CRYPTOGRAPHIC PROOF ON EVERY TRANSACTION

AIRTIGHT

Triple Entry. One Truth.

The accounting platform built on a cryptographic ledger. Every transaction is mathematically verified, every record tamper-evident, every audit trail irrefutable.

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Patented · Triple-Entry Receipt System Patented · Cryptographic Audit Chain Innovation Protected
// triple-entry receipt · sha-256 verified · ed25519 signed
DEBIT
AUD 12,450.00
AUD 1,245.00
AUD 0.00
CRYPTOGRAPHIC PROOF
tx: a3f8b2e1... prev: 7d4c9a02... root: 2b8e1f77...
SHA-256 VERIFIED · ED25519 SIGNED
CREDIT
AUD 0.00
AUD 0.00
AUD 13,695.00
The Problem

Accounting software wasn't
built for the AI age.

QuickBooks is 40 years old. Xero bolted AI onto a legacy double-entry ledger. Not one platform has cryptographic proof of every transaction. Not one was architected with intelligence from the ground up.

QuickBooks
1983
Built for Windows 3.1. Ported to the web. AI features added as an afterthought. No cryptographic integrity. No immutable audit trail.
Xero
2006
Double-entry on a cloud database. Clean UI. But the ledger architecture is unchanged since the 15th century. Bolt-on AI cannot fix structural limitations.
MYOB
1991
Australian-first. But legacy architecture, legacy UI. No AI intelligence layer. No cryptographic proofs. Compliance modules are tacked on, not integrated.

No accounting platform was designed for the AI age. Every platform added AI to an existing product. AIRTIGHT is the first to start from first principles: what does accounting look like when every transaction has a cryptographic proof, every reconciliation is AI-verified, and the ledger itself is the source of truth?

Core Architecture

Not accounting with AI.
AI-native accounting.

Four architectural pillars that no existing platform has — or can easily retrofit.

Triple-Entry Cryptographic Ledger
Every inter-party transaction generates three entries: debit, credit, and a cryptographically signed receipt anchored to an immutable hash chain. Ed25519 signatures. SHA-256 Merkle tree. The third entry is not metadata — it is the proof.
Patented · Crown Jewel IP
AI-Native Intelligence
Intelligence is not a bolt-on. Every transaction is AI-categorised in real time. Anomaly detection runs on every ledger entry. R&DTI eligibility is assessed continuously. GST compliance is verified before you file. The AI layer cannot be removed — it is structural.
Real-Time · Continuous · Structural
Per-Tenant Envelope Encryption
Four-layer encryption architecture: CMK, KEK, DEK, field key. Every organisation's data encrypted with its own unique key. Cryptographic shredding on deletion — data becomes unrecoverable, not just deleted. Field-level encryption for TFN, bank details, and PII.
CMK → KEK → DEK → Field
20 Specialist Modules
SMSF, R&DTI, Trust Accounting (all 8 AU states), Payroll (STP Phase 2, 8-state LSL), Sharia-Compliant AAOIFI reporting, Auditor Portal, Investor Fund Accounting, AFSL compliance. Every module integrated into the cryptographic ledger — not siloed add-ons.
20 Modules · AU-Native · MENA-Ready
How It Works

Connect. Verify. Prove.

Three steps from raw bank data to cryptographically verified, AI-categorised financial truth.

01
Connect
Bank feeds, payroll systems, payment gateways, and 800+ integrations connect via open banking and direct APIs. Every inbound transaction is ingested into the ledger with nanosecond precision. No floating point. No approximation. Integer arithmetic only.
02
AI Categorises
Each transaction is categorised in real time by the AI intelligence layer — against your chart of accounts, your entity type, your jurisdiction. GST treatment verified. R&DTI eligibility flagged. Sharia compliance checked if applicable.
03
Cryptographic Proof
The triple-entry receipt is generated: debit record, credit record, and a cryptographically signed proof linking both — signed with Ed25519, hashed with SHA-256, anchored in a Merkle chain. Every receipt is independently verifiable.
20 Specialist Modules

Every module your practice
has ever needed. One platform.

Built for Australian complexity — SMSF, Trust, R&DTI, 8-state payroll — and MENA scale. Every module shares the same cryptographic ledger.

M-01
General Ledger
Core
M-02
Invoicing & AR
Core
M-03
Tax & BAS
AU-Native
M-04
Banking & Recon
Core
M-05
Reporting
Core
M-06
Payroll STP2
AU · 8 States
M-07
Accountant Portal
AU · AML/CTF
M-08
Trust Accounting
AU · 8 States
M-09
SMSF
AU · Div 293
M-10
Property
AU · Div 40/43
M-11
R&DTI
AU · 43.5%
M-12
Grants
AU · 8 Portals
M-13
Auditor Portal
Hash Verification
M-14
Investor Portal
IRR · Waterfall
M-15
AFSL
RG 166 · NTA
M-16
Sharia Accounting
AAOIFI · Zakat
M-17
Sharia Board
Fatwa Library
M-18
Notifications
EN + AR
M-19
Grant Scrapers
Auto-Match
M-20
Integrations
800+ Sources
SINGULARITY ECOSYSTEM

Connected Intelligence

AIRTIGHT does not operate in isolation. Through the SINGULARITY engine, its verified financial intelligence flows across connected platforms — turning accounting data into wealth strategy, development feasibility, and business health signals.

VESTBRIDGE →

Financial reporting feeds wealth intelligence

AIRTIGHT seals the books. VESTBRIDGE reads the signal — verified financials flow into portfolio valuation with cryptographic provenance, not self-reported spreadsheets.

STRATUM →

Development accounting and feasibility

STRATUM models the deal. AIRTIGHT proves the numbers — project cost tracking with triple-entry verification eliminates the gap between feasibility model and actual spend.

WELLSPRING →

Business financials inform personal wellness

AIRTIGHT tracks the business. WELLSPRING reads the stress signal — when cashflow tightens, the wellness engine adapts before the founder feels the burn.

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