This document is a patent application published by the European Patent Office (EPO) for a method and apparatus related to blockchain-based invoice voiding. The application, EP3905172A1, was filed by Advanced New Technologies Co., Ltd. and includes inventors from the company. The core innovation appears to be a system that leverages blockchain to ensure the integrity and immutability of invoice voiding processes.

As this is a patent application, it does not impose direct compliance obligations or deadlines on regulated entities. However, it signifies potential future technological developments in financial transaction management and record-keeping. Companies operating in sectors that handle significant invoice volumes, such as retail or international trade, may wish to monitor the progress of this patent and similar innovations for potential future integration or competitive impact.