Blockchain-based data snapshot method and apparatus, and computer-readable storage medium

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United States of America Patent

PATENT NO 11782793
APP PUB NO 20220269568A1
SERIAL NO

17740925

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Abstract

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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.

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Patent Owner(s)

  • TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Huang, Huankun Shenzhen, CN 15 4
Li, Maocai Shenzhen, CN 64 184
Liu, Qucheng Shenzhen, CN 26 11
Yang, Changqing Shenzhen, CN 30 24
Zhang, Jinsong Shenzhen, CN 44 257
Zhou, Kaiban Shenzhen, CN 23 18
Zhu, Gengliang Shenzhen, CN 34 13

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