{
  "schema": 1,
  "checked_utc": "2026-07-27",
  "scope": {
    "description": "Bounded recovery attempt using only the original page's documented player, download, S3-object, and S3-spectrogram URL family.",
    "not_a_claim": "No negative archive result proves that a private browser cache, offline download, unindexed mirror, or future discovery does not exist."
  },
  "sources": {
    "metadata_record": {
      "path": "archive/recon/audio-files/02_beeps-wav_instaudio_file-metadata-VERBATIM.md",
      "sha256": "be6ffece3ac69ff1b7686c9a53f81eb6c1165c7ba3527e03893a6303cedacbb0"
    },
    "transcript_audit": {
      "path": "solution/wav-transcript-audit.json",
      "sha256": "de0a7f553319166b2cff794213115fa98ee3de0ab0b3e64e2c01cbf6cff3e4a2"
    }
  },
  "targets": {
    "object_url": "https://instaudio.s3.amazonaws.com/live/private/7fa2c325c0a7395c8856c5bb4f11b5616c6f60c5.wav",
    "spectrogram_url": "https://instaudio.s3.amazonaws.com/live/private/7fa2c325c0a7395c8856c5bb4f11b5616c6f60c5.png",
    "player_url": "https://instaud.io/private/7fa2c325c0a7395c8856c5bb4f11b5616c6f60c5",
    "download_url": "https://instaud.io/private/7fa2c325c0a7395c8856c5bb4f11b5616c6f60c5/download"
  },
  "live_object_check": {
    "url": "https://instaudio.s3.amazonaws.com/live/private/7fa2c325c0a7395c8856c5bb4f11b5616c6f60c5.wav",
    "result": "HTTP 404 application/xml; S3 error code NoSuchBucket, not audio/WAV bytes.",
    "checked_utc": "2026-07-27",
    "limit": "The current response identifies a deleted host bucket; it does not provide a historical file hash or recover original content."
  },
  "wayback_cdx": {
    "checked_utc": "2026-07-27",
    "exact_object_result": "[]",
    "object_prefix_result": "[]",
    "source": "solution/wav-transcript-audit.json"
  },
  "common_crawl": {
    "checked_utc": "2026-07-27",
    "collection_inventory": "https://index.commoncrawl.org/collinfo.json",
    "collections": [
      "CC-MAIN-2017-13",
      "CC-MAIN-2017-17",
      "CC-MAIN-2017-22",
      "CC-MAIN-2017-26",
      "CC-MAIN-2017-30",
      "CC-MAIN-2017-34",
      "CC-MAIN-2017-39",
      "CC-MAIN-2017-43",
      "CC-MAIN-2017-47",
      "CC-MAIN-2017-51",
      "CC-MAIN-2018-05",
      "CC-MAIN-2018-09",
      "CC-MAIN-2018-13",
      "CC-MAIN-2018-17",
      "CC-MAIN-2018-22",
      "CC-MAIN-2018-26",
      "CC-MAIN-2018-30",
      "CC-MAIN-2018-34",
      "CC-MAIN-2018-39",
      "CC-MAIN-2018-43",
      "CC-MAIN-2018-47",
      "CC-MAIN-2018-51"
    ],
    "coverage": "Every Common Crawl collection from 2017-13 (the first collection after the upload) through 2018-51.",
    "queries": [
      {
        "target": "instaudio.s3.amazonaws.com/live/private/7fa2c325c0a7395c8856c5bb4f11b5616c6f60c5",
        "match_type": "prefix",
        "query_template": "https://index.commoncrawl.org/{collection}-index?url=instaudio.s3.amazonaws.com%2Flive%2Fprivate%2F7fa2c325c0a7395c8856c5bb4f11b5616c6f60c5&matchType=prefix&output=json",
        "final_status_counts": {
          "404_no_captures": 22
        },
        "retry_note": "Initial 502/504 responses for 2018-17, 2018-30, and 2018-51 were retried; all three then returned 404/no captures."
      },
      {
        "target": "instaud.io/private/7fa2c325c0a7395c8856c5bb4f11b5616c6f60c5",
        "match_type": "prefix",
        "query_template": "https://index.commoncrawl.org/{collection}-index?url=instaud.io%2Fprivate%2F7fa2c325c0a7395c8856c5bb4f11b5616c6f60c5&matchType=prefix&output=json",
        "final_status_counts": {
          "404_no_captures": 22
        },
        "retry_note": "Initial 504 responses for 2017-30 and 2017-34 were retried; both then returned 404/no captures."
      }
    ],
    "spot_check_response": {
      "url": "https://index.commoncrawl.org/CC-MAIN-2017-13-index?url=instaudio.s3.amazonaws.com%2Flive%2Fprivate%2F7fa2c325c0a7395c8856c5bb4f11b5616c6f60c5.wav&matchType=prefix&output=json",
      "http_status": 404,
      "body": "{\"message\": \"No Captures found for: instaudio.s3.amazonaws.com/live/private/7fa2c325c0a7395c8856c5bb4f11b5616c6f60c5.wav\"}"
    }
  },
  "arquivo_pt": {
    "checked_utc": "2026-07-27",
    "queries": [
      "https://arquivo.pt/wayback/cdx?url=https://instaudio.s3.amazonaws.com/live/private/7fa2c325c0a7395c8856c5bb4f11b5616c6f60c5.wav&output=json",
      "https://arquivo.pt/wayback/cdx?url=https://instaud.io/private/7fa2c325c0a7395c8856c5bb4f11b5616c6f60c5&output=json",
      "https://arquivo.pt/wayback/cdx?url=https://instaud.io/private/7fa2c325c0a7395c8856c5bb4f11b5616c6f60c5/download&output=json"
    ],
    "response": "Each endpoint returned HTTP 200 text/x-ndjson with an empty body: zero capture rows."
  },
  "conclusion": {
    "recovered_wav": false,
    "supported_statement": "The original WAV was not recovered from the checked live URL, Wayback CDX, Common Crawl 2017–2018 collections, or Arquivo.pt endpoints.",
    "next_valid_evidence": "A byte-bearing contemporary copy with provenance, or a new public archive capture that can be independently fetched and hashed."
  }
}