{
  "project": "John Madden Football 93",
  "version": "0.1.0",
  "releaseDate": "2026-10-26",
  "platform": "Sega Genesis",
  "edition": "U.S. supplied cartridge, GM T-50446 -00",
  "playableEdition": "Original game through self-hosted EmulatorJS 4.2.3 + Genesis Plus GX",
  "romSha256": "8958d7d382aa99d91122564397a5aa438c26f4bab2c20626756f7802b2467624",
  "originalArchiveAndRomUnchanged": true,
  "knownGoodDumpIndependentlyVerified": false,
  "romChecksumNote": "The supplied ROM stores header checksum A107 while its computed word sum is2A24. It is preserved unchanged; the exact supplied input hash is verified, not a known-good dump identity.",
  "browserFeatures": [
    "Keyboard and on-screen controls",
    "Gamepad mapping and shared reconnect interface",
    "Pause, fullscreen and volume",
    "Browser snapshot storage",
    "Portable snapshot export/import bound to the supplied ROM and retained WASM"
  ],
  "saveFormat": "cosom-madden93-genesis-snapshot-v1; full emulator snapshots, separate from any cartridge battery save",
  "audio": {
    "musicCommands": 3,
    "effectSlots": 53,
    "sampleTerminatorClicks": [
      1,
      3
    ],
    "tableSlotsRendered": true,
    "explicitPitchVariants": 12,
    "psgCrowdVolumeAuditions": 16,
    "soundEffectsCatalogEntries": 81,
    "allContextualMixesComplete": false,
    "eventNamesComplete": false,
    "physicalHardwareAudioCompared": false
  },
  "musicTracks": 3,
  "soundEffectsCatalogEntries": 81,
  "graphics": {
    "sceneSnapshots": 35,
    "framebufferCaptures": 35,
    "vdpAtlasImages": 140,
    "vdpPatternSlotsPerSnapshot": 2048,
    "uniqueCaptured32ByteVramBlocks": 7916,
    "layerImages": 105,
    "spriteSheets": 35,
    "spriteTableEntries": 1507,
    "romAuditSheets": 32,
    "romAuditAlignedBlocks": 32768,
    "allRomBytesAudited": true,
    "allGameGraphicsRecovered": false,
    "allScenesOrAnimationsCaptured": false,
    "assembledSpriteLayers": 35,
    "pngImages": 630,
    "validatedContainers": 124,
    "rawContainers": 94,
    "compressedContainers": 30,
    "tilemapContainers": 54,
    "spriteAnimationContainers": 70,
    "spriteAnimationFrames": 1073,
    "decodedPatterns": 20531,
    "decodedPatternBytes": 656992,
    "newGalleryPngs": 248,
    "externalPaletteContainers": 28,
    "dynamicPatternIndexContainers": 1
  },
  "limits": [
    "No full game source reconstruction.",
    "No complete season or every-scene playthrough.",
    "No claim of complete contextual sound mixtures or every graphics/animation resource.",
    "Physical controller hardware and physical Genesis audio output were not compared."
  ],
  "provenance": "provenance.json",
  "runtimeProvenance": "play/runtime-provenance.json",
  "audioProvenance": "music/source/audio-provenance.json",
  "graphicsProvenance": "images/manifest.json",
  "releaseInventory": "release.json"
}