Patents by Inventor Yize Li

Yize Li has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11005648
    Abstract: This disclosure relates to blockchain-type storage of receipt data. In one aspect, a method includes obtaining a to-be-stored data record including a first service attribute. Execution information of the to-be-stored data record is determined. A previous data record is obtained from a blockchain-type ledger. The previous data record includes a second service attribute that is the same as the first service attribute. Each data block in the blockchain-type ledger includes a block header and a block body. A hash value of the previous data record is determined. A receipt record is generated. The receipt record includes the hash value of the previous data record and the execution information of the to-be-stored data record. The to-be-stored data record and the receipt record are written into a same block body in the blockchain-type ledger.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: May 11, 2021
    Assignee: Advanced New Technologies Co., Ltd.
    Inventors: Yuan Zhang, Xinying Yang, Yize Li
  • Patent number: 10999062
    Abstract: This disclosure relates to blockchain-type storage of receipt data. In one aspect, a method includes obtaining a to-be-stored data record including a first service attribute. Execution information of the to-be-stored data record is determined. A previous data record is obtained from a blockchain-type ledger. The previous data record includes a second service attribute that is the same as the first service attribute. Each data block in the blockchain-type ledger includes a block header and a block body. A hash value of the previous data record is determined. A receipt record is generated. The receipt record includes the hash value of the previous data record and the execution information of the to-be-stored data record. The to-be-stored data record and the receipt record are written into a same block body in the blockchain-type ledger.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: May 4, 2021
    Assignee: Advanced New Technologies Co., Ltd.
    Inventors: Yuan Zhang, Xinying Yang, Yize Li
  • Patent number: 10963453
    Abstract: Implementations of this specification provide service identifier-based data indexing. An example method performed by a data indexing apparatus of a centralized database service provider that stores data by using a blockchain-type ledger includes obtaining a service identifier and a service label of a data record, the service identifier uniquely identifying a service attribute of the data record, and the service label representing a type of the data record; determining location information of the data record in the blockchain-type ledger, the location information including a block height of a data block that includes the data record, and a positional offset of the data record in the data block that includes the data record; establishing a mapping relationship among the service identifier, the service label, and the location information; and writing the mapping relationship into an index for which a primary key is the service identifier.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: March 30, 2021
    Assignee: Advanced New Technologies Co., Ltd.
    Inventors: Yize Li, Xinying Yang, Yuan Zhang
  • Patent number: 10958441
    Abstract: Implementations of this specification provide signature verification methods and apparatuses for a blockchain ledger. An example method includes receiving by a server, a signature verification instruction that comprises a verification object parameter and a hash value. The verification object parameter includes a third-party parameter, a platform parameter, or a time service certificate parameter, the verification object parameter indicates a type of a to-be-verified object, and the server is configured to store data by using the blockchain ledger. The server obtains the to-be-verified object based on the verification object parameter and the hash value. The type of the to-be-verified object includes a third-party digital signature, a server digital signature, or a time service certificate. The server sends the to-be-verified object to a client for verification by the client.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: March 23, 2021
    Assignee: Advanced New Technologies Co., Ltd.
    Inventors: Xinying Yang, Benquan Yu, Yuan Zhang, Yize Li
  • Patent number: 10944549
    Abstract: This disclosure relates to blockchain-type storage of receipt data. In one aspect, a method includes obtaining a to-be-stored data record including a first service attribute. Execution information of the to-be-stored data record is determined. A previous data record is obtained from a blockchain-type ledger. The previous data record includes a second service attribute that is the same as the first service attribute. Each data block in the blockchain-type ledger includes a block header and a block body. A hash value of the previous data record is determined. A receipt record is generated. The receipt record includes the hash value of the previous data record and the execution information of the to-be-stored data record. The to-be-stored data record and the receipt record are written into a same block body in the blockchain-type ledger.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: March 9, 2021
    Assignee: Advanced New Technologies Co., Ltd.
    Inventors: Yuan Zhang, Xinying Yang, Yize Li
  • Patent number: 10936734
    Abstract: A computer-implemented method includes: receiving, by a server storing one or more blockchain ledgers, an authorization request from a client, in which the authorization request includes a service end identifier and a user identifier; generating, based on the authorization request, a database authorization instruction corresponding to the authorization request and a ledger identifier corresponding to the authorization request; authorizing a service end corresponding to the service end identifier as a user in a blockchain ledger corresponding to the ledger identifier; configuring a permission value of the user in the blockchain ledger, in which the permission value determines a degree to which the service end can operate the blockchain ledger; and sending authorization information including the user identifier and the ledger identifier to the service end.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: March 2, 2021
    Assignee: Advanced New Technologies Co., Ltd.
    Inventors: Wenyuan Yan, Xinying Yang, Yuan Zhang, Yize Li, Benquan Yu
  • Patent number: 10924288
    Abstract: Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for managing blockchain-based centralized ledger systems. One of the methods includes transmitting individual timestamp requests for to-be-timestamped blocks in a blockchain to a trust time server independent from a blockchain-based centralized ledger system that stores data in the blockchain, the blockchain including a plurality of blocks storing transaction data, receiving respective timestamps and associated signatures for the to-be-timestamped blocks from the trust time server, and storing information of the respective timestamps and associated signatures for the to-be-timestamped blocks in respective timestamped blocks in the blockchain, any adjacent two of the timestamped blocks in the blockchain being anchored with each other.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: February 16, 2021
    Assignee: Advanced New Technologies Co., Ltd.
    Inventors: Wenyuan Yan, Yuan Zhang, Xinying Yang, Benquan Yu, Yize Li
  • Patent number: 10911251
    Abstract: A computer-implemented method for performing authentication includes: determining, by a database server storing data in a blockchain ledger, a target ledger segment on which time service authentication is to be performed; generating a Merkle tree corresponding to the target ledger segment; determining a root hash of the Merkle tree, the root hash of the Merkle tree being based on a block hash of each data block in a set of one or more data blocks; executing a predetermined time capture process in a trusted execution environment to obtain a trusted time from an interface provided by a trusted time service organization; generating a digital signature for the trusted time and the root hash in the trusted execution environment; and generating a time service certificate including the trusted time, the root hash, and the digital signature.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: February 2, 2021
    Assignee: Advanced New Technologies Co., Ltd.
    Inventors: Xinying Yang, Yuan Zhang, Benquan Yu, Yize Li
  • Patent number: 10904013
    Abstract: Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for managing blockchain-based centralized ledger systems. One of the methods includes: receiving timestamps and associated signatures from an independent trust time server associated with a trust time authority by a centralized ledger server in a centralized ledger system, storing the timestamps and the associated signatures in a centralized trust timestamp blockchain that stores trust timestamp information of the trust time server for the centralized ledger system that stores data in blockchains each including a plurality of blocks, receiving a timestamp request for a block of a blockchain from a ledger server associated with the blockchain by the centralized ledger server, and transmitting a timestamp and associated signature that is stored in the timestamp blockchain and corresponds to the timestamp request to the ledger server by the centralized ledger server.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: January 26, 2021
    Assignee: Advanced New Technologies Co., Ltd.
    Inventors: Yize Li, Benquan Yu, Xinying Yang, Wenyuan Yan, Yuan Zhang
  • Patent number: 10904017
    Abstract: Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for managing blockchain-based centralized ledger systems. One of the methods includes transmitting a timestamp request for a to-be-timestamped block of a blockchain at a time point to a trust time server by a ledger server in a blockchain-based centralized ledger system that stores data in the blockchain, the trust time server being associated with a trust time authority and independent from the blockchain-based centralized ledger system, the blockchain including a plurality of blocks storing transaction data, and disregarding the timestamp request in response to determining that a predetermined time period has lapsed after the time point and that there has been no reply to the timestamp request from the trust time server.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: January 26, 2021
    Assignee: Advanced New Technologies Co., Ltd.
    Inventors: Yize Li, Yuan Zhang, Wenyuan Yan, Benquan Yu, Xinying Yang
  • Patent number: 10880105
    Abstract: Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for managing blockchain-based centralized ledger systems.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: December 29, 2020
    Assignee: Advanced New Technologies Co., Ltd.
    Inventors: Yize Li, Benquan Yu, Xinying Yang, Yuan Zhang, Wenyuan Yan
  • Publication number: 20200364356
    Abstract: A computer-implemented method includes: receiving, by a server storing one or more blockchain ledgers, an authorization request from a client, in which the authorization request includes a service end identifier and a user identifier; generating, based on the authorization request, a database authorization instruction corresponding to the authorization request and a ledger identifier corresponding to the authorization request; authorizing a service end corresponding to the service end identifier as a user in a blockchain ledger corresponding to the ledger identifier; configuring a permission value of the user in the blockchain ledger, in which the permission value determines a degree to which the service end can operate the blockchain ledger; and sending authorization information including the user identifier and the ledger identifier to the service end.
    Type: Application
    Filed: July 31, 2020
    Publication date: November 19, 2020
    Applicant: Alibaba Group Holding Limited
    Inventors: Wenyuan Yan, Xinying Yang, Yuan Zhang, Yize Li, Benquan Yu
  • Publication number: 20200366504
    Abstract: Implementations of this specification provide signature verification methods and apparatuses for a blockchain ledger. An example method includes receiving by a server, a signature verification instruction that comprises a verification object parameter and a hash value. The verification object parameter includes a third-party parameter, a platform parameter, or a time service certificate parameter, the verification object parameter indicates a type of a to-be-verified object, and the server is configured to store data by using the blockchain ledger. The server obtains the to-be-verified object based on the verification object parameter and the hash value. The type of the to-be-verified object includes a third-party digital signature, a server digital signature, or a time service certificate. The server sends the to-be-verified object to a client for verification by the client.
    Type: Application
    Filed: July 31, 2020
    Publication date: November 19, 2020
    Applicant: Alibaba Group Holding Limited
    Inventors: Xinying Yang, Benquan Yu, Yuan Zhang, Yize Li
  • Publication number: 20200366465
    Abstract: This disclosure relates to blockchain-type storage of receipt data. In one aspect, a method includes obtaining a to-be-stored data record including a first service attribute. Execution information of the to-be-stored data record is determined. A previous data record is obtained from a blockchain-type ledger. The previous data record includes a second service attribute that is the same as the first service attribute. Each data block in the blockchain-type ledger includes a block header and a block body. A hash value of the previous data record is determined. A receipt record is generated. The receipt record includes the hash value of the previous data record and the execution information of the to-be-stored data record. The to-be-stored data record and the receipt record are written into a same block body in the blockchain-type ledger.
    Type: Application
    Filed: July 31, 2020
    Publication date: November 19, 2020
    Applicant: Alibaba Group Holding Limited
    Inventors: Yuan Zhang, Xinying Yang, Yize Li
  • Publication number: 20200366464
    Abstract: This disclosure relates to blockchain-type storage of receipt data. In one aspect, a method includes obtaining a to-be-stored data record including a first service attribute. Execution information of the to-be-stored data record is determined. A previous data record is obtained from a blockchain-type ledger. The previous data record includes a second service attribute that is the same as the first service attribute. Each data block in the blockchain-type ledger includes a block header and a block body. A hash value of the previous data record is determined. A receipt record is generated. The receipt record includes the hash value of the previous data record and the execution information of the to-be-stored data record. The to-be-stored data record and the receipt record are written into a same block body in the blockchain-type ledger.
    Type: Application
    Filed: July 31, 2020
    Publication date: November 19, 2020
    Applicant: Alibaba Group Holding Limited
    Inventors: Yuan Zhang, Xinying Yang, Yize Li
  • Publication number: 20200366508
    Abstract: A computer-implemented method for performing authentication includes: determining, by a database server storing data in a blockchain ledger, a target ledger segment on which time service authentication is to be performed; generating a Merkle tree corresponding to the target ledger segment; determining a root hash of the Merkle tree, the root hash of the Merkle tree being based on a block hash of each data block in a set of one or more data blocks; executing a predetermined time capture process in a trusted execution environment to obtain a trusted time from an interface provided by a trusted time service organization; generating a digital signature for the trusted time and the root hash in the trusted execution environment; and generating a time service certificate including the trusted time, the root hash, and the digital signature.
    Type: Application
    Filed: July 31, 2020
    Publication date: November 19, 2020
    Applicant: Alibaba Group Holding Limited
    Inventors: Xinying Yang, Yuan Zhang, Benquan Yu, Yize Li
  • Publication number: 20200366499
    Abstract: Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for managing blockchain-based centralized ledger systems. One of the methods includes: receiving timestamps and associated signatures from an independent trust time server associated with a trust time authority by a centralized ledger server in a centralized ledger system, storing the timestamps and the associated signatures in a centralized trust timestamp blockchain that stores trust timestamp information of the trust time server for the centralized ledger system that stores data in blockchains each including a plurality of blocks, receiving a timestamp request for a block of a blockchain from a ledger server associated with the blockchain by the centralized ledger server, and transmitting a timestamp and associated signature that is stored in the timestamp blockchain and corresponds to the timestamp request to the ledger server by the centralized ledger server.
    Type: Application
    Filed: July 30, 2020
    Publication date: November 19, 2020
    Applicant: Alibaba Group Holding Limited
    Inventors: Yize Li, Benquan Yu, Xinying Yang, Wenyuan Yan, Yuan Zhang
  • Publication number: 20200366500
    Abstract: Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for managing blockchain-based centralized ledger systems. One of the methods includes: receiving timestamps and associated signatures from an independent trust time server associated with a trust time authority by a centralized ledger server in a centralized ledger system, storing the timestamps and the associated signatures in a centralized trust timestamp blockchain that stores trust timestamp information of the trust time server for the centralized ledger system that stores data in blockchains each including a plurality of blocks, receiving a timestamp request for a block of a blockchain from a ledger server associated with the blockchain by the centralized ledger server, and transmitting a timestamp and associated signature that is stored in the timestamp blockchain and corresponds to the timestamp request to the ledger server by the centralized ledger server.
    Type: Application
    Filed: July 30, 2020
    Publication date: November 19, 2020
    Applicant: Alibaba Group Holding Limited
    Inventors: Yize Li, Benquan Yu, Xinying Yang, Wenyuan Yan, Yuan Zhang
  • Publication number: 20200344068
    Abstract: Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for managing blockchain-based centralized ledger systems. One of the methods includes transmitting individual timestamp requests for to-be-timestamped blocks in a blockchain to a trust time server independent from a blockchain-based centralized ledger system that stores data in the blockchain, the blockchain including a plurality of blocks storing transaction data, receiving respective timestamps and associated signatures for the to-be-timestamped blocks from the trust time server, and storing information of the respective timestamps and associated signatures for the to-be-timestamped blocks in respective timestamped blocks in the blockchain, any adjacent two of the timestamped blocks in the blockchain being anchored with each other.
    Type: Application
    Filed: July 10, 2020
    Publication date: October 29, 2020
    Applicant: Alibaba Group Holding Limited
    Inventors: Wenyuan Yan, Yuan Zhang, Xinying Yang, Benquan Yu, Yize Li
  • Publication number: 20200344078
    Abstract: Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for managing blockchain-based centralized ledger systems. One of the methods includes transmitting a timestamp request for a to-be-timestamped block of a blockchain at a time point to a trust time server by a ledger server in a blockchain-based centralized ledger system that stores data in the blockchain, the trust time server being associated with a trust time authority and independent from the blockchain-based centralized ledger system, the blockchain including a plurality of blocks storing transaction data, and disregarding the timestamp request in response to determining that a predetermined time period has lapsed after the time point and that there has been no reply to the timestamp request from the trust time server.
    Type: Application
    Filed: July 9, 2020
    Publication date: October 29, 2020
    Applicant: Alibaba Group Holding Limited
    Inventors: Yize Li, Yuan Zhang, Wenyuan Yan, Benquan Yu, Xinying Yang