Abstract: A data transmission method, an electronic device and a computer-readable storage medium are disclosed. The method is applied to a topological connection, the topological connection including a source node and first-level sub-nodes. The method includes: selecting, according to the source node, a first-level sub-node to which digital content is issued by the source node; establishing an authentication channel between the first-level sub-node and the source node; adjusting a counting parameter of the source node according to the authentication channel, and acquiring an authentication identifier of the first-level sub-node; and issuing the digital content to the first-level sub-node according to the authentication identifier if the adjusted counting parameter is smaller than a preset threshold.