How does ZeroH Privacy Cloud protect documents on Google Drive and SharePoint?

ZeroH sits as a preprocessing layer between your users and cloud platforms. Documents are versioned, privacy-checked against regulatory policies (Qatar PDPPL, AAOIFI, QFC), and stored on IPFS Qatar nodes before being released to the cloud platform. Every version is anchored on Hedera with a Verifiable Credential.

What is the difference between Draft and Anchored documents?

Draft documents are work-in-progress edits that have not been privacy-checked or anchored. They show a yellow "Draft" badge and cannot be shared. Anchored documents have passed privacy policy checks, are stored on IPFS, anchored on Hedera with a Verifiable Credential, and show a green "Anchored" badge with a version number.

How does tamper detection work?

Every anchored document version has its content hash recorded on Hedera. If the document is modified outside of ZeroH (directly on the cloud platform), the hash mismatch is detected, the file is quarantined, and the DPO is alerted with full forensic details.

Where is document data stored?

Original documents are stored on IPFS nodes hosted in Qatar, ensuring data residency compliance. Only privacy-processed versions are released to cloud platforms. Metadata and audit events are anchored on Hedera Hashgraph.

ZeroH Privacy Cloud — Deterministic Data Privacy

Deterministic Privacy for Cloud

Your documents. Your rules. Zero compromise.

No AI. No probabilistic outputs. Fully rule-based regulatory compliance. Data never leaves on-premise / on-soil infrastructure. Every document is version-controlled, stored on Qatar IPFS nodes, and anchored on Hedera before touching any cloud platform.

Works with your existing stack

GDGoogle Drive

SPSharePoint

OLOutlook

100%Data ResidencyQatar IPFS Nodes

< 2sProcessing TimePer Document

3Platform IntegrationsDrive · SharePoint · Outlook

Version Control

Draft and Anchored states for every document

IPFS Storage

Qatar-hosted nodes for data residency compliance

Hedera Anchoring

Tamper-proof blockchain verification

Ali Insights

Deterministic, regulation-based document analysis — no AI required

ZeroH Share Links

Platform-independent secure sharing

Tamper Detection

Automatic hash verification and quarantine

Scroll to explore the architecture

How It Works

Every file passes through a privacy-first pipeline before touching any cloud platform or AI system.

ZeroH Engine

Privacy preprocessing — classification, policy mapping, version control

Document classification against regulatory policies
AAOIFI FAS 4, Qatar PDPPL, QFC Regulations
AI-assisted compliance suggestions
Version control: Draft → Anchored lifecycle

View Full Architecture

Selective Disclosure

One Document. Five Views. Zero Risk.

The same employment contract shared across HR, Finance, Legal, an external advisor, and AI — each seeing only the fields they need. Powered by BBS+ cryptographic proofs.

ProtectedRegulated PII — cannot be overridden

HiddenSensitive — hidden by default, authorized reveal possible

VisibleNon-sensitive metadata — visible to all authorized roles

Staff Employment & Compensation Contract

20 Visible0 Hidden

PEmployee NameSarah Al-Thani

PQatar ID28476019352

PDate of Birth1988-03-14

PBank Account (IBAN)QA58 DOHA 0000 1234 5678 9012 3

PHome AddressVilla 42, Al Dafna, West Bay, Doha

HBase SalaryQAR 45,000/month

HHousing AllowanceQAR 12,000/month

HBonus Structure15% annual performance bonus

HProbation Terms6 months with 30-day notice

HTermination Clause90-day notice, 3-month severance

HNon-Compete12 months post-termination in GCC

HShariah Compliance RefSCR-2024-QA-0847

VContract TypeFull-Time Employment

VDepartmentRisk & Compliance

VStart Date2024-09-01

VDuration2 years (renewable)

VGoverning LawQatar Labour Law No. 14 of 2004

VJurisdictionState of Qatar

VCurrencyQAR (Qatari Riyal)

VLast Modified2024-08-15T14:30:00Z

Why HR Director sees this view

HR Director has unrestricted access to all contract fields — PII, financial, and metadata. This is the only role that sees Protected data. Full access is required for employment lifecycle management.

Experience the Workspace

Step inside hyper-realistic platform demos. See exactly how ZeroH integrates with the tools you already use — upload, edit, share, all privacy-anchored.

Google Drive

Navigate folders, right-click for ZeroH actions, view anchored file metadata

SharePoint

Browse document libraries, use the command bar, sort and filter with ZeroH status

Outlook

Read email notifications for shared documents and ZeroH compliance alerts

Launch Workspace Demo

Ali Insights

Deterministic Document Analysis

Rule-based regulatory analysis. Every suggestion is traceable to a specific regulation article. No AI. No probabilistic outputs. Only what you allow is redacted.

DeterministicRule-BasedNot AIFull HITL ControlAuditable

Source Document

mudarabah-agreement-2026.pdf

Islamic Finance Contract

Document TypeMudarabah Finance Agreement

CounterpartyAl Rayyan Holdings International Ltd.

Facility AmountQAR 45,000,000

Profit-Sharing Ratio70:30 (Rabb al-Maal : Mudarib)

GuarantorKhalid Al-Thani, CEO

Shariah Board ApprovalPending reference

Governing LawState of Qatar

Net Worth CovenantQAR 120,000,000

PII Detected4 fields flagged for redaction

Ali Insights (5)

AddRequiredAAOIFI FAS 4 §12.3

Add explicit disclosure of profit-sharing methodology and basis of calculation

FAS 4 §12.3 requires transparent disclosure of the basis upon which profit is calculated and distributed between Rabb al-Maal and Mudarib

ModifyRequiredQatar PDPPL Art. 14

Redact guarantor identity and reference number; classify as Protected

Personal guarantor details constitute personal data under PDPPL Art. 14 and must not be transmitted to cloud platforms without explicit consent

AddRequiredAAOIFI Governance Std §5

Include Shariah board member names and resolution reference in compliance section

AAOIFI Governance Standard §5 requires identification of Shariah board members who approved the transaction structure

ModifyRecommendedQFC DPR 2005 Art. 7(2)

Hide exact facility amount for cloud distribution; classify as Hidden

QFC Data Protection Regulations 2005 Art. 7(2) — financial amounts should be hidden when shared with third-party platforms

RemoveRequiredQatar PDPPL Art. 3

Remove signatory names from cloud-distributed version

Individual names of authorized signatories are personal data; PDPPL Art. 3 defines natural person data as protected

Immutable Evidence

Audit Trail

Every action on every document is permanently recorded, content-hashed, and anchored on Hedera. The record cannot be altered, deleted, or back-dated.

Total Events

Anchored Events

Verifiable Credentials

Integrity Alerts

Version:

Schema Created14 Feb 2026, 09:00 UTC

Actor: System

Classification schema created for Mudarabah contracts

Policy: AAOIFI FAS 4
Fields mapped: 47
Sensitive fields: 12

Hedera 0.0.1234567-17079048...

Schema Approved14 Feb 2026, 11:30 UTC

Actor: Dr. Khalid Al-Mansour (DPO)

Schema approved by Data Protection Officer

Approval ref: DPO-2026-0142
Review duration: 2h 30m

Hedera 0.0.1234567-17079138...

Document Uploaded15 Feb 2026, 10:00 UTC

Actor: Sarah Al-Rashid

Mudarabah Investment Contract uploaded via ZeroH

Source: Google Drive
Size: 2.4 MB
Content hash: sha256:a1b2c3...

IPFS CID

bafybeigdy...y55fbzdi

Hedera 0.0.1234567-17079984...

Upload Approved15 Feb 2026, 10:15 UTC

Actor: Ahmed Hassan

Upload approved — privacy checks passed

Policy: AAOIFI FAS 4
Sensitive fields redacted: 8
Compliance score: 100%

Hedera 0.0.1234567-17079993...

VC Issued15 Feb 2026, 10:30 UTC

Actor: System

Verifiable Credential issued for v1

VC type: DocumentIntegrity
Issuer: ZeroH Privacy Cloud
Valid from: 2026-02-15

Verifiable Credential

did:hedera:mainnet:z6MkpTHR8VNs5xhA7bDnR8VNs5xhA7bD_0.0.1234567

Hedera 0.0.1234567-17080002...

Draft EditedNOT ANCHORED27 Feb 2026, 16:00 UTC

Actor: Sarah Al-Rashid

Document edited via ZeroH — profit ratio updated

Reason: Shariah board recommended profit ratio adjustment

AI assist: AAOIFI FAS 4 §12.3 compliance
Changes: profit ratio 60:40 → 55:45
Status: DRAFT — not anchored

Version Published28 Feb 2026, 14:15 UTC

Actor: Sarah Al-Rashid

Version 2 published — profit ratio updated per Shariah board

Reason: Updated profit ratio per Shariah board recommendation

Replaces VC: z6MkpT...
Share links auto-updated
IPFS pinned to Qatar nodes

Verifiable Credential

did:hedera:mainnet:z6MknQR8VNs5xhA7bDnR8VNs5xhA7bDw_0.0.1234568

Replaces VC

z6MkpTHR8VNs...

IPFS CID

bafybeihko...abiyhd4u

Hedera 0.0.1234567-17091369...

Draft EditedNOT ANCHORED05 Mar 2026, 11:00 UTC

Actor: Fatima Al-Khatib

Document edited — added personal guarantor redaction

Reason: Personal data protection compliance

AI assist: Qatar PDPPL Art. 14
Changes: Section 5 redacted
Status: DRAFT — not anchored

Version Published06 Mar 2026, 09:45 UTC

Actor: Fatima Al-Khatib

Version 3 published — guarantor redaction per PDPPL

Reason: Added personal guarantor redaction per PDPPL Art. 14

Replaces VC: z6MknQ...
Share links auto-updated
IPFS pinned to Qatar nodes

Verifiable Credential

did:hedera:mainnet:z6MkpTHR8VNs5xhA7bDnR8VNs5xhA7bD_0.0.1234569

Replaces VC

z6MknQR8VNs5...

IPFS CID

bafybeickl...g5ykl4mo

Hedera 0.0.1234567-17097207...

Chain ends here — All events above are anchored on Hedera with IPFS content hashes. Any integrity violation will trigger automatic quarantine and DPO alert.

Get Started

Ready to Protect Your Cloud?

See how ZeroH Privacy Cloud handles your regulatory framework and document workflows. Private demo, no commitment.

Your information is handled under Qatar PDPPL. No marketing emails.

privacy@bladelabs.io·

Doha, Qatar·Prague, Czech Republic