ZeroH for Data Protection Officers

Prove what your AI never saw. Not just what it did.

ZeroH gives DPOs cryptographic, third-party-verifiable proof that personal data was redacted before it ever reached an AI model. Aligned to GDPR, EU AI Act, QCB, CBUAE, and PRA SS1/23 obligations. Bring-your-own-AI. No vendor lock-in.

Schedule a Demo Explore ZeroH Disclosure

AI vendors promise privacy. Regulators want proof.

GDPR Article 5 requires data minimisation. EU AI Act Article 12 requires logging of high-risk AI processing. QCB and CBUAE AI guidance require evidence of data governance. Mainstream AI vendors give you a privacy policy, not cryptographic evidence.

mainstream AI vendors produce cryptographic redaction proof

No proof of what AI actually saw

When staff send a prompt to ChatGPT or Copilot, you have a vendor assurance that data is not used for training. You do not have cryptographic evidence of which fields reached the model, which were masked, and under what policy. Audit logs are vendor-asserted.

64%

of EU enterprises flag AI as a privacy compliance gap

DPIAs are documentation, not enforcement

You can write a Data Protection Impact Assessment that says "PII is redacted before AI processing." Evidencing it is another matter. Most enforcement happens in code your DPO cannot inspect. The gap between policy and runtime is your exposure.

data residency regimes to satisfy simultaneously

Cross-border data residency is fragile

GDPR adequacy decisions, Schrems II, and Gulf data localisation rules demand evidence that personal data does not leave authorised jurisdictions. Mainstream AI inference is often offshore. Proving compliance is harder than achieving it.

The DPO-grade evidence stack

Cryptographic non-disclosure proof, regulator-grade evidence packs, and selective disclosure for sharing only what each stakeholder needs.

ZeroH Disclosure

Alpha

Cryptographic non-disclosure proof for every AI prompt

Intercepts every prompt before it reaches an AI, applies your data-disclosure policy at field level, and produces tamper-evident proof of what was redacted, when, under which rule, and what the AI never saw.

✓Field-level PII classification and redaction before any prompt reaches an AI
✓Tamper-evident proof of what was masked, when, and under which rule
✓BBS+ selective disclosure. Share proof without exposing data
✓On-premise data residency with Hedera anchoring
✓DPIA-ready audit trail aligned to GDPR Article 35
✓Bring-your-own-AI. Works with Copilot, Claude, ChatGPT, internal agents

Learn More

Trust Center

Live

Share privacy proof without exposing data

Public-facing portal where regulators, auditors, and data subjects verify your data protection posture cryptographically. BBS+ selective disclosure means each stakeholder sees exactly what they need. No over-exposure.

✓Cryptographic credential verification without raw data exposure
✓BBS+ selective disclosure for role-based access
✓Self-service verification for DPAs, auditors, and counterparties
✓Hedera blockchain anchoring for tamper-proof provenance

Explore Trust Center

ZeroH Platform

Live

Agentic AI security platform with full provenance

For organisations that run AI agents in regulated workflows, ZeroH delivers full agent action auditability, human delegation provenance, and knowledge controls. Every agent decision is signed and anchored.

✓Agent workflow orchestration with full action auditability
✓Human delegation provenance. Proof of who authorised what
✓Knowledge source controls per policy
✓Hedera blockchain-anchored immutable audit trails

Explore ZeroH Platform

From DPIA documentation to runtime cryptographic evidence

ZeroH closes the gap between what your DPIA says and what your AI actually does. With proof that holds up to a regulator audit.

Non-disclosure proof

Cryptographic evidence of what your AI never saw

Most audit logs prove what happened. ZeroH Disclosure proves what did not happen. That a specific PII field was redacted before the prompt reached the model, under a specific policy, at a specific time. BBS+ signatures let you prove the negative without exposing the underlying data.

ZeroH Disclosure

Cross-border data residency

On-soil anchoring for Gulf and EU data residency rules

Originals stay on infrastructure under your control. Cryptographic anchors are written to Hedera, with on-soil consensus nodes in many jurisdictions. Evidence your data did not leave authorised jurisdictions, in a form your DPA can verify independently.

ZeroH DisclosureZeroH Platform

ZeroH Disclosure selectively sharing redacted content into SharePoint with on-soil Hedera anchoring

DPIA enforcement

Your DPIA becomes runtime policy, not just documentation

Disclosure policies in ZeroH are machine-executable. The policy your DPIA describes is the same policy that runs in front of every AI prompt. When the auditor asks "show me the policy enforcement", you show them the signed runtime. Not a Word document.

ZeroH Disclosure