Patent ID: 11902446
Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 5:
6. The method according to claim 1, wherein transaction information in the target data block comprises an input item and an output item, the input item being linked to an output item of transaction information in another data block recorded on the blockchain earlier than the target data block, and
the verification result received from each of the other accounting nodes is based on a determination whether the output item to which the input item of the transaction information in the target data block is linked is already linked to an input item of transaction information in a data block recorded on the blockchain before the target data block is recorded on the blockchain, and the verification result is ‘Not Passed’ based on the output item to which the input item of the transaction information in the target data block is linked being already linked to the input item of the transaction information in the data block recorded on the blockchain before the target data block is recorded on the blockchain; otherwise, the verification result is ‘Passed’.