{
  "schemaVersion": 1,
  "packageId": "m1-implementation-validation-v1",
  "publishedAt": "2026-08-02",
  "status": "implementation-accepted",
  "acceptedSource": {
    "repository": "https://github.com/PaulKinlan/wasm-vs-js",
    "commit": "9c309c4941d1b8550c15f8549f95a5636a634ef6",
    "scope": "M1 controlled sum-u32 implementation and local evidence path"
  },
  "claims": {
    "implementationAccepted": true,
    "performanceClaimAccepted": false,
    "pairedFreshLaunchCorpusExists": false,
    "minimumRequiredPairs": 20,
    "statement": "This package records an independently accepted implementation and a parent-reported, unverified manual runtime attestation. It contains no benchmark result or JavaScript-versus-Wasm performance conclusion."
  },
  "verification": {
    "command": "deno task check",
    "result": "passed",
    "tests": {
      "passed": 16,
      "failed": 0,
      "skipped": 0
    },
    "gates": [
      "reproducible build",
      "format",
      "lint",
      "typecheck",
      "planning invariants",
      "schema and semantic contract invariants",
      "Deno tests"
    ],
    "negativeContractInvariants": 15
  },
  "artifact": {
    "route": "/artifacts/sum-u32/sum-u32.wasm",
    "buildManifestRoute": "/artifacts/sum-u32/build-manifest.json",
    "bytes": 96,
    "sha256": "9c4ce5f0d9e32cdd364b73b2697566e7396368d9867d9bc3d939bb2063583a6d",
    "gzipBytes": 113,
    "brotliBytes": 88,
    "acceptedBuildSourceSha256": "f33ca41e3504236c48ddaef1ec345ca9084ef3d1a1b6b01160921744e9dbb2ac",
    "reproductionCommand": "deno task build"
  },
  "runtimeValidation": {
    "status": "parent-attested-unverified",
    "browser": "HeadlessChrome 150.0.0.0 (Blink/V8)",
    "route": "http://127.0.0.1:19000/run",
    "observedAssertions": [
      "The visible Validate and run pair control completed.",
      "WebAssembly compiled under script-src self plus wasm-unsafe-eval; no CSP compile denial occurred.",
      "The controlled JavaScript and linear-Wasm variants both completed correctness and fixed-work validation.",
      "Two POST /api/runs requests returned HTTP 201.",
      "The visible status reported that the pair was stored."
    ],
    "retainedBrowserArtifacts": false,
    "retainedBrowserArtifactReason": "No screenshot or replayable MCP log was retained for this manual validation; this package does not imply otherwise.",
    "cleanup": {
      "ownedServerPid": 2894285,
      "ownedServerStopped": true,
      "generatedValidationRecordsRemoved": 2,
      "mcpPageClosed": true,
      "browserProcessAction": "not-applicable-reused-existing-mcp-browser"
    }
  },
  "independentReview": {
    "verdict": "ACCEPT",
    "reviewRun": "f2f58de5",
    "blockers": 0,
    "highFindings": 0,
    "mediumFindings": 0,
    "scope": "Exact commit implementation review; the runtime attestation and all browser and performance claims were not independently assessed."
  },
  "limitations": [
    "The two manual validation records were intentionally removed after runtime verification and are not published as raw evidence.",
    "No screenshot, raw MCP transcript, raw run payload, timing sample, ratio, confidence interval, or winner claim is published.",
    "The required corpus of at least 20 paired fresh launches has not been collected.",
    "M1 performance acceptance remains pending the preregistered precision target or cap and independent evidence review."
  ]
}