ProofLink — Payroll ↔ Recordkeeper Reconciliation Reference Implementation

Reference implementation / IP asset for sale or license. ProofLink is a pre-revenue, IP-only reference implementation for automated reconciliation and rule-based compliance analysis in 401(k) retirement plans. The codebase compares payroll contribution data against recordkeeper transaction data to detect discrepancies, timing violations, and regulatory compliance issues. This is a complete, functional codebase ready for integration into a buyer's platform.

What It Includes

• Preflight validation gate: Enforces explicit mapping contract and required field validation before reconciliation runs
• Canonical mapping system: Vendor-agnostic column mapping with exact-match normalization (no fuzzy logic)
• Core reconciliation engine: Automated comparison of payroll vs recordkeeper contributions
• Compliance analyzers: Secure 2.0 catch-up rules, IRS 402(g) limits, eligibility drift detection, timing violation checks
• Deterministic outputs: Structured reconciliation results and exception summaries suitable for downstream audit or review workflows
• Test suite: Smoke tests with sample data demonstrating preflight gate functionality
• Documentation: Complete schema documentation, mapping examples, and buyer handoff guides

What It Does Not Include

• Hosted service or SaaS platform
• Data adapters for specific payroll or recordkeeper systems (buyer must build these)
• Fuzzy ingestion or probabilistic matching (strict exact-match + normalization only)
• Production deployment infrastructure
• Ongoing support or maintenance (asset sale only)
• Commercial usage history (pre-revenue prototype)