35+ Year Design Horizon
Define a minimum design horizon for verification continuity through planned migration, renewal and legacy support rather than frozen technology.
One function. Explicit trust boundaries.
Long-term verification depends on migration discipline, cryptographic agility and preserved metadata—not on assuming one algorithm or format lasts forever.
Every material state transition should remain attributable to an authenticated actor, an authority context, a timestamp and the evidence required to reconstruct what happened.
35+ Year Design Horizon lifecycle.
Detect obsolescence risk
Select approved migration path
Preserve old verification metadata
Add renewal / migration evidence
Maintain legacy verification
Minimum verification context.
The exact schema can vary by object class and policy version, but the verification layer should be able to resolve these core dimensions.
- Technical profile version
- Algorithm profile
- Schema version
- Timestamp evidence
- Migration event
- Legacy verifier
- Compatibility status
- Migration history
Designed for progressive activation.
Production status must always be sourced from the deployed service and published through System Status; this static package does not claim backend activation.