DATA MANAGEMENT METHOD FOR BLOCKCHAIN SYSTEM, DEVICE, MEDIUM, AND ELECTRONIC APPARATUS

摘要

Embodiments of this application provide a data management method and apparatus for a blockchain system, a medium, and an electronic device. The blockchain system includes an accounting node sub-network and a service node sub-network. The data management method includes: adding, after an accounting node generates a first data block, first key information used for verifying a block header of a second data block generated after the first data block to a block header of the first data block; generating a signature corresponding to the first data block, and adding the signature corresponding to the first data block to the block header of the first data block; and releasing the block header of the first data block to the service node sub-network, to cause a service node to verify the signature included in the block header of the first data block, and obtaining the first key information after a successful verification to verify the block header of the second data block. The technical solutions of the embodiments of this application flexibly update a block header verification key, and effectively ensure security of block header data.