Society · Protocols

ExpiringToken

Time-decaying privileges

Definition

Mechanism

Access tokens that strictly degrade in capability over time. A fresh key can do everything (Admin). After 1 hour, it degrades to Write-Only. After 2 hours, Read-Only. After 3 hours, Dead. The decay is encoded in the token logic itself. It extends BearerToken by embedding an immutable expiration timestamp within the signed payload.

Invariants

  1. Expired tokens cannot be revived.
  2. Monotonic Decay: Capabilities cannot increase over time
  3. Time-Bound: Token is invalid if CurrentTime > ExpiryTime

Risks

Failure modes

  1. Clock synchronization issues.

Relationships

Builds on

References

BearerToken

Possession-based authorization independent of token representation

Physics

Decay

Automatic expiration of stale state

Used by

References

Powerreturn

Return concentrated authority when the reason for concentrating it has ended

Reference

Identity

Ref
ExpiringToken#6cce
Sema ID
sema:ExpiringToken#mh:SHA-256:6ccee8101ea0c081947b221568ce55d3b727412df9015a4ac8e876dc956efcaf
Ring
2
Tier
1
Updated
2026-11-11
Supersedes
  • sema:ExpiringToken#mh:SHA-256:4e3cc3cee0de56a4eef0676629811cb4afa3383bc80bde227924d66a6af16f6e
  • sema:ExpiringToken#mh:SHA-256:a1c3ec3a2dcab7d534072c42b3829b0bb654f8a593c63a71075a38e75bedf72d
  • sema:ExpiringToken#mh:SHA-256:b0e80819310c7415a0348183bb08bdca243d7193f93e11a5f665f7ce1a9414d3