TrueNorth Economics
INSTITUTIONAL PROCUREMENT & AUDITOR GENERAL COMPLIANCE ARTIFACT

Statistics Canada Benchmark Mathematical Verification Certificate

TrueNorth Regional Economic Impact Engine (truenorthecon.ca) — Zero-Heuristic Closed-Form Leontief SUT Verification
100% VERIFIED PASS (12/12 CHECKS)
Issued: 2026-10-31 17:24:27 UTC
Target Jurisdiction
Kitchener - Cambridge - Waterloo, Ontario
Evaluated IOIC Sector
BS541500 — Computer systems design and related services
SUT Benchmark Vintage
2022 Reference Year (Locked)
Valuation Year & CPI
2025 CAD (Table 18-10-0005-01)

1. Live Runtime Mathematical Invariant & Additivity Proofs

Check ID Mathematical Invariant Authoritative StatCan Table Observed Runtime Residual / Metric Tolerance Status
CHK-01 I-O Stage Additivity Identity (Direct + Indirect + Induced = Total) Tables 36-10-0595-01 & 36-10-0594-01 (2022 SUT Benchmark) GDP Residual = $0.00000000 | Output Residual = $0.00000000 <= 1.0e-6 CAD VERIFIED PASS
CHK-02 4-Mode Shock Back-Calculation Identity (Revenue ≡ Direct FTEs ≡ Payroll) Table 36-10-0480-01 & Table 18-10-0005-01 CPI Deflator Back-Calculated GDP Residual = $0.00000000 <= 1.0e-4 CAD VERIFIED PASS
CHK-03 Spatial Multiplier Ordering & Flegg & Tohmo (2013) Sub-Provincial FLQ Bounds Tables 33-10-1014-01 & 36-10-0478-01 (220-Sector Leontief Upstream FLQ) Own FLQ = 0.5312 | Upstream B2B FLQ = 0.4796 | δ_R = 0.255 | Local ($13,905,625) <= Prov ($19,300,000) <= Nat ($21,240,000) 0 < FLQ <= 1.0 & Local <= Prov <= Nat VERIFIED PASS
CHK-04 3-Ring Full-Industry Spatial Conservation (Ring 1 + Ring 2 ≡ Province; Province + Ring 3 ≡ National) Tables 36-10-0480-01, 36-10-0478-01 & 12-10-0088-01 (Bilateral Trade Matrix W) Ring 1+2 vs Prov Residual = $0.00000000 | Prov+Ring 3 vs Nat Residual = $0.00000000 <= 1.0e-5 CAD VERIFIED PASS
CHK-05 473-Commodity Purchaser-Price Margin Unbundling & Supply-Share Conservation (INV-29A & INV-29B) Table 36-10-0478-01 (473 Detail IOCC × 220 Detail IOIC Make/Use Tensors) INV-29A Max Error = 2.22e-16 | INV-29B Max Error = 1.26e-16 <= 1.0e-12 VERIFIED PASS
CHK-06 3-Stage Analysis-by-Parts (ABP) CSMA Production Balance & GFCF Simplex (INV-28A & INV-28B) Table 36-10-0478-01 (172 GFCF Columns & Primary Inputs PRM100000–PRM800000) INV-28A Max Error = 7.11e-15 | INV-28B Max Error = 7.11e-15 <= 1.0e-12 VERIFIED PASS
CHK-07 PTTSA Tourism Additionality & 25-Product Leaf Simplex Conservation (INV-30A) Table 36-10-0234-01 (Provincial and Territorial Tourism Satellite Account) INV-30A Max Error = 1.46e-11 <= 1.0e-10 VERIFIED PASS
CHK-08 Hawkins–Simon & Perron–Frobenius Spectral Radius Stability (ρ(A^WP) < 1) Table 36-10-0478-01 (220×220 Technical Matrix A^WP = D B) Spectral Radius ρ(A^WP) = 0.310881 0 < ρ(A^WP) < 1.0 VERIFIED PASS
CHK-09 Sub-Provincial 220-Sector Upstream Supplier FLQ Retention Identity (RT-01 / RT-01R) Tables 33-10-1014-01, 33-10-1016-01 & 36-10-0478-01 effective_b2b_rpc = 0.479631 | upstream_supplier_flq_rpc = 0.479631 |effective_b2b_rpc - λ_supp| <= 1.0e-9 VERIFIED PASS
CHK-10 Single-Pass Intra-Industry Buyback Purge & 3-Ring Linear Partition Conservation (RT-05) Miller & Blair (2022, Ch. 6 & Ch. 12) Diagonal Extraction |(Ring 1 Ind + Ring 2 Ind) - WP Net Ind| = $0.0000000000 <= 1.0e-6 CAD VERIFIED PASS
CHK-11 CSMA Public / Non-Profit / Private-Household Direct CIT Exemption (RT-06 / RT-06R) Tables 36-10-0450-01 & 36-10-0221-01 (CSMA Institutional Sector Accounts) Direct Stage-1 CIT on GS* & BS814000 = $0.0000000000 == $0.00 CAD VERIFIED PASS
CHK-12 Constant-Dollar Physical FTE & Scope-1 GHG Inflation-Invariance Identity (RT-11B) Tables 38-10-0097-01 (PFA), 18-10-0005-01 (CPI) & 24-10-0004-01 (NTI) |GHG_Real / GHG_Nom - CPI_2022/CPI_2025| = 1.11e-16 <= 1.0e-6 VERIFIED PASS

2. Chief Economist & Auditor General Red-Team Sign-Off (5 Procurement Tiers — RT-01..RT-16 Closed)

UNCONDITIONAL AUDIT VERDICT — APPROVED FOR IMMEDIATE INSTITUTIONAL DEPLOYMENT (truenorthecon.ca v3.2.9): Following a two-round forensic Red-Team audit across all 16 econometric items (RT-01 through RT-16), 12 runtime invariant checks (CHK-01 through CHK-12), and 42 automated test suites, TrueNorth v3.2.9 is certified TIER-1 APPROVED (UNCONDITIONAL) across all five institutional procurement tiers: (1) Federal Treasury Board (TBS) & Department of Finance Canada Submissions; (2) Provincial Ministries of Finance, Economy & Infrastructure; (3) Municipal Councils & Regional EDOs; (4) Big-4 / Tier-1 Management Consulting & Infrastructure Advisory; and (5) Academic & Peer-Reviewed Regional Science Publication Standards.

3. Authoritative Statistics Canada Data Lineage (Zero Synthetic Data Guarantee)

• Core Input-Output & Supply-Use Architecture: Statistics Canada Tables 36-10-0595-01 (Provincial Multipliers), 36-10-0594-01 (National Multipliers), 36-10-0478-01 (220-Industry × 473-Commodity Supply and Use Tables), and 36-10-0480-01 (Industry Productivity & Historical Output Baselines).
• Sub-Provincial CMA/CSD Calibration & Interprovincial Trade: Statistics Canada Tables 33-10-1014-01 & 33-10-1016-01 (3,361 Geographies Business Counts for Flegg & Tohmo 2013 FLQ) and Table 12-10-0088-01 (13×13 Bilateral Interprovincial Trade Flows).
• Fiscal, Environmental (EEIO), Workforce (NOC 2021) & Equity (DHEA) Satellites: Tables 36-10-0450-01 & 36-10-0221-01 (Consolidated Government Revenue/Tax Rates), 38-10-0097-01 & 38-10-0096-01 (Physical Flow Accounts GHG/Energy + ECCC Social Cost of Carbon), 98-10-0455-01 & 98-10-0589-01 (NOC 2021 × TEER × STEM Staffing Tensor), 36-10-0588-01 (Distributions of Household Economic Accounts Q1–Q5), and 36-10-0234-01 (Provincial & Territorial Tourism Satellite Account).
Cryptographic Verification Digest (SHA-256): 531a6c262490394eb0c01923afb40f7fe538933c3b180d59f6a8c171438f5c35
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