WO2022082360A1 - Système de transfert d'actifs numériques - Google Patents

Système de transfert d'actifs numériques Download PDF

Info

Publication number
WO2022082360A1
WO2022082360A1 PCT/CN2020/121885 CN2020121885W WO2022082360A1 WO 2022082360 A1 WO2022082360 A1 WO 2022082360A1 CN 2020121885 W CN2020121885 W CN 2020121885W WO 2022082360 A1 WO2022082360 A1 WO 2022082360A1
Authority
WO
WIPO (PCT)
Prior art keywords
asset
digital
digital asset
blockchain
blockchain system
Prior art date
Application number
PCT/CN2020/121885
Other languages
English (en)
Chinese (zh)
Inventor
鲜丹
郭玮
於雷
刘良辉
Original Assignee
威富通科技有限公司
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 威富通科技有限公司 filed Critical 威富通科技有限公司
Priority to PCT/CN2020/121885 priority Critical patent/WO2022082360A1/fr
Priority to CN202080002607.7A priority patent/CN112513908A/zh
Publication of WO2022082360A1 publication Critical patent/WO2022082360A1/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION 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
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/389—Keeping log of transactions for guaranteeing non-repudiation of a transaction
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION 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
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/40—Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
    • G06Q20/401—Transaction verification
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION 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
    • G06Q40/00—Finance; Insurance; Tax strategies; Processing of corporate or income taxes
    • G06Q40/04—Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange

Definitions

  • the present application relates to the field of computer technology, in particular to a digital asset transfer system.
  • Digital assets include digital gift cards, stored value cards, membership cards, coupons, points, etc.
  • the transfer of digital assets mainly adopts the method of offline file transfer. Specifically, when the digital asset belonging to A is to be transferred to B, A puts the asset number and asset password of the digital asset to which it belongs into a file, encrypts the file, and then sends the file to B. After obtaining the file, B decrypts the file, obtains the asset number and asset password of the digital asset in the file, and also obtains the ownership of the digital asset.
  • This application provides a digital asset transfer system that helps to clearly confirm the ownership of digital assets.
  • a first aspect provides a digital asset transfer system
  • the digital asset transfer system includes a business system and a blockchain system
  • the business system is used to generate digital assets
  • the blockchain system is used to set all The attribute information of the digital asset, the digital asset and the attribute information of the digital asset are stored in the blockchain configured by the blockchain system, and the attribute information of the digital asset includes the asset attribution and asset transfer time;
  • the business system is used to transfer the digital asset;
  • the blockchain system is used to update the attribute information of the digital asset according to the transfer situation of the digital asset, and store the updated attribute information in the the blockchain.
  • a computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being executed by the processor When realizing the operations performed by the above-mentioned digital asset transfer system.
  • a computer-readable storage medium where a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, the operations performed by the above-mentioned digital asset transfer system are implemented.
  • a computer program product comprising instructions which, when run on a computer, cause the computer to perform the operations performed by the digital asset transfer system described above.
  • the digital asset transfer system includes a business system and a blockchain system.
  • the blockchain system can store the digital assets and their attribute information generated by the business system to the blockchain configured by the blockchain system.
  • the blockchain system can continuously update the attribute information of the digital asset and store it in the blockchain according to the transfer situation of the digital asset. Since the attribute information of the digital asset includes asset ownership and asset transfer time, the transfer process of the digital asset is recorded in the blockchain configured by the blockchain system. Due to the immutability of the blockchain, the ownership of the digital asset can be clearly confirmed according to the transfer process of the digital asset recorded in the blockchain.
  • FIG. 1 is a schematic structural diagram of a blockchain system provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a blockchain provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a process for generating a block provided by an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a digital asset transfer system provided by an embodiment of the present application.
  • Fig. 5 is an operation flow chart of a digital asset transfer system provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of another digital asset transfer system provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of interaction between a business system and a blockchain system provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a computer device provided by an embodiment of the present application.
  • FIG. 1 is a schematic structural diagram of a blockchain system provided by an embodiment of the present application.
  • the blockchain system 100 refers to a system for sharing data between nodes.
  • the blockchain system 100 may include multiple nodes 101 , and multiple nodes 101 may refer to the system in the blockchain system 100 . each client.
  • Each node 101 can receive input information during normal work, and maintain shared data within the blockchain system 100 based on the received input information.
  • an information connection may exist between each node 101 in the blockchain system 100, and information transmission may be performed between the nodes 101 through the information connection.
  • any node 101 in the blockchain system 100 receives input information
  • other nodes 101 in the blockchain system 100 obtain the input information according to the consensus algorithm, and store the input information as data in the shared data , so that the data stored on all nodes 101 in the blockchain system 100 are consistent.
  • Each node 101 in the blockchain system 100 has a corresponding node identifier, and each node 101 in the blockchain system 100 can store the node identifiers of other nodes 101 in the blockchain system 100, In order to subsequently broadcast the generated block to other nodes 101 in the blockchain system 100 according to the node identifiers of other nodes 101 .
  • Each node 101 may maintain a node identification list, and store the node name and the node identification in the node identification list correspondingly.
  • the node identification can be IP (Internet Protocol, Internet Protocol) address and any other information that can be used to identify the node 101 .
  • Each node 101 in the blockchain system 100 stores an identical blockchain.
  • the blockchain consists of multiple blocks.
  • the founding block includes a block header and a block body.
  • the block header stores the input information feature value, version number, timestamp and difficulty value.
  • the block body stores Input information;
  • the next block of the genesis block takes the genesis block as the parent block, the next block also includes the block header and the block body, and the block header stores the input information characteristic value of the current block, the parent block's
  • the block header feature value, version number, timestamp, and difficulty value, and so on make the block data stored in each block in the blockchain associated with the block data stored in the parent block, ensuring that Security of the information entered in the block.
  • the node 101 where the blockchain is located receives the input information, it verifies the input information, and after the verification is completed, the input information is stored in the memory pool , and update the hash tree used to record the input information; after that, update the update timestamp to the time when the input information was received, and try different random numbers, and perform the eigenvalue calculation multiple times, so that the calculated eigenvalues can be Satisfy the following formula:
  • SHA256 is the eigenvalue algorithm used to calculate the eigenvalue
  • version (version number) is the version information of the relevant block protocol in the blockchain
  • prev_hash is the block header eigenvalue of the parent block of the current block
  • merkle_root is the input information
  • the node 101 where the blockchain is located sends the newly generated blocks to the other nodes 101 in the blockchain system 100 where it is located according to the node identifiers of the other nodes 101 in the blockchain system 100, and the other nodes 101 pair with each other.
  • the newly generated block is verified and added to the blockchain where it is stored after verification is complete.
  • the blockchain system 100 has computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm.
  • the blockchain system 100 is a distributed shared ledger and database, which has the characteristics of decentralization, non-tampering, full traces, traceability, collective maintenance, openness and transparency, etc. These features ensure the shared openness, authenticity, integrity, security and reliability of the blockchain.
  • FIG. 4 is a schematic structural diagram of a digital asset transfer system provided by an embodiment of the present application.
  • the digital asset transfer system may include a business system 401 and a blockchain system 402 .
  • the business system 401 can realize the generation and transfer of digital assets, and the transfer of digital assets can include distribution, sale, and the like.
  • the blockchain system 402 may be the blockchain system 100 described in the embodiments of FIGS. 1-3 above.
  • Step 501 The business system 401 generates digital assets.
  • the business system 401 can generate digital assets belonging to the business system 401, that is, the business system 401 owns the ownership of the digital assets.
  • the digital assets may include digital gift cards, stored-value cards, membership cards, coupons, points, etc., which are not uniquely limited in this embodiment of the present application.
  • the digital asset may consist of data such as asset number, asset value, and asset validity period, and the digital asset may not contain an asset password.
  • Step 502 the blockchain system 402 sets the attribute information of the digital asset, and stores the digital asset and the attribute information of the digital asset in the blockchain configured by the blockchain system 402 .
  • the attribute information of the digital asset may include the asset ownership and asset transfer time of the digital asset, and further, may also include the asset status of the digital asset, and the like.
  • the blockchain system 402 can set the initial attribute information of the digital asset, specifically the initial asset ownership and asset transfer time of the digital asset, and further, can also set the initial digital asset. Asset status.
  • the blockchain system 402 when the blockchain system 402 stores the digital asset and the attribute information of the digital asset in the blockchain configured by the blockchain system 402, the blockchain system 402 can store the digital asset and the attribute information of the digital asset based on the digital asset and the attribute information of the digital asset. Generate a block and add the block to the configured blockchain.
  • the blockchain system 402 can upload the digital asset and the attribute information of the digital asset on the chain according to the smart contract, that is, generate a block storing the digital asset and the attribute information of the digital asset according to the smart contract, and store the block. added to the shared blockchain. In this way, the digital asset and the attribute information of the digital asset cannot be tampered with.
  • Step 503 The business system 401 transfers the digital asset.
  • the digital asset transaction proceeds, the digital asset will be continuously transferred.
  • the business system 401 can distribute, sell, etc. the digital asset to change the ownership of the digital asset.
  • Step 504 The blockchain system 402 updates the attribute information of the digital asset according to the transfer situation of the digital asset, and stores the updated attribute information in the blockchain.
  • the blockchain system 402 can update the attribute information of the digital asset and store it in the blockchain.
  • the blockchain system 402 when the blockchain system 402 stores the updated attribute information in the blockchain, the blockchain system 402 can generate a block according to the updated attribute information, and add the block to the configured blockchain .
  • the blockchain system 402 can upload the updated attribute information on the chain according to the smart contract, that is, generate a block storing the updated attribute information according to the smart contract, and add the block to the shared blockchain. In this way, the updated attribute information cannot be tampered with.
  • the blockchain system 402 stores the relevant information (including but not limited to attribute information) of the digital asset to the blockchain, the stored information can be associated with the digital asset identifier, so that the subsequent information can be The digital asset identifier obtains the relevant information of the digital asset from the blockchain.
  • the digital asset identifier is used to uniquely identify the digital asset, for example, the digital asset identifier may be the asset number of the digital asset, etc., which is not uniquely limited in this embodiment of the application.
  • the digital asset transfer system includes a business system 401 and a blockchain system 402 .
  • the blockchain system 402 can store the digital assets generated by the business system 401 and their attribute information in the blockchain configured by the blockchain system 402 .
  • the blockchain system 402 can continuously update the attribute information of the digital asset and store it in the blockchain according to the transfer situation of the digital asset. Since the attribute information of the digital asset includes asset ownership and asset transfer time, the transfer process of the digital asset is recorded in the blockchain configured by the blockchain system 402 . Due to the immutability of the blockchain, the ownership of the digital asset can be clearly confirmed according to the transfer process of the digital asset recorded in the blockchain.
  • the business system 401 may be a server cluster composed of multiple servers. Referring to FIG. 6 , the business system 401 may include an asset issuance server 4011 , an asset distribution server 4012 and a distribution server 4013 .
  • the interaction process between the business system 401 and the blockchain system 402 may be as shown in FIG. 7 .
  • the interaction process between the asset issuing server 4011 and the blockchain system 402 may include the following steps:
  • Step 701 The asset issuing server 4011 generates a digital asset, and calls the smart contract asset initialization interface to send the first interface message carrying the digital asset to the blockchain system 402.
  • the asset issuing server 4011 is the initial owner of the digital asset.
  • the first interface message can be JSON (JavaScript Object Notation, JavaScript Object Notation) format message.
  • JSON JavaScript Object Notation, JavaScript Object Notation
  • the first interface packet may also be a packet in other formats, which is not uniquely limited in this embodiment of the present application.
  • the asset issuing server 4011 can also connect to the blockchain system 402, and then call the smart contract asset initialization interface to send the first interface message to the blockchain system 402.
  • the asset issuance server 4011 can send a digital certificate to the blockchain system 402; the blockchain system 402 can check the validity of the digital certificate when receiving the digital certificate sent by the asset issuance server 4011, and the digital certificate In the case of passing the legality check, a verification success notification message is returned to the asset issuance server 4011; the asset issuance server 4011 can call the smart contract asset initialization interface when receiving the verification success notification message returned by the blockchain system 402 to Send the first interface message to the blockchain system 402 .
  • the digital certificate (Digital Certificate) may be issued and approved by the blockchain system 402 , that is, it may be obtained from the blockchain system 402 .
  • the blockchain system 402 can perform a hash operation on the public key of the asset issuing server 4011 according to a hash algorithm to obtain a digest of the public key of the asset issuing server 4011, and then use its own private key to pair the assets according to the encryption algorithm.
  • the digest of the public key of the issuing server 4011 is encrypted to obtain encrypted information.
  • the blockchain system 402 can issue the hash algorithm, the encryption algorithm, the public key of the asset issuance server 4011, and the encrypted information to the asset issuance server 4011 as a digital certificate of the asset issuance server 4011.
  • the operation of verifying the validity of the digital certificate may be: the blockchain system 402 receives the digital certificate sent by the asset issuance server 4011.
  • the blockchain system 402 receives the digital certificate sent by the asset issuance server 4011.
  • the encryption algorithm contained in the digital certificate use your own public key to decrypt the encrypted information contained in the digital certificate to obtain the first information; according to the hash algorithm contained in the digital certificate, the digital certificate
  • the public key of the asset issuance server 4011 contained in the Hash operation is performed to obtain the second information; if the first information is the same as the second information, it can be determined that the validity of the digital certificate has passed; If the information is different, it can be determined that the validity verification of the digital certificate fails.
  • the blockchain system 402 can determine that the identity of the asset issuing server 4011 is legal when the legality verification of the digital certificate is passed, and can return a verification success notification message to the asset issuing server 4011 . After the asset issuing server 4011 receives the verification success notification message, it is successfully connected to the blockchain system 402 .
  • the blockchain system 402 can determine that the identity of the asset issuing server 4011 is illegal, and can return a verification failure notification message to the asset issuing server 4011; the asset issuing server 4011 When receiving the verification failure notification message returned by the blockchain system 402, it is confirmed that the connection with the blockchain system 402 has failed. At this time, the asset issuing server 4011 can directly end the operation or try to reconnect to the blockchain system 402.
  • Step 702 When receiving the first interface message, the blockchain system 402 sets the attribute information of the digital asset, and stores the digital asset and the attribute information of the digital asset in the blockchain.
  • the blockchain system 402 When the blockchain system 402 receives the first interface message, it can first verify the first interface message; if the first interface message is successfully verified, then set the attribute information of the digital asset, and set the attribute information of the digital asset.
  • the digital asset and the attribute information of the digital asset are stored in the blockchain; in the case that the first interface message verification fails, an error reminder message is returned to the asset issuing server 4011, and the operation is ended, and the asset issuing server 4011 receives the
  • the smart contract asset initialization interface can be called again to send the first interface message to the blockchain system 402 .
  • the operation performed by the blockchain system 402 for verifying the first interface message is similar to the operation performed by a device in the related art for verifying a message, which is not described in detail in this embodiment of the present application.
  • the asset attribution of the digital asset can be set as the asset distribution server identifier
  • the asset transfer time of the digital asset can be set as the receiving time of the first interface message
  • the The asset status of a digital asset is pending sale.
  • the asset distribution server identifier is used to uniquely identify the asset distribution server 4012 .
  • the asset distribution server identifier may be the UUID (Universally Unique Identifier, Universal Unique Identifier), MAC (Media Access Control, Media Access Control) address, IP address, or factory serial number of the asset distribution server 4012, and the embodiment of the present application There is no unique limitation on this.
  • the asset distribution server 4011 uses the asset distribution server 4012 to sell the digital assets to which the asset distribution server 4011 belongs, so the blockchain system 402 can directly set the asset attribution of the digital assets generated by the asset distribution server 4011 to asset distribution Server ID.
  • the asset distribution server identification may be pre-stored in the blockchain system 402 .
  • the blockchain system 402 can also send the digital asset to the asset distribution server 4012 according to the asset distribution server identifier, so that the asset distribution server 4012 can follow up.
  • the digital asset can be sold.
  • the operation of the blockchain system 402 sending the digital asset to the asset distribution server 4012 according to the asset distribution server identifier is similar to the operation of one device sending information to the other device according to the identifier of the other device in the related art.
  • the example does not elaborate on this.
  • the blockchain system 402 can call the distribution interface according to the identifier of the asset distribution server to send the message carrying the digital asset to the asset distribution server 4012 .
  • smart contracts are based on the trusted and immutable data of the blockchain, and can automatically execute some pre-defined rules and terms.
  • smart contracts are stored in blocks of the blockchain in the form of on-chain code.
  • the server can call smart contracts through the contract interface to perform specific operations.
  • the contract logic can be executed, so that the asset issuing server 4011 sends the first interface message to the blockchain system 402, the blockchain system 402 sets the attribute information of the digital asset, The blockchain system 402 stores the digital assets and their attribute information to the blockchain for this series of operations.
  • the interaction process between the asset distribution server 4012 and the blockchain system 402 may include the following steps:
  • Step 703 When the asset distribution server 4012 detects the distribution operation for the digital asset, it calls the smart contract asset distribution interface to send the second interface message carrying the digital asset and the distribution server identifier to the blockchain system 402.
  • the asset distribution server 4012 is used to distribute digital assets generated by the asset distribution server 4011 .
  • the distribution operation for the digital asset refers to an operation of transferring the digital asset to the distribution server 4013 .
  • the asset distribution server 4012 detects the distribution operation, it can obtain the distribution server identifier for uniquely identifying the distribution server 4013 .
  • the distribution server identifier may be the UUID, MAC address, IP address, or factory serial number of the distribution server 4013, which is not uniquely limited in this embodiment of the present application.
  • the second interface message may be a message in JSON format.
  • the second interface packet may also be a packet in other formats, which is not uniquely limited in this embodiment of the present application.
  • the asset distribution server 4012 can also connect to the blockchain system 402, and then call the smart contract asset distribution interface to send the second interface message to the blockchain system 402.
  • the asset distribution server 4012 can send the digital certificate to the blockchain system 402; the blockchain system 402 can check the validity of the digital certificate when receiving the digital certificate sent by the asset distribution server 4012, and in the digital certificate In the case of passing the legality verification, a verification success notification message is returned to the asset distribution server 4012; the asset distribution server 4012 can call the smart contract asset distribution interface when receiving the verification success notification message returned by the blockchain system 402 to Send the second interface message to the blockchain system 402 .
  • the blockchain system 402 can perform a hash operation on the public key of the asset distribution server 4012 according to a hash algorithm to obtain a digest of the public key of the asset distribution server 4012, and then use its own private key to pair the assets according to the encryption algorithm.
  • the digest of the public key of the distribution server 4012 is encrypted to obtain encrypted information.
  • the blockchain system 402 can issue the hash algorithm, the encryption algorithm, the public key of the asset distribution server 4012, and the encrypted information to the asset distribution server 4012 as a digital certificate of the asset distribution server 4012.
  • the operation of the blockchain system 402 to verify the legality of the digital certificate sent by the asset distribution server 4012 is similar to the operation of the blockchain system 402 to verify the legality of the digital certificate sent by the asset distribution server 4011. This is not repeated in the application embodiment.
  • the blockchain system 402 can determine that the identity of the asset distribution server 4012 is legal when the legality verification of the digital certificate is passed, and can return a verification success notification message to the asset distribution server 4012 . After the asset distribution server 4012 receives the verification success notification message, it is successfully connected to the blockchain system 402 .
  • the blockchain system 402 can determine that the identity of the asset distribution server 4012 is illegal, and can return a verification failure notification message to the asset distribution server 4012; the asset distribution server 4012 When the verification failure notification message returned by the blockchain system 402 is received, it is confirmed that the connection with the blockchain system 402 has failed, and the operation can be ended directly or the blockchain system 402 can be tried to be reconnected.
  • Step 704 When receiving the second interface message, the blockchain system 402 sends the digital asset to the distribution server 4013 according to the distribution server identifier, and updates the digital asset when receiving the first confirmation response returned by the distribution server 4013 The asset belonging to the distribution server identifier, update the asset transfer time of the digital asset to the reception time of the first confirmation response, and store the asset ownership and asset transfer time of the digital asset in the blockchain.
  • the blockchain system 402 When the blockchain system 402 receives the second interface message, it can first verify the second interface message; if the second interface message is successfully verified, it can then send the message to the distribution server 4013 according to the distribution server identifier. The digital asset; in the case that the verification of the second interface message fails, an error reminder message is returned to the asset distribution server 4012, and the operation is ended. When the asset distribution server 4012 receives the error reminder message, it can re-call the smart contract asset distribution interface to send the second interface message to the blockchain system 402 .
  • the operation performed by the blockchain system 402 to verify the second interface packet is similar to the operation performed by a certain device in the related art to verify a certain packet, which is not described in detail in this embodiment of the present application.
  • the operation of the blockchain system 402 sending the digital asset to the distribution server 4013 according to the identification of the distribution server is similar to the operation of one device sending information to the other device according to the identification of the other device in the related art. This is not explained in detail.
  • the blockchain system 402 can call the distribution interface according to the distribution server identifier to send the message carrying the digital asset to the distribution server 4013 .
  • the first confirmation response is used to confirm that the digital asset has been received.
  • the distribution server 4013 may return a first confirmation response to the blockchain system 402 after receiving the digital asset sent by the blockchain system 402 .
  • the blockchain system 402 can An error reminder message is sent to the asset distribution server 4012.
  • the asset distribution server 4012 receives the error reminder message, it can re-call the smart contract asset distribution interface to send the second interface message to the blockchain system 402.
  • the contract logic can be executed, so that the asset distribution server 4012 sends the second interface message to the blockchain system 402, and the blockchain system 402 sends the digital asset to the distribution server 4013. And when receiving the first confirmation response returned by the distribution server 4013, this series of operations of updating the attribute information of the digital asset and storing it in the blockchain.
  • the interaction process between the distribution server 4013 and the blockchain system 402 may include the following steps:
  • Step 705 When the distribution server 4013 detects the sale operation for the digital asset, it calls the smart contract asset sale interface to send the third interface message carrying the digital asset and the user ID to the blockchain system 402.
  • the distribution server 4013 is a secondary distribution organization of digital assets, and can purchase digital assets from the asset distribution server 4012 .
  • the selling operation for the digital asset refers to the operation of selling the digital asset to the user.
  • the distribution server 4013 detects the selling operation, it can obtain the user ID used to uniquely identify the user who purchased the digital asset.
  • the user identifier may be the user's phone number, instant messaging account, etc., which is not uniquely limited in this embodiment of the present application.
  • the third interface message may be a message in JSON format.
  • the third interface packet may also be a packet in other formats, which is not uniquely limited in this embodiment of the present application.
  • the distribution server 4013 can also connect to the blockchain system 402, and then call the smart contract asset sale interface to send the third interface message to the blockchain system 402.
  • the distribution server 4013 can send a digital certificate to the blockchain system 402; the blockchain system 402 can check the validity of the digital certificate when receiving the digital certificate sent by the distribution server 4013, and the validity of the digital certificate In the case of passing the verification, a verification success notification message is returned to the distribution server 4013; the distribution can call the smart contract asset sale interface to the blockchain system 402 when receiving the verification success notification message returned by the blockchain system 402. Send the third interface packet.
  • the blockchain system 402 can perform a hash operation on the public key of the distribution server 4013 according to the hash algorithm to obtain a digest of the public key of the distribution server 4013, and then use its own private key to the distribution server 4013 according to the encryption algorithm.
  • the digest of the public key is encrypted to obtain the encrypted information.
  • the blockchain system 402 can issue the hash algorithm, the encryption algorithm, the public key of the distribution server 4013, and the encrypted information to the distribution server 4013 as the digital certificate of the distribution server 4013.
  • the operation of the blockchain system 402 to verify the legality of the digital certificate sent by the distribution server 4013 is similar to the operation of the blockchain system 402 to verify the legality of the digital certificate sent by the asset issuing server 4011. This application This embodiment is not repeated here.
  • the blockchain system 402 can determine that the identity of the distribution server 4013 is legal when the validity verification of the digital certificate is passed, and can return a verification success notification message to the distribution server 4013 . After the distribution server 4013 receives the verification success notification message, it is successfully connected to the blockchain system 402 .
  • the blockchain system 402 can determine that the identity of the distribution server 4013 is illegal when the validity verification of the digital certificate fails, and can return a verification failure notification message to the distribution server 4013; the distribution server 4013 receives the When the verification failure notification message returned by the blockchain system 402 confirms that the connection with the blockchain system 402 has failed, the operation can be terminated directly or the blockchain system 402 can be tried to be reconnected.
  • Step 706 When receiving the third interface message, the blockchain system 402 updates the attribute information of the digital asset, and stores the updated attribute information in the blockchain.
  • the blockchain system 402 When the blockchain system 402 receives the third interface message, it can first verify the third interface message; if the third interface message is successfully verified, then update the attribute information of the digital asset; When the third interface packet verification fails, an error reminder message is returned to the distribution server 4013, and the operation is ended. When the distribution server 4013 receives the error reminder message, it can re-call the smart contract asset sale interface to send the blockchain system 402 Send a third interface packet.
  • the operation performed by the blockchain system 402 to verify the third interface packet is similar to the operation performed by a certain device in the related art to verify a certain packet, which is not described in detail in this embodiment of the present application.
  • step 706 may be: when the blockchain system 402 receives the third interface message, send an asset sale notification message carrying the digital asset and the user ID to the asset issuance server 4011; the asset issuance server 4011 When receiving the asset sale notification message, send the digital asset and the asset password of the digital asset to the user terminal according to the user ID, and return a second confirmation response to the blockchain system 402; the blockchain system 402 receives During the second confirmation response, update the asset of the digital asset to be the user ID, update the asset transfer time of the digital asset to be the receiving time of the second confirmation response, update the asset status of the digital asset to be sold, and update the digital asset to be sold.
  • the asset ownership, asset transfer time and asset status are stored in the blockchain.
  • the asset issuing server identifier is used to uniquely identify the asset issuing server 4011 .
  • the asset issuance server identifier may be the UUID, MAC address, IP address, or factory serial number of the asset issuance server 4011, which is not uniquely limited in this embodiment of the present application.
  • the operation of the blockchain system 402 to send the asset sale notification message carrying the digital asset and the user identification to the asset issuance server 4011 according to the identification of the asset issuance server is related to the operation of one device to the other device according to the identification of the other device.
  • the operation of sending information by the device is similar, which is not described in detail in this embodiment of the present application.
  • the blockchain system 402 can call the issuance interface according to the identification of the asset issuance server to send an asset sale notification message carrying the digital asset and the user identification to the asset issuance server 4011 .
  • the operation of the asset issuing server 4011 sending the digital asset and the asset password of the digital asset to the user terminal according to the user identification is similar to the operation of a device in the related art sending certain information to the user terminal according to the user identification. This is not described in detail in the application examples.
  • the asset issuing server 4011 may send the digital asset and the asset password of the digital asset to the user terminal by means of a short message or an application message push according to the user identification.
  • the second confirmation response is used to confirm that the digital asset and its asset password have been sent to the user.
  • the asset issuing server 4011 may return a second confirmation response to the blockchain system 402 after sending the digital asset and its asset password to the user terminal.
  • the blockchain system 402 can send an error reminder message to the distribution server 4013.
  • the distribution server 4013 receives the error reminder message, it can re-call the smart contract asset sale interface to send the third interface message to the blockchain system 402. .
  • the contract logic can be executed, so that the distribution server 4013 sends the third interface message to the blockchain system 402, and the blockchain system 402 instructs the asset issuing server 4011 to send the message to the user.
  • the asset issuing server 4011 can also perform digital asset write-off, which may specifically include the following steps (1)-step (4).
  • the asset issuance server 4011 calls the smart contract asset verification interface to send the fourth interface message carrying the digital asset identifier to the blockchain system 402 .
  • the fourth interface message may be a message in JSON format.
  • the fourth interface packet may also be a packet in other formats, which is not uniquely limited in this embodiment of the present application.
  • the blockchain system 402 queries the latest asset status of the digital asset according to the digital asset identifier.
  • the blockchain system 402 When the blockchain system 402 receives the fourth interface message, it can first verify the fourth interface message; in the case that the fourth interface message is successfully verified, the digital asset can be queried according to the digital asset identifier. If the verification of the fourth interface message fails, return an error reminder message to the asset issuing server 4011, and end the operation. When the asset issuing server 4011 receives the error reminder message, it can re-call the smart contract asset core The pin interface is used to send the fourth interface message to the blockchain system 402 .
  • the operation performed by the blockchain system 402 for verifying the fourth interface message is similar to the operation performed by a device in the related art for verifying a message, which is not described in detail in this embodiment of the present application.
  • the blockchain system 402 sets the asset status of the digital asset to be written off, and sets the asset write-off time of the digital asset to the time of the fourth interface message. After receiving the time, store the asset status and asset write-off time of the digital asset in the blockchain, and return a write-off notification message to the asset issuing server 4011.
  • the operation of the blockchain system 402 to store the asset status and asset write-off time of the digital asset to the blockchain is similar to the operation of the above-mentioned blockchain system 402 to store the attribute information of the digital asset to the blockchain. This is not repeated in the application embodiment.
  • the blockchain system 402 when the asset status of the digital asset is to be sold, the blockchain system 402 generates an alarm reminder message, and sends the alarm reminder message to the asset issuance server 4011.
  • the smart contract asset write-off interface can be called again to send the fourth interface message to the blockchain system 402 .
  • the asset issuing server 4011 Since the asset issuing server 4011 has sent the digital asset and its asset password to the user terminal, the digital asset has been sold to the user. If the asset status of the digital asset recorded in the blockchain system 402 is to be sold at this time, it means that there is a problem with the sale of the digital asset, so the blockchain system 402 can send an alarm reminder message to the asset issuance server 4011 to remind the asset issuance server. 4011 There is a problem with the sale of this digital asset.
  • the asset issuing server 4011 When receiving the write-off notification message, the asset issuing server 4011 writes off the digital asset.
  • the asset issuing server 4011 can write off the digital asset.
  • the contract logic can be executed, so that the asset issuing server 4011 sends the fourth interface message to the blockchain system 402, and the blockchain system 402 sets the digital asset write-off Information and a write-off notification message are returned to the asset issuing server 4011, and the asset issuing server 4011 writes off the digital asset in this series of operations.
  • the digital asset transfer system is based on the blockchain architecture, which can realize that all digital asset transfer processes are recorded in the blockchain, which cannot be tampered with, so as to provide a public credibility certificate of the digital asset transfer relationship, It can greatly improve the efficiency of digital asset ownership confirmation.
  • the transfer of digital asset ownership is safe and reliable.
  • each digital asset transfer link is realized by calling the smart contract transaction interface, and the transfer information is recorded in the blockchain, the digital asset transaction results cannot be tampered with or denied, and the entire digital asset transfer process can be traced.
  • neither the asset distribution server 4012 nor the distribution server 4013 can obtain the asset password, so that the risk of password leakage can be eliminated.
  • the asset password only exists in the asset issuance server 4011 during the digital asset distribution process. Only when the digital asset is sold to the user, the asset password is sent to the user through the asset issuance server 4011, thereby ensuring the security of the digital asset to the greatest extent. In this way, the security and exclusivity of digital assets during the transfer process can be guaranteed.
  • the asset issuing server 4011 , the asset distribution server 4012 , and the distribution server 4013 in the business system 401 can all query the relevant information of digital assets from the blockchain system 402 .
  • the business system 401 can call the smart contract asset query interface to send the fifth interface message carrying the digital asset identifier to the blockchain system 402 .
  • the blockchain system 402 obtains all the information of the digital asset from the blockchain according to the digital asset identifier, and sends all the information of the digital asset to the business system 401 .
  • the fifth interface message may be a message in JSON format.
  • the fifth interface packet may also be a packet in other formats, which is not uniquely limited in this embodiment of the present application.
  • the blockchain system 402 When the blockchain system 402 receives the fifth interface message, it can first verify the fifth interface message; in the case of successful verification of the fifth interface message, the block chain system 402 can download the message from the blockchain according to the digital asset identifier. Obtain all the information of the digital asset; in the case that the fifth interface message verification fails, return an error reminder message to the business system 401, and end the operation, when the business system 401 receives the error reminder message, it can re-call the intelligent The contract asset query interface is used to send the fifth interface message to the blockchain system 402 .
  • the operation performed by the blockchain system 402 to verify the fifth interface packet is similar to the operation performed by a certain device in the related art to verify a certain packet, which is not described in detail in this embodiment of the present application.
  • the contract logic can be executed, so that the business system 401 sends the fifth interface message to the blockchain system 402, and the blockchain system 402 queries all the information of the digital asset and returns This series of operations for the business system 401 .
  • the business system 401 may also include a notary server, and the notary server, as an optional participant, may be responsible for notarization in the digital asset transaction.
  • the notary server can be used for notarization of digital asset transfer from asset issuing server 4011 to asset distribution server 4012, and can also be used for notarization of digital asset transfer from asset distribution server 4012 to distribution server 4013, and can also be used for notarization of digital asset transfer from asset distribution server 4013 to distribution server 4013. Notarization of user's digital asset transfer.
  • FIG. 8 is a schematic structural diagram of a computer device according to an embodiment of the present application.
  • the above-mentioned digital asset transfer system can be realized by the computer device 8 .
  • the computer device 8 includes: a processor 80, a memory 81, and a computer program 82 stored in the memory 81 and running on the processor 80.
  • the processor 80 executes the computer program 82, the above-mentioned embodiments are implemented. Operations performed by the digital asset transfer system.
  • Computer device 8 may be a general purpose or special purpose computer device.
  • the computer device 8 may be a server cluster composed of multiple servers.
  • FIG. 8 is only an example of the computer device 8, and does not constitute a limitation on the computer device 8. It may include more or less components than the one shown, or combine some components, or different components , for example, it may also include input and output devices, network access devices, and so on.
  • the processor 80 may be a central processing unit (Central Processing Unit, CPU), the processor 80 can also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application-specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf Programmable Gate Array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general-purpose processor may be a microprocessor or it may be any conventional processor.
  • the memory 81 may in some embodiments be an internal storage unit of the computer device 8 , such as a hard disk or memory of the computer device 8 .
  • the memory 81 may also be an external storage device of the computer device 8 in other embodiments, such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) equipped on the computer device 8 card, Flash Card, etc.
  • the memory 81 may also include both an internal storage unit of the computer device 8 and an external storage device.
  • the memory 81 is used to store an operating system, an application program, a boot loader (BootLoader), data, and other programs, such as program codes of computer programs, and the like.
  • the memory 81 can also be used to temporarily store data that has been output or is to be output.
  • a computer-readable storage medium is also provided, and a computer program is stored in the storage medium.
  • the computer program is executed by the processor, the operations performed by the digital asset transfer system in the above-mentioned embodiments are implemented.
  • the computer-readable storage medium may be a ROM (Read-Only Memory, read-only memory), RAM (Random Access Memory, random access memory), CD-ROM (Compact Disc) Read-Only Memory), magnetic tapes, floppy disks, and optical data storage devices, etc.
  • the computer-readable storage medium mentioned in this application may be a non-volatile storage medium, in other words, may be a non-transitory storage medium.
  • a computer program product comprising instructions that, when executed on a computer, cause the computer to perform the operations performed by the digital asset transfer system of the above-described embodiments.

Landscapes

  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Engineering & Computer Science (AREA)
  • Finance (AREA)
  • Physics & Mathematics (AREA)
  • Strategic Management (AREA)
  • General Business, Economics & Management (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Development Economics (AREA)
  • Economics (AREA)
  • Marketing (AREA)
  • Technology Law (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)

Abstract

L'invention concerne un système de transfert d'actifs numériques, qui appartient au domaine technique de computers. Le système de transfert d'actifs numériques comporte un système de service et un système de chaîne de blocs, le système de service étant utilisé pour générer des actifs numériques; le système de chaîne de blocs étant utilisé pour spécifier des informations d'attributs des actifs numériques et stocker les actifs numériques et les informations d'attributs des actifs numériques dans une chaîne de blocs configurée par le système de chaîne de blocs, et les informations d'attributs des actifs numériques comportant une propriété des actifs et un temps de transfert des actifs; le système de service étant utilisé pour transférer les actifs numériques; et le système de chaîne de blocs étant utilisé pour mettre à jour les informations d'attributs des actifs numériques en fonction d'une situation de transfert des actifs numériques, et stocker des informations d'attributs mises à jour dans la chaîne de blocs. Le système peut enregistrer un processus de transfert des actifs numériques dans la chaîne de blocs configurée par le système de chaîne de blocs. Du fait de l'inviolabilité de la chaîne de blocs, la propriété des actifs numériques peut être clairement confirmée selon le processus de transfert des actifs numériques qui sont enregistrés dans la chaîne de blocs.
PCT/CN2020/121885 2020-10-19 2020-10-19 Système de transfert d'actifs numériques WO2022082360A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2020/121885 WO2022082360A1 (fr) 2020-10-19 2020-10-19 Système de transfert d'actifs numériques
CN202080002607.7A CN112513908A (zh) 2020-10-19 2020-10-19 数字资产转移系统

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/121885 WO2022082360A1 (fr) 2020-10-19 2020-10-19 Système de transfert d'actifs numériques

Publications (1)

Publication Number Publication Date
WO2022082360A1 true WO2022082360A1 (fr) 2022-04-28

Family

ID=74952797

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/121885 WO2022082360A1 (fr) 2020-10-19 2020-10-19 Système de transfert d'actifs numériques

Country Status (2)

Country Link
CN (1) CN112513908A (fr)
WO (1) WO2022082360A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116340897A (zh) * 2021-04-19 2023-06-27 支付宝(杭州)信息技术有限公司 一种基于区块链的数字资产处理方法及装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110178338A (zh) * 2016-08-24 2019-08-27 高阶公司 活动门票的数字证券化、模糊化、策略和商务
CN110633965A (zh) * 2019-09-20 2019-12-31 张嘉荣 点对点的资产映射和数字资产交易的方法及系统
CN111177275A (zh) * 2020-01-02 2020-05-19 肖光昱 基于区块链的管理方法、终端、装置及存储介质
CN111222841A (zh) * 2019-11-26 2020-06-02 腾讯科技（深圳）有限公司 一种基于区块链的数据分配方法及其设备、存储介质
CN111724146A (zh) * 2020-05-21 2020-09-29 梁伟 一种基于区块链的数字资产流转的方法及装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109598142B (zh) * 2018-12-05 2022-02-22 腾讯科技（深圳）有限公司 债权凭证生成方法、装置、电子设备及存储介质
CN110503416B (zh) * 2019-08-29 2023-08-22 腾讯科技（深圳）有限公司 数值转移方法、装置、计算机设备及存储介质
EP3695362A4 (fr) * 2019-09-11 2020-12-23 Alibaba Group Holding Limited Système et procédé de transfert d'actif numérique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110178338A (zh) * 2016-08-24 2019-08-27 高阶公司 活动门票的数字证券化、模糊化、策略和商务
CN110633965A (zh) * 2019-09-20 2019-12-31 张嘉荣 点对点的资产映射和数字资产交易的方法及系统
CN111222841A (zh) * 2019-11-26 2020-06-02 腾讯科技（深圳）有限公司 一种基于区块链的数据分配方法及其设备、存储介质
CN111177275A (zh) * 2020-01-02 2020-05-19 肖光昱 基于区块链的管理方法、终端、装置及存储介质
CN111724146A (zh) * 2020-05-21 2020-09-29 梁伟 一种基于区块链的数字资产流转的方法及装置

Also Published As

Publication number Publication date
CN112513908A (zh) 2021-03-16

Similar Documents

Publication Publication Date Title
TWI724391B (zh) 基於區塊鏈的節點管理方法和裝置
CN111144881B (zh) 对资产转移数据的选择性访问
US11720711B2 (en) System and method for interaction object management in a blockchain environment
CN110620810B (zh) 在区块链上的连续资产转移的非链接所有权
CN112840617B (zh) 用于管理区块链资源的方法和计算节点，计算机可读介质
US10523526B2 (en) System and method for managing services and licenses using a blockchain network
US20220382746A1 (en) Blockchain notification board storing blockchain resources
TW202022857A (zh) 基於區塊鏈的發票創建方法及裝置、電子設備
US20200074470A1 (en) Database configuration for asset transfers
TW202016817A (zh) 基於區塊鏈的交易處理方法及裝置、電子設備
US10922097B2 (en) Collaborative model execution
US11270017B2 (en) Selective exchange of transaction data
TWI776030B (zh) 基於區塊鏈的交易處理方法及裝置、電子設備
CN111241557B (zh) 基于区块链的服务请求方法及装置
CN111127021B (zh) 基于区块链的服务请求方法及装置
CN110471982B (zh) 基于区块链的数据处理方法和装置
WO2020037927A1 (fr) Procédé de transaction de chaîne de blocs négociable, appareil, dispositif et support d'informations
WO2019190394A1 (fr) Procédés de distribution de logiciel à travers un réseau et systèmes de distribution
WO2019142884A1 (fr) Dispositif de vérification de bloc, procédé de vérification de bloc et programme
CN113706313A (zh) 基于区块链的融资方法、系统及计算机可读存储介质
CN110941840B (zh) 一种数据处理方法、系统及终端
WO2021184642A1 (fr) Procédé et appareil de transaction basés sur une chaîne de blocs, dispositif électronique et support de stockage lisible
CN114331397B (zh) 信息处理方法、装置、电子设备和存储介质
WO2022082360A1 (fr) Système de transfert d'actifs numériques
WO2023185862A1 (fr) Procédé et système de calcul multipartite sur la base d'un système de chaîne de blocs

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20957949

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20957949

Country of ref document: EP

Kind code of ref document: A1