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).
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Patent number: 11816099Abstract: 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: GrantFiled: August 31, 2021Date of Patent: November 14, 2023Assignee: Advanced New Technologies Co., Ltd.Inventors: Yize Li, Xinying Yang, Yuan Zhang
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Patent number: 11455297Abstract: Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for managing transaction requests in ledger systems.Type: GrantFiled: March 30, 2021Date of Patent: September 27, 2022Assignee: Alipay (Hangzhou) Information Technology Co., Ltd.Inventors: Yuan Zhang, Benquan Yu, Yize Li, Wenyuan Yan, Xinying Yang
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Patent number: 11455631Abstract: Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for managing transaction requests in ledger systems.Type: GrantFiled: March 31, 2021Date of Patent: September 27, 2022Assignee: Alipay (Hangzhou) Information Technology Co., Ltd.Inventors: Yuan Zhang, Yize Li, Benquan Yu, Xinying Yang, Wenyuan Yan
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Patent number: 11283622Abstract: 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: GrantFiled: July 2, 2021Date of Patent: March 22, 2022Assignee: Advanced New Technologies Co., Ltd.Inventors: Xinying Yang, Benquan Yu, Yuan Zhang, Yize Li
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Patent number: 11271760Abstract: 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 in a blockchain to a trust time server by a ledger server in a centralized ledger system that stores data in the blockchain, the trust time server being associated with a trust time authority and independent from the centralized ledger system, the blockchain including a plurality of blocks storing transaction data, receiving a timestamp and associated signature for the to-be-timestamped block from the trust time server by the ledger server, and storing information of the timestamp and the associated signature for the to-be-timestamped block in the blockchain by the ledger server.Type: GrantFiled: March 25, 2020Date of Patent: March 8, 2022Assignee: Advanced New Technologies Co., Ltd.Inventors: Xinying Yang, Benquan Yu, Yuan Zhang, Wenyuan Yan, Yize Li
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Publication number: 20220058184Abstract: 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: ApplicationFiled: August 31, 2021Publication date: February 24, 2022Applicant: Advanced New Technologies Co., Ltd.Inventors: Yize Li, Xinying Yang, Yuan Zhang
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Patent number: 11250428Abstract: Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for managing transaction requests in ledger systems.Type: GrantFiled: March 31, 2021Date of Patent: February 15, 2022Assignee: Alipay (Hangzhou) Information Technology Co., Ltd.Inventors: Yuan Zhang, Benquan Yu, Yize Li, Wenyuan Yan, Xinying Yang
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Patent number: 11223471Abstract: 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: GrantFiled: March 8, 2021Date of Patent: January 11, 2022Assignee: Advanced New Technologies Co., Ltd.Inventors: Yuan Zhang, Xinying Yang, Yize Li
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Publication number: 20210336798Abstract: 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: ApplicationFiled: July 2, 2021Publication date: October 28, 2021Applicant: Advanced New Technologies Co., Ltd.Inventors: Xinying Yang, Benquan Yu, Yuan Zhang, Yize Li
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Publication number: 20210334802Abstract: Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for managing transaction requests in ledger systems.Type: ApplicationFiled: March 31, 2021Publication date: October 28, 2021Applicant: ALIPAY (HANGZHOU) INFORMATION TECHNOLOGY CO., LTD.Inventors: Yuan Zhang, Yize Li, Benquan Yu, Xinying Yang, Wenyuan Yan
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Publication number: 20210334268Abstract: Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for managing transaction requests in ledger systems.Type: ApplicationFiled: March 30, 2021Publication date: October 28, 2021Applicant: ALIPAY (HANGZHOU) INFORMATION TECHNOLOGY CO., LTD.Inventors: Yuan Zhang, Benquan Yu, Yize Li, Wenyuan Yan, Xinying Yang
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Publication number: 20210334801Abstract: Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for managing transaction requests in ledger systems.Type: ApplicationFiled: March 31, 2021Publication date: October 28, 2021Applicant: ALIPAY (HANGZHOU) INFORMATION TECHNOLOGY CO., LTD.Inventors: Yuan Zhang, Benquan Yu, Yize Li, Wenyuan Yan, Xinying Yang
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Patent number: 11108573Abstract: 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: GrantFiled: February 1, 2021Date of Patent: August 31, 2021Assignee: Advanced New Technologies Co., Ltd.Inventors: Xinying Yang, Yuan Zhang, Benquan Yu, Yize Li
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Patent number: 11106660Abstract: 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: GrantFiled: March 29, 2021Date of Patent: August 31, 2021Assignee: Advanced New Technologies Co., Ltd.Inventors: Yize Li, Xinying Yang, Yuan Zhang
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Patent number: 11070379Abstract: 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: GrantFiled: January 30, 2020Date of Patent: July 20, 2021Assignee: Advanced New Technologies Co., Ltd.Inventors: Xinying Yang, Benquan Yu, Yuan Zhang, Yize Li
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Publication number: 20210216534Abstract: 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: ApplicationFiled: March 29, 2021Publication date: July 15, 2021Applicant: Advanced New Technologies Co., Ltd.Inventors: Yize Li, Xinying Yang, Yuan Zhang
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Patent number: 11057220Abstract: 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: GrantFiled: July 31, 2020Date of Patent: July 6, 2021Assignee: Advanced New Technologies Co., Ltd.Inventors: Xinying Yang, Benquan Yu, Yuan Zhang, Yize Li
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Publication number: 20210194675Abstract: 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: ApplicationFiled: March 8, 2021Publication date: June 24, 2021Applicant: Advanced New Technologies Co., Ltd.Inventors: Yuan Zhang, Xinying Yang, Yize Li
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Patent number: 11038695Abstract: 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: GrantFiled: July 30, 2020Date of Patent: June 15, 2021Assignee: Advanced New Technologies Co., Ltd.Inventors: Yize Li, Benquan Yu, Xinying Yang, Wenyuan Yan, Yuan Zhang
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Publication number: 20210152376Abstract: 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: ApplicationFiled: February 1, 2021Publication date: May 20, 2021Applicant: Advanced New Technologies Co., Ltd.Inventors: Xinying Yang, Yuan Zhang, Benquan Yu, Yize Li