Block out method, apparatus and storage medium based on block chain system

The invention discloses a block-out method, a device and a storage medium based on a block chain system. The block chain system comprises a plurality of authentication nodes, wherein the plurality ofauthentication nodes output blocks according to a first order. The method comprises the following steps of obtaining a first block number of a block to be generated; and configuring the plurality of authentication nodes to exit blocks in a second order generated by randomly sorting in a case where the difference between the first block number and the second block number is a predetermined integermultiple of the number of the plurality of authentication nodes, wherein the second block number determines the block number of the blocks generated when the plurality of authentication nodes exit blocks in the first order. The invention solves the technical problem that a malicious attacker can predict each round of the block-out node because of the fixed block-out order of a plurality of authentication nodes in the block