noun
attested copy; certified copy
A legal term for an official copy of a document that has been verified as true and accurate, often used in administrative or court contexts.
裁判所に証明謄本を提出する必要がある。
You need to submit an attested copy to the court.
Compound of 証明 (proof, attestation) and 謄本 (certified copy). The exact historical derivation is uncertain, but the term is used in modern legal contexts.