A credential issued on a machine whose clock was one second ahead was "not yet valid" at a verifier synchronized by NTP: measured on
2026-09-30 through the Aere Cloud identity route, the first time a credential was issued on one machine and judged on another.
Starts (a credential's and a status list's validFrom, a delegation's notBefore) are now accepted up to 60 s in the verifier's future
(verifyPresentation clockSkewS, 0..600); a revocation dated up to 60 s ahead already applies; ends (validUntil, notAfter) get no
allowance, since that would extend a validity.
Tests: identity 44/44, negative control 49/49.
