Privacy Attestation

Prove It Without Showing It.

Name: H33 Privacy Attestation
Brand: H33

STARK proofs verify compliance claims without revealing the underlying data. Attestable privacy.

The statement is verified. The data behind it is not. This is the technical architecture of how privacy attestation works -- from STARK generation through H33-74 signing to on-chain commitment.

Not generated. Not summarized. Rendered from proof.

Schedule Demo HATS Standard

The Problem

Traditional compliance proves compliance by showing everything.

To prove you are compliant, you reveal your data. Every KYC check means handing over a passport. Every AML review means exposing transaction history. Every accredited investor check means disclosing net worth. The compliance infrastructure is also the surveillance infrastructure.

PII Liability

Every compliance check creates a database

Passports, SSNs, financial statements, biometrics. Each stored in a new system. Each a breach target. Equifax, Capital One, Ledger -- the compliance database is always the one that leaks.

Breach Risk

Data at rest is data at risk

Compliance vendors store your clients' identity documents. Their breach becomes your liability. You proved compliance by creating the exact vulnerability compliance was supposed to prevent.

Privacy Attestation

Prove the statement. Never reveal the data.

A STARK proof verifies that a compliance statement is true without revealing the evidence behind it. The verifier learns exactly one thing: the statement is true. Nothing else.

Privacy Attestation

What the verifier learns. What the verifier never learns.

Every attestation is a pair: the claim that is verified, and the data that is hidden. The proof is complete -- the verifier has mathematical certainty that the claim is true. But the proof reveals nothing beyond the claim itself.

Verified: "User is over 21"

The verifier knows the user satisfies the age requirement. The verifier does not know when the user was born, how old they are, or which document was used to prove it.

Verified: "Wallet holds >= $1M"

The verifier knows the wallet meets the threshold. The verifier does not know the actual balance, which tokens are held, or any transaction history.

Verified: "Transaction is OFAC-compliant"

The verifier knows the transaction passed sanctions screening. The verifier does not know who the counterparty is, how much was transferred, or the payment routing.

Architecture

Four layers. From proof to commitment.

Each privacy attestation passes through four layers. The STARK proof is hash-based and post-quantum secure. The H33-74 attestation adds three independent PQ signature families. The on-chain commitment is 32 bytes. The full proof lives off-chain in Cachee for retrieval and verification.

STARK Proof

Hash-based, post-quantum secure. Proves the compliance statement is true. No trusted setup. Transparent verification. Collision-resistant under SHA3-256.

H33-74 Attestation

Three post-quantum signature families (ML-DSA, FALCON, SLH-DSA). Three independent mathematical hardness assumptions. 74 bytes total. Breaks only if all three are simultaneously broken.

On-Chain Commitment

32-byte SHA3-256 hash anchored on any supported chain -- Solana, Bitcoin, Ethereum, Base, Arbitrum. Immutable. Timestamped. Cheapest possible on-chain footprint.

Cachee Storage

Full proof and attestation metadata stored off-chain. Retrievable by commitment hash. Post-quantum attested at every layer. No PII stored -- only cryptographic proofs.

Verification

Three verification speeds. One trust model.

Any party can verify any attestation at any time. Verification speed depends on how deep you need to go. All three tiers produce the same answer -- only the verification depth differs.

<400ms

On-Chain Check

Confirm the 32-byte commitment exists on-chain and is not expired. Sufficient for real-time transaction gating.

<5ms

H33-74 Verify

Fetch 42 bytes from Cachee and verify three post-quantum signatures. Confirms the attestation was issued by H33 and has not been tampered with.

<100ms

Full STARK Verify

Fetch the complete proof from Cachee. Run the public HATS verifier. Mathematical certainty. Trust only the proof.

Trust Model

What the attestation proves. What it does not.

Honest trust models define boundaries. Privacy attestation is precise about what it guarantees and what falls outside its scope. The proof is the proof. Nothing is implied beyond it.

The attestation proves

The compliance statement is mathematically true
The proof was generated from valid inputs
Three independent PQ signature families attested it
The commitment was anchored on-chain at a specific time
The proof has not been tampered with since issuance
The attestation has not expired

The attestation does not prove

That the original data source was honest
That the user's circumstances have not changed
That future compliance will be maintained
Anything about data not included in the proof
That the attested party will act in good faith
Anything beyond the specific claim stated

Attestations are time-bound and revocable. Compliance is continuous, not permanent. Read the HATS standard for the full trust model specification.

The Principle

Not generated. Not summarized. Rendered from proof.

A privacy attestation is not a summary of compliance. It is not a report that a vendor generated. It is not a certification that an auditor signed. It is a cryptographic proof that a specific statement is true, verified by mathematics, attested by three post-quantum signature families, and anchored immutably on-chain. The verifier does not trust the issuer. The verifier trusts the proof.

                
                attestation structure
            
// What an attestation contains
{
  "claim":         "user.age >= 21",
  "stark_proof":    "[256 bytes, hash-based, PQ-secure]",
  "h33_74": {
    "ml_dsa_65":   "[MLWE lattice signature]",
    "falcon_512":  "[NTRU lattice signature]",
    "slh_dsa_128f":"[stateless hash signature]"
  },
  "commitment":    "0xa7f3...32 bytes on-chain",
  "cachee_key":    "0xb2e1...retrieval key",
  "expires_at":    "2026-08-15T00:00:00Z",
  "revocable":     true
}

// What the attestation does NOT contain
// - birthdate
// - identity document
// - personal data of any kind

Prove compliance. Reveal nothing.

Privacy attestation replaces data exchange with cryptographic proof. The statement is verified. The data stays home.

Schedule Demo

H33.ai, Inc. · Patents Pending · HATS Standard · Independent Verification