docs(reconciliation): complete T11 cross-source conflict resolution and validation sign-off

2026-11-10 15:23:25 +05:30
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+# T11 – Commercial Sales Reconciliation & Validation Sign-off
+
+**Generated:** 2026-11-10 15:20:59  
+**Target Database:** `data/hiffi_catalog.db`  
+**Catalog Scope:** 17,135 Master Artists  
+**Status:** **PASSED & RECONCILED**
+
+---
+
+## 1. Cross-Source Conflict Resolution Hierarchy
+When discography or pure sales units conflict across multiple external archives, records are reconciled according to this strict verification order:
+
+| Priority | Provenance Flag | Ingestion Engine | Scope & Application |
+|---|---|---|---|
+| **P1 (Highest)** | `VERIFIED_CSPC` | ChartMasters CSPC Master Database | Comprehensive discography audits for major commercial catalog leaders. |
+| **P2** | `WIKI_DISCOGRAPHY_AUDIT` | Wikipedia Discography Scraper | Cross-certified album/single sales tables with multi-source references. |
+| **P3** | `VERIFIED_RIAA` | RIAA Certification Database | Direct commercial gold/platinum certification audit totals. |
+| **P4 (Fallback)** | `MUSICBRAINZ_DISCOGRAPHY_AUDIT` | MusicBrainz REST API & Release Log Audit | Long-tail empirical physical and digital release unit synthesis. |
+
+*Conflict Rule:* Higher-priority flags override lower-priority entries during sync runs. Lower-tier data never overwrites audited CSPC or RIAA records.
+
+---
+
+## 2. Invariant Validation & Integrity Matrix
+
+| Validation Check | Expected Rule | Actual Value | Compliance Status |
+|---|---|---|---|
+| **Total Coverage** | 17,135 artists | 17,135 rows | **PASSED (100%)** |
+| **Rank Continuity** | Dense sequence (1 to 17,135) | Min: 1, Max: 17135, Distinct: 17,135 | **PASSED (No Gaps)** |
+| **Empirical Pure Sales** | Zero streaming inflation (`streaming_eas == 0.0`) | 0 records | **PASSED (Strict 0.0)** |
+| **Math Additivity** | `albums + physical + digital == total` | 0 mismatches | **PASSED** |
+| **Invalid/Zero Values** | `audited_sales_units > 0` | 0 records | **PASSED** |
+| **CSV Parity** | Match between DB & backup CSV | 100% Match (17,135 rows across CSV and DB) | **PASSED** |
+
+---
+
+## 3. Provenance Distribution & Volume
+
+Total catalog pure sales volume: **9,579,506,405.00 units**
+
+| Provenance Flag | Artist Count | Share (%) | Total Pure Sales Units | Rank Window |
+|---|---|---|---|---|
+| `VERIFIED_CSPC` | 34 | 0.2% | 2,238,610,000.00 | #1 – #190 |
+| `WIKI_DISCOGRAPHY_AUDIT` | 397 | 2.3% | 4,056,775,655.00 | #5 – #927 |
+| `VERIFIED_RIAA` | 496 | 2.9% | 3,140,500,000.00 | #16 – #914 |
+| `MUSICBRAINZ_DISCOGRAPHY_AUDIT` | 16,208 | 94.6% | 143,620,750.00 | #928 – #17,135 |
+
+---
+
+## 4. Milestone Spot-Check Verification
+
+| Sales Rank | Artist ID | Artist Name | Audited Pure Sales | Provenance Flag |
+|---|---|---|---|---|
+| #1 | `5102` | **Eminem** | 237,138,000.00 | `VERIFIED_CSPC` |
+| #2 | `4651` | **Drake** | 207,076,000.00 | `VERIFIED_CSPC` |
+| #3 | `10040` | **Mariah Carey** | 201,259,000.00 | `VERIFIED_CSPC` |
+| #500 | `7492` | **Jim Jones** | 3,000,000.00 | `VERIFIED_RIAA` |
+| #1,000 | `10816` | **Mouse Powell** | 45,250.00 | `MUSICBRAINZ_DISCOGRAPHY_AUDIT` |
+| #5,000 | `11320` | **Ninjasonik** | 4,250.00 | `MUSICBRAINZ_DISCOGRAPHY_AUDIT` |
+| #10,000 | `5769` | **Furious Frank** | 500.00 | `MUSICBRAINZ_DISCOGRAPHY_AUDIT` |
+| #17,135 | `10982` | **Mvtha Cvla** | 250.00 | `MUSICBRAINZ_DISCOGRAPHY_AUDIT` |
+
+---
+
+## 5. Architectural Deliverables & Readiness
+- Production table `commercial_sales` is verified with zero foreign key or integrity errors.
+- Active REST endpoints (`/sales/summary`, `/sales/artists`, `/sales/artists/{id}`) are verified on `178.104.200.35:8000`.
+- T11 Sales Reconciliation is complete and signed off for Go platform integration.