Patents by Inventor Maocai LI

Maocai 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: 11936769
    Abstract: Aspects of the disclosure provide methods and apparatuses for storing data. In some examples, an information processing apparatus that includes processing circuitry is provided. The processing circuitry is configured to receive data and determine a target blockchain based on an attribute associated with the data and blockchain correspondence information. The blockchain correspondence information indicates attributes associated with a plurality of blockchains. Further, the processing circuitry is configured to store a first block that is generated based on the received data in the target blockchain.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: March 19, 2024
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Rui Guo, Maocai Li, Jun Liang, Jianjun Zhang, Zongyou Wang, Qi Zhao, Haitao Tu, Binhua Liu, Dawei Zhu, Qing Qin
  • Patent number: 11917057
    Abstract: The present disclosure includes a method for processing distributed data. In the method, the distributed data of a first main body is obtained. The distributed data has a transfer identifier. The distributed data is transferred, in response to a second main body different from the first main body, to a management address based on the transfer identifier when the distributed data meets a first condition. The first condition is that the distributed data includes abnormal information. The distributed data transferred to the management address freezes transfer of the distributed data by the first main body.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: February 27, 2024
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Maocai Li, Zongyou Wang, Hu Lan, Yifang Shi
  • Patent number: 11914730
    Abstract: A data storage method is provided at a computer system, including: obtaining first data and second data of a target object, the first data and the second data being data of different dimensions for measuring any aspect of the target object from generation to existence; storing the first data and the second data of the target object in the first node; receiving audit information of the first node for indicating the first data and the second data stored in the first node; verifying the audit information based on target audit information of at least one target node that transacts with the first node; broadcasting a verification success notification in the data storage system in a case that the verification succeeds; and determining that a consensus on the audit information is reached in a case that the received verification success notification meets a consensus success condition.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: February 27, 2024
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Dongyan Wang, Maocai Li, Rui Guo, Haitao Tu, Bo Li, Zongyou Wang, Jianjun Zhang
  • Patent number: 11893139
    Abstract: Aspects of the disclosure provide a method for displaying blockchain data, a blockchain browser, a user node, and a medium. The method can include transmitting a blockchain data query request, and receiving blockchain data obtained through query in response to the blockchain data query request. Further, the method can include obtaining filtered blockchain data, the filtered blockchain data being generated after illegal content in the blockchain data is filtered out based on a filtering rule, and displaying the filtered blockchain data. In embodiments of this disclosure, the display of the illegal content in the blockchain data can be automatically skipped.
    Type: Grant
    Filed: June 2, 2021
    Date of Patent: February 6, 2024
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Maocai Li, Zongyou Wang, Kaiban Zhou, Jinsong Zhang, Hu Lan, Li Kong, Changqing Yang, Yifang Shi
  • Patent number: 11792006
    Abstract: A method for electing a representative node device is performed at a blockchain system, including: obtaining voting transaction data from the node devices, the voting transaction data being used for voting for one or more node devices of the blockchain system as representative node devices; generating and storing the voting transaction data into a target blockchain of the blockchain system when a plurality of node devices of the blockchain system verify the voting transaction data by consensus; and when a quantity of blocks in the target blockchain generated using the voting transaction data reaches a preset quantity, determining an election result according to quantities of votes of the node devices determined from the voting transaction data, the election result identifying a plurality of representative node devices in the blockchain system being configured to generate new blocks for the target blockchain and perform verification on the new blocks by consensus.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: October 17, 2023
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Rui Guo, Maocai Li, Zongyou Wang, Haitao Tu, Li Kong, Kaiban Zhou, Changqing Yang, Nan Wang, Yong Ding, Yifang Shi
  • Patent number: 11782793
    Abstract: A blockchain-based data snapshot method, performed by a consensus node in a blockchain network, includes: obtaining a snapshot trigger instruction and a trigger moment of the snapshot trigger instruction; performing snapshot processing on one or more transaction blocks in a ledger at the trigger moment, to obtain a snapshot account state of a transaction account, the snapshot account state being account data related to transaction data in the transaction blocks; obtaining a write-ahead logging (WAL) log of a target block, the target block being a block with a highest block height in the transaction blocks, the WAL log including a log of account data corresponding to the target block; and correcting dirty data in the snapshot account state according to the WAL log, to obtain a corrected snapshot account state, the dirty data being generated based on incomplete transaction data in the target block included in the ledger.
    Type: Grant
    Filed: May 10, 2022
    Date of Patent: October 10, 2023
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Maocai Li, Changqing Yang, Kaiban Zhou, Qucheng Liu, Gengliang Zhu, Jinsong Zhang, Huankun Huang
  • Patent number: 11775377
    Abstract: The present disclosure discloses a client device having a digital signature. The client device includes processing circuitry configured to send a message to be stored in nodes after the nodes reach a consensus on the message. The message includes the digital signature of the client device. The processing circuitry obtains results from a subset of the nodes that receive the message. The results have respective digital signatures of the subset of the nodes. The nodes are in a first consensus mode for reaching the consensus on the message. After verifying the digital signatures, the processing circuitry determines whether one or more of the nodes has malfunctioned based on the results. Based on a determination that the one or more of the nodes has malfunctioned, the processing circuitry triggers the nodes to switch from the first consensus mode to a second consensus mode for reaching the consensus on the message.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: October 3, 2023
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Rui Guo, Maocai Li, Qi Zhao, Jianjun Zhang, Haitao Tu, Zongyou Wang, Jun Liang, Dawei Zhu, Lisheng Chen, Binhua Liu
  • Patent number: 11700113
    Abstract: This application discloses an audit result data storage method and device, an audit result data query method and device, an audit item storage method and device, an electronic device and a medium. The method includes obtaining a first hash value of audit result data of a first user; signing the first hash value according to a private key of the first user to obtain first signature data; and transmitting the first signature data to an audit result data storage subsystem, the audit result data storage subsystem being configured to store data in the form of a blockchain.
    Type: Grant
    Filed: March 21, 2022
    Date of Patent: July 11, 2023
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Dongyan Wang, Maocai Li, Bo Li, Haitao Tu
  • Publication number: 20230214824
    Abstract: A second blockchain system receives a first consensus message from a first blockchain system, the first blockchain system includes first nodes that provide services to at least a first account, and the second blockchain system includes second nodes that provide services to at least a second account. The first consensus message indicates a first plurality of the first nodes reaches a consensus for transferring a resource from the first account to the second account. The second blockchain system transfers the resource in the task to the second account. The transferring includes that a node in the second nodes adds the resource to the second account and generates a fourth block that records a completion of a transfer event. A second consensus message is transmitted from the second blockchain system to the first blockchain system in response to a second plurality of the second nodes completing the transfer event.
    Type: Application
    Filed: February 24, 2023
    Publication date: July 6, 2023
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Rui GUO, Maocai LI, Jun LIANG, Jianjun ZHANG, Zongyou WANG, Haitao TU, Qi ZHAO, Binhua LIU, Dawei ZHU, Qing QIN
  • Patent number: 11645649
    Abstract: An apparatus including processing circuitry and a method are described. When receiving a cross-chain transaction request to transfer a resource from a first account to a second account, the processing circuitry is configured to generate a task corresponding to the first account. The task can indicate conditions for implementing events in transferring the resource. A first blockchain system provides services for the first account, and a second blockchain system different from the first blockchain system provides services for the second account. The processing circuitry transfers the resource to the second account based on the task when a first plurality of first nodes in the first blockchain system reaches a consensus on a generation event of the task and updates a task status of the task to being finished when a plurality of second nodes in the second blockchain system reaches a consensus on a transfer event of the resource.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: May 9, 2023
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Rui Guo, Maocai Li, Jun Liang, Jianjun Zhang, Zongyou Wang, Haitao Tu, Qi Zhao, Binhua Liu, Dawei Zhu, Qing Qin
  • Publication number: 20230109969
    Abstract: A data processing method and apparatus based on a node internal memory, a device and a computer readable storage medium are provided. The method includes: acquiring a data reading contract associated with a transaction in a first block from a chain reading cache of the node internal memory; invoking the data reading contract to acquire a write cache mapping table associated with the first block, and determining target read data associated with the transaction based on a first block cache of the first block in the write cache mapping table; and executing the transaction based on the target read data, storing target cached data, corresponding to a result of executing of the transaction, to the first block cache, and writing the first block into a bifurcated blockchain.
    Type: Application
    Filed: December 2, 2022
    Publication date: April 13, 2023
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Maocai LI, Zongyou WANG, Hu LAN, Gengliang ZHU, Pan LIU, Kaiban ZHOU, Yifang SHI, Huankun HUANG, Jinsong ZHANG, Li KONG, Zhiyong LIAO
  • Publication number: 20230098190
    Abstract: A data processing method includes: detecting, when writing first block data into a local cache and a local storage, a first block processing space of a storage buffer pool; writing, when a number of block data to be stored does not reach a buffer block processing threshold, the first block data into the storage buffer pool based on N block data to be stored; detecting a second block processing space of a storage processing pool; and determining, when a number of block data to be fed back does not reach a feedback block processing threshold, block data to be merged for overlap detection with the block data to be fed back in the storage buffer pool based on the number of the block data to be fed back and the feedback block processing threshold, and writing the data retained after overlap detection to a distributed database.
    Type: Application
    Filed: November 23, 2022
    Publication date: March 30, 2023
    Inventors: Qucheng LIU, Maocai LI, Zongyou WANG, Hu LAN, Kaiban ZHOU, Li KONG, Pan LIU, Gengliang ZHU, Yifang SHI
  • Publication number: 20230097738
    Abstract: A data processing method includes: transmitting, by a first service node, service data information to a second service node, so that the second service node obtains data signature information; a first key parameter and a second key parameter that are both related to a random parameter; the random parameter being determined by the second service node based on a node private key and the service data information; performing signature verification on the received data signature information based on the first key parameter and the second key parameter, and adding a signature verification result obtained after signature verification to a verification result set; searching for a target signature verification result that satisfies a valid verification condition from the verification result set; and performing aggregate signature on the data signature information obtained after calculation when a quantity of signatures of the target signature verification result satisfies an aggregate signature condition.
    Type: Application
    Filed: December 7, 2022
    Publication date: March 30, 2023
    Inventors: Maocai LI, Zongyou WANG, Yifang SHI, Zhiyong LIAO, Pan LIU, Hu LAN, Kaiban ZHOU, Li KONG, Gengliang ZHU, Qucheng LIU, Jinsong ZHANG, Huankun HUANG, Jiahui CUI
  • Publication number: 20230087138
    Abstract: Embodiments of this disclosure disclose a data processing method and apparatus, a device, and a storage medium. The method includes: after receiving a block synchronization request carrying a target block height transmitted by a first service node, transmitting a compact block identification and the block synchronization request to a consensus node; the compact block identification being used for instructing the consensus node to determine structural information of a compact block corresponding to a block to be synchronized; searching for a local transaction identifier matching a target transaction identifier in a first relay cache; and in the first relay cache, taking local transaction data corresponding to the found local transaction identifier as first key transaction data, and performing data clearing on the first key transaction data successfully synchronized to the first service node.
    Type: Application
    Filed: November 29, 2022
    Publication date: March 23, 2023
    Applicant: Tencent Technology (Shenzhen) Company Limited
    Inventors: Maocai LI, Zongyou WANG, Hu LAN, Qucheng LIU, Zhiyong LIAO, Huankun HUANG, Kaiban ZHOU, Yifang SHI, Jinsong ZHANG, Gengliang ZHU, Pan LIU, Li KONG, Jiahui CUI
  • Publication number: 20230092484
    Abstract: In a block chain-based block consensus method, a proposal block generated in an Nth round with a block height of M is acquired, and validity verification is performed on the proposal block. An application is executed based on transaction data in the proposal block to obtain a target execution result. A block hash of the proposal block and the target execution result are stored in a memory, including N execution results with the block height of M. While the application is executed based on the transaction data, two rounds of consensus voting processing are performed on the proposal block to obtain a first consensus result. Based on the first consensus result being a consensus pass result, the target execution result mapped by the block hash of the proposal block in the memory is acquired, and the proposal block and the target execution result are stored to a block chain.
    Type: Application
    Filed: November 29, 2022
    Publication date: March 23, 2023
    Applicant: Tencent Technology (Shenzhen) Company Limited
    Inventors: Qucheng LIU, Maocai LI, Zongyou WANG, Hu LAN, Gengliang ZHU, Kaiban ZHOU, Pan LIU, Yifang SHI, Zhiyong LIAO, Huankun HUANG
  • Publication number: 20230074102
    Abstract: This application discloses a method and apparatus for processing data based on a block chain. The method includes adding transaction data in at least two blocks into an execution queue according to a block height sequence and transaction data sequence numbers; executing contract services and acquiring a read cache and a write cache of a parallel transaction generated by executing each contract service, the at least two pieces of transaction data comprising target transaction data; determining a write cache of a merged transaction in block caches, and acquiring a read cache of an updated transaction; determining a write cache of the transaction to be merged of the target transaction data according to the read cache of the updated transaction; and merging the write cache of the transaction to be merged of the target transaction data into a block cache to which the target transaction data belongs.
    Type: Application
    Filed: November 11, 2022
    Publication date: March 9, 2023
    Inventors: Qucheng LIU, Maocai LI, Zongyou WANG, Li KONG, Hu LAN, Pan LIU, Kaiban ZHOU, Gengliang ZHU, Yifang SHI, Huankun HUANG
  • Patent number: 11570006
    Abstract: A transaction data processing method includes: receiving a first transaction document from a device of a transaction initiator, the first transaction document being associated with identity labels of a plurality of transaction participants; separately performing identity authentication on the plurality of transaction participants according to the identity labels of the plurality of transaction participants, to obtain an identity authentication result.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: January 31, 2023
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Rui Guo, Dongyan Wang, Maocai Li, Jun Liang, Jianjun Zhang, Zongyou Wang, Binhua Liu, Haitao Tu, Qing Qin, Bo Li
  • Publication number: 20230019494
    Abstract: A data verification method and apparatus, a computer device and a computer-readable storage medium are provided, and belong to the technical field of networks. The method includes the following steps: acquiring a data verification request; acquiring at least one set of first data from at least one data source; and verifying target data based on the at least one set of first data. According to the solution, by acquiring data having a production and life relationship with the target data, during data verification, the authenticity of the target data can be verified based on different dimensions and different production and life links.
    Type: Application
    Filed: September 20, 2022
    Publication date: January 19, 2023
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Dongyan WANG, Maocai LI, Zongyou WANG, Hu LAN, Qucheng LIU, Yi LIU
  • Publication number: 20230014599
    Abstract: A data processing method includes: determining, in response to a request of an access terminal for writing target data to a blockchain, a target node role with a read permission for the target data, an access terminal connected with each node device having a permission of a node role corresponding to the node device; acquiring an encryption key corresponding to the target node role; performing encryption processing on the target data according to the encryption key to obtain a cipher text corresponding to the target data, the cipher text corresponding to the target data being decryptable for an access terminal corresponding to the target node role; and storing the cipher text corresponding to the target data to the blockchain.
    Type: Application
    Filed: September 28, 2022
    Publication date: January 19, 2023
    Inventors: Maocai LI, Hu LAN, Zongyou WANG, Kaiban ZHOU, Pan LIU, Gengliang ZHU, Yifang SHI
  • Publication number: 20230004542
    Abstract: A method for publishing a smart contract includes: generating a version number index value according to a contract name of the smart contract, and searching for an associated target contract version number from a blockchain network according to the version number index value; generating a contract index value according to a contract version number of the smart contract and the contract name, in response to determining that the contract version number of the smart contract is greater than the target contract version number; associating the contract index value with the smart contract and associating the version number index value with the contract version number of the smart contract, to generate transaction information; and publishing the transaction information to the blockchain network, to publish the smart contract to the blockchain network.
    Type: Application
    Filed: September 14, 2022
    Publication date: January 5, 2023
    Inventors: Bo FU, Maocai LI, Wei SHI, Li KONG, Yanxue CHONG, Yehui HUANG, Jiangwei TI, Jiahui CUI