# Vaultfire V3 x402 fresh closure re-audit remediation

Date: 2026-08-25  
Scope: additive `pr7/**` and `repos/theloopbreaker-site/app/api/v3/**` only.  
Activation posture: **fail-closed**. This is source and local test evidence, not deployment, settlement, or Bazaar-listing evidence.

## Finding-by-finding closure

### H-01 — capability evidence and configured payment requirements were not coherently bound

**Closed at source level.**

- Replaced the independent artifact set with one canonical, duplicate-key-safe authorization bundle.
- The verifier returns an immutable typed authorization rather than a boolean.
- The signed/digested bundle binds schema and environment; exact registry route ID and template; concrete canonical resource; uppercase allowlisted method; EIP-155 network and chain; deployment address and code digest; asset, payee, atomic amount and exact scheme; finality and confirmation policy; validity window; payment-requirement digest; listing and deployment evidence IDs; and the six evidence digests.
- Store construction rejects requirements not equal to a canonical `V3_API_ROUTES` identity. Claim, transition, and reconciliation require the same exact bundle expectation, preventing cross-route, resource, network, address, asset, payee, code, or price mixing.
- Authorization validity is enforced at claim time. Expiry recovery remains possible after expiry without permitting a new claim.
- Production still has no permissive or in-memory capability fallback.

Regression: `x402-v3-adversarial-regression.spec.ts` mutates each material authorization dimension, recomputes the inner digests, and verifies rejection. The original independent harness now terminates fail-closed during store construction.

### M-01 — incomplete schema semantics and relationships

**Closed at source level, with standards-library CI validation still recommended.**

- Local `uniqueItems` now uses canonical structural JSON equality independent of object key order.
- `date-time` now requires strict RFC 3339 syntax and valid calendar/time ranges rather than accepting `Date.parse` extensions.
- Discovery has explicit unique route-ID and unique method/path checks.
- Receipt schema uses canonical route/resource/network/address/request-ID formats and includes route ID and chain ID.
- Runtime receipt relationship validation requires the exact registry ID/method/template, template-to-concrete-resource match, payment network/chain equality, and transaction-evidence equality to the payment binding.
- Canonical path validation rejects query, fragment, control characters, encoded separators/dot forms, normalization changes, doubled slashes, trailing slashes, and unsupported route parameters.

Regression covers reordered-object duplicates, date-only timestamps, duplicate route identities, malformed request locators, and cross-chain public receipt evidence.

### L-01 — unstable route IDs across representations

**Closed.**

The site inventory is the canonical vocabulary. The source registry, generated registry, OpenAPI operation IDs, discovery output, and exact handler lookup now use the same 20 IDs. Alias and prefix-stripping lookup behavior was removed. Tests compare IDs as well as method/path and security semantics.

### L-02 — claimed 128-bit request-locator entropy was not enforced

**Closed at source level.**

The accepted locator is exactly `v3r_` plus 32 lowercase hexadecimal characters. Generation uses `randomBytes(16)`. Validation rejects malformed, low-diversity, and repeated short-period values. Documentation now identifies server generation and forbids arbitrary caller locator formats. Edge enumeration rate limiting remains a deployment control.

## Validation

- Full PR7 suite: **PASS**, 20 files / 126 tests.
- PR7 typecheck: **PASS**.
- Narrow site V3 API TypeScript check using the existing PR7 compiler: **PASS**.
- Dedicated no-payment/V2-isolation suite: **PASS**, 4 files / 18 tests.
- Registry determinism: **PASS**, 9 files byte-identical.
- Compatibility generators: **PASS**.
- V2 Bazaar metadata: **PASS**, 76 V2 candidates, 29 with Solana options.
- V3 Bazaar publication gate: **0 candidates**, `publicationEligible=false`, empty listing/deployment evidence IDs.
- Bazaar live-readiness check: **expected fail-closed**, owner evidence absent.
- Protected V2 working-tree diff for site V2/x402 and `pr7/baseline`: **empty**.
- Repository `git diff --check`: **PASS**.

Evidence logs are stored at:

- `/home/user/workspace/vaultfire_v3_x402_closure_pr7_tests_20260825.log`
- `/home/user/workspace/vaultfire_v3_x402_closure_typecheck_20260825.log`
- `/home/user/workspace/vaultfire_v3_x402_closure_site_typecheck_narrow_20260825.log`
- `/home/user/workspace/vaultfire_v3_x402_closure_no_payment_20260825.log`
- `/home/user/workspace/vaultfire_v3_x402_closure_generators_20260825.log`
- `/home/user/workspace/vaultfire_v3_x402_closure_bazaar_readiness_20260825.log`
- `/home/user/workspace/vaultfire_v3_x402_fresh_reaudit_harness_postfix_20260825.log`

## Remaining external blockers

The source findings above do not activate payment or publication. Activation still requires independently authenticated evidence for:

1. Exact production deployments, addresses, bytecode/code identity, chain, asset, and payee configuration.
2. A production canonical-chain/finality observer with reorg evidence.
3. Durable production storage credentials/runtime plus atomicity, backup, retention, monitoring, and failure-drill evidence.
4. Successful route-bound authorization, payment, settlement, and fulfillment on the exact release artifact.
5. Objective V3 Bazaar listing receipt IDs, indexing observation, and canonical publication response.
6. Signed clean-CI publication-gate evidence.
7. An authenticated external audit-chain anchor that can detect complete history replacement by a storage administrator.

Until those exist, production capability evaluation remains unavailable, V3 routes remain read-only/fail-closed, no V3 HTTP 402 is emitted, and no live settlement or Bazaar listing is claimed.
