Compliant Privacy

Compliance Without Custody.

The only privacy infrastructure designed for regulated institutions.

Banks, custodians, ETF providers, and stablecoin issuers need privacy for competitive reasons and compliance for regulatory reasons. These have always been in tension. H33 resolves both simultaneously.

STARK proves. H33-74 attests. 32 bytes anchor. HATS verifies.
Schedule Demo Privacy Layer
Banks | Custodians | ETF Providers | Stablecoin Issuers | Regulated Exchanges
The Institutional Dilemma
Privacy and compliance have always been enemies.
Institutions need privacy to protect competitive positions -- trading strategies, portfolio allocations, client relationships, counterparty networks. But regulators need visibility to enforce AML, sanctions screening, investor protections, and market integrity. Every existing solution forces a choice between the two. H33 eliminates the choice.
Full Transparency

Reveal everything

Competitors see your positions. Counterparties front-run your trades. Client lists become public. Compliance satisfied, competitive advantage destroyed.

Privacy Tools

Hide everything

Tornado Cash, mixers, privacy chains. Regulators cannot verify compliance. Enforcement actions follow. Institutional adoption impossible.

H33 Compliant Privacy

Prove compliance without revealing competitive information.

STARK proofs verify that regulatory requirements are satisfied. The regulator sees a cryptographic attestation that the institution passed AML, holds adequate reserves, or screened against OFAC. The regulator never sees the underlying positions, counterparties, or transaction details.

How It Works
Four steps. No data exchange.
The institution generates a STARK proof that a compliance statement is true, without revealing the data behind it. H33-74 attests the proof with three post-quantum signature families. A 32-byte commitment anchors on-chain. The HATS verifier confirms independently.
1
STARK proves
Compliance statement verified
→
2
H33-74 attests
Three PQ families sign
→
3
32 bytes anchor
On-chain commitment
→
4
HATS verifies
Independent confirmation
Who Needs This
Every regulated institution holding digital assets.
Banks

Transaction Privacy + AML Compliance

Process transactions privately while proving every transfer passes AML screening.

  • Wire transfers without counterparty exposure
  • AML compliance proof per transaction
  • Sanctions screening without revealing parties
  • Correspondent banking privacy
  • Regulatory reporting without data leakage
Custodians

Holdings Privacy + Reserve Proof

Prove you hold what you claim without revealing positions.

  • Proof of reserves without balance disclosure
  • Client segregation attestation
  • Asset-under-custody verification
  • Insurance coverage proof
  • Audit-ready evidence packages
ETF Providers

Portfolio Privacy + Regulatory Reporting

File reports and satisfy regulatory requirements without front-running risk.

  • NAV proof without position disclosure
  • Rebalancing attestation without timing data
  • SEC 13F compliance without public exposure
  • Authorized participant verification
  • Creation/redemption privacy
Stablecoin Issuers

Travel Rule Compliance Without PII Exchange

Meet FinCEN and FATF travel rule requirements without transmitting personally identifiable information between counterparties.

  • Originator/beneficiary attestation without PII
  • Reserve backing proof without portfolio detail
  • Cross-border compliance without data residency issues
  • Continuous monitoring attestation
The Principle
Compliance without surveillance.
Traditional compliance requires institutions to reveal everything so that regulators can verify anything. This creates surveillance infrastructure masquerading as regulatory compliance. Compliant Privacy inverts the model: verify the claims that matter, minimize the exposure that does not, and avoid every unnecessary disclosure.
Verify Claims

The regulator learns that a specific compliance statement is true. "This institution passed AML screening." "Reserves exceed liabilities." "OFAC screening completed within 24 hours." The claim is verified. The underlying data is not.

Minimize Exposure

No transaction details, counterparty lists, portfolio positions, or client identities leave the institution's boundary. The proof is enough. The data stays home.

Avoid Disclosure

Every byte of data shared beyond what compliance requires is unnecessary risk. PII liability. Breach surface. Competitive intelligence leakage. Compliant Privacy eliminates all of it.

Independent Verification

The HATS verifier is open source. Regulators verify attestations without trusting H33, the institution, or any third party. Mathematics replaces trust.

Attestation Epochs
Compliance cadences built into the protocol.
Different compliance requirements have different refresh cadences. Attestations are time-bound, revocable, and automatically enforced. When an attestation expires, the institution must re-verify to maintain compliance status.
90 days
KYC Identity

Identity verification attestation. Client re-verification at standard regulatory intervals. Auto-expiry enforced on-chain.

24 hours
OFAC Screening

Sanctions screening refreshed daily. Matches real-world OFAC list update cadence. Stale screening automatically invalidates compliance status.

1 year
Accredited Investor

Accredited investor status valid for 12 months per SEC guidance. Institutional eligibility verified without revealing financial statements.

Portable Compliance
Verify once. Use across protocols.
A single compliance attestation works across every protocol, chain, and counterparty that supports the HATS standard. Institutions verify once. Counterparties check the same 32-byte commitment. No repeated due diligence. No redundant data collection.
Today

Every counterparty runs independent due diligence. Banks submit the same compliance documentation to dozens of counterparties. Each submission creates a new data exposure point. Each is a breach target.

With Compliant Privacy

Institution attests once. 32-byte proof on-chain. Every counterparty verifies the same commitment. Zero document duplication. Zero PII exposure. Compliance travels with the institution.

Regulator Verifiable
No vendor trust required.
The HATS verifier is public and open source. Regulators, auditors, counterparties, and courts can independently verify any attestation without trusting H33, the institution, or any intermediary.
regulator terminal
$ cargo install hats-verifier $ hats verify compliance-attestation.json VALID -- All checks passed Checks: 24 passed, 0 failed Attestation: aml-screening-v1 Institution: [redacted] Expiry: 2026-11-15T00:00:00Z Duration: 83us PQ Sigs: ML-DSA-65 + FALCON-512 + SLH-DSA-128f

The HATS verifier is open source. No API key. No vendor cooperation. No platform dependency. Read the HATS standard.

Related
Explore the privacy infrastructure.
Privacy Layer
H33-74
HATS Standard
Privacy Attestation
Institutional Privacy
Post-Quantum Privacy
Solana Privacy
Bitcoin Privacy
Ethereum Privacy

Privacy infrastructure for the institutions that cannot afford to get it wrong.

Compliance without custody. Privacy without opacity. Verification without trust.

Schedule Demo

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