Permanence
Permanence is the state of being permanent:

Digital permanence
Object permanence
Print permanenceIn popular culture:

Permanence (novel) by Karl SchroederIn science:

The inverse of inductance.In music:

Permanence (album), a 2015 album by No Devotion

See also
Impermanence, an essential doctrine of Buddhism
Permanent (disambiguation)
Principle of permanence (mathematics)