olemus
Wiktionary:
1. an official indicator that things will happen as planned
We will send you a written confirmation of your hotel booking
2. a verification that something is true or has happened
The announcement in the newspaper was a confirmation of my suspicions.

näiteid
ISO/IEC 14776:
teenusetaotluse lõpuleviimist näitav vastus objektile
= response returned to an application client or device server that signals the completion of a service request

ISO/IEC 27041:
objektiivsete asitõendite formaalne hindamine
otsustamiseks, kas
käsitletav protsess sobib ettemääratud otstarbeks
= formal assessment of existing objective evidence that a process is fit (or remains fit) for a specified purpose

identiteediteabe kinnitus:
http://www.legislation.govt.nz/act/public/2012/0124/latest/whole.html#DLM3136849

teaduses:
https://en.wikipedia.org/wiki/Scientific_method#Confirmation

vt ka
- allikakinnitus (2), autentimise kinnitus
- kehtivuse kinnitus (2)
- kinnitama (1)
- kinnitus (1)
- kinnitus (2)
- päritolu kinnitus, allikakinnitus (1)