ChainOfFact Documentation

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

Core Concepts

Events, append-only ledger, absence, and verification principles
API Reference

Complete endpoint documentation with request/response schemas
Proof States

MATCH, MISMATCH, ABSTAIN, UNKNOWN — what they mean

Get an API key

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.

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