Alibaba Group Holding Limited
BLOCKCHAIN LEDGER-BASED EVIDENCE ACQUISITION METHOD AND SYSTEM

Abstract:

Disclosed are a blockchain ledger-based evidence acquisition method and apparatus. A user (party to a lawsuit) can operate user equipment to record one or more of the user's behavior and voice into a multimedia file and then send the multimedia file to a service device, so the service device constructs a target transaction based on the multimedia file and broadcasts the target transaction to a blockchain network for each node in the blockchain network to add the target transaction to the blockchain based on a consensus mechanism. As such, multi-party storage of the multimedia file is realized.