{
  "capsule": {
    "schema": "apk-scanner.proof/v2",
    "issuer": "apk-scanner.com",
    "issued_at": "2026-10-13T20:05:44.608Z",
    "app": {
      "app_id": "com.diese9.metronome",
      "title": "D9 Metronome",
      "version": "1.2.0"
    },
    "analysis": {
      "issues": [],
      "stages": {
        "pii": "complete",
        "sbom": "complete",
        "signing": "certificate_parsed",
        "strings": "complete",
        "manifest": "complete"
      },
      "status": "complete",
      "grading": {
        "policy": "static-coverage-v1",
        "blockers": [],
        "eligible": true
      },
      "timings_ms": {
        "total": 9042.017,
        "harvest": 2948.5730000000035,
        "detectors": 5585.9160000000065
      },
      "bytes_total": 59753456,
      "bytes_scanned": 59753456,
      "bytes_skipped": 0,
      "files_processed": 646,
      "coverage_version": 2,
      "string_encodings": [
        "ascii",
        "utf16le"
      ],
      "signature_validation": "not_performed"
    },
    "provenance": {
      "mode": "static",
      "artifacts": [
        {
          "name": "base.apk",
          "sha256": "bedaf6f751f50c980c8687d9bf1f268ff5e386a6f711e4e4293531895a174aa7"
        },
        {
          "name": "config.arm64_v8a.apk",
          "sha256": "b8c9bdd95d1624e65ad8828321b29976b20e5b3aeb9338a0b40a020332410d2d"
        },
        {
          "name": "config.en.apk",
          "sha256": "49e792ebb0a8adab5d4fa4ed082d66430f7301c6f999009316ac9af1aae5d265"
        },
        {
          "name": "config.xxhdpi.apk",
          "sha256": "043dd035855184dc8f13a99b8575086525af236aedb7931a0a474879f6edbe59"
        }
      ],
      "ruleset_sha256": "3bb79cc3710b0fb021feaa322578f4cffe08396a97c51b34df092b5a05891d5e"
    },
    "apk_sha256": "bedaf6f751f50c980c8687d9bf1f268ff5e386a6f711e4e4293531895a174aa7",
    "scan": {
      "scan_id": "242bf07e-e451-47f9-ab9a-0059cc72d9e0",
      "scanned_at": "2026-10-13T06:43:27.501Z",
      "grade": "A",
      "score": 92
    },
    "apk_signer": {
      "scheme": "v3",
      "subject_o": "Google Inc.",
      "subject_cn": "Android",
      "sha256": "68e4b53218a6de7c49ad7e02d7cdcff297958f936491269652620b120327cf69",
      "not_after": "2056-07-24T12:47:57+00:00"
    },
    "counts": {
      "critical": 0,
      "high": 0,
      "medium": 1,
      "low": 3
    },
    "findings": [
      {
        "finding_type": 20,
        "severity": "low",
        "title": "Google API key (client-shipped; restriction unverified)",
        "redacted_display": "AIza•••••••• (21–40 chars, redacted)",
        "fingerprint": "7c0875e5120aa873e1b1c26f46153a9d514ceb46d9778f4eeef37c9276bb2a90",
        "verified": false,
        "cwe": [
          "CWE-798"
        ],
        "masvs": [
          "MASVS-STORAGE-1"
        ],
        "remediation": "Restrict the API key (application + API restrictions in Google Cloud Console); a client-shipped key is public, so restriction is the control."
      },
      {
        "finding_type": 53,
        "severity": "low",
        "title": "Firebase Storage bucket reference",
        "redacted_display": "████████████",
        "fingerprint": "6da605c01a32d6178ae1e6876876e3de02277efaeb0bf30b781056b6efdcc7a8",
        "verified": false,
        "cwe": [
          "CWE-200",
          "CWE-284"
        ],
        "masvs": [
          "MASVS-STORAGE-2"
        ],
        "remediation": "Confirm the bucket/database denies anonymous read (enable auth / storage rules / RLS), then audit its contents for data already exposed while it was open."
      },
      {
        "finding_type": 53,
        "severity": "low",
        "title": "Firebase Storage bucket reference",
        "redacted_display": "████████████",
        "fingerprint": "b6e2cb8eb4bf3d0a7bcb1c02e7aaa6b80181f3fefcd2655ab608c7c76f9d6977",
        "verified": false,
        "cwe": [
          "CWE-200",
          "CWE-284"
        ],
        "masvs": [
          "MASVS-STORAGE-2"
        ],
        "remediation": "Confirm the bucket/database denies anonymous read (enable auth / storage rules / RLS), then audit its contents for data already exposed while it was open."
      },
      {
        "finding_type": 62,
        "severity": "medium",
        "title": "com.squareup.okhttp3:okhttp 3.12.13 — CVE-2021-0341",
        "redacted_display": "CVE-2021-0341 (fixed in 4.9.2)",
        "fingerprint": "b35496237e28b68c8e0d69cddebe93abcbdeb329cec963569542cc48edb144a4",
        "verified": false,
        "cwe": [
          "CWE-937",
          "CWE-1104"
        ],
        "masvs": [
          "MASVS-CODE-3"
        ],
        "remediation": "Confirm the bundled version, then upgrade the dependency to a patched release; track third-party components in an SBOM."
      }
    ],
    "live_verification": {
      "verified_count": 0,
      "items": []
    },
    "trackers_count": 6,
    "pii": {
      "sources": 5,
      "identifiers": [
        "Advertising ID (AAID)",
        "Android ID",
        "Device ID / IMEI"
      ],
      "destinations": 4
    },
    "sbom": {
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      "vuln_count": 1,
      "components": [
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          "version": "1.9.0",
          "cves": []
        },
        {
          "name": "androidx.activity:activity-ktx",
          "version": "1.9.0",
          "cves": []
        },
        {
          "name": "androidx.annotation:annotation-experimental",
          "version": "1.4.1",
          "cves": []
        },
        {
          "name": "androidx.appcompat:appcompat",
          "version": "1.1.0",
          "cves": []
        },
        {
          "name": "androidx.appcompat:appcompat-resources",
          "version": "1.1.0",
          "cves": []
        },
        {
          "name": "androidx.asynclayoutinflater:asynclayoutinflater",
          "version": "1.0.0",
          "cves": []
        },
        {
          "name": "androidx.browser:browser",
          "version": "1.9.0",
          "cves": []
        },
        {
          "name": "androidx.coordinatorlayout:coordinatorlayout",
          "version": "1.0.0",
          "cves": []
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        {
          "name": "androidx.core:core",
          "version": "1.17.0",
          "cves": []
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        {
          "name": "androidx.core:core-ktx",
          "version": "1.17.0",
          "cves": []
        },
        {
          "name": "androidx.core:core-viewtree",
          "version": "1.0.0",
          "cves": []
        },
        {
          "name": "androidx.credentials:credentials",
          "version": "1.2.0-rc01",
          "cves": []
        },
        {
          "name": "androidx.credentials:credentials-play-services-auth",
          "version": "1.2.0-rc01",
          "cves": []
        },
        {
          "name": "androidx.cursoradapter:cursoradapter",
          "version": "1.0.0",
          "cves": []
        },
        {
          "name": "androidx.customview:customview",
          "version": "1.1.0",
          "cves": []
        },
        {
          "name": "androidx.datastore:datastore",
          "version": "1.1.7",
          "cves": []
        },
        {
          "name": "androidx.datastore:datastore-core",
          "version": "1.1.7",
          "cves": []
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        {
          "name": "androidx.datastore:datastore-preferences",
          "version": "1.1.7",
          "cves": []
        },
        {
          "name": "androidx.datastore:datastore-preferences-core",
          "version": "1.1.7",
          "cves": []
        },
        {
          "name": "androidx.documentfile:documentfile",
          "version": "1.0.0",
          "cves": []
        },
        {
          "name": "androidx.drawerlayout:drawerlayout",
          "version": "1.0.0",
          "cves": []
        },
        {
          "name": "androidx.exifinterface:exifinterface",
          "version": "1.3.6",
          "cves": []
        },
        {
          "name": "androidx.fragment:fragment",
          "version": "1.7.1",
          "cves": []
        },
        {
          "name": "androidx.fragment:fragment-ktx",
          "version": "1.7.1",
          "cves": []
        },
        {
          "name": "androidx.interpolator:interpolator",
          "version": "1.0.0",
          "cves": []
        },
        {
          "name": "androidx.legacy:legacy-support-core-ui",
          "version": "1.0.0",
          "cves": []
        },
        {
          "name": "androidx.legacy:legacy-support-core-utils",
          "version": "1.0.0",
          "cves": []
        },
        {
          "name": "androidx.lifecycle:lifecycle-livedata",
          "version": "2.8.7",
          "cves": []
        },
        {
          "name": "androidx.lifecycle:lifecycle-livedata-core",
          "version": "2.8.7",
          "cves": []
        },
        {
          "name": "androidx.lifecycle:lifecycle-livedata-core-ktx",
          "version": "2.8.7",
          "cves": []
        },
        {
          "name": "androidx.lifecycle:lifecycle-process",
          "version": "2.8.7",
          "cves": []
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        {
          "name": "androidx.lifecycle:lifecycle-runtime",
          "version": "2.8.7",
          "cves": []
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        {
          "name": "androidx.lifecycle:lifecycle-runtime-ktx",
          "version": "2.8.7",
          "cves": []
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        {
          "name": "androidx.lifecycle:lifecycle-viewmodel",
          "version": "2.8.7",
          "cves": []
        },
        {
          "name": "androidx.lifecycle:lifecycle-viewmodel-ktx",
          "version": "2.8.7",
          "cves": []
        },
        {
          "name": "androidx.lifecycle:lifecycle-viewmodel-savedstate",
          "version": "2.8.7",
          "cves": []
        },
        {
          "name": "androidx.loader:loader",
          "version": "1.0.0",
          "cves": []
        },
        {
          "name": "androidx.localbroadcastmanager:localbroadcastmanager",
          "version": "1.0.0",
          "cves": []
        },
        {
          "name": "androidx.media:media",
          "version": "1.7.0",
          "cves": []
        },
        {
          "name": "androidx.preference:preference",
          "version": "1.2.1",
          "cves": []
        },
        {
          "name": "androidx.print:print",
          "version": "1.0.0",
          "cves": []
        },
        {
          "name": "androidx.privacysandbox.ads:ads-adservices",
          "version": "1.1.0-beta11",
          "cves": []
        },
        {
          "name": "androidx.privacysandbox.ads:ads-adservices-java",
          "version": "1.1.0-beta11",
          "cves": []
        },
        {
          "name": "androidx.profileinstaller:profileinstaller",
          "version": "1.3.1",
          "cves": []
        },
        {
          "name": "androidx.recyclerview:recyclerview",
          "version": "1.0.0",
          "cves": []
        },
        {
          "name": "androidx.savedstate:savedstate",
          "version": "1.2.1",
          "cves": []
        },
        {
          "name": "androidx.savedstate:savedstate-ktx",
          "version": "1.2.1",
          "cves": []
        },
        {
          "name": "androidx.slidingpanelayout:slidingpanelayout",
          "version": "1.2.0",
          "cves": []
        },
        {
          "name": "androidx.startup:startup-runtime",
          "version": "1.1.1",
          "cves": []
        },
        {
          "name": "androidx.swiperefreshlayout:swiperefreshlayout",
          "version": "1.0.0",
          "cves": []
        },
        {
          "name": "androidx.tracing:tracing",
          "version": "1.2.0",
          "cves": []
        },
        {
          "name": "androidx.transition:transition",
          "version": "1.4.1",
          "cves": []
        },
        {
          "name": "androidx.vectordrawable:vectordrawable",
          "version": "1.1.0",
          "cves": []
        },
        {
          "name": "androidx.vectordrawable:vectordrawable-animated",
          "version": "1.1.0",
          "cves": []
        },
        {
          "name": "androidx.versionedparcelable:versionedparcelable",
          "version": "1.1.1",
          "cves": []
        },
        {
          "name": "androidx.viewpager:viewpager",
          "version": "1.0.0",
          "cves": []
        },
        {
          "name": "androidx.window.extensions.core:core",
          "version": "1.0.0",
          "cves": []
        },
        {
          "name": "androidx.window:window",
          "version": "1.2.0",
          "cves": []
        },
        {
          "name": "androidx.window:window-java",
          "version": "1.2.0",
          "cves": []
        },
        {
          "name": "com.squareup.okhttp3:okhttp",
          "version": "3.12.13",
          "cves": [
            "CVE-2021-0341"
          ]
        },
        {
          "name": "kotlinx:coroutines_android",
          "version": "1.8.1",
          "cves": []
        },
        {
          "name": "kotlinx:coroutines_core",
          "version": "1.8.1",
          "cves": []
        },
        {
          "name": "kotlinx:coroutines_play_services",
          "version": "1.8.1",
          "cves": []
        }
      ]
    },
    "control_coverage": {
      "schema": "apk-scanner.coverage/v1",
      "framework": "OWASP MASVS v2",
      "disclaimer": "Static, metadata-only analysis. Each control is scored evidence-for / gap-signal / requires-manual-testing. This is evidence toward a MASVS assessment, NOT a certification — apk-scanner.com is not an authorized assessment lab. Absence of a static finding does not prove a control passes.",
      "rows": [
        {
          "control": "MASVS-STORAGE-1",
          "category": "STORAGE",
          "title": "The app securely stores sensitive data.",
          "static": "partial",
          "status": "gap-detected",
          "count": 1,
          "findings": [
            {
              "finding_type": 20,
              "key": "google_api_key",
              "title": "Google API key (client-shipped; restriction unverified)",
              "severity": "low",
              "verified": false,
              "relationship": "gap-signal",
              "cwe": [
                798
              ]
            }
          ]
        },
        {
          "control": "MASVS-STORAGE-2",
          "category": "STORAGE",
          "title": "The app prevents leakage of sensitive data.",
          "static": "partial",
          "status": "gap-detected",
          "count": 2,
          "findings": [
            {
              "finding_type": 53,
              "key": "firebase_storage",
              "title": "Firebase Storage bucket reference",
              "severity": "low",
              "verified": false,
              "relationship": "gap-signal",
              "cwe": [
                200,
                284
              ]
            },
            {
              "finding_type": 53,
              "key": "firebase_storage",
              "title": "Firebase Storage bucket reference",
              "severity": "low",
              "verified": false,
              "relationship": "gap-signal",
              "cwe": [
                200,
                284
              ]
            }
          ]
        },
        {
          "control": "MASVS-CRYPTO-1",
          "category": "CRYPTO",
          "title": "The app employs current strong cryptography and uses it according to best practices.",
          "static": "partial",
          "status": "no-static-findings",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-CRYPTO-2",
          "category": "CRYPTO",
          "title": "The app performs key management according to best practices.",
          "static": "partial",
          "status": "no-static-findings",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-AUTH-1",
          "category": "AUTH",
          "title": "The app uses secure authentication and authorization protocols.",
          "static": "manual",
          "status": "requires-manual-testing",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-AUTH-2",
          "category": "AUTH",
          "title": "The app performs local authentication securely.",
          "static": "manual",
          "status": "requires-manual-testing",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-AUTH-3",
          "category": "AUTH",
          "title": "The app secures sensitive operations with additional authentication.",
          "static": "manual",
          "status": "requires-manual-testing",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-NETWORK-1",
          "category": "NETWORK",
          "title": "The app secures all network traffic according to current best practices.",
          "static": "yes",
          "status": "no-static-findings",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-NETWORK-2",
          "category": "NETWORK",
          "title": "The app verifies the identity of the remote endpoint (e.g. certificate pinning).",
          "static": "partial",
          "status": "no-static-findings",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-PLATFORM-1",
          "category": "PLATFORM",
          "title": "The app uses IPC mechanisms securely.",
          "static": "yes",
          "status": "no-static-findings",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-PLATFORM-2",
          "category": "PLATFORM",
          "title": "The app uses WebViews securely.",
          "static": "partial",
          "status": "no-static-findings",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-PLATFORM-3",
          "category": "PLATFORM",
          "title": "The app uses the user interface securely.",
          "static": "manual",
          "status": "requires-manual-testing",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-CODE-1",
          "category": "CODE",
          "title": "The app requires an up-to-date platform version.",
          "static": "yes",
          "status": "no-static-findings",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-CODE-2",
          "category": "CODE",
          "title": "The app has a mechanism for enforcing updates.",
          "static": "manual",
          "status": "requires-manual-testing",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-CODE-3",
          "category": "CODE",
          "title": "The app only uses software components without known vulnerabilities.",
          "static": "yes",
          "status": "gap-detected",
          "count": 1,
          "findings": [
            {
              "finding_type": 62,
              "key": "sbom_cve",
              "title": "com.squareup.okhttp3:okhttp 3.12.13 — CVE-2021-0341",
              "severity": "medium",
              "verified": false,
              "relationship": "gap-signal",
              "cwe": [
                937,
                1104
              ]
            }
          ]
        },
        {
          "control": "MASVS-CODE-4",
          "category": "CODE",
          "title": "The app validates and sanitizes all untrusted inputs and follows secure-coding practice.",
          "static": "partial",
          "status": "no-static-findings",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-RESILIENCE-1",
          "category": "RESILIENCE",
          "title": "The app validates the integrity of the platform.",
          "static": "manual",
          "status": "requires-manual-testing",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-RESILIENCE-2",
          "category": "RESILIENCE",
          "title": "The app implements anti-tampering mechanisms.",
          "static": "manual",
          "status": "requires-manual-testing",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-RESILIENCE-3",
          "category": "RESILIENCE",
          "title": "The app implements anti-static-analysis mechanisms.",
          "static": "manual",
          "status": "requires-manual-testing",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-RESILIENCE-4",
          "category": "RESILIENCE",
          "title": "The app implements anti-dynamic-analysis techniques.",
          "static": "manual",
          "status": "requires-manual-testing",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-PRIVACY-1",
          "category": "PRIVACY",
          "title": "The app minimizes access to sensitive data and resources.",
          "static": "yes",
          "status": "no-static-findings",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-PRIVACY-2",
          "category": "PRIVACY",
          "title": "The app prevents identification of the user.",
          "static": "yes",
          "status": "no-static-findings",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-PRIVACY-3",
          "category": "PRIVACY",
          "title": "The app is transparent about data collection and usage.",
          "static": "yes",
          "status": "no-static-findings",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-PRIVACY-4",
          "category": "PRIVACY",
          "title": "The app offers user control over their data.",
          "static": "manual",
          "status": "requires-manual-testing",
          "count": 0,
          "findings": []
        }
      ],
      "categories": [
        {
          "category": "STORAGE",
          "controls": 2,
          "gaps": 2,
          "verified": 0,
          "manual": 0
        },
        {
          "category": "CRYPTO",
          "controls": 2,
          "gaps": 0,
          "verified": 0,
          "manual": 0
        },
        {
          "category": "AUTH",
          "controls": 3,
          "gaps": 0,
          "verified": 0,
          "manual": 3
        },
        {
          "category": "NETWORK",
          "controls": 2,
          "gaps": 0,
          "verified": 0,
          "manual": 0
        },
        {
          "category": "PLATFORM",
          "controls": 3,
          "gaps": 0,
          "verified": 0,
          "manual": 1
        },
        {
          "category": "CODE",
          "controls": 4,
          "gaps": 1,
          "verified": 0,
          "manual": 1
        },
        {
          "category": "RESILIENCE",
          "controls": 4,
          "gaps": 0,
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        },
        {
          "category": "PRIVACY",
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  },
  "proof": {
    "alg": "ed25519",
    "key_id": "IE6LeZNX4dAAPLGr",
    "digest_sha256": "93a6d0895336bad1d38739c32d0fe1f395b4d31c2ed37cbfc5f8692a4a1c921a",
    "signature": "cB0Kuzta0bB6sdM5LpU4hd7R6V4b3x0x13pa3vMwApBUHPrnrQ3CrLhbU6vMJ1rm5lz0Fhc+Q1rX8f9U8cUeAg==",
    "public_key_pem": "-----BEGIN PUBLIC KEY-----\nMCowBQYDK2VwAyEAwH2fYdYB5nD0CQslDtG3FgafcJBoOX2OGoT80Woksrk=\n-----END PUBLIC KEY-----\n",
    "verify_url": "https://apk-scanner.com/verify"
  }
}