← Frederick & Sons
Flight Recorder · Primitive

Prove what happened.

Tamper-evident audit & notary for AI agents and the whole stack

Talk to us →Run the live demo ↓
01 — Live demoRuns the real module — no signup
3
public provenance cards
100%
mutation-kill across those cards
Signed
wallet attestation

Adversarially audited — verify the proof →

This is the shipping engine, not a video. Use it below — no signup, no sales call.

● live — this demo runs the real moduleopen full screen ↗
02 — What you getA plugin, not a platform
The engine
Hash-chained append-only log + Merkle inclusion proofs + on-chain anchoring — prove a single record was anchored without revealing the rest.
The delivery
A plugin, not a platform — drop it into your own stack. You receive a self-hostable module plus a hosted JSON API and its OpenAPI spec, so you compose Flight Recorder into your product instead of rebuilding this layer.
03 — PricingHosted · early access
$49–$199/mo hosted
hosted subscription · early access — we onboard you personally
Talk to us →
Free hosted core, ≤10k–100k events/moOptional $990–$1,500 one-time source license — by inquiry.
04 — DetailsLicense · trust · provenance
Built forAnyone who must prove what happened, immutably
LicenseHosted subscription — in early access. A self-host source license is available by inquiry.
TrustAdversarially audited · the proof is checkable — see our public provenance cards + a signed wallet attestation →
ProvenanceBuilt by Frederick & Sons · adversarially audited before ship — how it's built →

What happened should be provable — forever.