Long-Term Verification Continuity
Legacy Verification
Provide controlled verification methods for valid historical records created under older technical profiles.
Purpose
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.
Operational flow
Legacy Verification lifecycle.
01
Detect obsolescence risk
02
Select approved migration path
03
Preserve old verification metadata
04
Add renewal / migration evidence
05
Maintain legacy verification
Object model
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
Operational state
Designed for progressive activation.
Design horizon35+ years
ApproachMigration-based
Crypto profileAgile
Legacy supportPlanned
Production status must always be sourced from the deployed service and published through System Status; this static package does not claim backend activation.
Related PAR domains