Block chain large file copy site selection method, system and device and storage medium

• Main Authors: LI QINGZHONG, FENG SIQI, KONG LANJU, LI WENQUAN, JIN FUQI, GUO WEI
• Format: Patent
• Language: Chinese; English
• Published: 09.04.2021
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRIC DIGITAL DATA PROCESSING; ELECTRICITY; PHYSICS; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention provides a blockchain large file copy site selection method, which is applied to a P2P storage network and comprises the following steps: establishing a blockchain application system, jointly maintaining a shared account book by a plurality of blockchain nodes in the blockchain application system, and recording a hash value corresponding to a large file requested to be stored by a user in the shared account book; establishing a P2P storage network, wherein a plurality of storage nodes in the P2P storage network provide under-chain storage for the blockchain; and determining, by the blockchain node which acquires accounting right of shared account book, the storage node set of large file backup according to final cost of storage nodes in P2P storage network. The invention further provides a block chain large file copy site selection system and device and a storage medium, the data size stored in the block chain is reduced, the response time of the P2P storage network to external services is prolo