authoritative

Definition

Established control authority over an identifier, that has received attestations to it, e.g. control over the identifier has been verified to its root-of-trust. So the (control over the) identifier is 'authoritative' because it can be considered accurate, renowned, honourable and / or respected.
Also used to describe PKI key pairs that have this feature.

Four A’s of secure data control

1. Author: creator, source-of-truth
2. Authentic: provable origin, root-of-trust
3. Authorized: consent, loci-of-control
4. Authoritative: accurate, reputable

"A4" data control securely is established via self-certifying pseudonymous identifiers
Source Samuel M. Smith