The question posed is whether China's official foreign exchange reserves are used to facilitate remittances abroad. In my recollection, domestic banks typically purchase foreign currencies after acquiring renminbi, rather than exporting renminbi directly. Could this be the key to understanding the definition of 'official foreign exchange reserves' in this context? Furthermore, if we assume that foreign financial institutions issue anchored certificates backed by official foreign exchange reserves, how could one verify the authenticity of these institutions and their compliance with the reserve requirements? It is crucial to clarify these details to ensure a thorough understanding of the remittance process and the role of official foreign exchange reserves in it.