Alibaba Group Holding Limited
Blockchain user account data

Abstract:

A computer-implemented method for storing data of a new user account in a blockchain ledger, the method including: receiving, from a first client, by a server storing data in the blockchain ledger, an operation instruction instructing the server to create a user account corresponding to a user identifier, in which the operation instruction includes the user identifier and a public key parameter; obtaining, based on the public key parameter, a public key corresponding to the user identifier; creating, in the blockchain ledger, the user account corresponding to the user identifier; generating a data record including the operation instruction and the public key; and writing the data record into the blockchain ledger.