The method of identifying the author in the original subject of copyright is to prove that the person who signed the work is the author if there is no contrary proof. The proof to the contrary here included: 1. The work itself is contradictory or inconsistent, such as the source of the work or the identity of the author is unknown or there is controversy; 2. There is other evidence to prove the author's identity, such as the author has a clear record of publication, publication record, creation process record, etc. It should be noted that when confirming the author's identity, one should not only rely on the identity of the signer. Other relevant evidence such as the creative process, publication records, publication records, etc. should also be considered to determine the author's identity.