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VERSION 2026.07.19-v2.3 · 41/41 SELF-CHECKS · 11/11 CASES · N8N 2.31 BETA-LINE IMPORT-TESTED

Trust the receipt.
Re-run the proof.

A privacy-safe n8n contract pack with persistent replay state, reviewer evidence that survives into the final receipt, native evaluation fixtures, and a zero-dependency verifier—without credentials or production data.

  • 3 connected n8n workflows
  • 11/11 workflow + topology cases
  • 41/41 packet self-checks
  • 0 credentials or customer claims

THE REFERENCE FLOW

One process. Three state-aware boundaries.

01 · CONTRACT + LEDGER

Persist replay state

Allowlists anonymous input, strips public approval claims, and records a Data Table replay marker before review can continue.

02 · TRUSTED REVIEW

Preserve who approved

Public input cannot approve itself. Valid post-intake evidence retains reviewer alias, channel, and response timestamp; incomplete evidence fails closed.

03 · RECOVERY RECEIPT

Explain and verify

Returns contract version, replay state, decision, reviewer evidence, and recovery action. The included verifier recomputes the expected contract.

INSIDE THE ZIP

Files, tests, and recovery notes.

  • Three workflow JSON files accepted by the n8n 2.31.0 beta-line CLI importer
  • Seven workflow cases plus four deployment-topology cases
  • Atomic PostgreSQL replay-ownership reference
  • Two n8n light-evaluation CSV fixtures
  • Zero-dependency verifier and public SHA-256 receipt
  • Import, topology, failure-injection, and recovery runbook

KNOWN BOUNDARY, WRITTEN DOWN

Self-verified does not mean production-proven.

The verifier passes 41 structural checks and eleven workflow/topology cases, and all three JSON files were accepted by the n8n 2.31.0 beta-line CLI importer. npm's current stable line was 2.30.7 when this page was updated; a separate stable-line import run did not produce valid completion evidence, so stable acceptance is not claimed. The PostgreSQL statement proves an inspectable atomic-ownership pattern, not execution in a buyer database. End-to-end behavior still depends on the buyer's state store, approval channel, and topology.

Want the reusable adaptation kit?

The Pro download adds a scope workbook, topology questionnaire, acceptance matrix, replay receipt, and handoff checklist. Buyer #1 pays $19; each verified completed sale raises the next price by $10. Custom implementation remains a separate $799 sprint.