SafeGate / V13 Controlled Hardening Scope

V13 Controlled Hardening Scope

SafeGate V13 is opened as a controlled backend hardening scope for post-payment trust architecture. V13 public surface validation and backend policy simulation have passed, but real backend hardening evidence has not passed yet.

SafeGate does not process payments. SafeGate does not custody funds. SafeGate does not act as escrow.

Payment is the trigger. Trust is the product.

Public Surface Validation Passed Backend Policy Simulation Passed V13 Scope Open Fee Architecture Documented Real Backend Hardening Not Passed Yet Not Production Ready Not Formally Audited
Main Review Hub Public Surface Validation Backend Policy Simulation Fee Architecture V9.1 Backend Validation Public V13 Scope Doc

Current V13 Object

{ "phase": "V13_CONTROLLED_HARDENING_OPEN", "publicSurfaceValidation": { "status": "PUBLIC_SURFACE_VALIDATION_PASSED", "totalChecks": 12, "passedChecks": 12, "failedChecks": 0 }, "backendPolicySimulation": { "status": "V13_BACKEND_POLICY_SIMULATION_PASSED", "totalChecks": 12, "passedChecks": 12, "failedChecks": 0, "serverlessApiUsed": false }, "realBackendHardeningEvidence": "NOT_PASSED_YET", "realPiPaymentEndpointValidation": "NOT_TESTED_HERE", "realDatabaseDurabilityValidation": "NOT_TESTED_HERE", "productionReadyClaim": false, "formalAuditClaim": false, "overallV13PassedClaim": false }

What Passed in V13 So Far

Area Status Meaning
Public Surface Validation PASSED 12/12 Live public pages and claim-boundary language are available and consistent.
Backend Policy Simulation PASSED 12/12 Expected V13 fail-secure behavior is simulated client-side without adding a new serverless function.

What Has Not Passed Yet

Area Status Reason
Real Backend Hardening Evidence NOT PASSED YET Requires backend-level evidence against live endpoints or a dedicated backend environment.
Real Pi Payment Endpoint Validation NOT TESTED HERE Simulation does not call real Pi approval/completion endpoints.
Real Database Durability Validation NOT TESTED HERE Simulation does not test real database write/readback behavior.
Production Readiness NOT CLAIMED Controlled pilot planning is not production readiness.
Formal Audit NOT CLAIMED No third-party audit or certification is claimed.

V13 Hardening Focus

  • Duplicate callback behavior
  • Idempotency
  • Replay resistance
  • Payment / invoice mismatch handling
  • Timeout and ambiguous verification handling
  • Durable state failure handling
  • Public verify unknown or mismatched pair safety
  • Safe error output
  • Access unlock regression checks
  • Fee settlement confirmation

Fee-Linked Hardening Rule

  • Payment verification alone is not enough where a SafeGate fee is required.
  • Fee-required flows must not finalize before fee confirmation.
  • No verified receipt, evidence, access unlock, or public verify should finalize where required fee state is missing.
  • SafeGate does not use postpaid merchant debt as the primary fee model.

Deployment Boundary

The live deployment is using a Vercel Hobby environment with a serverless function limit already reached. V13 backend policy simulation is therefore delivered as a static HTML client-side simulation.

No new serverless API function is added for this simulation. This avoids breaking production deployment.

V13 Pass Gate

Gate Required Before Claiming V13 Passed
Duplicate callback evidence Backend must show duplicate callbacks are idempotent and do not double-finalize.
Replay evidence Backend must block reuse of payment/tx identity across invoices.
Mismatch evidence Backend must block payment/invoice mismatch.
Timeout evidence Backend must fail secure when verification is ambiguous or timed out.
Durable failure evidence Backend must keep access locked if durable receipt/evidence write fails.
Public verify safety evidence Unknown or mismatched verify pairs must not return active verified trust.
Fee confirmation evidence Fee-required flows must not finalize without verified fee state.

What SafeGate Is Not Claiming

  • No production readiness claim.
  • No formal audit claim.
  • No official Pi partnership claim.
  • No Pi Mainnet settlement claim.
  • No custodial payment processing claim.
  • No escrow claim.
  • No passphrase or private key collection.
  • No native Pi split claim where unsupported.
  • No completed V13 claim.
  • No overall V13 passed claim.

Main V13 Question

Can SafeGate preserve safe post-payment trust behavior when duplicate callbacks, replay attempts, mismatches, timeouts, durable state failures, fee-settlement requirements, and public verification pressure appear?

Public surface and policy simulation passed. Real backend hardening evidence is the remaining frontier.