Consumer AI builders and "vibe-coding" tools emit unstructured code with no contract, no formal bounds, and no verification. They cannot produce proof. A gorgeous dashboard that silently leaks User A’s data to User B or returns mocked HTTP 200 OK stubs is not an application—it is a critical liability.

ShipGate is the independent attestation spine. Every system gets a contract. Every change gets proof. Every action gets an authority decision.

flowchart TD
    A["Declared Business Contract<br/><code>intent-lock.json</code>"] --> B["Ring 0: Static AST & Invariant Gate<br/>11 Fail-Closed Invariants"]
    B --> C["Ring 1: Adversarial Stub Scanner<br/>Anti-Mock / Fake-Success Detection"]
    C --> D["Ring 2: Sandboxed Runtime Boot<br/>Isolated Schema & Live Origin"]
    D --> E["15-Beat Did-Chain Journey Execution<br/>Real HTTP Drivers & State Mutations"]
    E --> F["Ring 3: SMT Formal Verification<br/>Inductive Invariant Checking & Mutants"]
    F --> G["Cryptographic Attestation Receipt<br/><code>shipgate.json (VERDICT: SHIP)</code>"]

┌─────────────────────────────────────────────────────────────────────────────┐
│ RING 0 │ STATIC AST & INVARIANT FIDELITY GATE                               │
│        │ Zero-leak credential audit, ghost-route detection, phantom deps,  │
│        │ and schema-to-route type alignment.                                │
├────────┼────────────────────────────────────────────────────────────────────┤
│ RING 1 │ ADVERSARIAL ANTI-STUB & ANTI-FAKE SCANNER                          │
│        │ Hard fail-closed on mocked return values, simulated successes,     │
│        │ hardcoded status codes, and empty action handler bodies.           │
├────────┼────────────────────────────────────────────────────────────────────┤
│ RING 2 │ 15-BEAT DID-CHAIN RUNTIME EXECUTION                                │
│        │ Provisions isolated database schemas, boots real HTTP endpoints,  │
│        │ and drives genuine browser journeys across the full user lifecycle.│
├────────┼────────────────────────────────────────────────────────────────────┤
│ RING 3 │ FORMAL SMT VERIFICATION & MUTANT TWINS                             │
│        │ Symbolic execution (Halmos/SMT). Every green proof must have a     │
│        │ broken mutant twin that is proven refuted to prevent vacuous passes│
└─────────────────────────────────────────────────────────────────────────────┘

Before an artifact is permitted to boot, it must pass 11 fail-closed static checks:

• Ghost Route Detection: Ensures zero client-side RPC calls target nonexistent backend endpoints.
• Phantom Dependency Audit: Flags and halts on undeclared runtime imports or unpinned transitive trees.
• Hardcoded Secret Scanners: Real-time identification of tokens (sk_live_, private keys) prior to build lowering.
• Contract-to-Schema Parity: Formal verification that database migration tables match declared entity clauses.

AI emitters love to fake it. ShipGate refuses:

• Scans generated server actions, mutations, and database adapters for simulated data payloads.
• Flags and rejects return { success: true } blocks with no durable database mutation or side-effect record.
• Any surface that fakes core functionality forces an immediate DECISION: NO_SHIP.

Proof requires live execution in isolated environments:

• Spins up an isolated, sandboxed PostgreSQL schema and boots the production Next.js / Node runtime.
• Drives 15 deterministic customer-journey beats (provision $\rightarrow$ invite $\rightarrow$ authenticate $\rightarrow$ mutate $\rightarrow$ query $\rightarrow$ audit $\rightarrow$ revoke).
• Observes durable database writes, cryptographic receipts, and real HTTP status codes.

For mission-critical state transitions, token mechanics, and financial invariants:

• Executes symbolic bounded proofs with Halmos and SMT solvers.
• The Cardinal Honesty Rule: A proof is worthless without a refuted mutant twin. Every verified contract is paired with a deliberately compromised sibling. If the compromised twin does not fail, the proof is vacuous and execution FAILS CLOSED.

When an application passes all verification rings, ShipGate emits a sealed cryptographic receipt:

{
  "attestation_version": "2.4.0",
  "contract_hash": "sha256:4f89d31a89c02e5b7e8d64f0b3e7a91c890123456789abcdef",
  "verdict": "SHIP",
  "timestamp": "2026-10-07T14:23:00Z",
  "rings": {
    "ring_0_static_fidelity": {
      "status": "PASS",
      "invariants_checked": 11,
      "violations": 0
    },
    "ring_1_stub_scanner": {
      "status": "PASS",
      "mocked_surfaces_detected": 0,
      "fake_success_detected": 0
    },
    "ring_2_did_chain": {
      "status": "PASS",
      "beats_executed": 15,
      "durable_mutations_observed": 42,
      "schema_isolation_verified": true
    },
    "ring_3_formal_smt": {
      "status": "PASS",
      "symbolic_invariants_proven": 8,
      "refuted_mutant_twins": 8,
      "vacuous_passes": 0
    }
  },
  "signature": "ed25519:9a8b7c6d5e4f3a2b1c0d9e8f7a6b5c4d3e2f1a0b..."
}

We publish our benchmark harnesses and verification suites openly:

• Ship-gate/zeta-benchmarks:
  • Halmos SMT Suites: Inductive invariant proofs and non-vacuous mutant counterexamples.
  • Safety Corpus: Planted-defect detection suite (ghost-route, hardcoded-secret, phantom-dep, missing-truthpack).
  • Reproducibility Harness: Complete instructions for Foundry, Halmos 0.3.3, and solc 0.8.20.
  • Cost & Throughput Ledgers: Per-app token accounting and performance benchmarks.