Proof a real human did the thing.

SignalFang produces verifiable, tamper-evident proof that a human initiated a critical digital action — without storing sensitive message content.

Open Verify Console Request Pilot Access View API Health

What it is

A lightweight proof service for “high-consequence” moments: approvals, releases, payments, access changes, configuration edits, and any operation where you need audit-grade confidence that the actor was real.

Payload safe: stores proofs, not messages

Fast: HTTP API + deterministic receipts

Practical: works with existing systems

How it works

Initiate

A human triggers the action (app / device / ops tool).

Record

SignalFang writes a tamper-evident event receipt.

Verify

Anyone can validate the receipt and integrity chain.

Built for reality

Enterprises are drowning in AI-generated actions that look “legit” because they used real credentials. SignalFang is about proving human initiation — not vibes, not screenshots, not “trust me bro.”

Quick links

/verify — local key console
/api/health — public status
/api/info — read-key required
/api/event/latest — read-key required

Contact

michael@signalfang.com
Pilot deployments: invite-only (for now).