University of Electronic Science and Technology of China

Hangzhou Yunphant Network Technology Co. Ltd.

Sichuan Digital Economy Research Institute (yibin)

Sheng Cao

Xiaosong Zhang

Butian Huang

The present disclosure provides a blockchain sharding method, system, and server based on locally repairable system codes. The blockchain sharding system includes k original shards and n−k encoding shards. In each round of consensus, each original shard and m corresponding encoding shards form a local verification group (m<<n−k), and each encoding shard and t original shards participating in generation of the encoding shard form local recovery groups (t<<k). The local verification group is responsible for verifying whether a to-be-verified transaction is legitimate. When a single shard in the verification group is corrupted, the remaining m shards can reach a consistent verification result. According to the principle that the minority is subordinate to the majority, the verification group can still correctly verify the legitimacy of the transaction.

Growing community of inventors

Chengdu, China

Sheng Cao