claim 1, wherein the block chain records a number of certificates of passage, a time of creation of the certificates of passage, a father certificate of passage, and a root certificate of passage in S1.
3. The method according to claim 1, wherein the step S2 of issuing a certificate of receipt for a subsequent chain enterprise is performed, and the certificate of receipt is signed by using SHA1 signature algorithm for certificate of receipt number + number of certificates of receipt + time of creation of certificate of receipt + father certificate of receipt + root certificate information, and recorded in a database, and the uplink is performed on the block chain. The first-level chaining enterprise can view the uplink information of the certificate.
CN202010008585.7A 2020-01-06 2020-01-06 Block chain-based certificate transfer management method Pending CN111179094A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010008585.7A CN111179094A (en) 2020-01-06 2020-01-06 Block chain-based certificate transfer management method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010008585.7A CN111179094A (en) 2020-01-06 2020-01-06 Block chain-based certificate transfer management method

Publications (1)

Publication Number Publication Date
CN111179094A true CN111179094A (en) 2020-05-19

Family

ID=70647508

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010008585.7A Pending CN111179094A (en) 2020-01-06 2020-01-06 Block chain-based certificate transfer management method

Country Status (1)

Country Link
CN (1) CN111179094A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112184194A (en) * 2020-11-02 2021-01-05 立旃(上海)科技有限公司 Resource authorization method and device based on block chain
CN114240641A (en) * 2022-02-24 2022-03-25 北京锐融天下科技股份有限公司 Credit transfer method and system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110223142A (en) * 2019-05-25 2019-09-10 上海源庐加佳信息科技有限公司 A kind of supply chain implementation method based on block chain technology
CN110533538A (en) * 2019-09-02 2019-12-03 深圳象右看齐网络技术有限公司 A kind of supply chain financial application method and device based on block chain technology

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110223142A (en) * 2019-05-25 2019-09-10 上海源庐加佳信息科技有限公司 A kind of supply chain implementation method based on block chain technology
CN110533538A (en) * 2019-09-02 2019-12-03 深圳象右看齐网络技术有限公司 A kind of supply chain financial application method and device based on block chain technology

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112184194A (en) * 2020-11-02 2021-01-05 立旃(上海)科技有限公司 Resource authorization method and device based on block chain
CN114240641A (en) * 2022-02-24 2022-03-25 北京锐融天下科技股份有限公司 Credit transfer method and system
CN114240641B (en) * 2022-02-24 2022-05-20 北京锐融天下科技股份有限公司 Credit transfer method and system

Similar Documents

Publication Publication Date Title
CN111626733A (en) Supply chain financial service system based on block chain
CN105681301B (en) Settlement method on block chain
CN110175903A (en) A kind of quotient's ticket financing method and device
US9324077B2 (en) System, method, and computer program product for issuing and using debit cards
CN109615510A (en) A multi-level credit enhancement method for supply chain finance based on blockchain
WO2021143081A1 (en) Digital operation method and apparatus for blockchain supply chain financial platform
CN111080435B (en) Block chain-based import accounting method and computer-readable storage medium
CN110737721B (en) Receivable account transfer financing method and device based on block chain architecture
CN106920169A (en) A kind of digital ticket method of commerce and system based on block chain and digital cash
CN101782992A (en) System and method for online transaction
CN112785292A (en) Prepaid card management method, prepaid card management system, prepaid card management device and prepaid card management storage medium
CN111260485A (en) Mutual-aid insurance method, equipment and medium based on block chain
CN112767185B (en) Reverse warranty financing method, device and storage medium based on blockchain
CN113674090B (en) Dynamic mortgage loan supervision method, system, equipment and storage medium based on blockchain
CN111008903A (en) Block chain-based credit insurance accrual pledge financing system and method
CN113783698A (en) Supply chain financial method based on decentralized cross-chain
CN111275544A (en) Supply chain financial management method and system based on block chain
CN111210339A (en) Enterprise credit transfer method and device based on block chain electronic invoice
CN111222980B (en) Method for carrying out export credit item lower discount based on blockchain and storage medium
CN111369371A (en) Business ticket financing system and method based on block chain
CN111028082A (en) E-commerce platform account receivable management system and method based on block chain
CN113919938A (en) Domestic buyer's warranty financing method, device, equipment and medium based on block chain
CN111062812A (en) Guarantee and refund financing system and method based on block chain
CN113570350A (en) A blockchain-based bill digital interaction system and method
CN113627901A (en) Blockchain-based factoring pool financing method and system, equipment and storage medium

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20200519