Random notary-based cross-chain data processing system, apparatus and device, and medium

The invention relates to the technical field of data processing, and discloses a cross-chain data processing system, device and equipment based on a random notary, and a medium, and the method comprises the steps: a first chain node of a first user generates first transaction information, and a second chain node of a second user generates second transaction information; according to the embodiment of the invention, each third-party user node in the third-party user node set can perform transaction information matching on the first transaction information and the second transaction information, and the target third-party user node can generate cross-chain fund transfer information under the condition of successful transaction information matching. Therefore, the first chain node of the first user carries out the cross-chain fund transfer according to the cross-chain fund transfer information, the current system parameter information, the first transaction amount information, the first symmetric key information