/sɝtəfɪˈkeɪʃən ʌv ˈsɪɡnətʃər/ – Phrase
Definition: chứng thực, thị thực chữ ký.
A more thorough explanation: Certification of signature refers to a process where a person, typically a notary public or other authorized individual, verifies the authenticity of a signature on a document. This certification confirms that the signature was made by the person whose name appears on the document. It is often required for legal or official purposes to ensure the validity and authenticity of the document.
Example: The certification of signature is required for the execution of legal documents.