公开(公告)号：US20240220972A1

公开(公告)日：2024-07-04

申请号：US18598547

申请日：2024-03-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Donghui WANG ,  Jing CHEN ,  Fei LIU ,  Meng JIA

IPC: G06Q20/38 ,  G06Q20/40 ,  H04L9/00 ,  H04L9/08 ,  H04L9/32

CPC classification number: G06Q20/3827 ,  G06Q20/3829 ,  G06Q20/401 ,  H04L9/0825 ,  H04L9/3236 ,  H04L9/50

Abstract: This application relates to a communication method and apparatus. A first node sends a first message. The first message includes at least one of request information and information about a first transaction, the request information is used to request to modify a second transaction, the first transaction is a modified second transaction, and the second transaction is stored in a first blockchain. The first blockchain includes N blocks, an ith block in the first blockchain includes a first field and a second field, and the second field is used to store a second preset value or a second hash value of a previous block whose block height is the same as a block height of the ith block. Editability of the block is implemented by using the first hash value, to implement editability of the blockchain.