# ChainOfFact Documentation

ChainOfFact is an append-only evidence system.
These documents describe how to record and verify facts.

## Documentation Sections

### Core Concepts
Events, append-only ledger, absence, and verification principles.
See: https://chainoffact.com/docs/concepts

### API Reference
Complete endpoint documentation with request/response schemas.
See: https://chainoffact.com/docs/api

### Proof States
MATCH, MISMATCH, ABSTAIN, UNKNOWN — what they mean.
See: https://chainoffact.com/docs/states

## Get an API Key
https://chainoffact.com/pricing

## Public Disclosure Warning

Some endpoints may generate a publicly accessible, immutable verification artifact.

Once created:
- The artifact cannot be modified or revoked
- The artifact may be accessed by third parties
- The artifact may be retained indefinitely

ChainOfFact does not evaluate whether publication is appropriate, safe, lawful, or advisable.

You are responsible for determining whether public disclosure is intended.

---

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