/ˌɔːθɛnˈtɪsəti/ – Adjective
Definition: tính xác thực, tính đáng tin cậy.
A more thorough explanation: Authenticity refers to the quality or condition of being genuine, real, or true. In legal terms, authenticity often pertains to the verification or validation of the origin, source, or authorship of a document, evidence, or information to ensure its reliability and trustworthiness in a legal context.
Example: The authenticity of the signature on the contract was verified by a handwriting expert.