CooL — The Trust Layer for Artificial Intelligence
Every day…
Artificial Intelligence makes decisions…
…that change human lives.
scrollA diagnosis.
A recommendation.
A life.
A diagnosis. A recommendation. A life. When an AI helps save a life… Who proves what it actually decided?
A business.
A loan.
A future.
A business. A loan. A future. When AI decides who gets funding… Who proves why?
A student.
A recommendation.
A career.
A student. A recommendation. A career. When AI shapes someone's future… Who verifies that decision?
Justice begins with evidence.
But what if the evidence comes from AI?
Justice begins with evidence. But what if the evidence comes from AI? Can that evidence ever be proven?
A résumé.
An interview.
A career.
A résumé. An interview. A career. When AI decides who gets hired… Who proves its decision?
We trusted AI…
We never learned to trust its decisions.
Because we could never prove them.
CooL
The Trust Layer for Artificial Intelligence
Five industries. Five lives. One question.
How do we know the machine was right?
Or fair. Or even what it claimed to be.
Every decision leaves a record.
- Subject
- Applicant #4471
- Decision
- DECLINED
- Confidence
- 0.41
- Model
- risk-v2.3.1
sha256: 9f2c4e…a17b · audit log: consistent
And no one would ever know.
- Subject
- Applicant #4471
- Decision
- DECLINED
- Confidence
- 0.41
- Model
- risk-v2.3.1
sha256: 9f2c4e…a17b · sealed at source
There is another way.
Don’t trust us.
Verify it yourself.
Every decision is sealed the instant it’s made — beyond anyone’s reach. Even ours.
The anatomy of proof
Four proofs of the same fact.
Each binds one truth — which model ran, on which input, producing which output, and when. To forge a record you must defeat all four, at once.
binding_hash9f2c4e7a3b81d05c…a17b4d2e
No operator can do all four. Not even us.
Where does a decision happen, so no one can reach inside?
A sealed room.
The work happens inside a chamber whose walls prove they were never opened. You can check the seal from outside — without ever being let in.
Trusted Execution Environment · remote attestation
How can a record never be quietly changed?
Make everyone a witness.
Independent witnesses see every record. A ledger that only grows — pages can be added, never torn out or rewritten. The fingerprint is set in public bedrock.
Witness network · transparency log · blockchain anchoring
- Subject
- Applicant #4471
- Decision
- DECLINED
- Confidence
- 0.41
- Model
- risk-v2.3.1
anchored · block #842,113 · 7 witnesses
Will the proof still hold — and can anyone check it?
Proof that outlives everything.
Locks built to resist tomorrow’s quantum computers, and proof you can carry away — verified in a browser, offline, with no trust in our servers or us. CooL proves exactly what happened: which model ran, on which input, producing which output, and when. Nothing it cannot cryptographically back.
ML-DSA-65 (post-quantum) · offline WASM verifier
- Hardware attestation (TEE)—
- Post-quantum signature—
- Inclusion proof + witnesses—
- Public anchor—
The same world.
Now every decision can be proven.
A diagnosis you can question. A loan you can appeal. A future you can trust.
The Trust Layer for Artificial Intelligence
Proof for the age of AI.
The black box for AI. CooL creates an unforgeable record of which model ran, on which input, producing which output, and when — hardware-attested, post-quantum, and verifiable by anyone offline. Provable by anyone, changeable by no one. Even us.
Don’t trust us. Verify it yourself.