{
  "schemaVersion": 1,
  "fixtureId": "effects-export-handoff-local-v1",
  "performedAt": "2026-08-23",
  "generator": "scripts/generate-export-handoff-fixture.mjs",
  "purpose": "Immutable source, receiver derivative, rights note, probe record, checksum, and rollback rehearsal",
  "environment": [
    "Local FFmpeg-generated synthetic stereo source",
    "ffprobe inspection records",
    "SHA-256 package verification"
  ],
  "receiverProfile": {
    "id": "local-archive-bwf-v1",
    "container": "wav",
    "codec": "pcm_s24le",
    "sampleRate": 48000,
    "channels": 2,
    "bitsPerSample": 24
  },
  "artifacts": {
    "sourceMaster": {
      "bytes": 768266,
      "sha256": "17580362d13c306e7107711af0ae0d5f67b8bb97663d04a7e8702eefd2f7d746"
    },
    "receiverDerivative": {
      "bytes": 288868,
      "sha256": "f86a7cca67dbd7d974a1abe67fa61196687fc3eeb54583f29d955ee0ea04b158"
    },
    "rightsNote": {
      "bytes": 370,
      "sha256": "e72b396e7400e9d173db76fbfcbe5b2c89d695c3eb612e753642c2af96e5a347"
    }
  },
  "result": {
    "manifestAndChecksumsCreated": true,
    "sourceKeptImmutable": true,
    "derivativeCanBeRegenerated": true,
    "regenerateCommand": "node scripts/generate-export-handoff-fixture.mjs"
  },
  "rights": "The fixture uses locally generated 997 Hz and 1511 Hz sine signals and no third-party recording.",
  "limitations": [
    "This is a local file-structure, handoff, and recovery rehearsal, not EBU certification.",
    "It does not prove external platform acceptance, listening quality, delivery acceptance, or ownership of other audio."
  ]
}