公开(公告)号：EP4459532A1

公开(公告)日：2024-11-06

申请号：EP22913953.0

申请日：2022-11-28

申请人： Digital Currency Institute, The People's Bank of China

发明人： MU, Changchun ,  DI, Gang ,  LV, Yuan ,  ZHAO, Xinyu ,  ZHANG, Zhan ,  CUI, Peidong ,  ZHANG, Mingming ,  PENG, Meiling ,  CHEN, Song

IPC分类号： G06Q20/36

摘要： Disclosed are a digital currency transaction method, apparatus and electronic device, and a computer-readable medium, which relate to the technical field of digital currencies. The method includes: receiving a transaction request in response to a connection to a digital currency wallet, and acquiring feature negotiation information from a hardware carrier of the digital currency wallet; determining a transaction type on a basis of the feature negotiation information; acquiring a deduction amount corresponding to the transaction request, and generating an interoperability-based transaction request on a basis of the deduction amount and the feature negotiation information in response to determining that the transaction type is an interoperability-based transaction; sending the interoperability-based transaction request to an interoperability platform, so as to invoke a corresponding operator interface by means of the interoperability platform to send the interoperability-based transaction request to a corresponding digital currency operator; and receiving deduction information generated after the digital currency operator executes deduction on a basis of the interoperability-based transaction request, and outputting the deduction information. Limitations of capacity and an algorithm capability of front-end currency string storage are solved

公开(公告)号：EP4451196A1

公开(公告)日：2024-10-23

申请号：EP22906586.7

申请日：2022-12-14

申请人： DIGITAL CURRENCY INSTITUTE, THE PEOPLE'S BANK OF CHINA

发明人： MU, Changchun ,  DI, Gang ,  LI, Honggang ,  LV, Yuan ,  QIAN, Youcai ,  ZHANG, Mingming ,  LIU, Jiequn ,  CHEN, Xuanhui ,  CHEN, Qingjie ,  HUANG, Wei ,  WANG, Huan

IPC分类号： G06Q40/04 ,  G06Q40/12

摘要： Disclosed in the disclosure are a reconciliation method, apparatus and system based on a blockchain, relating to the technical field of blockchains. A specific embodiment of the method includes: acquiring a batch hash value corresponding to a reconciliation batch transaction record fed onto the blockchain by an institution to be reconciled and a batch hash value corresponding to a reconciliation batch transaction record fed onto the blockchain by a transaction reconciliation platform respectively; performing first comparison on the batch hash values; notifying the institution and the transaction reconciliation platform to feed shard hash values corresponding to the reconciliation batch transaction record under the condition that a result of the first comparison shows inconsistence; acquiring an inconsistent shard by performing second comparison on the shard hash values; notifying the institution and the transaction reconciliation platform to feed record hash values onto the blockchain; acquiring an inconsistent transaction record by performing third comparison on the record hash values; and notifying the institution and the transaction reconciliation platform of the inconsistent transaction record. According to the embodiment, a storage space of a blockchain can be saved; reconciliation efficiency is greatly improved, and a reconciliation result cannot be tampered with; and the problem of data privacy on a chain is solved.

公开(公告)号：EP4358000A1

公开(公告)日：2024-04-24

申请号：EP22824009.9

申请日：2022-05-20

申请人： Digital Currency Institute, The People's Bank of China

发明人： MU, Changchun ,  DI, Gang ,  QIAN, Youcai ,  LV, Yuan ,  DU, Jinzhao ,  LI, Changli

IPC分类号： G06Q20/06 ,  G06Q20/28 ,  G06Q20/22 ,  G06Q20/02 ,  H04L9/00

CPC分类号： G06Q20/065 ,  G06Q20/223 ,  G06Q20/28 ,  H04L9/50 ,  H04L9/0894 ,  H04L9/3247 ,  H04L2209/5620130101 ,  G06Q20/102

摘要： The present invention relates to a digital currency-based payment method, platform and system, and a terminal, and relates to the technical field of computers. An implementation of the method includes: receiving a target payment request for a first digital currency in a frozen state, the first digital currency in the frozen state being generated based on a pre-payment request and a pre-configured pre-payment deposit smart contract; generating a second digital currency according to a target payment amount indicated by the target payment request, the first digital currency, and a pre-configured pre-payment verification smart contract; and sending the second digital currency to a first account corresponding to the first digital currency. The implementation improves the transaction security, and is conducive to protecting the rights and interests of a user.

公开(公告)号：EP4332791A1

公开(公告)日：2024-03-06

申请号：EP22794862.7

申请日：2022-04-25

申请人： DIGITAL CURRENCY INSTITUTE, THE PEOPLE'S BANK OF CHINA

发明人： MU, Changchun ,  LV, Yuan ,  QING, Sude ,  WANG, Yanhui ,  ZENG, Junwei ,  WU, Hao

IPC分类号： G06F16/906

摘要： The present disclosure relates to the technical field of computers. Disclosed are a method and apparatus for classifying a blockchain address. A specific implementation of the method includes: acquiring blockchain transaction information, where the blockchain transaction information indicates one or more transaction input addresses and one or more transaction output addresses; constructing a transaction bipartite graph corresponding to the blockchain transaction information; obtaining, according to the transaction bipartite graph and a graph embedding algorithm, address vectors respectively corresponding to the one or more transaction input addresses and the one or more transaction output addresses; and using the address vectors as inputs of an address classifier, so as to classify the one or more transaction input addresses and/or the one or more transaction output addresses by the address classifier. By means of the implementation, the accuracy of blockchain address classification is improved.