Beta · Lean 4 Formal Verification

Mathematically Proven Accounting Compliance

Leverage Lean 4 formal proofs to help assess compliance against 9 Global Accounting Standards (ASC 606, IFRS 15, ASC 842...). Augment audit workflows with formal verification.

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-- Illustrative Lean 4 predicate
def valid_contract
  (c : Contract) : Prop :=
  c.approved
  ∧ c.commercial_substance
  ∧ c.measurable_consideration
  ∧ c.collectibility_probable

-- 250+ predicates: 9 Global Accounting Standards
-- Revenue · Leases · Impairment · Intangibles
Platform

Beyond Spreadsheet Reviews

Augment manual compliance checks with formal verification.

Tamper-Proof Certificates

ED25519-signed proof certificates. Attach to workpapers — auditors can independently verify.

Lean 4 Verified

Claims are evaluated against our Lean 4 predicate library covering 9 accounting standards. Formal verification, not AI opinion.

Fast Verification

Submit a claim, get a verified proof certificate in seconds. Batch multiple claims in parallel.

MCP-First Architecture

Works inside Claude Desktop, Cursor, VS Code. Your AI agent verifies claims from local files — just ask.

250+ Formal Predicates

9 Global Accounting Standards (including revenue recognition, leases, and impairment), all formally encoded in Lean 4.

Batch Processing

Upload PDFs, memos, or workpapers. Auto-decompose into atomic claims. Verify multiple claims in parallel.

How It Works

From Claim to Proof in Seconds

Watch your revenue claim flow through the verification pipeline.

Claim

|

Your accounting scenario

Analyze

valid_contract distinct_obligation allocate_by_ssp

Standard predicates matched

Prove

Waiting…

Lean 4 kernel type-check

Certify

✓ PASS
ed25519:a3f8…c4d2

Tamper-proof certificate

Pricing

Transparent Pricing for Enterprise Accuracy

Every plan includes ED25519-signed certificates, Lean 4 proofs, and MCP integration.

Professional

For smaller accounting teams

$499 /mo
  • 500 verifications/month
  • Signed proof certificates
  • MCP integration
  • Standard support
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Recommended

Enterprise

For growth-stage enterprises

$2,499 /mo
  • 5,000 verifications/month
  • Everything in Professional
  • Batch processing (50 claims)
  • Priority support
  • API access
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Platform

For high-volume corporations

$9,999 /mo
  • 50,000 verifications/month
  • Everything in Enterprise
  • Custom predicate configuration
  • Priority email support
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Stop Guessing, Start Verifying

Replace spreadsheet reviews with formal verification.

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