CN110807623A - Block chain three-party intelligent contract transaction method and system - Google Patents
Block chain three-party intelligent contract transaction method and system Download PDFInfo
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Abstract
The invention discloses a block chain three-party intelligent contract transaction method and a system, wherein the method comprises the steps that a block user A sends transaction request information for obtaining a proper amount of block chain general evidence from a block user B to a block chain system; the block chain system is intelligently matched with a plurality of block users C and pushed to a block user B, and a three-party intelligent contract is deployed between the block user A, B and the block users C; the block user A transfers the first legal currency of the corresponding amount to the account balance of the block user B; and the block chain system releases the three-party transaction information to trigger automatic execution of the three-party intelligent contract. The invention is not point-to-point transaction, but forms three-party transaction between the block user B and the block user C associated with the block user A, and forms three-party transaction behavior through freezing and unfreezing of the block link certificate, thereby improving the transaction reliability, ensuring the traceability of the transaction behavior, forming a chat group and promoting the smooth execution of three-party intelligent contracts.
Description
Technical Field
The invention relates to the technical field of block chains, in particular to a transaction method and a transaction system for a block chain three-party intelligent contract.
Background
Currently, the trading of digital assets is performed on a centralized exchange platform, and the point-to-point trading process is generally one in which one party takes the lead of delivering assets to another party, and the other party subsequently delivers assets. It is clear that the party who first delivered the asset is at risk of being fraudulent. In the field of digital assets, particularly those based on cryptography and blockchains, the transfer delivery process of the assets is completely irreversible, i.e., one party cannot recover the fraudulent assets after being subjected to fraud, and the losses are serious. Therefore, at present, the digital asset transaction needs to be performed by an intermediate third party (i.e., exchange) trusted by both parties. The traditional centralized scheme does not need cooperation accounting, so that the data access authority can be conveniently set, and the problem of privacy can be well solved. However, the centralized platform has too large mastery power and is difficult to monitor, internal transaction, invasion of customer assets and other parts are easy to occur, and both transaction parties need to bear the risk.
A Block chain (Block chain) is a novel application mode of computer technologies such as distributed data storage, point-to-point transmission, a consensus mechanism, an encryption algorithm and the like. The consensus mechanism is a mathematical algorithm for establishing trust and obtaining rights and interests among different nodes in the blockchain system. The blockchain is also a bottom-up innovation technology, is not directed at the reformation and the upgrade of a certain kind of application, but can generate subversive changes on all scenes related to data storage and information exchange processes, and the application prospect of the blockchain is expected by people.
The concept of smart contracts, proposed by nissabo in 1994, refers to contracts in which the terms are recorded in computer language instead of legal language, which defines in mathematical and programmed form a series of contracts' rights and obligations, which, once triggered by a particular transaction, can be automatically executed. Due to the lack of system and technical support at that time, the concept of intelligent contracts is not realized until the appearance of Etherns in 2013, so that the intelligent contracts can be executed in a trusted decentralized blockchain environment. The intelligent contract based on the block chain system not only has the advantages of cost efficiency and the like, but also can avoid the interference of malicious behaviors on the normal execution of the intelligent contract, has the characteristics of automation, decentralization and result determination, and cannot be stopped once being deployed on the block chain, so that the intelligent contract ensures that the processes of storage, reading, execution and the like are transparent, the record can be tracked and cannot be tampered.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides a transaction method and a transaction system for a block chain three-party intelligent contract.
In order to achieve the purpose, the invention adopts the following technical scheme: a transaction method of a blockchain three-party intelligent contract is applied to a blockchain system; the block chain system comprises a plurality of block users; the block user is provided with a block account for managing account balance and/or block link certificate of the block user; the plurality of block users comprise a block user A, a block user B and at least one block user C;
the block chain three-party intelligent contract trading method comprises the following steps:
(1) the block user A sends transaction request information for obtaining a block link pass-certificate from a block user B to a block chain system;
the transaction request information comprises a first quantity of block chain certificates required by the block user A and a legal coin type of account balance of the block user A;
the block chaining certification is a circulated encrypted digital rights certification; the legal type of the account balance of the block user A comprises a first legal currency, and the legal type of the account balance of the block user B comprises a first legal currency and a second legal currency;
(2) the block chain system is intelligently matched with a plurality of block users C and pushed to a block user B, and a three-party transaction relation is formed among the block user A, the block user B and the block users C and a three-party intelligent contract is deployed;
there is an association relationship between the block user a and the block users C,
the block user C is to exchange a certain number of block chain certificates into an equivalent second legal currency; the sum of the number of block chain certificates to be exchanged by the plurality of block users C is greater than or equal to a first number; the legal currency type of the account balance of the block user C comprises a second legal currency;
(3) the block user A transfers the first legal currency of the first amount of the account balance of the block account to the account balance of the block user B to trigger automatic execution of the three-party intelligent contract; the value of the first number of block chain certificates is equal to a first legal currency of a first amount;
(4) the block chain system immediately transfers the first quantity of block chain general certificates of the block accounts of the block user B to the block account of the block user A and freezes the block chain general certificates;
(5) the block user B transfers the second legal money with the corresponding amount of the account balance of the block account to the account balances of the block users C respectively, and the block chain system immediately transfers the corresponding amount of block chain general certificates of the block accounts of the block users C to the block account of the block user B respectively and freezes the block chain general certificates;
the value of the corresponding number of block chain certificates is equal to the value of the corresponding amount of the second legal tender;
(6) once the blockchain user C initiates a unfreezing request of the corresponding number of blockchain general certificates to the blockchain system, the blockchain system unfreezes the corresponding number of blockchain general certificates of the blockchain account of the blockchain user a.
Further, in the above method, the holder of the blockchain voucher cannot handle the blockchain voucher in the frozen state, the handling includes transaction, presentation and extraction, and the handling of the blockchain voucher in the frozen state is listed as being invalid by the blockchain system.
Further, in the above method, the three-party intelligent contract is a computer executable code generated according to a three-party intelligent transaction among the block user a, the block user B, and the plurality of block users C.
Further, in the method, a private block chain network is formed by the block user a, the block user B and the block users C, and a three-party intelligent contract is deployed in the private block chain network.
Further, in the above method, the blockchain system broadcasts and issues transfer and collection information of the blockaccount of the plurality of blockusers C and/or unfreezing request information of the blockchain certificate in the private blockchain network.
Further, in the above method, the block chain system forms a chat group with the block user a, the block user B, and the plurality of block users C, and the chat group provides social communication among the block user a, the block user B, and the plurality of block users C.
Further, in the above method, the block user performs real-name registration authentication through a block chain system, and preferably, the real-name registration authentication includes filling in a real name and an identity card number and providing a real photo; the real photo is consistent with the photo of the identity card, and the mobile phone number corresponds to real-name information.
Further, in the above method, preferably, the real-name registration authentication further includes that the user provides a handwritten signature, and the handwritten signature of the user is an electronic handwritten track of the user name formed by the user through a terminal touch screen.
Further, in the above method, it is preferable that the transaction information is recorded in the form of blocks in the nodes of the private blockchain network.
Another embodiment of the present invention further provides a blockchain system, where the blockchain system includes a plurality of blockchain network nodes, and each blockchain network node can perform point-to-point communication and/or transaction with any other blockchain network node;
the block chain system comprises at least one private block chain network; the private block chain network comprises a first block network node, a second block network node and a plurality of third block network nodes, and the private block chain network deploys a three-party intelligent contract and executes a three-party intelligent transaction behavior; the three-party smart trading activity is the step of executing a trading method of a blockchain three-party smart contract according to any one of claims 1 to 9.
Compared with the prior art, the block chain three-party intelligent contract trading method and system provided by the invention have the advantages that the three-party intelligent contract is deployed among the block user A, the block user B and the block users C, the risk that one party of the two parties of the existing point-to-point trading is cheated when the assets are delivered first is solved, meanwhile, the difficult supervision of adopting a centralized platform is avoided, and the risk behaviors such as insider trading, customer assets invading and the like are easy to occur.
The method and the system form a private block chain network among a block user A, a block user B and a plurality of block users C, and deploy a three-party intelligent contract in the private block chain network to automatically trigger the execution of the three-party intelligent contract, wherein the block user A and the block user B do not directly perform point-to-point transaction, but form a three-party transaction behavior through the block users C associated with the block user A, and form a three-party transaction behavior through the freezing and thawing of block chain communication certificates (digital assets), thereby improving the transaction reliability, ensuring the traceability of the transaction behavior, forming an association relationship between the block users C and the block user A, and simultaneously forming a three-party chat group to promote the smooth execution of the three-party intelligent contract. In addition, the transaction data is stored in a block chain mode, so that the recorded data has the characteristics of difficulty in being tampered, real and reliable data and the like.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a flowchart of a method for trading a blockchain three-party smart contract according to embodiment 1 of the present invention;
FIG. 2 is a schematic diagram of a transaction of a blockchain three-party intelligent contract according to embodiment 1 of the present invention;
fig. 3 is a schematic diagram of a transaction of a blockchain three-party intelligent contract according to embodiment 3 of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the present invention, several means one or two or more. The second legal currency of the invention is not only one legal currency, but also can contain the meanings of various legal currencies, and simultaneously, the second legal currency also can contain the first legal currency, wherein the first legal currency is the legal currency type corresponding to the account balance of the block user A, and the second legal currency is the legal currency type corresponding to the account balance of the block user C. The legal currency of the invention refers to legal currency, does not represent actual goods or goods, and the issuer does not convert the currency into physical obligation; only by government regulations, it is the currency of legal currency. The three parties are not limited to three users, but the three parties are a block user a, a block user B and at least one block user C, wherein the at least one block user C is called a party, and can be one block user C or a plurality of block users C.
Example 1
As shown in fig. 1 and fig. 2, an embodiment of the present invention provides a method for trading a blockchain three-party intelligent contract, where the method for trading the blockchain three-party intelligent contract is applied to a blockchain system; the block chain system comprises a plurality of block users, and the block users are subjected to real-name registration authentication through the block chain system; the block user is provided with a block account for managing account balance and/or block link certificate of the block user; the plurality of block users comprise a block user A, a block user B and at least one block user C;
the block chain three-party intelligent contract trading method comprises the following steps:
(1) the block user A sends transaction request information for obtaining a block link pass-certificate from a block user B to a block chain system;
the transaction request information comprises a first quantity of block chain certificates required by the block user A and a legal coin type of account balance of the block user A; the legal currency type of the account balance of the block user A comprises a first legal currency, and the block chaining certification is a circulated encrypted digital rights and interests certification; the legal currency types of the account balance of the block user B comprise a first legal currency and a second legal currency; in the embodiment of the present invention, the first number is 500, and the first legal currency is renminbi; the second legal currency is Hongkong currency and U.S. dollars.
(2) The block chain system is intelligently matched with a plurality of block users C and pushed to a block user B, and a three-party transaction relation is formed among the block user A, the block user B and the block users C and a three-party intelligent contract is deployed;
the block user A and the block users C have an incidence relation, and the block user C is to convert a certain number of block chain certificates into second equivalent legal coins; the sum of the number of block chain certificates to be exchanged by the plurality of block users C is greater than or equal to a first number; namely, a plurality of block users C send out a certain number of block chain certificates to be transferred to obtain equivalent second legal coins; the sum of the numbers of the block chain certificates to be transferred by a certain number of block users C is larger than or equal to a first number, and the legal coin type of the account balance of the block users C comprises a second legal coin;
in the embodiment of the present invention, the plurality of block users C are respectively a block user C1, a block user C2, a block user C3, and a block user C4, and preferably, the plurality of block users are respectively in friendship with the block user a, that is, the block user C1, the block user C2, the block user C3, and the block user C4 mark the block user a as friendship, and the block user a marks the block user C1, the block user C2, the block user C3, and the block user C4 as friendship, where the legal currency type of the account balance of the block user C1 includes a harbor currency, which is to transfer 10 block link certificates to obtain a harbor currency having a value equal to the 10 block link certificates; the legal type of account balance for blockuser C2 includes dollars in which to transfer 100 blockchain passes in exchange for dollars worth of the 100 blockchain passes; the legal currency type of the account balance of the blockbank user C3 includes a hong Kong currency, which is to transfer 300 blockchain certificates for a hong Kong currency having the same value as the 300 blockchain certificates; the legal type of account balance for Block user C4 contains USD; it is intended to transfer 90 blockchain certificates in exchange for dollars worth the 90 blockchain certificates.
(3) The block user A transfers the first legal currency of the first amount of the account balance of the block account to the account balance of the block user B to trigger automatic execution of the three-party intelligent contract; the value of the first number of block chain certificates is equal to a first legal currency of a first amount;
in the embodiment of the invention, a block user A transfers the RMB with the first amount of the account balance of a block account to the account balance of a block user B to trigger automatic execution of a three-party intelligent contract; the value of the 500 block chaining-pass certificate is equal to the RMB of the first amount; preferably, the blockchain system publishes the three-party transaction information.
(4) The block chain system immediately transfers the first quantity of block chain general certificates of the block accounts of the block user B to the block account of the block user A and freezes the block chain general certificates;
in the embodiment of the invention, the block chain system immediately transfers 500 block chains of the block account of the block user B to the block account of the block user A for certification and freezes;
(5) the block user B transfers the second legal money with the corresponding amount of the account balance of the block account to the account balances of the block users C respectively, and the block chain system immediately transfers the corresponding amount of block chain general certificates of the block accounts of the block users C to the block account of the block user B respectively and freezes the block chain general certificates; the value of the corresponding number of block chain certificates is equal to the value of the corresponding amount of the second legal tender;
in the embodiment of the invention, a block user B transfers a port coin with a corresponding amount of account balance of a block account of the block user B to the account balance of a block user C1, wherein the port coin with the corresponding amount is a port coin with 10 block link certificates with the same value, and a block chain system immediately transfers 10 block link certificates of the block account of the block user C1 to the block account of the block user B and freezes the 10 block link certificates;
tile user B transfers the corresponding dollar amount of the account balance of his tile account to the account balance of tile user C2, where the corresponding dollar amount is the 100 dollars for which the blockchain passcertificate is equivalent, and the blockchain system immediately transfers the 100 blockchain passcertificates of tile user C2 to tile user B's tile account and freezes;
the block user B transfers the port coins with the corresponding amount of the account balance of the block account into the account balance of the block user C3, wherein the port coins with the corresponding amount are 300 port coins with the same block link pass certificate value, and the block chain system immediately transfers the 300 block link pass certificates of the block account of the block user C3 into the block account of the block user B and freezes the block link pass certificates;
block user B transfers the corresponding dollar amount of the account balance of his block account to the account balance of Block user C4, where the corresponding dollar amount is 90 blockchain passes to the equivalent dollar value, and the blockchain system immediately transfers and freezes the 90 blockchain passes of the block account of Block user C4 to the block account of Block user B; (ii) a
(6) Once the blockchain user C initiates a unfreezing request of the corresponding number of blockchain general certificates to the blockchain system, the blockchain system unfreezes the corresponding number of blockchain general certificates of the blockchain account of the blockchain user a.
In the embodiment of the present invention, the block user C1 initiates a thawing request for 10 block chain certificates to the block chain system, and then the block chain system thaws 10 block chain certificates in the frozen state of the block account of the block user a, and certainly, the block chain system thaws 10 block chain certificates in the frozen state of the block account of the block user B, and in the same way,
when the block user C2 initiates a thawing request for 100 block chaining certificates to the block chaining system, the block chaining system will thaw 100 block chaining certificates in the frozen state of the block account of the block user a, and certainly, the block chaining system will thaw 100 block chaining certificates in the frozen state of the block account of the block user B,
when the block user C3 initiates a unfreezing request for 300 block chaining certificates to the block chain system, the block chain system unfreezes 300 block chaining certificates in the frozen state of the block account of the block user a, and of course, the block chain system unfreezes 300 block chaining certificates in the frozen state of the block account of the block user B,
when the block user C4 initiates a thawing request for 90 block chaining certificates to the block chaining system, the block chaining system will thaw 90 block chaining certificates in the frozen state for the block account of the block user a, and certainly, the block chaining system will thaw 90 block chaining certificates in the frozen state for the block account of the block user B,
the holder of the block chain voucher cannot handle the block chain voucher in the frozen state, the handling comprises transaction, presentation and extraction, and the block chain voucher in the frozen state is listed as invalid by a block chain system.
Further, the three-party intelligent contract of the method is a computer executable code generated according to three-party intelligent transactions among the block user A, the block user B and the block users C.
Furthermore, in the method, a block user A, a block user B and a plurality of block users C form a private block chain network, and a three-party intelligent contract is deployed in the private block chain network.
Further, in the method of the present invention, the block chain system broadcasts and issues the transfer and collection information of the block accounts of the block users C and/or the unfreezing request information of the block chain certificate in the private block chain network.
Further, preferably, in the method of the present invention, the block chain system forms a chat group with the block user a, the block user B, and the plurality of block users C, and the chat group provides social communication among the block user a, the block user B, and the plurality of block users C.
In order to improve the system security, the real name registration authentication of the method comprises filling in a real name and an identity card number and providing a real photo; the real photo is consistent with the photo of the identity card, and the mobile phone number corresponds to real-name information.
In addition, the real-name registration authentication also comprises the step of providing a handwritten signature by the user, wherein the handwritten signature of the user is an electronic handwritten track of the user name formed by the user through a terminal touch screen, and the information confirmation is completed through the handwritten signature.
Further, the nodes of the private blockchain network record transaction information in the form of blocks respectively.
Example 2
The embodiment of the invention also provides a block chain system, which comprises a plurality of block chain network nodes, wherein each block chain network node can perform point-to-point communication and/or transaction with any other block chain network node;
the block chain system comprises at least one private block chain network; the private block chain network comprises a first block network node, a second block network node and a plurality of third block network nodes, and the private block chain network deploys a three-party intelligent contract and executes a three-party intelligent transaction behavior; the three-party intelligent trading behavior is a step of a trading method of a blockchain three-party intelligent contract.
The transaction method of the blockchain three-party intelligent contract is the same as that in embodiment 1, and the embodiment of the invention is not described herein again.
The block chain system broadcasts and releases the three-party transaction information in the whole network, records the related information in a block mode, and can store data in a distributed storage mode, so that the characteristics that the related data is real, effective and cannot be falsified are ensured.
Example 3
The embodiment of the invention provides a transaction method of a blockchain three-party intelligent contract, which is applied to a blockchain system as shown in figure 3; the block chain system comprises a plurality of block users, and the block users are subjected to real-name registration authentication through the block chain system; the block user is provided with a block account for managing account balance and/or block link certificate of the block user; the plurality of block users comprise a block user A, a block user B and at least one block user C;
the block chain three-party intelligent contract trading method comprises the following steps:
(1) the block user A sends transaction request information for acquiring 200 block link certificates from the block user B to the block chain system; the transaction request information comprises 200 blockchain pass certificates required by the block user A and the legal currency type of the account balance of the block user A is dollars; the legal currency types of the account balance of the block user B comprise dollars, RMB and port currency;
(2) the blockchain system intelligently matches a plurality of block users C (the block users C are block user C1, block user C2 and block user C3), pushes the block users C to block user B, forms a three-party transaction relationship among the block user A, the block user B, the block user C1, C2 and C3 and deploys three-party intelligent contracts;
the block user A has an association relationship with the block users C1, C2 and C3, preferably, the block users are in a co-worker relationship with the block user A, namely, the block users C1, C2 and C3 mark the block user A as a co-worker relationship, the block user A marks the block user C1, C2 and C3 as a co-worker relationship, and the block users C wait to convert a certain number of block chain certificates into second equivalent coins; the legal currency type of the account balance of the block user C1 is a Hongkong currency, and 22 block link certificates are to be transferred for the Hongkong currency with the same value as the 22 block link certificates; the legal type of account balance for blockuser C2 is dollars, which is to transfer 31 blockchain certificates in exchange for dollars worth of the 31 blockchain certificates; the legal type of account balance for blockchain user C3 is renminbi, which wants to transfer 150 blockchain passes in exchange for renminbi having the same value as the 150 blockchain passes.
(3) The block user A transfers the dollar of the first amount of the account balance of the block account to the account balance of the block user B to trigger the automatic execution of the three-party intelligent contract; the value of the 200 blockchain passes equates to dollars in a first amount; preferably, the blockchain system publishes the three-party transaction information.
(4) The block chain system immediately transfers 200 block chain pass certificates of the block account of the block user B to the block account of the block user A and freezes the block chain pass certificates;
(5) the block user B transfers the port coins with the corresponding amount of the account balance of the block account into the account balance of a block user C1, wherein the port coins with the corresponding amount are 22 port coins with the same block link pass-certificate value, and the block chain system immediately transfers the 22 block link pass-certificates of the block account of the block user C1 into the block account of the block user B and freezes the block link pass-certificates;
block user B transfers the corresponding dollar amount of the account balance of his block account to the account balance of block user 31, where the corresponding dollar amount is the equivalent dollar of 31 blockchain passcertificates, and the blockchain system immediately transfers and freezes the 31 blockchain passcertificates of the block account of Block user C2 to the block account of Block user B;
the block user B transfers the RMB with the corresponding amount of the account balance of the block account to the account balance of a block user C3, wherein the RMB with the corresponding amount is the RMB with 150 block chains with the same certification passing value, and the block chain system immediately transfers the 150 block chains of the block account of the block user C3 to the block account of the block user B for certification and freezing;
(6) once the blockchain user C initiates a unfreezing request of the corresponding number of blockchain general certificates to the blockchain system, the blockchain system unfreezes the corresponding number of blockchain general certificates of the blockchain account of the blockchain user a.
In the embodiment of the present invention, at the first time, the block user C1 initiates a thawing request for 22 block chain certificates to the block chain system, and then the block chain system thaws 22 block chain certificates in the frozen state of the block account of the block user a, and certainly, the block chain system thaws 22 block chain certificates in the frozen state of the block account of the block user B;
at the second moment, the blockchain user C2 initiates a thawing request for 31 blockchain general certificates to the blockchain system, and then the blockchain system thaws 31 blockchain general certificates in the frozen state of the blockchain account of the blockchain user a, and certainly, the blockchain system thaws 31 blockchain general certificates in the frozen state of the blockchain account of the blockchain user B;
at the third moment, the blockchain user C3 initiates a thawing request of 150 blockchain general certificates to the blockchain system, and then the blockchain system thaws 147 blockchain general certificates in the frozen state of the blockaccount of the blockchain user a, and certainly, the blockchain system thaws 150 blockchain general certificates in the frozen state of the blockchain account of the blockchain user B;
the holder of the block chain voucher cannot handle the block chain voucher in the frozen state, the handling comprises transaction, presentation and extraction, and the block chain voucher in the frozen state is listed as invalid by a block chain system.
The blockchain voucher is subjected to unfreezing treatment by a blockchain system, and a blockchain voucher holder can handle the blockchain voucher, wherein the handling comprises transaction, presentation and extraction.
In the invention, the extraction is that the block chain voucher is valuable, and the exchange of the legal currency can be carried out through a block system to extract the legal currency with the value of the block chain voucher; the transaction refers to that the block link certificate can be transferred between block users, namely, the equivalent transaction is carried out in a selling and buying mode.
Further, the three-party intelligent contract of the method is a computer executable code generated according to three-party intelligent transactions among the block user A, the block user B and the block users C.
Furthermore, in the method, a block user A, a block user B and a plurality of block users C form a private block chain network, and a three-party intelligent contract is deployed in the private block chain network.
Further, in the method of the present invention, the block chain system broadcasts and issues the transfer and collection information of the block accounts of the block users C and/or the unfreezing request information of the block chain certificate in the private block chain network.
Further, preferably, in the method of the present invention, the block chain system forms a chat group with the block user a, the block user B, and the plurality of block users C, and the chat group provides social communication among the block user a, the block user B, and the plurality of block users C.
In order to improve the system security, the real name registration authentication of the method comprises filling in a real name and an identity card number and providing a real photo; the real photo is consistent with the photo of the identity card, and the mobile phone number corresponds to real-name information.
In addition, the real-name registration authentication also comprises the step of providing a handwritten signature by the user, wherein the handwritten signature of the user is an electronic handwritten track of the user name formed by the user through a terminal touch screen, and the information confirmation is completed through the handwritten signature.
Further, the nodes of the private blockchain network record transaction information in the form of blocks respectively.
The above description describes preferred embodiments of the invention, but it should be understood that the invention is not limited to the above embodiments, and should not be viewed as excluding other embodiments. Modifications made by those skilled in the art in light of the teachings of this disclosure, which are well known or are within the skill and knowledge of the art, are also to be considered as within the scope of this invention.
Claims (10)
1. A transaction method of a block chain three-party intelligent contract is characterized in that,
the block chain three-party intelligent contract transaction method is applied to a block chain system; the block chain system comprises a plurality of block users; the block user is provided with a block account for managing account balance and/or block link certificate of the block user; the plurality of block users comprise a block user A, a block user B and at least one block user C;
the block chain three-party intelligent contract trading method comprises the following steps:
(1) the block user A sends transaction request information for obtaining a block link pass-certificate from a block user B to a block chain system;
the transaction request information comprises a first quantity of block chain certificates required by the block user A and a legal coin type of account balance of the block user A;
the block chaining certification is a circulated encrypted digital rights certification; the legal type of the account balance of the block user A comprises a first legal currency, and the legal type of the account balance of the block user B comprises a first legal currency and a second legal currency;
(2) the block chain system is intelligently matched with a plurality of block users C and pushed to a block user B, and a three-party transaction relation is formed among the block user A, the block user B and the block users C and a three-party intelligent contract is deployed;
there is an association relationship between the block user a and the block users C,
the block user C is to exchange a certain number of block chain certificates into an equivalent second legal currency; the sum of the number of block chain certificates to be exchanged by the plurality of block users C is greater than or equal to a first number; the legal currency type of the account balance of the block user C comprises a second legal currency;
(3) the block user A transfers the first legal currency of the first amount of the account balance of the block account to the account balance of the block user B to trigger automatic execution of the three-party intelligent contract; the value of the first number of block chain certificates is equal to a first legal currency of a first amount;
(4) the block chain system immediately transfers the first quantity of block chain general certificates of the block accounts of the block user B to the block account of the block user A and freezes the block chain general certificates;
(5) the block user B transfers the second legal money with the corresponding amount of the account balance of the block account to the account balances of the block users C respectively, and the block chain system immediately transfers the corresponding amount of block chain general certificates of the block accounts of the block users C to the block account of the block user B respectively and freezes the block chain general certificates;
the value of the corresponding number of block chain certificates is equal to the value of the corresponding amount of the second legal tender;
(6) once the blockchain user C initiates a unfreezing request of the corresponding number of blockchain general certificates to the blockchain system, the blockchain system unfreezes the corresponding number of blockchain general certificates of the blockchain account of the blockchain user a.
2. The method of trading a blockchain three-party smart contract according to claim 1,
the holder of the block chain voucher cannot handle the block chain voucher in the frozen state, the handling comprises transaction, presentation and extraction, and the block chain voucher in the frozen state is listed as invalid by a block chain system.
3. The method of trading a blockchain three-party smart contract according to claim 1,
the three-party intelligent contract is computer executable codes generated according to three-party intelligent transactions among the block user A, the block user B and the block users C.
4. The method of trading a blockchain three-party smart contract according to claim 1,
the block user A, the block user B and the block users C form a private block chain network, and a three-party intelligent contract is deployed in the private block chain network.
5. The method of trading in a blockchain three-party smart contract of claim 4,
and the block chain system broadcasts and releases the transfer and collection information of the block accounts of the block users C and/or the unfreezing request information of the block chain general certificate in the private block chain network.
6. The method of trading in a blockchain three-party smart contract of claim 4,
the block chain system enables a block user A, a block user B and a plurality of block users C to form a chat group, and the chat group is used for social communication among the block user A, the block user B and the block users C.
7. The method of trading a blockchain three-party smart contract according to claim 1,
the block user performs real-name registration authentication through a block chain system, and the real-name registration authentication comprises filling in a real name and an identity card number and providing a real photo.
8. The method of trading in a blockchain three-party smart contract of claim 7,
the real-name registration authentication also comprises the step of providing a handwritten signature by a user, wherein the handwritten signature of the user is an electronic handwritten track of the user name formed by the user through a terminal touch screen.
9. The method of trading in a blockchain three-party smart contract of claim 4,
the nodes of the private blockchain network record transaction information in the form of blocks respectively.
10. A block chain system is provided, wherein,
the blockchain system comprises a plurality of blockchain network nodes, and each blockchain network node can perform point-to-point communication and/or transaction with any other blockchain network node;
the block chain system comprises at least one private block chain network; the private block chain network comprises a first block network node, a second block network node and a plurality of third block network nodes, and the private block chain network deploys a three-party intelligent contract and executes a three-party intelligent transaction behavior; the three-party smart trading activity is the step of executing a trading method of a blockchain three-party smart contract according to any one of claims 1 to 9.
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| CN111598569B (en) * | 2020-05-21 | 2023-09-08 | 昆明大棒客科技有限公司 | Tree block chain expansion method and device |
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