Proof States
ChainOfFact verification returns one of four states.
| State | Meaning |
|---|---|
MATCH |
Evidence exists and is internally consistent |
MISMATCH |
Recorded data was altered or corrupted |
ABSTAIN |
Continuity is broken or conflicting |
UNKNOWN |
No evidence was recorded |
These states are exhaustive. ChainOfFact does not return explanations.
Why ABSTAIN Matters
- MISMATCH = tampering detected
- ABSTAIN = broken continuity (missing or conflicting history)
This distinction matters in legal contexts.