SafeGate V9 Evidence

Controlled Pi Testnet Payment Spine — PASSED

This page records SafeGate’s controlled Pi Testnet payment-spine evidence: Pi Browser authentication, Pi Testnet wallet payment, backend approval / completion direction, backend-verified payment state, guarded receipt/evidence generation, public-safe verification, and access unlock after backend-verified receipt.

SafeGate does not process payments. SafeGate verifies what happened after payment.

Payment is the trigger. Trust is the product.

Open V9.1 Backend Validation Open Pilot Review Index Open Main Review Hub Open Public Pass Note

Current Evidence Status

Area	Status
Controlled Pi Testnet Payment Spine	PASSED
V9.1 Safe Negative Backend Validation	PASSED · 18 / 18
V9.1 Public Review Sync	COMPLETE
Pilot Readiness	OPEN
Production Readiness	NOT CLAIMED
Pi Mainnet Settlement	NOT CLAIMED
Official Pi Partnership	NOT CLAIMED
Formal Third-Party Audit	NOT CLAIMED

Payment Spine

PASSED

The controlled flow showed payment-triggered transition toward backend-verified trust state.

Access Guard

PASSED

Access unlocked only after backend-verified receipt, not from frontend callback alone.

Public Verify

MINIMUM DISCLOSURE

Public verification confirmed outcome without exposing raw paymentId, txid, secrets, or customer data.

Controlled Flow Demonstrated

Step	Observed Result
V9 invoice creation	Created in controlled flow.
Initial access state	Access initially locked.
Pi Browser authentication	Authentication succeeded.
Username + payments scope	Scope flow succeeded.
Pi wallet payment	Succeeded in Sandbox / Testnet context.
Backend approval / completion	Backend approval / completion direction executed.
Backend-verified payment state	Reached controlled verified state.
Receipt/evidence generation	Generated after verified state.
Public verification	Minimum-disclosure public verify confirmed outcome.
Access unlock	Unlocked after backend-verified receipt.

Observed Public-Safe Result

{
  "paymentState": "PAYMENT_VERIFIED_TESTNET",
  "accessState": "ACCESS_UNLOCKED_BY_BACKEND_VERIFIED_RECEIPT",
  "verified": true,
  "minimumDisclosure": true,
  "publicSafe": true,
  "privateDataIncluded": false,
  "secretsIncluded": false,
  "rawPiApiResponseIncluded": false,
  "serviceRoleKeyIncluded": false,
  "paymentIdIncluded": false,
  "txidIncluded": false,
  "customerDataIncluded": false,
  "accessUnlocked": true
}

Why This Matters

This evidence closes the core V9 payment-spine gap.

SafeGate is no longer only a static concept or documentation-only prototype. It has controlled evidence for the key post-payment trust path: payment event → backend-verified payment state → receipt/evidence → public verify → access unlock.

V9.1 Validation Added After This Evidence

After the controlled payment-spine pass, SafeGate completed a V9.1 safe negative backend behavior validation.

Validation Area	Result
Total visible checks	18
Passed checks	18
Failed checks	0
Warning checks	0
Invoice creation	Kept access locked and did not create receipt/evidence.
Receipt/evidence before verified payment	Rejected safely.
Missing invoiceId / paymentId	Rejected safely.
Unknown public verify pair	Did not return active verified trust.
Selected leak scans	No obvious secret/internal leak terms detected.

Open V9.1 Backend Validation Open V9.1 Pass Note

Core Rule Proven By Direction

No receipt, no evidence, and no access unlock before backend-verified payment state.

Frontend callback alone must never unlock access. Unknown, missing, ambiguous, duplicate, replayed, mismatched, expired, failed, stale, or unavailable states should fail secure.

Public-Safe Evidence Boundary

Raw payment screenshots, wallet data, transaction data, app identifiers, internal logs, payment identifiers, access tokens, and backend secrets should not be published unredacted.

Allowed Public-Safe Field	Public Evidence Status
paymentState label	Allowed
accessState label	Allowed
verified status	Allowed
minimumDisclosure status	Allowed
publicSafe status	Allowed
privateDataIncluded: false	Allowed
secretsIncluded: false	Allowed
paymentIdIncluded: false	Allowed
txidIncluded: false	Allowed
customerDataIncluded: false	Allowed

What This Does Not Claim

Production readiness is not claimed.
Pi Mainnet settlement is not claimed.
Official Pi partnership is not claimed.
Formal third-party audit is not claimed.
Security certification is not claimed.
Completed commercial pilot is not claimed.
Tamper-proof infrastructure is not claimed.
Independent cryptographic verification is not yet claimed.
All duplicate / replay / failure risks solved is not claimed.

Item	Link
Main Review Hub	https://www.safegatelabs.xyz
Pilot Review Index	/pilot-review-index.html
V9.1 Backend Behavior Validation	/v9-1-backend-behavior-validation.html
Controlled Payment-Spine Pass Note	SAFEGATE_CONTROLLED_PI_TESTNET_PAYMENT_SPINE_PASSED.md
V9.1 Validation Pass Note	SAFEGATE_V9_1_SAFE_NEGATIVE_BACKEND_VALIDATION_PASSED.md
Public Review Sync Complete	SAFEGATE_V9_1_PUBLIC_REVIEW_SYNC_COMPLETE.md
Security Boundaries	SECURITY_BOUNDARIES.md
Architecture	ARCHITECTURE.md

Main Review Question

Where would this architecture break first if it moved from controlled Testnet evidence to a real pilot environment?

Review should focus on duplicate callbacks, idempotency, replay resistance, paymentId / txid mismatch, Pi API timeout, durable-state failure, public verify freshness, receipt/evidence integrity, safe error handling, and rate limiting.

Final Evidence Position

SafeGate has passed a controlled Pi Testnet payment-spine flow and a live V9.1 safe negative backend validation for selected public-safe cases.

SafeGate is ready for serious technical review and controlled pilot planning.

SafeGate is not production-ready and not formally audited.