# Vaultfire V3 — Final Cross-Chain Release / Security Handoff

**Prepared:** 2026-08-22
**Classification:** conservative evidence handoff; **not a readiness determination or release approval**.
**Companion machine-readable handoff:** [`VAULTFIRE_V3_FINAL_CROSS_CHAIN_READINESS_20260822.json`](VAULTFIRE_V3_FINAL_CROSS_CHAIN_READINESS_20260822.json).

## Scope and non-claims

This consolidation uses only evidence committed at the evidence-inclusive release head below. It did not run builds or network actions and did not deploy, sign, broadcast, spend, push, merge, or alter production.

This is an internal AI-assisted evidence consolidation. Any internal AI-assisted audit or review evidence cited here is **not an independent human audit**. It makes no readiness, deployment, settlement, Bazaar-listing, Solana-native-pass, perfect, complete, or bug-free claim.

## Immutable anchors

| Anchor | Commit | Tree |
| --- | --- | --- |
| canonical main | `eb7c7836e432f591745f807bd5199f5fa344b36f` | `adfbad0aafcfd447b347ee34c835bded79214c47` |
| frozen source RC validated by final RC2 | `0b4038f757e6a27bb92cef187a6eaf594961e6ac` | `e267e420613f25fbfeb62ae231f99caa738e2979` |
| current evidence-inclusive release head before this consolidation commit | `d696395a00ee4cdb63f79024545601c54ec0d6fb` | `67f6b644663c682fced080fd26726238cafccccd` |

Branch: `release/base-v3-mainnet-bootstrap-20260822`. The release head above is the pre-consolidation evidence target; this handoff will be committed in a new documentation-only commit.

## Disposition

The final RC2 manifest sets `publicRoleAddressGate` to `false`: The strict canonical release entrypoint is blocked by V2-ABI-001; additional x402/Bazaar, bootstrap, and Solana readiness states remain fail-closed or non-executable.

The record remains fail-closed. The items below are evidence and blockers, not authorization to deploy, activate, settle, list, or represent any rail as live.

## Final RC2 evidence

The final RC2 manifest validates source `0b4038f757e6a27bb92cef187a6eaf594961e6ac` at tree `e267e420613f25fbfeb62ae231f99caa738e2979` and is SHA-256 `c78226a73aa2013cb49bbfa20d8f803416fd4f2a6cfbd4463298e68880496bb5`. Its stated scope is: Fresh RC2 evidence only. No prior baseline or RC result is asserted to apply to this source tree.

| Evidence result | Recorded value |
| --- | --- |
| Deployable-size review | 43 artifacts; EIP-170 `24576` bytes; EIP-3860 `49152` bytes; `passed: true` |
| Non-fork Foundry paths | 39/39 paths; 38 suites; 136 passed, 0 failed, 0 skipped |
| Base fork | `0`; local Anvil fork; public endpoint read-only; no signing/broadcast |
| Focused stale-terms regression rerun | `0` |
| Strict V2 ABI gate | `1` (expected blocker) |
| Bazaar readiness | `1` (expected owner-evidence denial) |
| Solana source-readiness test / native toolchain probe | `0` / `127` |

### Exact command evidence

The final manifest references `48` verbatim `commands.jsonl` records: exit `0`: 42, exit `1`: 3, exit `2`: 2, exit `127`: 1. The companion JSON field `final_rc2.commands_jsonl_records_verbatim` preserves every exact command string and exit status from `release-evidence/final-rc2-validation-20260822/commands.jsonl`; no command text has been normalized or rerun here.

## Base

The final RC2 public read-only Base pin is chain `8453`, block `50313644`, hash `0x796fa9685bc16b3847b3a2b12bcf97bf5763c144044af7a7532aab31c219f90c`, endpoint `https://mainnet.base.org`; the pin records `signing: false` and `broadcast: false`.

No V3 Base contract address or V3 deployment transaction hash is recorded: every V3 deployment-address field in `pr8/pilot/base_v3_deployment_manifest.json` is `null`. The existing V2 integration references are not V3 deployment proof.

The blank read-only bootstrap profile has `pilotReady: false`, `signed: false`, and `broadcast: false`. The final RC2 blank-profile attempt exited `2` and records no package file: **unsigned bootstrap package status: none, correctly blocked**.

The release sequence records a stale-accountability-terms correction in `97be412` (`fix(bonds): reject stale accountability terms`); the final RC2 focused regression rerun exited 0. This is regression evidence, not deployment evidence.

## Solana

The frozen Solana evidence is source-only. It records `v3Program.status = not_deployed` and `x402UsdcSettlement.status = configured_unverified`; no deployment or settlement evidence is recorded.

Recorded remediation: direct user-controlled PDA seed fields were constrained from an advertised 64-byte maximum to 32 bytes for four handlers (SV3-FINAL-01); historical functional claims were marked superseded (SV3-FINAL-02); and Solana x402 metadata was classified configured-unverified (SV3-FINAL-03). The recorded source-readiness test passed 15/15, but the native Solana/Anchor/Cargo probe exited 127; this is not a native build, validator, or mainnet pass.

## x402 / Bazaar

The exhaustive 147-row evidence matrix is [`endpoint-flow-matrix.csv`](../audit-evidence/final-x402-bazaar-20260822/endpoint-flow-matrix.csv): 143 V2 and 4 V3 entries; 77 metadata candidates; 75 V2 and 2 V3 priced entries. Its methodology expressly covers checked-in registry data only and does not validate a public listing, Solana settlement, or live payment rail.

F-01 corrected prepared/in-process V3 receipt/payment identity substitution by binding receipt fields to the challenged payment and rejecting reuse across a different request. The checked-in V2 `/api/x402/*` surface remains fail-closed; prepared V3 has no checked-in `app/api/v3` runtime route. Final RC2 Bazaar readiness exited 1 because owner-provided live evidence is absent. No live Bazaar listing, payment, or settlement is claimed.

## V2 / V3 compatibility inventory

| Control | Evidence |
| --- | --- |
| Version policy | V2 default; V3 explicit opt-in allowlist only; V2-to-V3 write redirect forbidden; V3 fail-closed by default |
| V2 deployed contracts / API inventory | 134 instances / 132 paths |
| Generated registry | 147 entries: 143 V2, 4 V3 |
| V2 response fixtures | 1 exact fixture; 131 unresolved |
| V2 ABI / runtime controls | 35 frozen provenance-backed ABIs verified; `VaultfireTrustAttestation` remains blocked; 134 frozen V2 runtime bytecode hashes verified |

Evidence: [`V2_V3_COMPATIBILITY_MATRIX.md`](../pr7/compat/V2_V3_COMPATIBILITY_MATRIX.md), [`final_compatibility.txt`](final_compatibility.txt), and [`strict_v2_abi_blocker.txt`](strict_v2_abi_blocker.txt).

## Partner proposal package

The prepared Base V3 partner package is documentation-only. It contains eight separate proposal templates, but no proposal is submittable; no target, calldata, address, route, cap, approval evidence, or deployment assertion is supplied. Its template keeps `pilotReady: false` and `v2Default: true`.

## Reproducibility evidence

The final RC2 manifest SHA-256 is `c78226a73aa2013cb49bbfa20d8f803416fd4f2a6cfbd4463298e68880496bb5`. The exact captured-log archive is `validation-logs-exact.tar.gz` with SHA-256 `b876c467f90172c5706bf9f54a4f49a50b7b2c7adab88e53f9f192c02145dc23` (35621 bytes). The reproducibility command `v3-two-clean-reproducibility-builds` exited `0`; its log SHA-256 is `3593267c9d69d13ae4702e55cca497ab4a48a108483c59ffd7536d68c51aa8db`.

The companion JSON includes all final-RC2 evidence-file hashes and SHA-256 values for the RC2, source-provenance, V3 build, and phase-1 canonical manifests. Hashes identify committed evidence; they do not prove deployment or operational readiness.

## Unresolved findings / blockers

- **V2-ABI-001** — `blocking`: VaultfireTrustAttestation is the sole deployed V2 contract without a traceable canonical ABI; strict V2 ABI command exited 1.
- **X402-OWNER-EVIDENCE-001** — `fail-closed-not-ready`: Owner-provided Bazaar live evidence is absent; no payment, broadcast, or publication was attempted.
- **BOOTSTRAP-BLANK-PROFILE-001** — `intentionally-fail-closed`: The checked-in blank profile is not deployable-read-only and rejects before address or artifact access; no package file exists.
- **SOLANA-NATIVE-TOOLCHAIN-001** — `environment-not-executable`: Solana, Anchor, and Cargo were absent; no native build/test result is claimed.
- **SOLANA-MAINNET-READINESS-001** — `source-declared-not-ready`: The readiness model is source-only/not_deployed/configured_unverified, with no deployment or settlement evidence.
- **X402-DEPLOYMENT-IDENTITY** — `blocking`: Public OPTIONS behavior differed from the exact HEAD middleware; immutable deployment SHA and build artifact checksum are required.
- **X402-BASE-SETTLEMENT** — `blocking`: No owner-authorized wallet/budget, facilitator attestation, transaction, receipt verification, confirmation observation, or reorg drill is evidenced.
- **X402-SOLANA-SETTLEMENT** — `blocking`: 29 Solana options are metadata-only and 48 explicitly have no Solana settlement; none may be called settled.
- **X402-VALID-AFTER** — `blocking-for-v3-enablement`: Prepared V3 challenge/payment types do not carry a validAfter field; a signed not-before policy remains to be specified and tested.
- **X402-DURABLE-CONCURRENCY** — `blocking-for-writes`: In-process idempotency/receipt maps do not establish durable transactional uniqueness, outage recovery, or authenticated persistence/webhook delivery.
- **X402-VENDORED-DEPENDENCIES** — `non-code-verification-blocker`: Vendored Node installation did not complete within the captured environment limit; dependent Jest/TypeScript/lint evidence is unavailable.
- **SOLANA-DETERMINISTIC-SBF** — `unresolved`: Toolchain versions are not source-pinned for reproducible SBF artifacts; no signed build digest or deployed-bytecode comparison exists.
- **SOLANA-DEPLOYMENT-CUSTODY** — `unresolved`: No executable mainnet accounts, deployment transaction, approved IDs, upgrade-authority custody threshold, pause/rollback runbook, or accountable deployment partner is evidenced.
- **SOLANA-BRIDGE-AND-MLDSA** — `intentionally-unavailable`: Bridge/attestation and ML-DSA paths require future domain, replay, key governance, and adversarial-test design before enablement.
- **SOLANA-GOVERNANCE-DISPUTES** — `intentionally-incomplete`: Governance records bounded approvals but cannot execute privileged actions; slashing and adjudication/settlement are unavailable.
- **SOLANA-X402-LIFECYCLE** — `unresolved`: Unused verifier lacks one-time receipt storage, request/route binding, nonce, expiry policy, finalized commitment, and settlement reconciliation evidence.
- **SOLANA-PRIVACY** — `unresolved`: On-chain strings are immutable by default; no demonstrated consent, minimization, redaction, encryption, or deletion design is recorded.
- **SOLANA-PARTNER-ACTIVATION** — `unresolved`: Activation requires accountable partner approval, independent human report/disposition, reproducible build, deployment/custody, operations acceptance, and relevant x402 evidence.

## Remaining human decisions

- Obtain canonical or verified source/ABI evidence for VaultfireTrustAttestation, or keep the strict public-role gate closed.
- Commission an independent human review for an explicitly frozen source/build/deployment scope and disposition all findings; internal AI-assisted evidence is not a substitute.
- Decide whether any Base V3 deployment is desired; if so, select accountable signers, guardian, custody controls, addresses, caps, timelocks, reviewed calldata, and post-state verification before any proposal.
- Decide whether x402/Bazaar remains disabled or whether to authorize a tightly bounded non-production validation with named wallet, budget, routes, facilitator, finality policy, durable persistence, and evidence plan.
- Provide and run a pinned Solana/Anchor/Rust toolchain, then make a separate decision on Solana program IDs, custody, activation, bridge/attestation design, payment lifecycle, and privacy/data-minimization controls.
- Approve a V2 preservation and rollback disposition only after the unresolved ABI/API/route/withdrawal evidence is independently reviewed.

## No-deployment / no-signing confirmation

The final RC2 security record reports `deployed`, `signed`, `broadcast`, `spent`, `pushed`, `merged`, `productionAltered`, and `addressesOrRolesInvented` as `false`. The frozen Solana and x402 evidence also records no deployment, signing, broadcast, payment, listing publication, or live write for their reviewed scopes. This consolidation performed none.

## Appendix A — Release commit sequence

| Commit | Change summary | Files |
| --- | --- | ---: |
| `eb7c783` | ci: add Base read-only bootstrap release gate | 5 |
| `923bac8` | audit: add V2 to V3 compatibility inventory | 5 |
| `91f5404` | audit: record V2 compatibility evidence and canary gate | 6 |
| `9916b84` | audit: record final compatibility validation | 1 |
| `d0e63a4` | docs(base-v3): add fail-closed partner package | 24 |
| `97be412` | fix(bonds): reject stale accountability terms | 2 |
| `36d11e4` | docs(audit): freeze phase 2 bond evidence | 20 |
| `135ebf5` | ci: scope reproducibility builds to deployable artifacts | 2 |
| `e081aee` | ci: use Foundry path globs for reproducibility scope | 2 |
| `42b4586` | audit: record phase 1 engineering gate evidence | 108 |
| `9b7bdd4` | fix(solana): bound user PDA seeds and preserve release gates | 9 |
| `59977c8` | docs(audit): freeze final Solana V3 evidence | 16 |
| `9987d0d` | fix(pr7): bind x402 receipts and payment identities | 3 |
| `b556eb6` | docs(audit): record final x402 bazaar release evidence | 5 |
| `0b4038f` | docs(audit): retain x402 verification command logs | 23 |
| `d696395` | audit: record final RC2 validation evidence | 17 |

## Appendix B — Complete modified-file inventory

The committed range `eb7c7836e432f591745f807bd5199f5fa344b36f..d696395a00ee4cdb63f79024545601c54ec0d6fb` contains 240 modified paths (A=225, M=15). The complete, machine-readable inventory is the committed companion JSON field `release_delta_inventory.files`; it is included there rather than duplicated in this concise Markdown handoff.

## Evidence locations

- `release-evidence/final-rc2-validation-20260822/final-rc2-manifest.json`
- `audit-evidence/final-solana-v3-20260822/AUDIT_FINAL_SOLANA_V3_20260822.md`
- `audit-evidence/final-x402-bazaar-20260822/FINAL_X402_BAZAAR_AUDIT.md`
- `pr7/compat/V2_V3_COMPATIBILITY_MATRIX.md`
- `pr10/partner-package/README.md`
