GaussBook
CONSOLIDATED 5-PART CFO, CONTROLLER & EXTERNAL CPA SIGN-OFF DOSSIER
Verify Ed25519 Live ↗

Part I — Executive Treasury & Working-Capital Summary (Friday Pilot Cohort — Commercial Construction & Specialty Trades)

This Audit Packet consolidates the balance-sheet schedules, double-entry ERP journal postings, U.S. GAAP ASC 405-20-40-1 legal novation authority, and Microsoft Z3 formal verification proofs for Certificate CERT-Z3-ASC40520-107F0C83D1DB.

Gross Payables Before
$320,000.00
Extinguished ($0 Cash)
$240,000.00 (75.00%)
Residual Payables After
$80,000.00
1.00% Fee / Interest Saved
$2,400.00 / Saves $4,800.00

Part II — Before & After Corporate Balance Sheet Schedule

Participating Entity ERP Gross AP Before AP Extinguished Residual AP After Δ Net Equity (AR − AP)
Ready-Mix Concrete Supplier (Participant C) NETSUITE $145,000.00 −$80,000.00 $65,000.00 $0.00 (Invariant)
Electrical Subcontractor (Participant D) QUICKBOOKS_ONLINE $0.00 −$0.00 $0.00 $0.00 (Invariant)
General Contractor (Participant A) QUICKBOOKS_ONLINE $95,000.00 −$80,000.00 $15,000.00 $0.00 (Invariant)
Structural Steel Supplier (Participant B) QUICKBOOKS_ONLINE $80,000.00 −$80,000.00 $0.00 $0.00 (Invariant)

Part III — Double-Entry ERP Journal Writeback Schedule

Invoice ID Debtor Entity Creditor Entity GL Account Posting Amount Extinguished
WB-ROOM-ROOM_PILOT_DEMO_2026-CYC-01-node_rm_concrete_c (ROOM-ROOM_PILOT_DEMO_2026-CYC-01) Ready-Mix Concrete Supplier (Participant C) QUICKBOOKS_ONLINE 2000 A/P Debit ↔ 1200 A/R Credit $80,000.00
WB-ROOM-ROOM_PILOT_DEMO_2026-CYC-01-node_rm_gc_a (ROOM-ROOM_PILOT_DEMO_2026-CYC-01) General Contractor (Participant A) QUICKBOOKS_ONLINE 2000 A/P Debit ↔ 1200 A/R Credit $80,000.00
WB-ROOM-ROOM_PILOT_DEMO_2026-CYC-01-node_rm_steel_b (ROOM-ROOM_PILOT_DEMO_2026-CYC-01) Structural Steel Supplier (Participant B) NETSUITE 2000 A/P Debit ↔ 1200 A/R Credit $80,000.00

Part IV — U.S. GAAP ASC 405-20-40-1 & FinCEN 31 CFR § 1010.100(ff)(5) Memorandum

1. U.S. GAAP ASC 405-20-40-1 (Extinguishments of Liabilities): Derecognition of each payable occurs via binding multilateral contractual release under ASC 405-20-40-1b and UCC § 9-406 rather than unilateral balance-sheet presentation offsetting under ASC 210-20-45-1.
2. FinCEN Non-Custodial Exemption (31 CFR § 1010.100(ff)(5)): GaussBook never accepts, holds, or transmits currency or funds ($0.00 principal custody). All extinguishments occur strictly via double-entry ERP bookkeeping entries.

Part V — Microsoft Z3 Five-Theorem Proof & Ed25519 Signature

Theorem Formal SMT-LIB2 Invariant Z3 Verdict
Theorem 1: Strict Balance-Sheet Net Equity Invariance (STRICT_NET_EQUITY_INVARIANCE) ∀ u ∈ V, ∀ Δ_c ≥ 0: (AR'_u − AP'_u) = (AR_u − AP_u) ∧ Σ_{u ∈ V} (AR'_u − AP'_u) = 0 Z3 UNSAT (20.82 ms)
Theorem 2: U.S. GAAP ASC 405-20-40-1 Multilateral Novation Validity (ASC_405_20_NOVATION_VALIDITY) ∀ e ∈ Cycles: 0 < Δ(e) ≤ w(e) ∧ Undisputed(e) = True ∧ NovationConsented(e) = True Z3 UNSAT (5.19 ms)
Theorem 3: FinCEN 31 CFR § 1010.100(ff)(5) Zero-Custody Exemption (FINCEN_ZERO_CUSTODY_EXEMPTION) ∀ u ∈ V: AR_Extinguished(u) = AP_Extinguished(u) ∧ PlatformCustodialFloat = $0.00 Z3 UNSAT (1.74 ms)
Theorem 4: Pareto Strict Liability & Financing Cost Reduction (PARETO_STRICT_LIABILITY_REDUCTION) ∀ u ∈ V_cleared: AP'_u < AP_u ∧ ClearingFee(u) < WorkingCapitalInterestSaved(u) Z3 UNSAT (0.76 ms)
Theorem 5: Blinded 2-Edge Boundary SHA-256 Merkle Proof Integrity (MERKLE_BLINDED_LOCAL_VERIFIABILITY) ∀ C ∈ Cycles, ∀ u ∈ C: VerifyMerkleRoot(L_u, π_u, M_root) = True ∧ NonAdjacentLeaked(u) = 0 Z3 UNSAT (3.74 ms)
Certificate ID: CERT-Z3-ASC40520-107F0C83D1DB • Status: VERIFIED_QED • IP: U.S. Patent Pending (USPTO App. No. 64/194,062 · Docket GAUSSBOOK-PROV-001)
Canonical Graph SHA-256: 107f0c83d1db895b65299d88b797cdff2765af54cd2a0e08624650ee4530a685
Ed25519 Public Key: 786396b617d3ba0442ef60c927b090ed2c363f9924ec523651cd0878d23ba985
Ed25519 Signature: 25f68050baab022d9feded9d8d881c003e55f2dc396cfca0f016d164a7dbc46d58885fe63cbc02e63c57ea0e8e3fe6c1aeedf9cb9c4d68cb959f37cc6d276005