A data processing method, a node, a blockchain network, and a virtual data carrier are provided. The data processing method includes receiving a block addition message which is with respect to a target virtual data carrier and sent by any one node in a blockchain network, the block addition message including a digital identifier and data change information, the blockchain network including a plurality of virtual data carriers storing data character information, and each virtual data carrier is provided with a unique digital identifier and corresponds to at least one blockchain; acquiring target blockchain information corresponding to the target virtual data carrier, according to the digital identifier corresponding to the target virtual data carrier; and judging, based on data change history information of at least one block in the target blockchain information, whether the data change information is legitimate, and if legitimate, confirming the data change information.