noun
confirmation certificate; proof of confirmation
A document or certificate that serves as proof that something has been confirmed, verified, or registered. Often used in administrative, legal, or business contexts.
申し込みが完了すると、確認証が発行されます。
Once the application is completed, a confirmation certificate will be issued.
本人確認証を提示してください。
Please present your identity verification document.
証明書 is a broader term for any certificate or proof, whereas 確認証 emphasizes that the document confirms a specific fact or status.
Compound of 確認 (confirmation) + 証 (certificate, proof).