# How to Verify a ChainOfFact Evidence Bundle

ChainOfFact evidence bundles are designed to be verified independently.
No account, API access, or trust in ChainOfFact is required.

## What You Need

- The ZIP archive you received
- Any standard SHA-256 hashing tool

## Verification Steps

1. Extract the ZIP archive
2. Locate hashes.json
3. Compute the SHA-256 hash of events.json
4. Compare your result to the value in hashes.json
5. Repeat for chain_state.json

## Understanding Results

MATCH — Records are intact and consistent
MISMATCH — Tampering detected
ABSTAIN — Continuity broken or incomplete
UNKNOWN — No evidence recorded

## Important Limitations

- No compliance or safety guarantees are made
- No interpretation or judgment is provided
- Absence of data is preserved explicitly

ChainOfFact records facts only.
Interpretation is the responsibility of the reviewing party.

## Command Line Examples

macOS / Linux:
shasum -a 256 events.json

Windows:
certutil -hashfile events.json SHA256

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Canonical URL: https://chainoffact.com/verify