Use cases

AI decision logs

Notarize the hash of an agent's decision record so it cannot be quietly rewritten later.

Evidence chains

Anchor records of a hash-chained ledger. The sample receipt on these pages notarizes KEYSTONE ledger record 0.

Board and legal documents

Prove a specific version existed and was committed, without sharing it.

Audit handoffs

Give an auditor a receipt they can check with no access to your systems.

Model and dataset releases

Commit the hash of weights or data at release time.

Multi-party agreements

A shared, ordered record no single party, including us, can rewrite alone.

Pricing

No public price yet. Free keys can notarize up to 120 digests per hour for evaluation. Pilots by arrangement.

FIRME AI CORPORATION · CAIN-42 is a Byzantine trust fabric. Numbers marked "our own check" were run by us, not by an independent party. Nothing on these pages is a certification.