US Patent 10892898 Shared blockchain data storage

Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for communicating and sharing blockchain data. One of the methods includes sending current state information associated with a current block of a blockchain to one or more shared storage nodes of the blockchain network; sending a hash value to the one of the one or more shared storage nodes for retrieving an account state stored in the historic state tree; receiving the account state in response to sending the hash value; and verifying, by the consensus node, that the account state is part of the blockchain based on the hash value.